2017-07-13 4:11 GMT+02:00 Sijie Guo <guosi...@gmail.com>: > On Wed, Jul 12, 2017 at 10:35 PM, Enrico Olivelli <eolive...@gmail.com> > wrote: > > > Sijie, JV, just a recap my point of view: > > - considering latency = "time for asynchAddEntry to complete" > > - there is a some difference from 4.4 and 4.5 in the usage of memory, but > > no so clear > > - the type of GC (parallel vs G1) does not impact very much but with G1 > you > > achieve best latency > > > > Did you try CMS for v3 protocol? >
BK 4.5 + v3 procotol + CMS + throttle = 0 #0 Total wall clock time: 309.0 ms, total callbacks time: 249753 ms, entry size 0,034 MB -> 249,75 ms per entry (latency),0,3 ms per entry (throughput) 110,6 MB/s throughput #1 Total wall clock time: 192.0 ms, total callbacks time: 156268 ms, entry size 0,034 MB -> 156,27 ms per entry (latency),0,2 ms per entry (throughput) 178,0 MB/s throughput #2 Total wall clock time: 129.0 ms, total callbacks time: 95279 ms, entry size 0,034 MB -> 95,28 ms per entry (latency),0,1 ms per entry (throughput) 265,0 MB/s throughput #3 Total wall clock time: 125.0 ms, total callbacks time: 94661 ms, entry size 0,034 MB -> 94,66 ms per entry (latency),0,1 ms per entry (throughput) 273,4 MB/s throughput #4 Total wall clock time: 112.0 ms, total callbacks time: 83015 ms, entry size 0,034 MB -> 83,02 ms per entry (latency),0,1 ms per entry (throughput) 305,2 MB/s throughput #5 Total wall clock time: 111.0 ms, total callbacks time: 82839 ms, entry size 0,034 MB -> 82,84 ms per entry (latency),0,1 ms per entry (throughput) 307,9 MB/s throughput #6 Total wall clock time: 114.0 ms, total callbacks time: 82562 ms, entry size 0,034 MB -> 82,56 ms per entry (latency),0,1 ms per entry (throughput) 299,8 MB/s throughput #7 Total wall clock time: 104.0 ms, total callbacks time: 74356 ms, entry size 0,034 MB -> 74,36 ms per entry (latency),0,1 ms per entry (throughput) 328,7 MB/s throughput #8 Total wall clock time: 110.0 ms, total callbacks time: 83488 ms, entry size 0,034 MB -> 83,49 ms per entry (latency),0,1 ms per entry (throughput) 310,7 MB/s throughput #9 Total wall clock time: 102.0 ms, total callbacks time: 68787 ms, entry size 0,034 MB -> 68,79 ms per entry (latency),0,1 ms per entry (throughput) 335,1 MB/s throughput gc.log Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 JRE (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" with gcc 4.3.0 20080428 (Red Hat 4.3.0-8) Memory: 4k page, physical 32870636k(3276148k free), swap 15622140k(15460604k free) CommandLine flags: -XX:+CMSIncrementalMode -XX:InitialHeapSize=2147483648 -XX:MaxHeapSize=2147483648 -XX:MaxNewSize=697933824 -XX:MaxTenuringThreshold=6 -XX:NewSize=697933824 -XX:OldPLABSize=16 -XX:OldSize=1395867648 -XX:+PrintGC -XX:+PrintGCTimeStamps -XX:+UseCompressedClassPointers -XX:+UseCompressedOops -XX:+UseConcMarkSweepGC -XX:+UseParNewGC 0,630: [GC (Allocation Failure) 545344K->8508K(2029056K), 0,0065802 secs] 1,196: [GC (Allocation Failure) 553852K->117940K(2029056K), 0,0385576 secs] 1,235: [GC (CMS Initial Mark) 119486K(2029056K), 0,0022661 secs] 1,544: [GC (Allocation Failure) 663284K->207833K(2029056K), 0,0330904 secs] 1,731: [GC (CMS Final Remark) 560308K(2029056K), 0,0105624 secs] 1,837: [GC (Allocation Failure) 753177K->214147K(2029056K), 0,0105574 secs] 2,115: [GC (Allocation Failure) 759491K->241263K(2029056K), 0,0166134 secs] BK 4.5 + v2 protocol + CMS + throttle = 0 #0 Total wall clock time: 198.0 ms, total callbacks time: 169954 ms, entry size 0,034 MB -> 169,95 ms per entry (latency),0,2 ms per entry (throughput) 172,6 MB/s throughput #1 Total wall clock time: 106.0 ms, total callbacks time: 70885 ms, entry size 0,034 MB -> 70,89 ms per entry (latency),0,1 ms per entry (throughput) 322,4 MB/s throughput #2 Total wall clock time: 109.0 ms, total callbacks time: 71848 ms, entry size 0,034 MB -> 71,85 ms per entry (latency),0,1 ms per entry (throughput) 313,6 MB/s throughput #3 Total wall clock time: 97.0 ms, total callbacks time: 73583 ms, entry size 0,034 MB -> 73,58 ms per entry (latency),0,1 ms per entry (throughput) 352,4 MB/s throughput #4 Total wall clock time: 91.0 ms, total callbacks time: 61293 ms, entry size 0,034 MB -> 61,29 ms per entry (latency),0,1 ms per entry (throughput) 375,6 MB/s throughput #5 Total wall clock time: 98.0 ms, total callbacks time: 73006 ms, entry size 0,034 MB -> 73,01 ms per entry (latency),0,1 ms per entry (throughput) 348,8 MB/s throughput #6 Total wall clock time: 104.0 ms, total callbacks time: 75696 ms, entry size 0,034 MB -> 75,70 ms per entry (latency),0,1 ms per entry (throughput) 328,7 MB/s throughput #7 Total wall clock time: 103.0 ms, total callbacks time: 79260 ms, entry size 0,034 MB -> 79,26 ms per entry (latency),0,1 ms per entry (throughput) 331,8 MB/s throughput #8 Total wall clock time: 92.0 ms, total callbacks time: 62232 ms, entry size 0,034 MB -> 62,23 ms per entry (latency),0,1 ms per entry (throughput) 371,5 MB/s throughput #9 Total wall clock time: 98.0 ms, total callbacks time: 65359 ms, entry size 0,034 MB -> 65,36 ms per entry (latency),0,1 ms per entry (throughput) 348,8 MB/s throughput gc.log Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 JRE (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" with gcc 4.3.0 20080428 (Red Hat 4.3.0-8) Memory: 4k page, physical 32870636k(3154408k free), swap 15622140k(15460604k free) CommandLine flags: -XX:+CMSIncrementalMode -XX:InitialHeapSize=2147483648 -XX:MaxHeapSize=2147483648 -XX:MaxNewSize=697933824 -XX:MaxTenuringThreshold=6 -XX:NewSize=697933824 -XX:OldPLABSize=16 -XX:OldSize=1395867648 -XX:+PrintGC -XX:+PrintGCTimeStamps -XX:+UseCompressedClassPointers -XX:+UseCompressedOops -XX:+UseConcMarkSweepGC -XX:+UseParNewGC 0,554: [GC (Allocation Failure) 545344K->8624K(2029056K), 0,0060763 secs] 1,478: [GC (Allocation Failure) 552028K->79872K(2029056K), 0,0252399 secs] 1,504: [GC (CMS Initial Mark) 84227K(2029056K), 0,0017813 secs] BK 4.4 + v3protocol + CMS + throttle = 0 #0 Total wall clock time: 214.0 ms, total callbacks time: 207369 ms, entry size 0,034 MB -> 207,37 ms per entry (latency),0,2 ms per entry (throughput) 159,7 MB/s throughput #1 Total wall clock time: 153.0 ms, total callbacks time: 140661 ms, entry size 0,034 MB -> 140,66 ms per entry (latency),0,2 ms per entry (throughput) 223,4 MB/s throughput #2 Total wall clock time: 159.0 ms, total callbacks time: 145131 ms, entry size 0,034 MB -> 145,13 ms per entry (latency),0,2 ms per entry (throughput) 215,0 MB/s throughput #3 Total wall clock time: 109.0 ms, total callbacks time: 105018 ms, entry size 0,034 MB -> 105,02 ms per entry (latency),0,1 ms per entry (throughput) 313,6 MB/s throughput #4 Total wall clock time: 114.0 ms, total callbacks time: 110111 ms, entry size 0,034 MB -> 110,11 ms per entry (latency),0,1 ms per entry (throughput) 299,8 MB/s throughput #5 Total wall clock time: 118.0 ms, total callbacks time: 111534 ms, entry size 0,034 MB -> 111,53 ms per entry (latency),0,1 ms per entry (throughput) 289,7 MB/s throughput #6 Total wall clock time: 98.0 ms, total callbacks time: 87425 ms, entry size 0,034 MB -> 87,43 ms per entry (latency),0,1 ms per entry (throughput) 348,8 MB/s throughput #7 Total wall clock time: 135.0 ms, total