== sanity test 398c: run fio to test AIO ================= 15:51:27 (1761249087) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.414697 s, 101 MB/s osc.lustre-OST0000-osc-ffff9937d8640000.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=149010: Thu Oct 23 15:54:10 2025 write: IOPS=16, BW=66.0KiB/s (67.6kB/s)(10.0MiB/155079msec); 0 zone resets slat (usec): min=28, max=7111, avg=163.99, stdev=419.67 clat (msec): min=67, max=1961, avg=968.53, stdev=216.22 lat (msec): min=67, max=1962, avg=968.70, stdev=216.18 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 642], 10.00th=[ 743], 20.00th=[ 827], | 30.00th=[ 885], 40.00th=[ 927], 50.00th=[ 978], 60.00th=[ 1020], | 70.00th=[ 1070], 80.00th=[ 1116], 90.00th=[ 1217], 95.00th=[ 1301], | 99.00th=[ 1502], 99.50th=[ 1670], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1955] bw ( KiB/s): min= 15, max= 215, per=24.96%, avg=65.64, stdev=25.23, samples=307 iops : min= 3, max= 53, avg=15.96, stdev= 6.30, samples=307 lat (msec) : 100=0.08%, 250=0.39%, 500=2.97%, 750=7.66%, 1000=44.26% lat (msec) : 2000=44.65% cpu : usr=0.04%, sys=0.28%, ctx=1898, 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=149011: Thu Oct 23 15:54:10 2025 write: IOPS=16, BW=65.8KiB/s (67.4kB/s)(10.0MiB/155559msec); 0 zone resets slat (usec): min=28, max=8416, avg=175.69, stdev=467.65 clat (msec): min=293, max=1960, avg=971.16, stdev=210.88 lat (msec): min=293, max=1960, avg=971.33, stdev=210.88 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 667], 10.00th=[ 751], 20.00th=[ 827], | 30.00th=[ 885], 40.00th=[ 927], 50.00th=[ 969], 60.00th=[ 1011], | 70.00th=[ 1062], 80.00th=[ 1133], 90.00th=[ 1217], 95.00th=[ 1284], | 99.00th=[ 1536], 99.50th=[ 1636], 99.90th=[ 1770], 99.95th=[ 1821], | 99.99th=[ 1955] bw ( KiB/s): min= 8, max= 256, per=25.55%, avg=67.20, stdev=29.51, samples=300 iops : min= 2, max= 64, avg=16.36, stdev= 7.39, samples=300 lat (msec) : 500=3.12%, 750=6.84%, 1000=46.29%, 2000=43.75% cpu : usr=0.04%, sys=0.27%, ctx=1762, 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=149012: Thu Oct 23 15:54:10 2025 write: IOPS=16, BW=65.9KiB/s (67.5kB/s)(10.0MiB/155428msec); 0 zone resets slat (usec): min=28, max=6696, avg=158.03, stdev=389.13 clat (msec): min=292, max=1960, avg=970.13, stdev=217.56 lat (msec): min=292, max=1961, avg=970.29, stdev=217.57 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 659], 10.00th=[ 743], 20.00th=[ 827], | 30.00th=[ 877], 40.00th=[ 927], 50.00th=[ 978], 60.00th=[ 1020], | 70.00th=[ 1070], 80.00th=[ 1116], 90.00th=[ 1217], 95.00th=[ 1301], | 99.00th=[ 1569], 99.50th=[ 1754], 99.90th=[ 1888], 99.95th=[ 1888], | 99.99th=[ 1955] bw ( KiB/s): min= 8, max= 256, per=25.29%, avg=66.52, stdev=28.75, samples=303 iops : min= 2, max= 64, avg=16.18, stdev= 7.19, samples=303 lat (msec) : 500=3.87%, 750=7.42%, 1000=43.75%, 2000=44.96% cpu : usr=0.05%, sys=0.26%, ctx=1787, 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=149013: Thu Oct 23 15:54:10 2025 write: IOPS=16, BW=65.8KiB/s (67.4kB/s)(10.0MiB/155519msec); 0 zone resets slat (usec): min=27, max=14747, avg=161.03, stdev=519.03 clat (msec): min=333, max=1997, avg=970.82, stdev=210.15 lat (msec): min=334, max=1997, avg=970.98, stdev=210.15 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 667], 10.00th=[ 751], 20.00th=[ 827], | 30.00th=[ 885], 40.00th=[ 927], 50.00th=[ 969], 60.00th=[ 1020], | 70.00th=[ 1062], 80.00th=[ 1116], 90.00th=[ 1217], 95.00th=[ 1301], | 99.00th=[ 1502], 99.50th=[ 1636], 99.90th=[ 1955], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 256, per=25.12%, avg=66.07, stdev=26.80, samples=305 iops : min= 1, max= 64, avg=16.07, stdev= 6.71, samples=305 lat (msec) : 500=3.24%, 750=6.88%, 1000=46.95%, 2000=42.93% cpu : usr=0.05%, sys=0.26%, ctx=1809, 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 Run status group 0 (all jobs): WRITE: bw=263KiB/s (270kB/s), 