Hi, MTU size? Did you ran an iperf test to see raw bandwidth?
Cordialement / Best regards, Sébastien VIGNERON CRIANN, Ingénieur / Engineer Technopôle du Madrillet 745, avenue de l'Université 76800 Saint-Etienne du Rouvray - France tél. +33 2 32 91 42 91 fax. +33 2 32 91 42 92 http://www.criann.fr mailto:sebastien.vigne...@criann.fr support: supp...@criann.fr > Le 20 nov. 2017 à 11:58, Rudi Ahlers <rudiahl...@gmail.com> a écrit : > > As matter of interest, when I ran the test, the network throughput reached > 3.98Gb/s: > > ens2f0 / traffic statistics > > rx | tx > --------------------------------------+------------------ > bytes 2.59 GiB | 4.63 GiB > --------------------------------------+------------------ > max 2.29 Gbit/s | 3.98 Gbit/s > average 905.58 Mbit/s | 1.62 Gbit/s > min 203 kbit/s | 186 kbit/s > --------------------------------------+------------------ > packets 1980792 | 3354372 > --------------------------------------+------------------ > max 207630 p/s | 342902 p/s > average 82533 p/s | 139765 p/s > min 51 p/s | 56 p/s > --------------------------------------+------------------ > time 24 seconds > > Some more stats: > > root@virt2:~# rados bench -p Data 10 seq > hints = 1 > sec Cur ops started finished avg MB/s cur MB/s last lat(s) avg lat(s) > 0 0 0 0 0 0 - 0 > 1 16 402 386 1543.69 1544 0.00182802 0.0395421 > 2 16 773 757 1513.71 1484 0.00243911 0.0409455 > Total time run: 2.340037 > Total reads made: 877 > Read size: 4194304 > Object size: 4194304 > Bandwidth (MB/sec): 1499.12 > Average IOPS: 374 > Stddev IOPS: 10 > Max IOPS: 386 > Min IOPS: 371 > Average Latency(s): 0.0419036 > Max latency(s): 0.176739 > Min latency(s): 0.00161271 > > > > > root@virt2:~# rados bench -p Data 10 rand > hints = 1 > sec Cur ops started finished avg MB/s cur MB/s last lat(s) avg lat(s) > 0 0 0 0 0 0 - 0 > 1 16 376 360 1439.71 1440 0.0356502 0.0409024 > 2 16 752 736 1471.74 1504 0.0163304 0.0419063 > 3 16 1134 1118 1490.43 1528 0.059643 0.0417043 > 4 16 1515 1499 1498.78 1524 0.0502131 0.0416087 > 5 15 1880 1865 1491.79 1464 0.017407 0.0414158 > 6 16 2254 2238 1491.79 1492 0.0657474 0.0420471 > 7 15 2509 2494 1424.95 1024 0.00182097 0.0440063 > 8 15 2873 2858 1428.81 1456 0.0302541 0.0439319 > 9 15 3243 3228 1434.47 1480 0.108037 0.0438106 > 10 16 3616 3600 1439.81 1488 0.0295953 0.0436184 > Total time run: 10.058519 > Total reads made: 3616 > Read size: 4194304 > Object size: 4194304 > Bandwidth (MB/sec): 1437.99 > Average IOPS: 359 > Stddev IOPS: 37 > Max IOPS: 382 > Min IOPS: 256 > Average Latency(s): 0.0438002 > Max latency(s): 0.664223 > Min latency(s): 0.00156885 > > > > > > > > On Mon, Nov 20, 2017 at 12:38 PM, Rudi Ahlers <rudiahl...@gmail.com > <mailto:rudiahl...@gmail.com>> wrote: > Hi, > > Can someone please help me, how do I improve performance on ou CEPH cluster? > > The hardware in use are as follows: > 3x SuperMicro servers with the following configuration > 12Core Dual XEON 2.2Ghz > 128GB RAM > 2x 400GB Intel DC SSD drives > 4x 8TB Seagate 7200rpm 6Gbps SATA HDD's > 1x SuperMicro DOM for Proxmox / Debian OS > 4x Port 10Gbe NIC > Cisco 10Gbe switch. > > > root@virt2:~# rados bench -p Data 10 write --no-cleanup > hints = 1 > Maintaining 16 concurrent writes of 4194304 bytes to objects of size 4194304 > for up to 10 seconds or 0 objects > Object prefix: benchmark_data_virt2_39099 > sec Cur ops started finished avg MB/s cur MB/s last lat(s) avg lat(s) > 0 0 0 0 0 0 - 0 > 1 16 85 