== sanity test 398c: run fio to test AIO ================= 01:03:31 (1781240611) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.337009 s, 124 MB/s osc.lustre-OST0000-osc-ffff9af74570d800.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=146730: Fri Jun 12 01:06:35 2026 write: IOPS=14, BW=59.3KiB/s (60.7kB/s)(10.0MiB/172698msec); 0 zone resets slat (usec): min=49, max=13104, avg=263.86, stdev=747.34 clat (msec): min=395, max=2626, avg=1078.19, stdev=333.71 lat (msec): min=395, max=2626, avg=1078.46, stdev=333.72 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 592], 10.00th=[ 693], 20.00th=[ 810], | 30.00th=[ 902], 40.00th=[ 969], 50.00th=[ 1028], 60.00th=[ 1099], | 70.00th=[ 1200], 80.00th=[ 1318], 90.00th=[ 1519], 95.00th=[ 1720], | 99.00th=[ 2089], 99.50th=[ 2198], 99.90th=[ 2467], 99.95th=[ 2467], | 99.99th=[ 2635] bw ( KiB/s): min= 7, max= 128, per=25.17%, avg=59.65, stdev=31.58, samples=338 iops : min= 1, max= 32, avg=14.48, stdev= 7.91, samples=338 lat (msec) : 500=2.03%, 750=11.60%, 1000=30.62%, 2000=54.22%, >=2000=1.52% cpu : usr=0.04%, sys=0.23%, ctx=1847, 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=146731: Fri Jun 12 01:06:35 2026 write: IOPS=14, BW=59.4KiB/s (60.8kB/s)(10.0MiB/172458msec); 0 zone resets slat (usec): min=51, max=13112, avg=263.49, stdev=720.07 clat (msec): min=85, max=2584, avg=1077.03, stdev=337.29 lat (msec): min=85, max=2584, avg=1077.29, stdev=337.30 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 592], 10.00th=[ 709], 20.00th=[ 810], | 30.00th=[ 885], 40.00th=[ 961], 50.00th=[ 1028], 60.00th=[ 1099], | 70.00th=[ 1200], 80.00th=[ 1318], 90.00th=[ 1519], 95.00th=[ 1737], | 99.00th=[ 2072], 99.50th=[ 2165], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2601] bw ( KiB/s): min= 7, max= 136, per=25.08%, avg=59.45, stdev=27.64, samples=339 iops : min= 1, max= 34, avg=14.43, stdev= 6.93, samples=339 lat (msec) : 100=0.04%, 500=2.62%, 750=10.04%, 1000=33.63%, 2000=51.95% lat (msec) : >=2000=1.72% cpu : usr=0.04%, sys=0.24%, ctx=2031, 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=146732: Fri Jun 12 01:06:35 2026 write: IOPS=14, BW=59.4KiB/s (60.9kB/s)(10.0MiB/172306msec); 0 zone resets slat (usec): min=37, max=15067, avg=270.39, stdev=740.39 clat (msec): min=171, max=2571, avg=1076.32, stdev=337.14 lat (msec): min=172, max=2571, avg=1076.59, stdev=337.12 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 567], 10.00th=[ 709], 20.00th=[ 802], | 30.00th=[ 894], 40.00th=[ 969], 50.00th=[ 1028], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1318], 90.00th=[ 1536], 95.00th=[ 1703], | 99.00th=[ 2089], 99.50th=[ 2198], 99.90th=[ 2433], 99.95th=[ 2500], | 99.99th=[ 2567] bw ( KiB/s): min= 7, max= 152, per=25.16%, avg=59.63, stdev=28.81, samples=338 iops : min= 1, max= 38, avg=14.47, stdev= 7.21, samples=338 lat (msec) : 250=0.04%, 500=2.97%, 750=11.45%, 1000=31.17%, 2000=52.81% lat (msec) : >=2000=1.56% cpu : usr=0.04%, sys=0.26%, ctx=2341, 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=146733: Fri Jun 12 01:06:35 2026 write: IOPS=14, BW=59.3KiB/s (60.7kB/s)(10.0MiB/172697msec); 0 zone resets slat (usec): min=52, max=16293, avg=278.90, stdev=899.58 clat (msec): min=344, max=2628, avg=1077.98, stdev=338.30 lat (msec): min=344, max=2628, avg=1078.26, stdev=338.27 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 584], 10.00th=[ 709], 20.00th=[ 818], | 30.00th=[ 894], 40.00th=[ 961], 50.00th=[ 1020], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1334], 90.00th=[ 1536], 95.00th=[ 1703], | 99.00th=[ 2106], 99.50th=[ 2265], 99.90th=[ 2534], 99.95th=[ 2534], | 99.99th=[ 2635] bw ( KiB/s): min= 7, max= 143, per=25.24%, avg=59.82, stdev=32.24, samples=337 iops : min= 1, max= 35, avg=14.52, stdev= 8.06, samples=337 lat (msec) : 500=2.30%, 750=10.51%, 1000=32.97%, 2000=52.42%, >=2000=1.80% cpu : usr=0.04%, sys=0.23%, ctx=1911, 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=237KiB/s (243kB/s), 59.3KiB/s-59.4KiB/s (60.7kB/s-60.9kB/s), io=40.0MiB (41.9MB), run=172306-172698msec 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=146768: Fri Jun 12 01:08:30 2026 read: IOPS=11, BW=47.7KiB/s (48.8kB/s)(5048KiB/105872msec) slat (usec): min=88, max=44238, avg=13808.54, stdev=7563.70 clat (msec): min=6, max=1059, avg=417.86, stdev=107.20 lat (msec): min=21, max=1071, avg=431.67, stdev=107.79 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 271], 10.00th=[ 296], 20.00th=[ 342], | 30.00th=[ 372], 40.00th=[ 393], 50.00th=[ 414], 60.00th=[ 439], | 70.00th=[ 468], 80.00th=[ 498], 90.00th=[ 542], 95.00th=[ 584], | 99.00th=[ 667], 99.50th=[ 751], 99.90th=[ 1028], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 111, per=25.26%, avg=47.49, stdev=20.18, samples=209 iops : min= 1, max= 27, avg=11.44, stdev= 5.07, samples=209 write: IOPS=12, BW=49.0KiB/s (50.2kB/s)(5192KiB/105872msec); 0 zone resets slat (usec): min=54, max=30441, avg=316.37, stdev=1004.44 clat (msec): min=149, max=1698, avg=884.11, stdev=230.76 lat (msec): min=150, max=1699, avg=884.43, stdev=230.76 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 531], 10.00th=[ 584], 20.00th=[ 693], | 30.00th=[ 768], 40.00th=[ 818], 50.00th=[ 894], 60.00th=[ 953], | 70.00th=[ 1003], 80.00th=[ 1070], 90.00th=[ 1183], 95.00th=[ 1267], | 99.00th=[ 1418], 99.50th=[ 1519], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 8, max= 112, per=24.95%, avg=48.89, stdev=20.16, samples=208 iops : min= 2, max= 28, avg=11.79, stdev= 5.04, samples=208 lat (msec) : 10=0.04%, 20=0.04%, 50=0.27%, 100=0.20%, 250=1.37% lat (msec) : 500=40.08%, 750=21.02%, 1000=21.13%, 2000=15.86% cpu : usr=0.09%, sys=0.65%, ctx=4738, 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=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=146769: Fri Jun 12 01:08:30 2026 read: IOPS=11, BW=46.8KiB/s (47.9kB/s)(4976KiB/106375msec) slat (usec): min=2987, max=54128, avg=13805.10, stdev=7452.71 clat (msec): min=23, max=859, avg=419.51, stdev=94.42 lat (msec): min=39, max=881, avg=433.32, stdev=94.93 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 284], 10.00th=[ 309], 20.00th=[ 342], | 30.00th=[ 368], 40.00th=[ 393], 50.00th=[ 414], 60.00th=[ 443], | 70.00th=[ 468], 80.00th=[ 498], 90.00th=[ 535], 95.00th=[ 575], | 99.00th=[ 659], 99.50th=[ 718], 99.90th=[ 802], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7, max= 104, per=24.73%, avg=46.49, stdev=21.98, samples=210 iops : min= 1, max= 26, avg=11.19, stdev= 5.51, samples=210 write: IOPS=12, BW=49.5KiB/s (50.7kB/s)(5264KiB/106375msec); 0 zone resets slat (usec): min=55, max=26058, avg=359.89, stdev=1098.31 clat (msec): min=290, max=1513, avg=880.32, stdev=221.60 lat (msec): min=290, max=1513, avg=880.68, stdev=221.64 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 531], 10.00th=[ 592], 20.00th=[ 684], | 30.00th=[ 751], 40.00th=[ 810], 50.00th=[ 885], 60.00th=[ 944], | 70.00th=[ 1011], 80.00th=[ 1083], 90.00th=[ 1183], 95.00th=[ 1250], | 99.00th=[ 1368], 99.50th=[ 1418], 99.90th=[ 1485], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 7, max= 96, per=24.97%, avg=48.94, stdev=18.42, samples=211 iops : min= 1, max= 24, avg=11.80, stdev= 4.60, samples=211 lat (msec) : 50=0.08%, 100=0.12%, 250=0.98%, 500=39.73%, 750=23.28% lat (msec) : 1000=19.69%, 2000=16.13% cpu : usr=0.08%, sys=0.66%, ctx=4923, 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=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=146770: Fri Jun 12 01:08:30 2026 read: IOPS=11, BW=46.8KiB/s (47.9kB/s)(4984KiB/106511msec) slat (usec): min=2811, max=54805, avg=14155.25, stdev=7745.77 clat (msec): min=23, max=764, avg=420.93, stdev=91.88 lat (msec): min=37, max=779, avg=435.09, stdev=92.59 