65.8KiB/s-66.0KiB/s (67.4kB/s-67.6kB/s), io=40.0MiB (41.9MB), run=155079-155559msec 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=149045: Thu Oct 23 15:55:59 2025 read: IOPS=12, BW=50.4KiB/s (51.6kB/s)(5048KiB/100153msec) slat (usec): min=2835, max=51169, avg=11278.56, stdev=4992.27 clat (msec): min=17, max=867, avg=393.41, stdev=89.97 lat (msec): min=24, max=875, avg=404.70, stdev=90.65 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 271], 10.00th=[ 288], 20.00th=[ 326], | 30.00th=[ 351], 40.00th=[ 372], 50.00th=[ 393], 60.00th=[ 409], | 70.00th=[ 430], 80.00th=[ 460], 90.00th=[ 502], 95.00th=[ 550], | 99.00th=[ 642], 99.50th=[ 667], 99.90th=[ 793], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7, max= 127, per=25.00%, avg=49.75, stdev=22.10, samples=199 iops : min= 1, max= 31, avg=11.93, stdev= 5.52, samples=199 write: IOPS=12, BW=51.8KiB/s (53.1kB/s)(5192KiB/100153msec); 0 zone resets slat (usec): min=29, max=13206, avg=211.49, stdev=553.06 clat (msec): min=262, max=1398, avg=838.30, stdev=182.27 lat (msec): min=262, max=1399, avg=838.52, stdev=182.30 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 542], 10.00th=[ 617], 20.00th=[ 684], | 30.00th=[ 735], 40.00th=[ 785], 50.00th=[ 835], 60.00th=[ 877], | 70.00th=[ 936], 80.00th=[ 995], 90.00th=[ 1070], 95.00th=[ 1150], | 99.00th=[ 1301], 99.50th=[ 1318], 99.90th=[ 1351], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 15, max= 96, per=24.69%, avg=51.35, stdev=18.15, samples=198 iops : min= 3, max= 24, avg=12.34, stdev= 4.60, samples=198 lat (msec) : 20=0.04%, 50=0.04%, 100=0.35%, 250=1.17%, 500=44.06% lat (msec) : 750=20.39%, 1000=24.22%, 2000=9.73% cpu : usr=0.11%, sys=0.67%, ctx=4098, majf=0, minf=15 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=149046: Thu Oct 23 15:55:59 2025 read: IOPS=12, BW=49.6KiB/s (50.8kB/s)(4976KiB/100342msec) slat (usec): min=2756, max=32500, avg=11353.16, stdev=4937.43 clat (msec): min=19, max=679, avg=389.28, stdev=83.80 lat (msec): min=32, max=701, avg=400.64, stdev=84.78 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 268], 10.00th=[ 288], 20.00th=[ 321], | 30.00th=[ 347], 40.00th=[ 372], 50.00th=[ 384], 60.00th=[ 409], | 70.00th=[ 426], 80.00th=[ 451], 90.00th=[ 493], 95.00th=[ 531], | 99.00th=[ 609], 99.50th=[ 625], 99.90th=[ 659], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 7, max= 119, per=24.74%, avg=49.24, stdev=22.93, samples=198 iops : min= 1, max= 29, avg=11.81, stdev= 5.73, samples=198 write: IOPS=13, BW=52.5KiB/s (53.7kB/s)(5264KiB/100342msec); 0 zone resets slat (usec): min=30, max=8575, avg=232.13, stdev=612.81 clat (msec): min=334, max=1432, avg=838.62, stdev=186.00 lat (msec): min=335, max=1433, avg=838.86, stdev=186.00 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 542], 10.00th=[ 617], 20.00th=[ 684], | 30.00th=[ 735], 40.00th=[ 785], 50.00th=[ 827], 60.00th=[ 877], | 70.00th=[ 936], 80.00th=[ 1003], 90.00th=[ 1083], 95.00th=[ 1150], | 99.00th=[ 1284], 99.50th=[ 1301], 99.90th=[ 1401], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 15, max= 96, per=24.91%, avg=51.81, stdev=18.46, samples=199 iops : min= 3, max= 24, avg=12.45, stdev= 4.67, samples=199 lat (msec) : 20=0.04%, 50=0.12%, 100=0.12%, 250=1.09%, 500=44.34% lat (msec) : 750=19.53%, 1000=24.49%, 2000=10.27% cpu : usr=0.11%, sys=0.67%, ctx=4624, majf=0, minf=18 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=149047: Thu Oct 23 15:55:59 2025 read: IOPS=12, BW=49.7KiB/s (50.9kB/s)(4984KiB/100343msec) slat (usec): min=2477, max=33600, avg=11461.65, stdev=4962.70 clat (msec): min=9, max=701, avg=392.98, stdev=84.20 lat (msec): min=19, max=723, avg=404.44, stdev=84.82 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 271], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 351], 40.00th=[ 372], 50.00th=[ 388], 60.00th=[ 409], | 70.00th=[ 430], 80.00th=[ 456], 90.00th=[ 