== sanity test 398c: run fio to test AIO ================= 21:52:20 (1789782740) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.309214 s, 136 MB/s osc.lustre-OST0000-osc-ffff8fe1766cc800.rpc_stats=clear writing 40M to OST0 by fio with 4 jobs... rand-write: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-write: (groupid=0, jobs=1): err= 0: pid=146456: Fri Sep 18 21:55:10 2026 write: IOPS=15, BW=63.9KiB/s (65.4kB/s)(10.0MiB/160335msec); 0 zone resets slat (usec): min=25, max=17293, avg=266.68, stdev=910.77 clat (msec): min=422, max=2018, avg=1001.08, stdev=236.82 lat (msec): min=422, max=2018, avg=1001.35, stdev=236.80 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 659], 10.00th=[ 743], 20.00th=[ 810], | 30.00th=[ 869], 40.00th=[ 919], 50.00th=[ 978], 60.00th=[ 1028], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1318], 95.00th=[ 1435], | 99.00th=[ 1703], 99.50th=[ 1770], 99.90th=[ 1905], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 128, per=25.99%, avg=66.27, stdev=29.96, samples=304 iops : min= 1, max= 32, avg=16.08, stdev= 7.49, samples=304 lat (msec) : 500=1.29%, 750=9.30%, 1000=44.61%, 2000=44.73%, >=2000=0.08% cpu : usr=0.05%, sys=0.23%, ctx=1851, majf=0, minf=9 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=146457: Fri Sep 18 21:55:10 2026 write: IOPS=16, BW=64.0KiB/s (65.6kB/s)(10.0MiB/159962msec); 0 zone resets slat (usec): min=29, max=14706, avg=281.50, stdev=908.48 clat (msec): min=147, max=1921, avg=999.11, stdev=241.60 lat (msec): min=150, max=1921, avg=999.39, stdev=241.59 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 642], 10.00th=[ 735], 20.00th=[ 810], | 30.00th=[ 860], 40.00th=[ 927], 50.00th=[ 978], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1167], 90.00th=[ 1334], 95.00th=[ 1435], | 99.00th=[ 1754], 99.50th=[ 1787], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1921] bw ( KiB/s): min= 7, max= 128, per=25.21%, avg=64.30, stdev=27.24, samples=313 iops : min= 1, max= 32, avg=15.59, stdev= 6.84, samples=313 lat (msec) : 250=0.04%, 500=0.78%, 750=11.52%, 1000=42.66%, 2000=45.00% cpu : usr=0.04%, sys=0.25%, ctx=1946, majf=0, minf=11 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=146458: Fri Sep 18 21:55:10 2026 write: IOPS=15, BW=63.0KiB/s (65.5kB/s)(10.0MiB/160115msec); 0 zone resets slat (usec): min=24, max=27616, avg=246.63, stdev=888.03 clat (msec): min=111, max=1987, avg=1000.05, stdev=245.74 lat (msec): min=111, max=1987, avg=1000.30, stdev=245.72 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 651], 10.00th=[ 735], 20.00th=[ 802], | 30.00th=[ 860], 40.00th=[ 919], 50.00th=[ 978], 60.00th=[ 1036], | 70.00th=[ 1099], 80.00th=[ 1183], 90.00th=[ 1334], 95.00th=[ 1435], | 99.00th=[ 1720], 99.50th=[ 1821], 99.90th=[ 1955], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 134, per=25.13%, avg=64.09, stdev=28.48, samples=314 iops : min= 1, max= 33, avg=15.54, stdev= 7.14, samples=314 lat (msec) : 250=0.47%, 500=0.35%, 750=11.13%, 1000=42.46%, 2000=45.59% cpu : usr=0.05%, sys=0.24%, ctx=1709, majf=0, minf=10 