callbacks time: 129583 ms, entry size 0,034 MB -> 129,58 ms per entry (latency),0,1 ms per entry (throughput) 253,2 MB/s throughput #8 Total wall clock time: 99.0 ms, total callbacks time: 84986 ms, entry size 0,034 MB -> 84,99 ms per entry (latency),0,1 ms per entry (throughput) 345,2 MB/s throughput #9 Total wall clock time: 125.0 ms, total callbacks time: 117492 ms, entry size 0,034 MB -> 117,49 ms per entry (latency),0,1 ms per entry (throughput) 273,4 MB/s throughput gc.log Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 JRE (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" with gcc 4.3.0 20080428 (Red Hat 4.3.0-8) Memory: 4k page, physical 32870636k(3212484k free), swap 15622140k(15460604k free) CommandLine flags: -XX:+CMSIncrementalMode -XX:InitialHeapSize=2147483648 -XX:MaxHeapSize=2147483648 -XX:MaxNewSize=697933824 -XX:MaxTenuringThreshold=6 -XX:NewSize=697933824 -XX:OldPLABSize=16 -XX:OldSize=1395867648 -XX:+PrintGC -XX:+PrintGCTimeStamps -XX:+UseCompressedClassPointers -XX:+UseCompressedOops -XX:+UseConcMarkSweepGC -XX:+UseParNewGC 0,572: [GC (Allocation Failure) 545344K->8016K(2029056K), 0,0057737 secs] 0,882: [GC (Allocation Failure) 553360K->88089K(2029056K), 0,0205542 secs] 0,903: [GC (CMS Initial Mark) 93974K(2029056K), 0,0010542 secs] 1,100: [GC (Allocation Failure) 633433K->94935K(2029056K), 0,0359948 secs] 1,221: [GC (CMS Final Remark) 384627K(2029056K), 0,0079453 secs] 1,313: [GC (Allocation Failure) 640279K->98309K(2029056K), 0,0157774 secs] 1,481: [GC (Allocation Failure) 643653K->154062K(2029056K), 0,0179418 secs] 1,677: [GC (Allocation Failure) 699406K->210685K(2029056K), 0,0312668 secs] 1,709: [GC (CMS Initial Mark) 211186K(2029056K), 0,0006615 secs] 1,894: [GC (Allocation Failure) 756029K->263420K(2029056K), 0,0168112 secs] BK 4.5 + throttle = 5000 + CMS + v3 protocol #0 Total wall clock time: 248.0 ms, total callbacks time: 102307 ms, entry size 0,034 MB -> 102,31 ms per entry (latency),0,2 ms per entry (throughput) 137,8 MB/s throughput #1 Total wall clock time: 205.0 ms, total callbacks time: 12282 ms, entry size 0,034 MB -> 12,28 ms per entry (latency),0,2 ms per entry (throughput) 166,7 MB/s throughput #2 Total wall clock time: 204.0 ms, total callbacks time: 6920 ms, entry size 0,034 MB -> 6,92 ms per entry (latency),0,2 ms per entry (throughput) 167,5 MB/s throughput #3 Total wall clock time: 221.0 ms, total callbacks time: 13589 ms, entry size 0,034 MB -> 13,59 ms per entry (latency),0,2 ms per entry (throughput) 154,7 MB/s throughput #4 Total wall clock time: 204.0 ms, total callbacks time: 6023 ms, entry size 0,034 MB -> 6,02 ms per entry (latency),0,2 ms per entry (throughput) 167,5 MB/s throughput #5 Total wall clock time: 205.0 ms, total callbacks time: 6350 ms, entry size 0,034 MB -> 6,35 ms per entry (latency),0,2 ms per entry (throughput) 166,7 MB/s throughput #6 Total wall clock time: 205.0 ms, total callbacks time: 7849 ms, entry size 0,034 MB -> 7,85 ms per entry (latency),0,2 ms per entry (throughput) 166,7 MB/s throughput #7 Total wall clock time: 204.0 ms, total callbacks time: 6443 ms, entry size 0,034 MB -> 6,44 ms per entry (latency),0,2 ms per entry (throughput) 167,5 MB/s throughput #8 Total wall clock time: 206.0 ms, total callbacks time: 7009 ms, entry size 0,034 MB -> 7,01 ms per entry (latency),0,2 ms per entry (throughput) 165,9 MB/s throughput #9 Total wall clock time: 205.0 ms, total callbacks time: 6150 ms, entry size 0,034 MB -> 6,15 ms per entry (latency),0,2 ms per entry (throughput) 166,7 MB/s throughput Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 JRE (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" with gcc 4.3.0 20080428 (Red Hat 4.3.0-8) Memory: 4k page, physical 32870636k(3247600k free), swap 15622140k(15460604k free) CommandLine flags: -XX:+CMSIncrementalMode -XX:InitialHeapSize=2147483648 -XX:MaxHeapSize=2147483648 -XX:MaxNewSize=697933824 -XX:MaxTenuringThreshold=6 -XX:NewSize=697933824 -XX:OldPLABSize=16 -XX:OldSize=1395867648 -XX:+PrintGC -XX:+PrintGCTimeStamps -XX:+UseCompressedClassPointers -XX:+UseCompressedOops -XX:+UseConcMarkSweepGC -XX:+UseParNewGC 0,568: [GC (Allocation Failure) 545344K->8497K(2029056K), 0,0060302 secs] 1,059: [GC (Allocation Failure) 553841K->112138K(2029056K), 0,0206230 secs] 1,080: [GC (CMS Initial Mark) 117602K(2029056K), 0,0013282 secs] 1,561: [GC (Allocation Failure) 654247K->189231K(2029056K), 0,0379235 secs] 2,079: [GC (Allocation Failure) 731215K->185468K(2029056K), 0,0107924 secs] 2,320: [GC (CMS Final Remark) 431925K(2029056K), 0,0076070 secs] 2,635: [GC (Allocation Failure) 730812K->217376K(2029056K), 0,0136162 secs] BK 4.4 + throttle = 5000 + CMS + v3 protocol #0 Total wall clock time: 208.0 ms, total callbacks time: 55274 ms, entry size 0,034 MB -> 55,27 ms per entry (latency),0,2 ms per entry (throughput) 164,3 MB/s throughput #1 Total wall clock time: 207.0 ms, total callbacks time: 11848 ms, entry size 0,034 MB -> 11,85 ms per entry (latency),0,2 ms per entry (throughput) 165,1 MB/s throughput #2 Total wall clock time: 208.0 ms, total callbacks time: 9442 ms, entry size 0,034 MB -> 9,44 ms per entry (latency),0,2 ms per entry (throughput) 164,3 MB/s throughput #3 Total wall clock time: 204.0 ms, total callbacks time: 6739 ms, entry size 0,034 MB -> 6,74 ms per entry (latency),0,2 ms per entry (throughput) 167,5 MB/s throughput #4 Total wall clock time: 205.0 ms, total callbacks time: 7546 ms, entry size 0,034 MB -> 7,55 ms per entry (latency),0,2 ms per entry (throughput) 166,7 MB/s throughput #5 Total wall clock time: 204.0 ms, total callbacks time: 6594 ms, entry size 0,034 MB -> 6,59 ms per entry (latency),0,2 ms per entry (throughput) 167,5 MB/s throughput #6 Total wall clock time: 205.0 ms, total callbacks time: 5885 ms, entry size 0,034 MB -> 5,89 ms per entry (latency),0,2 ms per entry (throughput) 166,7 MB/s throughput #7 Total wall clock time: 204.0 ms, total callbacks time: 7722 ms, entry size 0,034 MB -> 7,72 ms per entry (latency),0,2 ms per entry (throughput) 167,5 MB/s throughput #8 Total wall clock time: 224.0 ms, total callbacks time: 5968 ms, entry size 0,034 MB -> 5,97 ms per entry (latency),0,2 ms per entry (throughput) 152,6 MB/s throughput #9 Total wall clock time: 209.0 ms, total callbacks time: 6731 ms, entry size 0,034 MB -> 6,73 ms per entry (latency),0,2 ms per entry (throughput) 163,5 MB/s throughput gc.log Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 JRE (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" with gcc 4.3.0 20080428 (Red Hat 4.3.0-8) Memory: 4k page, physical 32870636k(3291888k free), swap 15622140k(15460604k free) CommandLine flags: -XX:+CMSIncrementalMode -XX:InitialHeapSize=2147483648 -XX:MaxHeapSize=2147483648 -XX:MaxNewSize=697933824 -XX:MaxTenuringThreshold=6 -XX:NewSize=697933824 -XX:OldPLABSize=16 -XX:OldSize=1395867648 -XX:+PrintGC -XX:+PrintGCTimeStamps -XX:+UseCompressedClassPointers -XX:+UseCompressedOops -XX:+UseConcMarkSweepGC -XX:+UseParNewGC 0,554: [GC (Allocation Failure) 545344K->8022K(2029056K), 0,0055210 secs] 0,890: [GC (Allocation Failure) 553366K->93114K(2029056K), 0,0177003 secs] 0,909: [GC (CMS Initial Mark) 97210K(2029056K), 0,0011810 secs] 1,204: [GC (Allocation Failure) 