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 288], 10.00th=[ 309], 20.00th=[ 347], | 30.00th=[ 372], 40.00th=[ 397], 50.00th=[ 418], 60.00th=[ 443], | 70.00th=[ 468], 80.00th=[ 498], 90.00th=[ 542], 95.00th=[ 575], | 99.00th=[ 625], 99.50th=[ 651], 99.90th=[ 718], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 103, per=24.63%, avg=46.30, stdev=20.71, samples=212 iops : min= 1, max= 25, avg=11.14, stdev= 5.15, samples=212 write: IOPS=12, BW=49.3KiB/s (50.5kB/s)(5256KiB/106511msec); 0 zone resets slat (usec): min=57, max=15326, avg=328.05, stdev=877.62 clat (msec): min=199, max=1534, avg=880.92, stdev=226.89 lat (msec): min=200, max=1534, avg=881.25, stdev=226.88 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 523], 10.00th=[ 575], 20.00th=[ 676], | 30.00th=[ 751], 40.00th=[ 810], 50.00th=[ 885], 60.00th=[ 953], | 70.00th=[ 1011], 80.00th=[ 1083], 90.00th=[ 1167], 95.00th=[ 1250], | 99.00th=[ 1385], 99.50th=[ 1452], 99.90th=[ 1519], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 7, max= 104, per=24.76%, avg=48.52, stdev=19.02, samples=212 iops : min= 1, max= 26, avg=11.70, stdev= 4.78, samples=212 lat (msec) : 50=0.16%, 100=0.20%, 250=0.59%, 500=40.35%, 750=22.62% lat (msec) : 1000=19.69%, 2000=16.41% cpu : usr=0.09%, sys=0.68%, ctx=4708, majf=0, minf=13 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=146771: Fri Jun 12 01:08:30 2026 read: IOPS=11, BW=47.6KiB/s (48.8kB/s)(5060KiB/106250msec) slat (usec): min=2976, max=60541, avg=14101.00, stdev=8127.67 clat (msec): min=7, max=825, avg=419.45, stdev=94.70 lat (msec): min=24, max=844, avg=433.56, stdev=95.43 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 284], 10.00th=[ 305], 20.00th=[ 347], | 30.00th=[ 368], 40.00th=[ 393], 50.00th=[ 414], 60.00th=[ 439], | 70.00th=[ 468], 80.00th=[ 498], 90.00th=[ 550], 95.00th=[ 584], | 99.00th=[ 651], 99.50th=[ 676], 99.90th=[ 743], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 7, max= 111, per=25.31%, avg=47.58, stdev=21.48, samples=209 iops : min= 1, max= 27, avg=11.46, stdev= 5.38, samples=209 write: IOPS=12, BW=48.8KiB/s (49.9kB/s)(5180KiB/106250msec); 0 zone resets slat (usec): min=59, max=15407, avg=351.01, stdev=873.94 clat (msec): min=209, max=1568, avg=885.78, stdev=223.24 lat (msec): min=210, max=1568, avg=886.13, stdev=223.20 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 542], 10.00th=[ 600], 20.00th=[ 684], | 30.00th=[ 751], 40.00th=[ 810], 50.00th=[ 885], 60.00th=[ 961], | 70.00th=[ 1011], 80.00th=[ 1083], 90.00th=[ 1183], 95.00th=[ 1267], | 99.00th=[ 1401], 99.50th=[ 1418], 99.90th=[ 1536], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 7, max= 103, per=24.56%, avg=48.14, stdev=18.77, samples=211 iops : min= 1, max= 25, avg=11.60, stdev= 4.70, samples=211 lat (msec) : 10=0.04%, 50=0.04%, 100=0.08%, 250=0.98%, 500=40.62% lat (msec) : 750=22.54%, 1000=19.45%, 2000=16.25% cpu : usr=0.08%, sys=0.66%, ctx=5267, 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=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=188KiB/s (193kB/s), 46.8KiB/s-47.7KiB/s (47.9kB/s-48.8kB/s), io=19.6MiB (20.5MB), run=105872-106511msec WRITE: bw=196KiB/s (201kB/s), 48.8KiB/s-49.5KiB/s (49.9kB/s-50.7kB/s), io=20.4MiB (21.4MB), run=105872-106511msec 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=146793: Fri Jun 12 01:08:41 2026 read: IOPS=1, BW=64.2MiB/s (67.3MB/s)(40.0MiB/623msec) slat (nsec): min=52417k, max=52417k, avg=52417434.00, stdev= 0.00 clat (nsec): min=543514k, max=543514k, avg=543514297.00, stdev= 0.00 lat (nsec): min=595936k, max=595936k, avg=595936481.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.29%, ctx=13, 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=64.2MiB/s (67.3MB/s), 64.2MiB/s-64.2MiB/s (67.3MB/s-67.3MB/s), io=40.0MiB (41.9MB), run=623-623msec 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