== sanity test 398c: run fio to test AIO ================= 04:46:57 (1787734017) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.708154 s, 59.2 MB/s osc.lustre-OST0000-osc-ffff9e959fd27000.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=146162: Wed Aug 26 04:49:25 2026 write: IOPS=18, BW=74.1KiB/s (75.9kB/s)(10.0MiB/138128msec); 0 zone resets slat (usec): min=28, max=15387, avg=283.21, stdev=910.77 clat (msec): min=77, max=1799, avg=862.48, stdev=246.71 lat (msec): min=78, max=1800, avg=862.77, stdev=246.74 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 447], 10.00th=[ 584], 20.00th=[ 684], | 30.00th=[ 751], 40.00th=[ 802], 50.00th=[ 844], 60.00th=[ 894], | 70.00th=[ 961], 80.00th=[ 1053], 90.00th=[ 1183], 95.00th=[ 1318], | 99.00th=[ 1519], 99.50th=[ 1586], 99.90th=[ 1703], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 7, max= 200, per=25.26%, avg=74.53, stdev=31.64, samples=270 iops : min= 1, max= 50, avg=18.11, stdev= 7.95, samples=270 lat (msec) : 100=0.04%, 250=1.13%, 500=4.73%, 750=24.45%, 1000=45.12% lat (msec) : 2000=24.53% cpu : usr=0.06%, sys=0.30%, ctx=1832, 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=146163: Wed Aug 26 04:49:25 2026 write: IOPS=18, BW=73.0KiB/s (75.7kB/s)(10.0MiB/138463msec); 0 zone resets slat (usec): min=23, max=18759, avg=272.45, stdev=967.72 clat (msec): min=238, max=1694, avg=864.33, stdev=238.13 lat (msec): min=238, max=1694, avg=864.60, stdev=238.13 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 447], 10.00th=[ 592], 20.00th=[ 701], | 30.00th=[ 760], 40.00th=[ 802], 50.00th=[ 835], 60.00th=[ 894], | 70.00th=[ 961], 80.00th=[ 1053], 90.00th=[ 1167], 95.00th=[ 1267], | 99.00th=[ 1536], 99.50th=[ 1620], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 256, per=25.28%, avg=74.57, stdev=35.61, samples=270 iops : min= 1, max= 64, avg=18.11, stdev= 8.93, samples=270 lat (msec) : 250=0.62%, 500=4.84%, 750=23.36%, 1000=45.74%, 2000=25.43% cpu : usr=0.06%, sys=0.30%, ctx=1750, 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=146164: Wed Aug 26 04:49:25 2026 write: IOPS=18, BW=73.9KiB/s (75.7kB/s)(10.0MiB/138544msec); 0 zone resets slat (usec): min=29, max=15373, avg=276.00, stdev=880.03 clat (msec): min=257, max=1701, avg=864.81, stdev=238.68 lat (msec): min=257, max=1701, avg=865.09, stdev=238.67 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 489], 10.00th=[ 592], 20.00th=[ 676], | 30.00th=[ 751], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 911], | 70.00th=[ 969], 80.00th=[ 1053], 90.00th=[ 1150], 95.00th=[ 1250], | 99.00th=[ 1552], 99.50th=[ 1603], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 7, max= 256, per=25.10%, avg=74.04, stdev=31.64, samples=272 iops : min= 1, max= 64, avg=17.99, stdev= 7.94, samples=272 lat (msec) : 500=5.23%, 750=24.84%, 1000=44.61%, 2000=25.31% cpu : usr=0.06%, sys=0.29%, ctx=1868, 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=146165: Wed Aug 26 04:49:25 2026 write: IOPS=18, BW=74.1KiB/s (75.8kB/s)(10.0MiB/138265msec); 0 zone resets slat (usec): min=28, max=16164, avg=254.36, stdev=774.14 clat (msec): min=246, max=1618, avg=863.02, stdev=240.59 lat (msec): min=246, max=1618, avg=863.28, stdev=240.58 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 464], 10.00th=[ 584], 20.00th=[ 676], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 911], | 70.00th=[ 969], 80.00th=[ 1045], 90.00th=[ 1167], 95.00th=[ 1284], | 99.00th=[ 1519], 99.50th=[ 1586], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 7, max= 256, per=24.91%, avg=73.49, stdev=32.78, samples=274 iops : min= 1, max= 64, avg=17.85, stdev= 8.22, samples=274 lat (msec) : 250=0.62%, 500=5.08%, 750=24.88%, 1000=44.34%, 2000=25.08% cpu : usr=0.06%, sys=0.27%, ctx=1875, 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=296KiB/s (303kB/s), 73.9KiB/s-74.1KiB/s (75.7kB/s-75.9kB/s), io=40.0MiB (41.9MB), run=138128-138544msec 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=146196: Wed Aug 26 04:51:15 2026 read: IOPS=12, BW=50.5KiB/s (51.7kB/s)(5048KiB/99939msec) slat (usec): min=3255, max=75881, avg=13875.57, stdev=7222.30 clat (msec): min=15, max=748, avg=390.95, stdev=95.32 lat (msec): min=20, max=766, avg=404.84, stdev=96.08 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 262], 10.00th=[ 284], 20.00th=[ 317], | 30.00th=[ 342], 40.00th=[ 363], 50.00th=[ 384], 60.00th=[ 405], | 70.00th=[ 426], 80.00th=[ 464], 90.00th=[ 518], 95.00th=[ 558], | 99.00th=[ 651], 99.50th=[ 659], 99.90th=[ 726], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 7, max= 103, per=25.16%, avg=50.32, stdev=20.13, samples=197 iops : min= 1, max= 25, avg=12.10, stdev= 5.07, samples=197 write: IOPS=12, BW=51.0KiB/s (53.2kB/s)(5192KiB/99939msec); 0 zone resets slat (usec): min=32, max=14572, avg=329.66, stdev=1016.20 clat (msec): min=251, max=1433, avg=834.80, stdev=192.71 lat (msec): min=251, max=1434, avg=835.13, stdev=192.70 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 527], 10.00th=[ 592], 20.00th=[ 659], | 30.00th=[ 726], 40.00th=[ 776], 50.00th=[ 835], 60.00th=[ 885], | 70.00th=[ 936], 80.00th=[ 986], 90.00th=[ 1083], 95.00th=[ 1167], | 99.00th=[ 1318], 99.50th=[ 1368], 99.90th=[ 1418], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 7, max= 111, per=24.82%, avg=51.62, stdev=19.55, samples=197 iops : min= 1, max= 27, avg=12.42, stdev= 4.89, samples=197 lat (msec) : 20=0.04%, 50=0.20%, 100=0.27%, 250=1.29%, 500=43.05% lat (msec) : 750=22.30%, 1000=23.52%, 2000=9.34% cpu : usr=0.10%, sys=0.71%, ctx=4535, 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=146197: Wed Aug 26 04:51:15 2026 read: IOPS=12, BW=49.8KiB/s (50.0kB/s)(4976KiB/100004msec) slat (usec): min=39, max=74528, avg=13773.42, stdev=7182.73 clat (msec): min=16, max=727, avg=385.82, stdev=86.13 lat (msec): min=40, max=742, avg=399.60, stdev=87.11 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 264], 10.00th=[ 292], 20.00th=[ 313], | 30.00th=[ 338], 40.00th=[ 359], 50.00th=[ 380], 60.00th=[ 401], | 70.00th=[ 426], 80.00th=[ 451], 90.00th=[ 493], 95.00th=[ 542], | 99.00th=[ 625], 99.50th=[ 659], 99.90th=[ 676], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 7, max= 103, per=24.75%, avg=49.49, stdev=21.79, samples=197 iops : min= 1, max= 25, avg=11.89, stdev= 5.45, samples=197 write: IOPS=13, BW=52.6KiB/s (53.9kB/s)(5264KiB/100004msec); 0 zone resets slat (usec): min=30, max=16442, avg=298.76, stdev=823.16 clat (msec): min=143, max=1477, avg=836.93, stdev=206.77 lat (msec): min=143, max=1477, avg=837.24, stdev=206.73 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 506], 10.00th=[ 575], 20.00th=[ 667], | 30.00th=[ 735], 40.00th=[ 776], 50.00th=[ 827], 60.00th=[ 894], | 70.00th=[ 944], 80.00th=[ 995], 90.00th=[ 1099], 95.00th=[ 1200], | 99.00th=[ 1334], 99.50th=[ 1368], 99.90th=[ 1452], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 8, max= 104, per=25.11%, avg=52.24, stdev=18.80, samples=197 iops : min= 2, max= 26, avg=12.57, stdev= 4.72, samples=197 lat (msec) : 20=0.04%, 50=0.04%, 100=0.08%, 250=2.11%, 500=44.34% lat (msec) : 750=19.10%, 1000=24.26%, 2000=10.04% cpu : usr=0.14%, sys=0.66%, ctx=4333, 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=146198: Wed Aug 26 04:51:15 2026 read: IOPS=12, BW=49.9KiB/s (51.1kB/s)(4984KiB/99939msec) slat (usec): min=2733, max=47760, avg=13760.31, stdev=6967.39 clat (msec): min=23, max=675, avg=389.71, stdev=89.03 lat (msec): min=28, max=688, avg=403.48, stdev=90.14 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 264], 10.00th=[ 288], 20.00th=[ 321], | 30.00th=[ 342], 40.00th=[ 363], 50.00th=[ 384], 60.00th=[ 405], | 70.00th=[ 426], 80.00th=[ 464], 90.00th=[ 502], 95.00th=[ 550], | 