638458K->102278K(2029056K), 0,0181779 secs] 1,536: [GC (Allocation Failure) 645878K->103955K(2029056K), 0,0088187 secs] 1,679: [GC (CMS Final Remark) 353595K(2029056K), 0,0078553 secs] 1,858: [GC (Allocation Failure) 649299K->78654K(2029056K), 0,0064803 secs] 2,187: [GC (Allocation Failure) 623998K->120130K(2029056K), 0,0125856 secs] 2,200: [GC (CMS Initial Mark) 121879K(2029056K), 0,0003934 secs] 2,518: [GC (Allocation Failure) 665474K->193813K(2029056K), 0,0202701 secs] > > > - using the v2 protocol brings huge improvements in the usage of memory > > - if you want good "latency" for each entry you have to set at least > > throttle to 1000, but the throughput will be very lower (from 30 MB/s vs > > 300 MB/s on my disk) > > > > What type of disk do you have? What is your filesystem mount options? > Disk type: SSD this is fstab line: /dev/mapper/Ssd-Home /home ext4 defaults,discard 1 2 uname -a Linux DNA101PC193.diennea.lan 4.11.5-100.fc24.x86_64 #1 SMP Wed Jun 14 17:21:39 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux > > When you did the test, how did GC activities look like when setting > throttle to be more than 1000? > I have added new results, see above > > I think the latency looked "bad" when throttle was more than 1000, is > because of GC. Did you have that test results? > I apologize, in the below results when I did not write 'throttle = 0" I meant throttle = 1000 Did you take a look an the code of the bench ? Maybe a double check would be useful, many times badly written benchmarks are not useful at all Thank you -- Enrico > > > > below the results of my simple bench > > > > Enrico > > > > Bench code: > > https://github.com/eolivelli/bookkeepers-benchs/blob/ > master/src/test/java/ > > BookKeeperWriteTest.java > > > > Results: > > with 4.5.0-SNAPSHOT and v2 protocol - G1 GC > > > > #0 Total wall clock time: 1000.0 ms, total callbacks time: 8460 ms, entry > > size 0,034 MB -> 8,46 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,2 MB/s throughput > > #1 Total wall clock time: 1005.0 ms, total callbacks time: 4529 ms, entry > > size 0,034 MB -> 4,53 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,0 MB/s throughput > > #2 Total wall clock time: 1002.0 ms, total callbacks time: 4293 ms, entry > > size 0,034 MB -> 4,29 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #3 Total wall clock time: 1003.0 ms, total callbacks time: 4317 ms, entry > > size 0,034 MB -> 4,32 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #4 Total wall clock time: 1002.0 ms, total callbacks time: 4553 ms, entry > > size 0,034 MB -> 4,55 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #5 Total wall clock time: 1001.0 ms, total callbacks time: 4448 ms, entry > > size 0,034 MB -> 4,45 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #6 Total wall clock time: 1004.0 ms, total callbacks time: 4449 ms, entry > > size 0,034 MB -> 4,45 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,0 MB/s throughput > > #7 Total wall clock time: 1003.0 ms, total callbacks time: 4504 ms, entry > > size 0,034 MB -> 4,50 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #8 Total wall clock time: 1002.0 ms, total callbacks time: 4290 ms, entry > > size 0,034 MB -> 4,29 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #9 Total wall clock time: 1003.0 ms, total callbacks time: 4441 ms, entry > > size 0,034 MB -> 4,44 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > > > gc.log > > Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 JRE > > (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" with gcc > 4.3.0 > > 20080428 (Red Hat 4.3.0-8) > > Memory: 4k page, physical 32870636k(9153868k free), swap > > 15622140k(15464700k free) > > CommandLine flags: -XX:InitialHeapSize=2147483648 > > -XX:MaxHeapSize=2147483648 -XX:+PrintGC -XX:+PrintGCTimeStamps > > -XX:+UseCompressedClassPointers -XX:+UseCompressedOops -XX:+UseG1GC > > 1,988: [GC pause (G1 Evacuation Pause) (young) 146M->59M(2048M), > 0,0104300 > > secs] > > > > > > Results, with 4.5.0-SNAPSHOT and v3 protocol - G1 GC > > #0 Total wall clock time: 1001.0 ms, total callbacks time: 11800 ms, > entry > > size 0,034 MB -> 11,80 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #1 Total wall clock time: 1001.0 ms, total callbacks time: 4585 ms, entry > > size 0,034 MB -> 4,59 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #2 Total wall clock time: 1002.0 ms, total callbacks time: 4458 ms, entry > > size 0,034 MB -> 4,46 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #3 Total wall clock time: 1002.0 ms, total callbacks time: 4471 ms, entry > > size 0,034 MB -> 4,47 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #4 Total wall clock time: 1004.0 ms, total callbacks time: 4473 ms, entry > > size 0,034 MB -> 4,47 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,0 MB/s throughput > > #5 Total wall clock time: 1003.0 ms, total callbacks time: 4477 ms, entry > > size 0,034 MB -> 4,48 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #6 Total wall clock time: 1007.0 ms, total callbacks time: 4424 ms, entry > > size 0,034 MB -> 4,42 ms per entry (latency),1,0 ms per entry > (throughput) > > 33,9 MB/s throughput > > #7 Total wall clock time: 1005.0 ms, total callbacks time: 4576 ms, entry > > size 0,034 MB -> 4,58 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,0 MB/s throughput > > #8 Total wall clock time: 1002.0 ms, total callbacks time: 4447 ms, entry > > size 0,034 MB -> 4,45 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #9 Total wall clock time: 1007.0 ms, total callbacks time: 4501 ms, entry > > size 0,034 MB -> 4,50 ms per entry (latency),1,0 ms per entry > (throughput) > > 33,9 MB/s throughput > > > > gc.log > > Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 JRE > > (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" with gcc > 4.3.0 > > 20080428 (Red Hat 4.3.0-8) > > Memory: 4k page, physical 32870636k(9042512k free), swap > > 15622140k(15464700k free) > > CommandLine flags: -XX:InitialHeapSize=2147483648 > > -XX:MaxHeapSize=2147483648 -XX:+PrintGC -XX:+PrintGCTimeStamps > > -XX:+UseCompressedClassPointers -XX:+UseCompressedOops -XX:+UseG1GC > > 0,830: [GC pause (G1 Evacuation Pause) (young) 118M->33M(2048M), > 0,0116376 > > secs] > > 1,372: [GC pause (G1 Evacuation Pause) (young) 162M->73M(2048M), > 0,0055103 > > secs] > > 2,172: [GC pause (G1 Evacuation Pause) (young) 227M->99M(2048M), > 0,0023962 > > secs] > > 10,358: [GC pause (G1 Evacuation Pause) (young) 1620M->122M(2048M), > > 0,0026519 secs] > > 11,676: [GC pause (Metadata GC Threshold) (young) (initial-mark) > > 242M->114M(2048M), 0,0021797 secs] > > 11,678: [GC concurrent-root-region-scan-start] > > 11,679: [GC concurrent-root-region-scan-end, 0,0007421 secs] > > 11,679: [GC concurrent-mark-start] > > 11,684: [GC concurrent-mark-end, 0,0046645 secs] > > 11,684: [GC remark, 0,0027234 secs] > > 11,687: [GC cleanup 115M->111M(2048M), 0,0008957 secs] > > 11,688: [GC concurrent-cleanup-start] > > 11,688: [GC concurrent-cleanup-end, 0,0000070 secs] > > > > > > With 4.4.0 - v3 protocol - G1 GC > > #0 Total wall clock time: 1001.0 ms, total callbacks time: 6723 ms, entry > > size 0,034 MB -> 6,72 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #1 