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=146459: Fri Sep 18 21:55:10 2026 write: IOPS=15, BW=63.8KiB/s (65.3kB/s)(10.0MiB/160509msec); 0 zone resets slat (usec): min=23, max=16315, avg=295.23, stdev=1024.17 clat (msec): min=354, max=1988, avg=1002.16, stdev=239.98 lat (msec): min=354, max=1988, avg=1002.46, stdev=239.98 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 634], 10.00th=[ 726], 20.00th=[ 802], | 30.00th=[ 869], 40.00th=[ 927], 50.00th=[ 978], 60.00th=[ 1036], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1334], 95.00th=[ 1435], | 99.00th=[ 1687], 99.50th=[ 1821], 99.90th=[ 1955], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 128, per=25.15%, avg=64.12, stdev=27.24, samples=314 iops : min= 1, max= 32, avg=15.55, stdev= 6.82, samples=314 lat (msec) : 500=0.62%, 750=10.94%, 1000=43.01%, 2000=45.43% cpu : usr=0.06%, sys=0.24%, ctx=2091, majf=0, minf=11 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): WRITE: bw=255KiB/s (261kB/s), 63.8KiB/s-64.0KiB/s (65.3kB/s-65.6kB/s), io=40.0MiB (41.9MB), run=159962-160509msec mix rw 40M to OST0 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=146491: Fri Sep 18 21:57:34 2026 read: IOPS=9, BW=37.1KiB/s (37.0kB/s)(5048KiB/136125msec) slat (usec): min=35, max=115424, avg=16998.10, stdev=11439.04 clat (msec): min=27, max=2200, avg=527.76, stdev=230.33 lat (msec): min=28, max=2231, avg=544.77, stdev=233.65 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 255], 10.00th=[ 321], 20.00th=[ 368], | 30.00th=[ 414], 40.00th=[ 451], 50.00th=[ 485], 60.00th=[ 531], | 70.00th=[ 575], 80.00th=[ 651], 90.00th=[ 793], 95.00th=[ 936], | 99.00th=[ 1418], 99.50th=[ 1653], 99.90th=[ 2106], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 111, per=26.34%, avg=38.46, stdev=21.72, samples=256 iops : min= 1, max= 27, avg= 9.09, stdev= 5.46, samples=256 write: IOPS=9, BW=38.1KiB/s (39.1kB/s)(5192KiB/136125msec); 0 zone resets slat (usec): min=31, max=11709, avg=309.82, stdev=917.31 clat (msec): min=142, max=3442, avg=1146.52, stdev=487.07 lat (msec): min=142, max=3443, avg=1146.83, stdev=487.05 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 567], 10.00th=[ 625], 20.00th=[ 760], | 30.00th=[ 877], 40.00th=[ 978], 50.00th=[ 1083], 60.00th=[ 1167], | 70.00th=[ 1267], 80.00th=[ 1435], 90.00th=[ 1787], 95.00th=[ 2089], | 99.00th=[ 2769], 99.50th=[ 3004], 99.90th=[ 3272], 99.95th=[ 3440], | 99.99th=[ 3440] bw ( KiB/s): min= 7, max= 95, per=25.50%, avg=38.77, stdev=20.58, samples=261 iops : min= 1, max= 23, avg= 9.16, stdev= 5.19, samples=261 lat (msec) : 50=0.20%, 100=0.35%, 250=2.11%, 500=25.12%, 750=25.51% lat (msec) : 1000=16.25%, 2000=27.19%, >=2000=3.28% cpu : usr=0.08%, sys=0.54%, ctx=4549, majf=0, minf=12 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1262,1298,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146492: Fri Sep 18 21:57:34 2026 read: IOPS=9, BW=36.4KiB/s (37.3kB/s)(4976KiB/136541msec) slat (usec): min=3082, max=79149, avg=16857.05, stdev=10583.29 clat (msec): min=26, max=1649, avg=519.06, stdev=198.02 