Hi, I have 4 x DELL R630 servers with exact same specs I installed Intel Optane SSDPED1K375GA in all
When comparing fio performance ( both read and write), when is lower than the other 3 ( see below - just read) Any suggestions as to what to check/fix ? BAD server [root@osd04 ~]# fio --filename=/dev/nvme0n1 --direct=1 --sync=1 --rw=read --bs=4k --numjobs=100 --iodepth=1 --runtime=60 --time_based --group_reporting --name=journal-test journal-test: (g=0): rw=read, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=1 ... fio-3.1 Starting 100 processes Jobs: 100 (f=100): [R(100)][100.0%][r=2166MiB/s,w=0KiB/s][r=554k,w=0 IOPS][eta 00m:00s] GOOD server [root@osd02 ~]# fio --filename=/dev/nvme0n1 --direct=1 --sync=1 --rw=read --bs=4k --numjobs=100 --iodepth=1 --runtime=60 --time_based --group_reporting --name=journal-test journal-test: (g=0): rw=read, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=1 ... fio-3.1 Starting 100 processes Jobs: 100 (f=100): [R(100)][100.0%][r=2278MiB/s,w=0KiB/s][r=583k,w=0 IOPS][eta 00m:00s] many thanks steven
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