Total wall clock time: 1003.0 ms, total callbacks time: 4495 ms, entry > > size 0,034 MB -> 4,50 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #2 Total wall clock time: 1001.0 ms, total callbacks time: 4406 ms, entry > > size 0,034 MB -> 4,41 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #3 Total wall clock time: 1005.0 ms, total callbacks time: 4457 ms, entry > > size 0,034 MB -> 4,46 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,0 MB/s throughput > > #4 Total wall clock time: 1002.0 ms, total callbacks time: 4388 ms, entry > > size 0,034 MB -> 4,39 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #5 Total wall clock time: 1004.0 ms, total callbacks time: 4451 ms, entry > > size 0,034 MB -> 4,45 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,0 MB/s throughput > > #6 Total wall clock time: 1003.0 ms, total callbacks time: 4574 ms, entry > > size 0,034 MB -> 4,57 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #7 Total wall clock time: 1003.0 ms, total callbacks time: 4523 ms, entry > > size 0,034 MB -> 4,52 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #8 Total wall clock time: 1004.0 ms, total callbacks time: 4450 ms, entry > > size 0,034 MB -> 4,45 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,0 MB/s throughput > > #9 Total wall clock time: 1002.0 ms, total callbacks time: 4542 ms, entry > > size 0,034 MB -> 4,54 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > > > gc.log > > Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 JRE > > (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" with gcc > 4.3.0 > > 20080428 (Red Hat 4.3.0-8) > > Memory: 4k page, physical 32870636k(8931792k free), swap > > 15622140k(15464700k free) > > CommandLine flags: -XX:InitialHeapSize=2147483648 > > -XX:MaxHeapSize=2147483648 -XX:+PrintGC -XX:+PrintGCTimeStamps > > -XX:+UseCompressedClassPointers -XX:+UseCompressedOops -XX:+UseG1GC > > 0,750: [GC pause (G1 Evacuation Pause) (young) 106M->14M(2048M), > 0,0070948 > > secs] > > 1,089: [GC pause (G1 Evacuation Pause) (young) 127M->21M(2048M), > 0,0038837 > > secs] > > 1,608: [GC pause (G1 Evacuation Pause) (young) 193M->41M(2048M), > 0,0039903 > > secs] > > 3,745: [GC pause (G1 Evacuation Pause) (young) 733M->49M(2048M), > 0,0046991 > > secs] > > 7,990: [GC pause (G1 Evacuation Pause) (young) 1423M->65M(2048M), > 0,0052844 > > secs] > > > > > > > > with 4.4 - v3 protocol Parallel GC > > > > #0 Total wall clock time: 999.0 ms, total callbacks time: 6007 ms, entry > > size 0,034 MB -> 6,01 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,2 MB/s throughput > > #1 Total wall clock time: 1001.0 ms, total callbacks time: 4813 ms, entry > > size 0,034 MB -> 4,81 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #2 Total wall clock time: 1003.0 ms, total callbacks time: 4580 ms, entry > > size 0,034 MB -> 4,58 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #3 Total wall clock time: 1002.0 ms, total callbacks time: 4349 ms, entry > > size 0,034 MB -> 4,35 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #4 Total wall clock time: 1002.0 ms, total callbacks time: 4456 ms, entry > > size 0,034 MB -> 4,46 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #5 Total wall clock time: 1006.0 ms, total callbacks time: 4504 ms, entry > > size 0,034 MB -> 4,50 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,0 MB/s throughput > > #6 Total wall clock time: 1003.0 ms, total callbacks time: 4387 ms, entry > > size 0,034 MB -> 4,39 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #7 Total wall clock time: 1002.0 ms, total callbacks time: 4643 ms, entry > > size 0,034 MB -> 4,64 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #8 Total wall clock time: 1002.0 ms, total callbacks time: 4548 ms, entry > > size 0,034 MB -> 4,55 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #9 Total wall clock time: 1001.0 ms, total callbacks time: 4633 ms, entry > > size 0,034 MB -> 4,63 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > > > gc.log > > Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 JRE > > (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" with gcc > 4.3.0 > > 20080428 (Red Hat 4.3.0-8) > > Memory: 4k page, physical 32870636k(8877776k free), swap > > 15622140k(15464700k free) > > CommandLine flags: -XX:InitialHeapSize=2147483648 > > -XX:MaxHeapSize=2147483648 -XX:+PrintGC -XX:+PrintGCTimeStamps > > -XX:+UseCompressedClassPointers -XX:+UseCompressedOops > -XX:+UseParallelGC > > 0,603: [GC (Allocation Failure) 524800K->8488K(2010112K), 0,0056746 > secs] > > 1,996: [GC (Allocation Failure) 533268K->181534K(2010112K), 0,0248460 > > secs] > > 3,475: [GC (Allocation Failure) 703337K->237612K(2010112K), 0,0192195 > > secs] > > 4,963: [GC (Allocation Failure) 762412K->212913K(2010112K), 0,0085357 > > secs] > > 6,473: [GC (Allocation Failure) 737684K->192597K(1951232K), 0,0065437 > > secs] > > 8,019: [GC (Allocation Failure) 704597K->319617K(1863680K), 0,0189275 > > secs] > > 9,008: [GC (Allocation Failure) 651905K->315463K(1853952K), 0,0121369 > > secs] > > 9,997: [GC (Allocation Failure) 647729K->418132K(1848832K), 0,0222260 > > secs] > > 10,742: [GC (Allocation Failure) 679764K->340097K(1878528K), 0,0111347 > > secs] > > > > > > with 4.5 - v2 protocol Parallel GC > > > > #0 Total wall clock time: 1004.0 ms, total callbacks time: 8030 ms, entry > > size 0,034 MB -> 8,03 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,0 MB/s throughput > > #1 Total wall clock time: 1003.0 ms, total callbacks time: 4394 ms, entry > > size 0,034 MB -> 4,39 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #2 Total wall clock time: 1002.0 ms, total callbacks time: 4417 ms, entry > > size 0,034 MB -> 4,42 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #3 Total wall clock time: 1005.0 ms, total callbacks time: 4362 ms, entry > > size 0,034 MB -> 4,36 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,0 MB/s throughput > > #4 Total wall clock time: 1003.0 ms, total callbacks time: 4435 ms, entry > > size 0,034 MB -> 4,44 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #5 Total wall clock time: 1002.0 ms, total callbacks time: 4489 ms, entry > > size 0,034 MB -> 4,49 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #6 Total wall clock time: 1002.0 ms, total callbacks time: 4346 ms, entry > > size 0,034 MB -> 4,35 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #7 Total wall clock time: 1004.0 ms, total callbacks time: 4474 ms, entry > > size 0,034 MB -> 4,47 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,0 MB/s throughput > > #8 Total wall clock time: 1005.0 ms, total callbacks time: 4436 ms, entry > > size 0,034 MB -> 4,44 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,0 MB/s throughput > > #9 Total wall clock time: 1001.0 ms, total callbacks time: 4322 ms, entry > > size 0,034 MB -> 4,32 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > > > gc.log > > Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 JRE > > (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" with gcc > 4.3.0 > > 20080428 (Red Hat 4.3.0-8) > > Memory: 4k page, physical 32870636k(8951980k free), swap > > 15622140k(15464700k free) > > CommandLine flags: -XX:InitialHeapSize=2147483648 > > -XX:MaxHeapSize=2147483648 -XX:+PrintGC -XX:+PrintGCTimeStamps > > -XX:+UseCompressedClassPointers -XX:+UseCompressedOops > -XX:+UseParallelGC > > 0,583: [GC (Allocation Failure) 524800K->8921K(2010112K), 0,0054470 > secs] > > 6,397: [GC (Allocation Failure) 533721K->178956K(2010112K), 0,0306493 > secs > > > > > > with 4.5 - v3 protocol Parallel GC > > > > #0 Total wall clock time: 1002.0 ms, total callbacks time: 10679 ms, > entry > > size 0,034 MB -> 10,68 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #1 Total wall clock time: 1003.0 ms, total callbacks time: 4802 ms, entry > > size 0,034 MB -> 4,80 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #2 Total wall clock time: 1003.0 ms, total callbacks time: 4479 ms, entry > > size 0,034 MB -> 4,48 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #3 Total wall clock time: 1002.0 ms, total callbacks time: 4726 ms, entry > > size 0,034 MB -> 4,73 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #4 Total wall clock time: 1007.0 ms, total callbacks time: 4393 ms, entry > > size 0,034 MB -> 4,39 ms per entry (latency),1,0 ms per entry > (throughput) > > 33,9 MB/s throughput > > #5 Total wall clock time: 1006.0 ms, total callbacks time: 4619 ms, entry > > size 0,034 MB -> 4,62 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,0 MB/s throughput > > #6 Total wall clock time: 1002.0 ms, total callbacks time: 4346 ms, entry > > size 0,034 MB -> 4,35 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #7 Total wall clock time: 1002.0 ms, total callbacks time: 4402 ms, entry > > size 0,034 MB -> 4,40 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,1 MB/s throughput > > #8 Total wall clock time: 1004.0 ms, total callbacks time: 4487 ms, entry > > size 0,034 MB -> 4,49 ms per entry (latency),1,0 ms per entry > (throughput) > > 34,0 MB/s throughput > > #9 Total wall clock time: 1007.0 ms, total callbacks time: 4315 ms, entry > > size 0,034 MB -> 4,32 ms per entry (latency),1,0 ms per entry > (throughput) > > 33,9 MB/s throughput > > > > gc.log > > > > Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 JRE > > (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" with gcc > 4.3.0 > > 20080428 (Red Hat 4.3.0-8) > > Memory: 4k page, physical 32870636k(8921388k free), swap > > 15622140k(15464700k free) > > CommandLine flags: -XX:InitialHeapSize=2147483648 > > -XX:MaxHeapSize=2147483648 -XX:+PrintGC -XX:+PrintGCTimeStamps > > -XX:+UseCompressedClassPointers -XX:+UseCompressedOops > -XX:+UseParallelGC > > 0,563: [GC (Allocation Failure) 524800K->8935K(2010112K), 0,0055378 > secs] > > 1,936: [GC (Allocation Failure) 533735K->187494K(2010112K), 0,0281195 > > secs] > > 3,917: [GC (Allocation Failure) 712294K->275491K(2010112K), 0,0298168 > > secs] > > 6,385: [GC (Allocation Failure) 798141K->394430K(2010112K), 0,0279730 > > secs] > > 8,934: [GC (Allocation Failure) 919230K->394530K(2008576K), 0,0127794 > > secs] > > 11,634: [GC (Metadata GC Threshold) 811154K->348997K(1868288K), > 0,0080161 > > secs] > > 11,642: [Full GC (Metadata GC Threshold) 348997K->39874K(1868288K), > > 0,0247462 secs] > > > > > > 4.5 v3 protocol parallel GC throttle = 0 > > > > #0 Total wall clock time: 334.0 ms, total callbacks time: 267444 ms, > entry > > size 0,034 MB -> 267,44 ms per entry (latency),0,3 ms per entry > > (throughput) 102,3 MB/s throughput > > #1 Total wall clock time: 189.0 ms, total callbacks time: 154428 ms, > entry > > size 0,034 MB -> 154,43 ms per entry (latency),0,2 ms per entry > > (throughput) 180,8 MB/s throughput > > #2 Total wall clock time: 136.0 ms, total callbacks time: 103012 ms, > entry > > size 0,034 MB -> 103,01 ms per entry (latency),0,1 ms per entry > > (throughput) 251,3 MB/s throughput > > #3 Total wall clock time: 156.0 ms, total callbacks time: 113315 ms, > entry > > size 0,034 MB -> 113,32 ms per entry (latency),0,2 ms per entry > > (throughput) 219,1 MB/s throughput > > #4 Total wall clock time: 110.0 ms, total callbacks time: 79296 ms, entry > > size 0,034 MB -> 79,30 ms per entry (latency),0,1 ms per entry > (throughput) > > 310,7 MB/s throughput > > #5 Total wall clock time: 104.0 ms, total callbacks time: 71213 ms, entry > > size 0,034 MB -> 71,21 ms per entry (latency),0,1 ms per entry > (throughput) > > 328,7 MB/s throughput > > #6 Total wall clock time: 161.0 ms, total callbacks time: 72447 ms, entry > > size 0,034 MB -> 72,45 ms per entry (latency),0,2 ms per entry > (throughput) > > 212,3 MB/s throughput > > #7 Total wall clock time: 103.0 ms, total callbacks time: 82783 ms, entry > > size 0,034 MB -> 82,78 ms per entry (latency),0,1 ms per entry > (throughput) > > 331,8 MB/s throughput > > #8 Total wall clock time: 138.0 ms, total callbacks time: 106086 ms, > entry > > size 0,034 MB -> 106,09 ms per entry (latency),0,1 ms per entry > > (throughput) 247,7 MB/s throughput > > #9 Total wall clock time: 118.0 ms, total callbacks time: 77750 ms, entry > > size 0,034 MB -> 77,75 ms per entry (latency),0,1 ms per entry > (throughput) > > 289,7 MB/s throughput > > > > Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 JRE > > (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" with gcc > 4.3.0 > > 20080428 (Red Hat 4.3.0-8) > > Memory: 4k page, physical 32870636k(8858832k free), swap > > 15622140k(15464700k free) > > CommandLine flags: -XX:InitialHeapSize=2147483648 > > -XX:MaxHeapSize=2147483648 -XX:+PrintGC -XX:+PrintGCTimeStamps > > -XX:+UseCompressedClassPointers -XX:+UseCompressedOops > -XX:+UseParallelGC > > 0,660: [GC (Allocation Failure) 524800K->8955K(2010112K), 0,0061442 > secs] > > 1,288: [GC (Allocation Failure) 533726K->191538K(2010112K), 0,0329663 > > secs] > > 1,634: [GC (Allocation Failure) 716338K->349468K(2010112K), 0,0508922 > > secs] > > 1,942: [GC (Allocation Failure) 874268K->671717K(2010112K), 0,0609749 > > secs] > > 2,266: [GC (Allocation Failure) 1196517K->781335K(2010112K), 0,0320305 > > secs] > > > > 4.5 v2protocol throttle = 0 G1 GC > > > > #0 Total wall clock time: 200.0 ms, total callbacks time: 173682 ms, > entry > > size 0,034 MB -> 173,68 ms per entry (latency),0,2 ms per entry > > (throughput) 170,9 MB/s throughput > > #1 Total wall clock time: 128.0 ms, total callbacks time: 89987 ms, entry > > size 0,034 MB -> 89,99 ms per entry (latency),0,1 ms per entry > (throughput) > > 267,0 MB/s throughput > > #2 Total wall clock time: 117.0 ms, total callbacks time: 86411 ms, entry > > size 0,034 MB -> 86,41 ms per entry (latency),0,1 ms per entry > (throughput) > > 292,1 MB/s throughput > > #3 Total wall clock time: 95.0 ms, total callbacks time: 64054 ms, entry > > size 0,034 MB -> 64,05 ms per entry (latency),0,1 ms per entry > (throughput) > > 359,8 MB/s throughput > > #4 Total wall clock time: 92.0 ms, total callbacks time: 60863 ms, entry > > size 0,034 MB -> 60,86 ms per entry (latency),0,1 ms per entry > (throughput) > > 371,5 MB/s throughput > > #5 Total wall clock time: 92.0 ms, total callbacks time: 62026 ms, entry > > size 0,034 MB -> 62,03 ms per entry (latency),0,1 ms per entry > (throughput) > > 371,5 MB/s throughput > > #6 Total wall clock time: 93.0 ms, total callbacks time: 65033 ms, entry > > size 0,034 MB -> 65,03 ms per entry (latency),0,1 ms per entry > (throughput) > > 