69 275.979 276 0.185576 0.204146 > 2 16 171 155 309.966 344 0.0625409 0.193558 > 3 16 243 227 302.633 288 0.0547129 0.19835 > 4 16 330 314 313.965 348 0.0959492 0.199825 > 5 16 413 397 317.565 332 0.124908 0.196191 > 6 16 494 478 318.633 324 0.1556 0.197014 > 7 15 591 576 329.109 392 0.136305 0.192192 > 8 16 670 654 326.965 312 0.0703808 0.190643 > 9 16 757 741 329.297 348 0.165211 0.192183 > 10 16 828 812 324.764 284 0.0935803 0.194041 > Total time run: 10.120215 > Total writes made: 829 > Write size: 4194304 > Object size: 4194304 > Bandwidth (MB/sec): 327.661 > Stddev Bandwidth: 35.8664 > Max bandwidth (MB/sec): 392 > Min bandwidth (MB/sec): 276 > Average IOPS: 81 > Stddev IOPS: 8 > Max IOPS: 98 > Min IOPS: 69 > Average Latency(s): 0.195191 > Stddev Latency(s): 0.0830062 <tel:083%200062> > Max latency(s): 0.481448 > Min latency(s): 0.0414858 > root@virt2:~# hdparm -I /dev/sda > > > > root@virt2:~# ceph osd tree > ID CLASS WEIGHT TYPE NAME STATUS REWEIGHT PRI-AFF > -1 72.78290 root default > -3 29.11316 host virt1 > 1 hdd 7.27829 osd.1 up 1.00000 1.00000 > 2 hdd 7.27829 osd.2 up 1.00000 1.00000 > 3 hdd 7.27829 osd.3 up 1.00000 1.00000 > 4 hdd 7.27829 osd.4 up 1.00000 1.00000 > -5 21.83487 host virt2 > 5 hdd 7.27829 osd.5 up 1.00000 1.00000 > 6 hdd 7.27829 osd.6 up 1.00000 1.00000 > 7 hdd 7.27829 osd.7 up 1.00000 1.00000 > -7 21.83487 host virt3 > 8 hdd 7.27829 osd.8 up 1.00000 1.00000 > 9 hdd 7.27829 osd.9 up 1.00000 1.00000 > 10 hdd 7.27829 osd.10 up 1.00000 1.00000 > 0 0 osd.0 down 0 1.00000 > > > root@virt2:~# ceph -s > cluster: > id: 278a2e9c-0578-428f-bd5b-3bb348923c27 > health: HEALTH_OK > > services: > mon: 3 daemons, quorum virt1,virt2,virt3 > mgr: virt1(active) > osd: 11 osds: 10 up, 10 in > > data: > pools: 1 pools, 512 pgs > objects: 6084 objects, 24105 MB > usage: 92822 MB used, 74438 GB / 74529 GB avail > pgs: 512 active+clean > > root@virt2:~# ceph -w > cluster: > id: 278a2e9c-0578-428f-bd5b-3bb348923c27 > health: HEALTH_OK > > services: > mon: 3 daemons, quorum virt1,virt2,virt3 > mgr: virt1(active) > osd: 11 osds: 10 up, 10 in > > data: > pools: 1 pools, 512 pgs > objects: 6084 objects, 24105 MB > usage: 92822 MB used, 74438 GB / 74529 GB avail > pgs: 512 active+clean > > > 2017-11-20 12:32:08.199450 mon.virt1 [INF] mon.1 10.10.10.82:6789/0 > <http://10.10.10.82:6789/0> > > > > The SSD drives are used as journal drives: > > root@virt3:~# ceph-disk list | grep /dev/sde | grep osd > /dev/sdb1 ceph data, active, cluster ceph, osd.8, block /dev/sdb2, block.db > /dev/sde1 > root@virt3:~# ceph-disk list | grep /dev/sdf | grep osd > /dev/sdc1 ceph data, active, cluster ceph, osd.9, block /dev/sdc2, block.db > /dev/sdf1 > /dev/sdd1 ceph data, active, cluster ceph, osd.10, block /dev/sdd2, block.db > /dev/sdf2 > > > > I see now /dev/sda doesn't have a journal, though it should have. Not sure > why. > This is the command I used to create it: > > > pveceph createosd /dev/sda -bluestore 1 -journal_dev /dev/sde > > > -- > Kind Regards > Rudi Ahlers > Website: http://www.rudiahlers.co.za <http://www.rudiahlers.co.za/> > > > > -- > Kind Regards > Rudi Ahlers > Website: http://www.rudiahlers.co.za <http://www.rudiahlers.co.za/> > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com <mailto:ceph-users@lists.ceph.com> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > <http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com>
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