498], 95.00th=[ 542], | 99.00th=[ 634], 99.50th=[ 642], 99.90th=[ 651], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7, max= 119, per=24.73%, avg=49.22, stdev=22.28, samples=199 iops : min= 1, max= 29, avg=11.80, stdev= 5.56, samples=199 write: IOPS=13, BW=52.4KiB/s (53.6kB/s)(5256KiB/100343msec); 0 zone resets slat (usec): min=29, max=7787, avg=238.06, stdev=546.46 clat (msec): min=238, max=1365, avg=836.11, stdev=187.84 lat (msec): min=238, max=1365, avg=836.35, stdev=187.86 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 550], 10.00th=[ 600], 20.00th=[ 684], | 30.00th=[ 735], 40.00th=[ 785], 50.00th=[ 827], 60.00th=[ 877], | 70.00th=[ 936], 80.00th=[ 995], 90.00th=[ 1083], 95.00th=[ 1150], | 99.00th=[ 1267], 99.50th=[ 1318], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 15, max= 103, per=24.78%, avg=51.55, stdev=17.65, samples=199 iops : min= 3, max= 25, avg=12.39, stdev= 4.43, samples=199 lat (msec) : 10=0.04%, 20=0.04%, 50=0.12%, 100=0.08%, 250=1.09% lat (msec) : 500=44.53%, 750=19.53%, 1000=25.00%, 2000=9.57% cpu : usr=0.09%, sys=0.69%, ctx=4513, majf=0, minf=17 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=149048: Thu Oct 23 15:55:59 2025 read: IOPS=12, BW=50.8KiB/s (52.0kB/s)(5060KiB/99613msec) slat (usec): min=45, max=38881, avg=11416.48, stdev=5175.41 clat (msec): min=6, max=967, avg=389.78, stdev=95.57 lat (msec): min=11, max=978, avg=401.21, stdev=96.33 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 264], 10.00th=[ 288], 20.00th=[ 321], | 30.00th=[ 351], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 409], | 70.00th=[ 426], 80.00th=[ 460], 90.00th=[ 502], 95.00th=[ 550], | 99.00th=[ 625], 99.50th=[ 651], 99.90th=[ 944], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 7, max= 120, per=25.35%, avg=50.44, stdev=21.83, samples=197 iops : min= 1, max= 30, avg=12.11, stdev= 5.46, samples=197 write: IOPS=13, BW=52.0KiB/s (53.2kB/s)(5180KiB/99613msec); 0 zone resets slat (usec): min=28, max=9126, avg=219.56, stdev=525.62 clat (msec): min=109, max=1705, avg=837.50, stdev=198.22 lat (msec): min=109, max=1706, avg=837.72, stdev=198.24 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 542], 10.00th=[ 609], 20.00th=[ 684], | 30.00th=[ 735], 40.00th=[ 785], 50.00th=[ 844], 60.00th=[ 885], | 70.00th=[ 927], 80.00th=[ 995], 90.00th=[ 1099], 95.00th=[ 1150], | 99.00th=[ 1334], 99.50th=[ 1368], 99.90th=[ 1569], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 7, max= 104, per=24.82%, avg=51.62, stdev=20.04, samples=196 iops : min= 1, max= 26, avg=12.40, stdev= 5.03, samples=196 lat (msec) : 10=0.04%, 20=0.08%, 50=0.23%, 100=0.35%, 250=1.60% lat (msec) : 500=43.55%, 750=20.04%, 1000=24.53%, 2000=9.57% cpu : usr=0.09%, sys=0.65%, ctx=4058, majf=0, minf=19 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=200KiB/s (205kB/s), 49.6KiB/s-50.8KiB/s (50.8kB/s-52.0kB/s), io=19.6MiB (20.5MB), run=99613-100343msec WRITE: bw=208KiB/s (213kB/s), 51.8KiB/s-52.5KiB/s (53.1kB/s-53.7kB/s), io=20.4MiB (21.4MB), run=99613-100343msec 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=149066: Thu Oct 23 15:56:06 2025 read: IOPS=2, BW=85.5MiB/s (89.6MB/s)(40.0MiB/468msec) slat (nsec): min=32262k, max=32262k, avg=32262343.00, stdev= 0.00 clat (nsec): min=408899k, max=408899k, avg=408899300.00, stdev= 0.00 lat (nsec): min=441167k, max=441167k, avg=441166675.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 409], 10.00th=[ 409], 20.00th=[ 409], | 30.00th=[ 409], 40.00th=[ 409], 50.00th=[ 409], 60.00th=[ 409], | 70.00th=[ 409], 80.00th=[ 409], 90.00th=[ 409], 95.00th=[ 409], | 99.00th=[ 409], 99.50th=[ 409], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.36%, ctx=8, 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=85.5MiB/s (89.6MB/s), 85.5MiB/s-85.5MiB/s (89.6MB/s-89.6MB/s), io=40.0MiB (41.9MB), run=468-468msec 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