367,5 MB/s throughput > > #7 Total wall clock time: 88.0 ms, total callbacks time: 59851 ms, entry > > size 0,034 MB -> 59,85 ms per entry (latency),0,1 ms per entry > (throughput) > > 388,4 MB/s throughput > > #8 Total wall clock time: 93.0 ms, total callbacks time: 61816 ms, entry > > size 0,034 MB -> 61,82 ms per entry (latency),0,1 ms per entry > (throughput) > > 367,5 MB/s throughput > > #9 Total wall clock time: 93.0 ms, total callbacks time: 70397 ms, entry > > size 0,034 MB -> 70,40 ms per entry (latency),0,1 ms per entry > (throughput) > > 367,5 MB/s throughput > > > > > > Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 JRE > > (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" with gcc > 4.3.0 > > 20080428 (Red Hat 4.3.0-8) > > Memory: 4k page, physical 32870636k(8894828k free), swap > > 15622140k(15464700k free) > > CommandLine flags: -XX:InitialHeapSize=2147483648 > > -XX:MaxHeapSize=2147483648 -XX:+PrintGC -XX:+PrintGCTimeStamps > > -XX:+UseCompressedClassPointers -XX:+UseCompressedOops -XX:+UseG1GC > > 1,078: [GC pause (G1 Evacuation Pause) (young) 150M->65M(2048M), > 0,0138100 > > secs] > > > > bk 4.5 v3 protocol G1 GC throttle = 0 > > > > #0 Total wall clock time: 275.0 ms, total callbacks time: 238043 ms, > entry > > size 0,034 MB -> 238,04 ms per entry (latency),0,3 ms per entry > > (throughput) 124,3 MB/s throughput > > #1 Total wall clock time: 148.0 ms, total callbacks time: 106877 ms, > entry > > size 0,034 MB -> 106,88 ms per entry (latency),0,1 ms per entry > > (throughput) 230,9 MB/s throughput > > #2 Total wall clock time: 130.0 ms, total callbacks time: 96448 ms, entry > > size 0,034 MB -> 96,45 ms per entry (latency),0,1 ms per entry > (throughput) > > 262,9 MB/s throughput > > #3 Total wall clock time: 118.0 ms, total callbacks time: 78246 ms, entry > > size 0,034 MB -> 78,25 ms per entry (latency),0,1 ms per entry > (throughput) > > 289,7 MB/s throughput > > #4 Total wall clock time: 109.0 ms, total callbacks time: 79110 ms, entry > > size 0,034 MB -> 79,11 ms per entry (latency),0,1 ms per entry > (throughput) > > 313,6 MB/s throughput > > #5 Total wall clock time: 124.0 ms, total callbacks time: 86652 ms, entry > > size 0,034 MB -> 86,65 ms per entry (latency),0,1 ms per entry > (throughput) > > 275,6 MB/s throughput > > #6 Total wall clock time: 110.0 ms, total callbacks time: 76729 ms, entry > > size 0,034 MB -> 76,73 ms per entry (latency),0,1 ms per entry > (throughput) > > 310,7 MB/s throughput > > #7 Total wall clock time: 110.0 ms, total callbacks time: 80104 ms, entry > > size 0,034 MB -> 80,10 ms per entry (latency),0,1 ms per entry > (throughput) > > 310,7 MB/s throughput > > #8 Total wall clock time: 104.0 ms, total callbacks time: 73514 ms, entry > > size 0,034 MB -> 73,51 ms per entry (latency),0,1 ms per entry > (throughput) > > 328,7 MB/s throughput > > #9 Total wall clock time: 102.0 ms, total callbacks time: 74487 ms, entry > > size 0,034 MB -> 74,49 ms per entry (latency),0,1 ms per entry > (throughput) > > 335,1 MB/s throughput > > > > Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 JRE > > (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" with gcc > 4.3.0 > > 20080428 (Red Hat 4.3.0-8) > > Memory: 4k page, physical 32870636k(8958604k free), swap > > 15622140k(15464700k free) > > CommandLine flags: -XX:InitialHeapSize=2147483648 > > -XX:MaxHeapSize=2147483648 -XX:+PrintGC -XX:+PrintGCTimeStamps > > -XX:+UseCompressedClassPointers -XX:+UseCompressedOops -XX:+UseG1GC > > 0,876: [GC pause (G1 Evacuation Pause) (young) 102M->19M(2048M), > 0,0107143 > > secs] > > 0,989: [GC pause (G1 Evacuation Pause) (young) 152M->81M(2048M), > 0,0074561 > > secs] > > 1,125: [GC pause (G1 Evacuation Pause) (young) 198M->108M(2048M), > 0,0038296 > > secs] > > 1,286: [GC pause (G1 Evacuation Pause) (young) 306M->146M(2048M), > 0,0034297 > > secs] > > > > > > > > 2017-07-12 3:07 GMT+02:00 Sijie Guo <guosi...@gmail.com>: > > > > > On Wed, Jul 12, 2017 at 2:04 AM, Venkateswara Rao Jujjuri < > > > jujj...@gmail.com > > > > wrote: > > > > > > > Enrico, let me try to paraphrase the issue. > > > > > > > > - With G1GC + Netty 4.1 is giving you roughly same perf as prev > > release. > > > Is > > > > that accurate statement? > > > > But you are still seeing latency spikes with Netty 4.1?? > > > > > > > > > > > > > > > > > > > I did not fully > > > > understand your sleep usecase. > > > > How sleep is yielding better latency? > > > > > > > > > > I think the "sleep(1)" in Enrico's benchmark is for throttling. It is > > same > > > as setting 'throttle' value to 1000 in his test. > > > > > > - Sijie > > > > > > > > > > > > > > > > > Thanks, > > > > JV > > > > > > > > On Tue, Jul 11, 2017 at 8:27 AM, Enrico Olivelli < > eolive...@gmail.com> > > > > wrote: > > > > > > > > > Another interesting thing...during my profiling activity I gave a > > > chance > > > > to > > > > > the old v2 protocol and activated the gc logs, as expected the > result > > > is > > > > > that with v2 protocol there is almost no GC activity during the > > > benchmark > > > > > -- Enrico > > > > > > > > > > 2017-07-11 12:07 GMT+02:00 Enrico Olivelli <eolive...@gmail.com>: > > > > > > > > > > > > > > > > > > > > > > > 2017-07-11 11:04 GMT+02:00 Sijie Guo <guosi...@gmail.com>: > > > > > > > > > > > >> I think Netty4 requires more offheap memory. you might need to > > tune > > > > the > > > > > >> JVM > > > > > >> settings. I doubt that latency diff coming from the JVM gc. > > > > > >> > > > > > >> A simple thing to verify that is to dump the gc log by adding " > > > > > -Xloggc:" > > > > > >> setting and compare the gc logs between versions. > > > > > >> > > > > > > > > > > > > > > > > > > Enabling G1 GC (-XX:+UseG1GC) apparently solves the difference > > > between > > > > > 4.4 > > > > > > and 4.5. > > > > > > > > > > > > And I a loop the bench (in order to have a warm JVM) numbers > become > > > > more > > > > > > stable and similar to each other > > > > > > > > > > > > I have the "other issue" pending, the fact that latency (time for > > > > > > asynchAddEntry to complete) is really bad and unpredictable (from > > 100 > > > > ms > > > > > to > > > > > > 2000ms) > > > > > > > > > > > > and if I introduce a Thread.sleep(1) all the callbacks complete > > > always > > > > > > with success in < 10ms. This happens even with G1 GC. > > > > > > > > > > > > Without the "sleep(1)" my machine uses a lot of CPU (I have 8 > > "CPUs") > > > > and > > > > > > with the "sleep(1)" the load is slightly lower > > > > > > > > > > > > Honestly for me this is still a problem and I hope that with your > > > help > > > > I > > > > > > will be able to find the problem, wherever it is (in BK code or > in > > > the > > > > > way > > > > > > I am doing the bench) > > > > > > > > > > > > I will try to create a new more complete bench > > > > > > > > > > > > -- Enrico > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >> > > > > > >> - Sijie > > > > > >> > > > > > >> On Tue, Jul 11, 2017 at 12:16 AM, Enrico Olivelli < > > > > eolive...