lat (msec): min=34, max=1664, avg=535.93, stdev=201.47 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 268], 10.00th=[ 321], 20.00th=[ 368], | 30.00th=[ 414], 40.00th=[ 447], 50.00th=[ 481], 60.00th=[ 527], | 70.00th=[ 584], 80.00th=[ 651], 90.00th=[ 760], 95.00th=[ 902], | 99.00th=[ 1183], 99.50th=[ 1318], 99.90th=[ 1603], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 7, max= 120, per=25.71%, avg=37.53, stdev=21.37, samples=259 iops : min= 1, max= 30, avg= 8.85, stdev= 5.37, samples=259 write: IOPS=9, BW=38.6KiB/s (39.5kB/s)(5264KiB/136541msec); 0 zone resets slat (usec): min=33, max=16805, avg=410.88, stdev=1386.38 clat (msec): min=280, max=3439, avg=1151.07, stdev=489.63 lat (msec): min=280, max=3439, avg=1151.49, stdev=489.60 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 567], 10.00th=[ 625], 20.00th=[ 776], | 30.00th=[ 877], 40.00th=[ 969], 50.00th=[ 1053], 60.00th=[ 1150], | 70.00th=[ 1267], 80.00th=[ 1452], 90.00th=[ 1737], 95.00th=[ 2123], | 99.00th=[ 2836], 99.50th=[ 3071], 99.90th=[ 3406], 99.95th=[ 3440], | 99.99th=[ 3440] bw ( KiB/s): min= 7, max= 111, per=25.64%, avg=38.97, stdev=20.35, samples=263 iops : min= 1, max= 27, avg= 9.21, stdev= 5.10, samples=263 lat (msec) : 50=0.23%, 100=0.23%, 250=1.45%, 500=25.47%, 750=25.59% lat (msec) : 1000=16.60%, 2000=27.07%, >=2000=3.36% cpu : usr=0.11%, sys=0.58%, ctx=4802, majf=0, minf=14 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1244,1316,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146493: Fri Sep 18 21:57:34 2026 read: IOPS=9, BW=36.4KiB/s (37.3kB/s)(4984KiB/136770msec) slat (usec): min=2831, max=84967, avg=16733.57, stdev=10379.32 clat (msec): min=23, max=1644, avg=522.14, stdev=204.52 lat (msec): min=30, max=1663, avg=538.88, stdev=208.18 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 268], 10.00th=[ 321], 20.00th=[ 368], | 30.00th=[ 409], 40.00th=[ 451], 50.00th=[ 481], 60.00th=[ 518], | 70.00th=[ 584], 80.00th=[ 659], 90.00th=[ 760], 95.00th=[ 911], | 99.00th=[ 1250], 99.50th=[ 1301], 99.90th=[ 1569], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 7, max= 112, per=25.37%, avg=37.03, stdev=21.72, samples=263 iops : min= 1, max= 28, avg= 8.73, stdev= 5.45, samples=263 write: IOPS=9, BW=38.4KiB/s (39.4kB/s)(5256KiB/136770msec); 0 zone resets slat (usec): min=33, max=22213, avg=301.45, stdev=1008.51 clat (msec): min=188, max=3355, avg=1151.89, stdev=481.67 lat (msec): min=188, max=3357, avg=1152.20, stdev=481.75 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 567], 10.00th=[ 642], 20.00th=[ 776], | 30.00th=[ 894], 40.00th=[ 969], 50.00th=[ 1062], 60.00th=[ 1167], | 70.00th=[ 1267], 80.00th=[ 1435], 90.00th=[ 1754], 95.00th=[ 2089], | 99.00th=[ 2869], 99.50th=[ 3004], 99.90th=[ 3339], 99.95th=[ 3373], | 99.99th=[ 3373] bw ( KiB/s): min= 7, max= 100, per=25.31%, avg=38.47, stdev=19.34, samples=264 iops : min= 1, max= 25, avg= 9.09, stdev= 4.88, samples=264 lat (msec) : 50=0.16%, 100=0.12%, 250=1.95%, 500=25.86%, 750=23.83% lat (msec) : 1000=17.73%, 