99.00th=[ 634], 99.50th=[ 651], 99.90th=[ 667], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 7, max= 119, per=24.88%, avg=49.76, stdev=20.27, samples=197 iops : min= 1, max= 29, avg=11.95, stdev= 5.09, samples=197 write: IOPS=13, BW=52.6KiB/s (53.9kB/s)(5256KiB/99939msec); 0 zone resets slat (usec): min=38, max=10335, avg=300.31, stdev=794.34 clat (msec): min=131, max=1458, avg=831.60, stdev=204.20 lat (msec): min=132, max=1458, avg=831.90, stdev=204.22 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 506], 10.00th=[ 575], 20.00th=[ 659], | 30.00th=[ 726], 40.00th=[ 768], 50.00th=[ 818], 60.00th=[ 885], | 70.00th=[ 936], 80.00th=[ 1003], 90.00th=[ 1099], 95.00th=[ 1183], | 99.00th=[ 1318], 99.50th=[ 1368], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 7, max= 112, per=24.92%, avg=51.82, stdev=19.95, samples=198 iops : min= 1, max= 28, avg=12.47, stdev= 5.01, samples=198 lat (msec) : 50=0.12%, 100=0.20%, 250=1.52%, 500=43.98%, 750=21.64% lat (msec) : 1000=21.84%, 2000=10.70% cpu : usr=0.11%, sys=0.70%, ctx=4392, 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=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=146199: Wed Aug 26 04:51:15 2026 read: IOPS=12, BW=50.6KiB/s (51.8kB/s)(5060KiB/99991msec) slat (usec): min=2821, max=47788, avg=13513.61, stdev=6954.55 clat (msec): min=12, max=731, avg=389.17, stdev=91.18 lat (msec): min=16, max=744, avg=402.69, stdev=91.98 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 262], 10.00th=[ 284], 20.00th=[ 313], | 30.00th=[ 338], 40.00th=[ 359], 50.00th=[ 388], 60.00th=[ 409], | 70.00th=[ 435], 80.00th=[ 460], 90.00th=[ 510], 95.00th=[ 542], | 99.00th=[ 600], 99.50th=[ 625], 99.90th=[ 709], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 7, max= 135, per=25.26%, avg=50.51, stdev=21.85, samples=197 iops : min= 1, max= 33, avg=12.14, stdev= 5.49, samples=197 write: IOPS=12, BW=51.8KiB/s (53.0kB/s)(5180KiB/99991msec); 0 zone resets slat (usec): min=34, max=16926, avg=343.16, stdev=1099.86 clat (msec): min=139, max=1489, avg=839.14, stdev=201.37 lat (msec): min=143, max=1489, avg=839.48, stdev=201.35 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 518], 10.00th=[ 584], 20.00th=[ 667], | 30.00th=[ 735], 40.00th=[ 785], 50.00th=[ 835], 60.00th=[ 894], | 70.00th=[ 944], 80.00th=[ 995], 90.00th=[ 1099], 95.00th=[ 1183], | 99.00th=[ 1351], 99.50th=[ 1385], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 15, max= 104, per=24.54%, avg=51.05, stdev=19.47, samples=198 iops : min= 3, max= 26, avg=12.28, stdev= 4.88, samples=198 lat (msec) : 20=0.04%, 50=0.16%, 100=0.23%, 250=1.37%, 500=43.98% lat (msec) : 750=20.66%, 1000=23.55%, 2000=10.00% cpu : usr=0.11%, sys=0.70%, ctx=4475, 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=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=201KiB/s (205kB/s), 49.8KiB/s-50.6KiB/s (50.0kB/s-51.8kB/s), io=19.6MiB (20.5MB), run=99939-100004msec WRITE: bw=209KiB/s (214kB/s), 51.8KiB/s-52.6KiB/s (53.0kB/s-53.9kB/s), io=20.4MiB (21.4MB), run=99939-100004msec 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=146217: Wed Aug 26 04:51:26 2026 read: IOPS=2, BW=89.9MiB/s (94.3MB/s)(40.0MiB/445msec) slat (nsec): min=37800k, max=37800k, avg=37800330.00, stdev= 0.00 clat (nsec): min=384852k, max=384852k, avg=384851626.00, stdev= 0.00 lat (nsec): min=422656k, max=422656k, avg=422656334.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 384], 10.00th=[ 384], 20.00th=[ 384], | 30.00th=[ 384], 40.00th=[ 384], 50.00th=[ 384], 60.00th=[ 384], | 70.00th=[ 384], 80.00th=[ 384], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.93%, ctx=10, majf=0, minf=10 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=89.9MiB/s (94.3MB/s), 89.9MiB/s-89.9MiB/s (94.3MB/s-94.3MB/s), io=40.0MiB (41.9MB), run=445-445msec 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