@gmail.com> > > > > > >> wrote: > > > > > >> > > > > > >> > a did a bisect and the culprit (in my opinion) is the switch > to > > > > netty > > > > > 4 > > > > > >> for > > > > > >> > the performance regression from 4.5 and 4.4 > > > > > >> > > > > > > >> > at commit: > > > > > >> > commit 811ece53a1c975c4e768422f3d622ac9de6b3e41 > > > BOOKKEEPER-1058: > > > > > >> Ignore > > > > > >> > already deleted ledger on replication audit > > > > > >> > > > > > > >> > Total time: 204 ms > > > > > >> > Total real time: 79 ms per entry > > > > > >> > > > > > > >> > at commit: > > > > > >> > commit 74f795136c1fff3badb29fc982d0cc2d43096b45 > > BOOKKEEPER-1008: > > > > > Netty > > > > > >> 4.1 > > > > > >> > > > > > > >> > Total time: 308 ms > > > > > >> > Total real time: 189 ms per entry > > > > > >> > > > > > > >> > I have tried with epoll and with local transport, results does > > not > > > > > >> change. > > > > > >> > I tried to upgrade to netty 4.1.13 too, but no change > > > > > >> > > > > > > >> > Could it be the memory allocator of netty which is > overwhelmed > > > with > > > > > >> sudden > > > > > >> > bursts of allocation ? > > > > > >> > I did some trial with UnpooledByteBufAllocator.DEFAULT and it > > > > helps a > > > > > >> > little, we get to "110 ms per entry" vs "189 ms per entry" > > > > > >> > > > > > > >> > the bench is here: > > > > > >> > https://github.com/eolivelli/bookkeepers-benchs/blob/master/ > > > > > >> src/test/java/ > > > > > >> > BookKeeperWriteTest.java > > > > > >> > > > > > > >> > > > > > > >> > -- Enrico > > > > > >> > > > > > > >> > > > > > > >> > > > > > > >> > 2017-07-10 19:46 GMT+02:00 Enrico Olivelli < > eolive...@gmail.com > > >: > > > > > >> > > > > > > >> > > > > > > > >> > > > > > > > >> > > Il lun 10 lug 2017, 18:21 Venkateswara Rao Jujjuri < > > > > > jujj...@gmail.com > > > > > >> > > > > > > >> > ha > > > > > >> > > scritto: > > > > > >> > > > > > > > >> > >> With Netty changes, lack of native epoll() has huge perf > > impact > > > > as > > > > > >> per > > > > > >> > >> Kishore. > > > > > >> > >> Are you sure you are using epoll()? > > > > > >> > >> > > > > > >> > > > > > > > >> > > Yes. I tried with netty local transport too. It seems not > > > related > > > > to > > > > > >> > netty > > > > > >> > > to me. > > > > > >> > > I will double check, tomorrow > > > > > >> > > Enrico > > > > > >> > > > > > > > >> > > > > > > > >> > >> On Mon, Jul 10, 2017 at 1:49 AM, Enrico Olivelli < > > > > > >> eolive...@gmail.com> > > > > > >> > >> wrote: > > > > > >> > >> > > > > > >> > >> > 2017-07-10 10:40 GMT+02:00 Sijie Guo <guosi...@gmail.com > >: > > > > > >> > >> > > > > > > >> > >> > > Also one other thing to check is the JVM settings. Do > you > > > > mind > > > > > >> > sharing > > > > > >> > >> > that > > > > > >> > >> > > as well? > > > > > >> > >> > > > > > > > >> > >> > > > > > > > >> > >> > this is the surefire config, I am using oracle jdk 8 > > > > > >> > >> > > > > > > >> > >> > <plugin> > > > > > >> > >> > <artifactId>maven-surefire- > > > plugin</artifactId> > > > > > >> > >> > <version>2.20</version> > > > > > >> > >> > <configuration> > > > > > >> > >> > <forkCount>1</forkCount> > > > > > >> > >> > <reuseForks>false</reuseForks> > > > > > >> > >> > > > > > > >> > >> > <forkedProcessTimeoutInSeconds>300</ > > > > > forkedProcessTimeoutInSeconds> > > > > > >> > >> > <argLine>-Xmx2G > > > > > >> > >> > -Djava.io.tmpdir=${basedir}/target</argLine> > > > > > >> > >> > </configuration> > > > > > >> > >> > </plugin> > > > > > >> > >> > > > > > > >> > >> > -- Enrico > > > > > >> > >> > > > > > > >> > >> > > > > > > >> > >> > > > > > > >> > >> > > Sijie > > > > > >> > >> > > > > > > > >> > >> > > On Jul 10, 2017 1:17 AM, "Sijie Guo" < > guosi...@gmail.com > > > > > > > > wrote: > > > > > >> > >> > > > > > > > >> > >> > > > I am not sure if there is any default values changed > > for > > > > > >> journal > > > > > >> > >> > > settings. > > > > > >> > >> > > > I would suggest you testing by setting specifically > the > > > > > journal > > > > > >> > >> > settings. > > > > > >> > >> > > > > > > > > >> > >> > > > Also if you can share your benchmark, that would be > > good > > > > for > > > > > >> other > > > > > >> > >> > people > > > > > >> > >> > > > to verify. > > > > > >> > >> > > > > > > > > >> > >> > > > Sijie > > > > > >> > >> > > > > > > > > >> > >> > > > On Jul 10, 2017 12:32 AM, "Enrico Olivelli" < > > > > > >> eolive...@gmail.com> > > > > > >> > >> > wrote: > > > > > >> > >> > > > > > > > > >> > >> > > >> Hi, > > > > > >> > >> > > >> I am doing some benchmarks on BK, I see that from > > 4.4.0 > > > to > > > > > >> 4.5.0 > > > > > >> > >> there > > > > > >> > >> > > is > > > > > >> > >> > > >> something "slow" but I cannot understand what. I > > really > > > > hope > > > > > >> that > > > > > >> > >> I am > > > > > >> > >> > > >> wrong. > > > > > >> > >> > > >> > > > > > >> > >> > > >> I am working with writes, I will pass to reads once > > > writes > > > > > >> will > > > > > >> > be > > > > > >> > >> ok. > > > > > >> > >> > > >> My problem is both on latency (time for AddComplete > > > > callback > > > > > >> to > > > > > >> > >> > > complete) > > > > > >> > >> > > >> and on overall throuput. > > > > > >> > >> > > >> > > > > > >> > >> > > >> Actually I have two distinct problems, but working > on > > > the > > > > > >> first > > > > > >> > >> > problem > > > > > >> > >> > > I > > > > > >> > >> > > >> found a performance regression. > > > > > >> > >> > > >> I know that talking about "slow" things it is an > hard > > > > > matter, > > > > > >> so > > > > > >> > I > > > > > >> > >> > will > > > > > >> > >> > > >> try > > > > > >> > >> > > >> do describe as much as possible all the aspects > that I > > > > think > > > > > >> are > > > > > >> > >> > > relevant. > > > > > >> > >> > > >> > > > > > >> > >> > > >> First problem: under certain load performance > > > > > >> > (latency+throughput) > > > > > >> > >> > > degrade > > > > > >> > >> > > >> too much > > > > > >> > >> > > >> Second problem: the first problem is more evident in > > > 4.5.0 > > > > > >> > >> > > >> > > > > > >> > >> > > >> Let's describe my testcase and why I am worried. > > > > > >> > >> > > >> The bench issues a batch of asyncAddEntry and prints > > the > > > > > >> average > > > > > >> > >> time > > > > > >> > >> > > for > > > > > >> > >> > > >> AddComplete to complete and the overall clock time. > > > > > >> > >> > > >> > > > > > >> > >> > > >> This is the code > > > > > >> > >> > > >> > > > > > >> > >> > > >> private static final byte[] TEST_DATA = new byte[35 > * > > > > 1024]; > > > > > >> > >> > > >> private static final int testsize = 1000; > > > > > >> > >> > > >> > > > > > >> > >> > > >> ...... (start 1 bookie, see below) > > > > > >> > >> > > >> ClientConfiguration clientConfiguration > = > > > new > > > > > >> > >> > > >> ClientConfiguration(); > > > > > >> > >> > > >> clientConfiguration.setZkServ > > > > > >> ers(env.getAddress()); > > > > > >> > >> > > >> try (BookKeeper bk = new BookKeeper( > > > > > >> > >> clientConfiguration); > > > > > >> > >> > > >> LedgerHandle lh = bk.createLedger(1, > > 1, > > > 1, > > > > > >> > >> > > >> BookKeeper.DigestType.CRC32, new byte[0])) { > > > > > >> > >> > > >> LongAdder totalTime = new > LongAdder(); > > > > > >> > >> > > >> long _start = > > > System.currentTimeMillis(); > > > > > >> > >> > > >> Collection<CompletableFuture> batch > = > > > new > > > > > >> > >> > > >> ConcurrentLinkedQueue<>(); > > > > > >> > >> > > >> for (int i = 0; i < testsize; i++) { > > > > > >> > >> > > >> CompletableFuture cf = new > > > > > >> > CompletableFuture(); > > > > > >> > >> > > >> batch.add(cf); > > > > > >> > >> > > >> lh.asyncAddEntry(TEST_DATA, new > > > > > >> > >> > > >> AsyncCallback.AddCallback() { > > > > > >> > >> > > >> > > > > > >> > >> > > >> long start = > > > > > >> System.currentTimeMillis(); > > > > > >> > >> > > >> > > > > > >> > >> > > >> @Override > > > > > >> > >> > > >> public void addComplete(int > > rc, > > > > > >> > >> LedgerHandle > > > > > >> > >> > lh, > > > > > >> > >> > > >> long entryId, Object ctx) { > > > > > >> > >> > > >> long now = > > > > > >> > >> > > >> System.currentTimeMillis(); > > > > > >> > >> > > >> CompletableFuture _cf = > > > > > >> > >> > (CompletableFuture) > > > > > >> > >> > > >> ctx; > > > > > >> > >> > > >> if (rc == > > > > BKException.Code.OK) { > > > > > >> > >> > > >> _cf.complete(""); > > > > > >> > >> > > >> } else { > > > > > >> > >> > > >> > > > > > >> > >> > > >> _cf.completeExceptionally(BKException.create(rc)); > > > > > >> > >> > > >> } > > > > > >> > >> > > >> totalTime.add(now - > > start); > > > > > >> > >> > > >> } > > > > > >> > >> > > >> }, cf); > > > > > >> > >> > > >> // Thread.sleep(1); // this > is > > > the > > > > > >> > >> tirgger!!! > > > > > >> > >> > > >> } > > > > > >> > >> > > >> assertEquals(testsize, > batch.size()); > > > > > >> > >> > > >> for (CompletableFuture f : batch) { > > > > > >> > >> > > >> f.get(); > > > > > >> > >> > > >> } > > > > > >> > >> > > >> long _stop = > > System.currentTimeMillis(); > > > > > >> > >> > > >> long delta = _stop - _start; > > > > > >> > >> > > >> System.out.println("Total time: " + > > > delta > > > > + > > > > > " > > > > > >> > ms"); > > > > > >> > >> > > >> System.out.println("Total real time: > > " + > > > > > >> > >> > > totalTime.sum() + > > > > > >> > >> > > >> " ms -> "+(totalTime.sum()/testsize)+" ms per > entry"); > > > > > >> > >> > > >> } > > > > > >> > >> > > >> > > > > > >> > >> > > >> Bookie config: > > > > > >> > >> > > >> ServerConfiguration conf = new > > > > > ServerConfiguration(); > > > > > >> > >> > > >> conf.setBookiePort(5621); > > > > > >> > >> > > >> conf.setUseHostNameAsBookieID(true); > > > > > >> > >> > > >> > > > > > >> > >> > > >> Path targetDir = > path.resolve("bookie_data"); > > > > > >> > >> > > >> conf.setZkServers("localhost:1282"); > > > > > >> > >> > > >> conf.setLedgerDirNames(new > > > > > >> > >> > > >> String[]{targetDir.toAbsolutePath().toString()}); > > > > > >> > >> > > >> conf.setJournalDirName( > > > > targetDir.toAbsolutePath(). > > > > > >> > >> > toString()); > > > > > >> > >> > > >> conf.setFlushInterval(1000); > > > > > >> > >> > > >> conf.setJournalFlushWhenQueueEmpty(true); > > > > > >> > >> > > >> conf.setProperty("journalMaxGroupWaitMSec", > > 0); > > > > > >> > >> > > >> conf.setProperty(" > > > journalBufferedWritesThreshold > > > > ", > > > > > >> > 1024); > > > > > >> > >> > > >> conf.setAutoRecoveryDaemonEnabled(false); > > > > > >> > >> > > >> conf.setEnableLocalTransport(true); > > > > > >> > >> > > >> conf.setAllowLoopback(true); > > > > > >> > >> > > >> > > > > > >> > >> > > >> The tests starts one ZK server + 1 Bookie + the > > testcase > > > > in > > > > > a > > > > > >> > JUnit > > > > > >> > >> > test > > > > > >> > >> > > >> > > > > > >> > >> > > >> > > > > > >> > >> > > >> Results: > > > > > >> > >> > > >> A - BK-4.4.0: > > > > > >> > >> > > >> Total time: 209 ms > > > > > >> > >> > > >> Total real time: 194337 ms -> 194 ms per entry > > > > > >> > >> > > >> > > > > > >> > >> > > >> B - BK-4.5.0-SNAPSHOT: > > > > > >> > >> > > >> Total time: 269 ms > > > > > >> > >> > > >> Total real time: 239918 ms -> 239 ms per entry > > > > > >> > >> > > >> > > > > > >> > >> > > >> C - BK-4.4,0 with sleep(1): > > > > > >> > >> > > >> Total time: 1113 ms (1000 ms sleep time) > > > > > >> > >> > > >> Total real time: 4238 ms -> 4 ms per entry > > > > > >> > >> > > >> > > > > > >> > >> > > >> D - BK-4.5,0-SNAPSHOT with sleep(1): > > > > > >> > >> > > >> Total time: 1121 ms (1000 ms sleep time) > > > > > >> > >> > > >> Total real time: 8018 ms -> 8 ms per entry > > > > > >> > >> > > >> > > > > > >> > >> > > >> Problem 1 (unexpected performance degradation): > > > > > >> > >> > > >> Times per entry (latency) are incredibly slow in > > cases A > > > > and > > > > > >> B. > > > > > >> > >> > > >> If I add a sleep(1) between one call of > asyncAddEntry > > > and > > > > > the > > > > > >> > next > > > > > >> > >> > > >> "latency" is around 4 ms per entry. > > > > > >> > >> > > >> > > > > > >> > >> > > >> Problem 2: worse performance on 4.5.0 > > > > > >> > >> > > >> Compare A vs B and C vs D, it is self-explaining. > > > > > >> > >> > > >> > > > > > >> > >> > > >> I am running the test on my laptop, with linux 64bit > > > > > >> (Fedora), 12 > > > > > >> > >> GB > > > > > >> > >> > > RAM, > > > > > >> > >> > > >> no swap, on an SSD disk. The results are similar on > > > other > > > > > >> > >> computers. > > > > > >> > >> > > >> > > > > > >> > >> > > >> It seems that if I issue too many addEntry the > systems > > > > slows > > > > > >> > down. > > > > > >> > >> > > >> > > > > > >> > >> > > >> Please note this fact: > > > > > >> > >> > > >> numbers for case A and B (without sleep) mean that > all > > > the > > > > > >> adds > > > > > >> > got > > > > > >> > >> > > >> completed almost together > > > > > >> > >> > > >> > > > > > >> > >> > > >> for the 4.5 vs 4.4 case: > > > > > >> > >> > > >> I tried to disable all of the threadpool > enhancements > > > > > >> (different > > > > > >> > >> > > >> read/write > > > > > >> > >> > > >> pools)....it makes not difference > > > > > >> > >> > > >> > > > > > >> > >> > > >> Questions: > > > > > >> > >> > > >> > > > > > >> > >> > > >> Is the "grouping" logic of the journal ? > > > > > >> > >> > > >> > > > > > >> > >> > > >> Is there a way of making a burst of 1000 async > writes > > on > > > > the > > > > > >> same > > > > > >> > >> > ledger > > > > > >> > >> > > >> perform <10 ms latency ? (in my real case I have > > bursts > > > > of > > > > > >> > >> concurrent > > > > > >> > >> > > >> writes from different threads) > > > > > >> > >> > > >> > > > > > >> > >> > > >> Why 4.5.0 is anyway slower ? > > > > > >> > >> > > >> > > > > > >> > >> > > >> Thanks > > > > > >> > >> > > >> > > > > > >> > >> > > >> -- Enrico > > > > > >> > >> > > >> > > > > > >> > >> > > > > > > > > >> > >> > > > > > > > >> > >> > > > > > > >> > >> > > > > > >> > >> > > > > > >> > >> > > > > > >> > >> -- > > > > > >> > >> Jvrao > > > > > >> > >> --- > > > > > >> > >> First they ignore you, then they laugh at you, then they > > fight > > > > you, > > > > > >> then > > > > > >> > >> you win. - Mahatma Gandhi > > > > > >> > >> > > > > > >> > > -- > > > > > >> > > > > > > > >> > > > > > > > >> > > -- Enrico Olivelli > > > > > >> > > > > > > > >> > > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > Jvrao > > > > --- > > > > First they ignore you, then they laugh at you, then they fight you, > > then > > > > you win. - Mahatma Gandhi > > > > > > > > > >