2000=27.30%, >=2000=3.05% cpu : usr=0.09%, sys=0.55%, ctx=4539, majf=0, minf=11 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1246,1314,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146494: Fri Sep 18 21:57:34 2026 read: IOPS=9, BW=37.1KiB/s (37.9kB/s)(5060KiB/136546msec) slat (usec): min=3007, max=85673, avg=16772.18, stdev=10902.36 clat (msec): min=22, max=1655, avg=534.85, stdev=216.48 lat (msec): min=31, max=1692, avg=551.64, stdev=220.30 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 271], 10.00th=[ 321], 20.00th=[ 372], | 30.00th=[ 414], 40.00th=[ 456], 50.00th=[ 493], 60.00th=[ 542], | 70.00th=[ 592], 80.00th=[ 667], 90.00th=[ 793], 95.00th=[ 944], | 99.00th=[ 1318], 99.50th=[ 1435], 99.90th=[ 1620], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 7, max= 112, per=25.88%, avg=37.79, stdev=20.41, samples=262 iops : min= 1, max= 28, avg= 8.92, stdev= 5.14, samples=262 write: IOPS=9, BW=37.9KiB/s (38.8kB/s)(5180KiB/136546msec); 0 zone resets slat (usec): min=33, max=21232, avg=322.15, stdev=1155.34 clat (msec): min=272, max=3609, avg=1145.54, stdev=479.20 lat (msec): min=272, max=3609, avg=1145.87, stdev=479.16 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 558], 10.00th=[ 642], 20.00th=[ 785], | 30.00th=[ 877], 40.00th=[ 961], 50.00th=[ 1045], 60.00th=[ 1133], | 70.00th=[ 1250], 80.00th=[ 1452], 90.00th=[ 1770], 95.00th=[ 2039], | 99.00th=[ 2735], 99.50th=[ 3306], 99.90th=[ 3440], 99.95th=[ 3608], | 99.99th=[ 3608] bw ( KiB/s): min= 7, max= 111, per=25.10%, avg=38.15, stdev=19.76, samples=264 iops : min= 1, max= 27, avg= 9.01, stdev= 4.96, samples=264 lat (msec) : 50=0.04%, 100=0.12%, 250=1.45%, 500=25.08%, 750=25.12% lat (msec) : 1000=18.44%, 2000=27.03%, >=2000=2.73% cpu : usr=0.09%, sys=0.53%, ctx=4333, majf=0, minf=12 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1265,1295,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=147KiB/s (150kB/s), 36.4KiB/s-37.1KiB/s (37.3kB/s-37.0kB/s), io=19.6MiB (20.5MB), run=136125-136770msec WRITE: bw=153KiB/s (156kB/s), 37.9KiB/s-38.6KiB/s (38.8kB/s-39.5kB/s), io=20.4MiB (21.4MB), run=136125-136770msec AIO with large block size 40M rand-rw: (g=0): rw=randrw, bs=(R) 40.0MiB-40.0MiB, (W) 40.0MiB-40.0MiB, (T) 40.0MiB-40.0MiB, ioengine=libaio, iodepth=16 fio-3.19 Starting 1 process rand-rw: (groupid=0, jobs=1): err= 0: pid=146519: Fri Sep 18 21:57:43 2026 read: IOPS=1, BW=60.5MiB/s (63.5MB/s)(40.0MiB/661msec) slat (nsec): min=31079k, max=31079k, avg=31078638.00, stdev= 0.00 clat (nsec): min=602962k, max=602962k, avg=602962343.00, stdev= 0.00 lat (nsec): min=634045k, max=634045k, avg=634045218.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.82%, ctx=6, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=60.5MiB/s (63.5MB/s), 60.5MiB/s-60.5MiB/s (63.5MB/s-63.5MB/s), io=40.0MiB (41.9MB), run=661-661msec debug=trace inode super iotrace malloc cache info ioctl neterror net warning buffs other dentry nettrace page dlmtrace error emerg ha rpctrace vfstrace reada mmap config console quota sec lfsck hsm snapshot layout