== sanity test 398c: run fio to test AIO ================= 01:56:20 (1788933380) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.543862 s, 77.1 MB/s osc.lustre-OST0000-osc-ffff9fa4f8f78800.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=146146: Wed Sep 9 01:59:33 2026 write: IOPS=13, BW=55.0KiB/s (57.3kB/s)(10.0MiB/182891msec); 0 zone resets slat (usec): min=28, max=21670, avg=224.64, stdev=1058.58 clat (msec): min=207, max=3032, avg=1141.59, stdev=368.75 lat (msec): min=207, max=3034, avg=1141.82, stdev=368.74 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 625], 10.00th=[ 743], 20.00th=[ 860], | 30.00th=[ 953], 40.00th=[ 1028], 50.00th=[ 1116], 60.00th=[ 1200], | 70.00th=[ 1284], 80.00th=[ 1401], 90.00th=[ 1569], 95.00th=[ 1737], | 99.00th=[ 2366], 99.50th=[ 2534], 99.90th=[ 2970], 99.95th=[ 2970], | 99.99th=[ 3037] bw ( KiB/s): min= 7, max= 255, per=25.12%, avg=56.02, stdev=29.12, samples=359 iops : min= 1, max= 63, avg=13.52, stdev= 7.30, samples=359 lat (msec) : 250=0.62%, 500=2.11%, 750=7.77%, 1000=25.31%, 2000=61.68% lat (msec) : >=2000=2.50% cpu : usr=0.04%, sys=0.17%, ctx=1926, 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=146147: Wed Sep 9 01:59:33 2026 write: IOPS=14, BW=56.0KiB/s (57.3kB/s)(10.0MiB/182855msec); 0 zone resets slat (usec): min=26, max=17650, avg=218.02, stdev=1020.20 clat (msec): min=93, max=3023, avg=1141.59, stdev=373.46 lat (msec): min=93, max=3033, avg=1141.81, stdev=373.47 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 617], 10.00th=[ 735], 20.00th=[ 869], | 30.00th=[ 944], 40.00th=[ 1020], 50.00th=[ 1116], 60.00th=[ 1217], | 70.00th=[ 1301], 80.00th=[ 1418], 90.00th=[ 1552], 95.00th=[ 1720], | 99.00th=[ 2299], 99.50th=[ 2567], 99.90th=[ 3004], 99.95th=[ 3037], | 99.99th=[ 3037] bw ( KiB/s): min= 7, max= 239, per=25.62%, avg=57.12, stdev=31.01, samples=352 iops : min= 1, max= 59, avg=13.80, stdev= 7.78, samples=352 lat (msec) : 100=0.04%, 250=0.55%, 500=2.50%, 750=7.73%, 1000=26.17% lat (msec) : 2000=60.39%, >=2000=2.62% cpu : usr=0.03%, sys=0.16%, ctx=1665, 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=146148: Wed Sep 9 01:59:33 2026 write: IOPS=14, BW=56.2KiB/s (57.5kB/s)(10.0MiB/182366msec); 0 zone resets slat (usec): min=28, max=16040, avg=167.11, stdev=690.19 clat (msec): min=185, max=2953, avg=1139.11, stdev=377.62 lat (msec): min=185, max=2954, avg=1139.28, stdev=377.63 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 617], 10.00th=[ 726], 20.00th=[ 852], | 30.00th=[ 953], 40.00th=[ 1028], 50.00th=[ 1099], 60.00th=[ 1200], | 70.00th=[ 1301], 80.00th=[ 1401], 90.00th=[ 1552], 95.00th=[ 1737], | 99.00th=[ 2366], 99.50th=[ 2567], 99.90th=[ 2970], 99.95th=[ 2970], | 99.99th=[ 2970] bw ( KiB/s): min= 7, max= 255, per=25.60%, avg=57.10, stdev=32.52, samples=352 iops : min= 1, max= 63, avg=13.78, stdev= 8.13, samples=352 lat (msec) : 250=1.25%, 500=2.15%, 750=7.42%, 1000=25.12%, 2000=61.13% lat (msec) : >=2000=2.93% cpu : usr=0.04%, sys=0.17%, ctx=1502, 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=146149: Wed Sep 9 01:59:33 2026 write: IOPS=13, BW=55.0KiB/s (57.3kB/s)(10.0MiB/182895msec); 0 zone resets slat (usec): min=30, max=24393, avg=188.85, stdev=839.57 clat (msec): min=202, max=3020, avg=1141.55, stdev=370.48 lat (msec): min=203, max=3020, avg=1141.74, stdev=370.48 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 617], 10.00th=[ 735], 20.00th=[ 852], | 30.00th=[ 944], 40.00th=[ 1028], 50.00th=[ 1116], 60.00th=[ 1200], | 70.00th=[ 1301], 80.00th=[ 1401], 90.00th=[ 1569], 95.00th=[ 1754], | 99.00th=[ 2299], 99.50th=[ 2702], 99.90th=[ 2970], 99.95th=[ 3037], | 99.99th=[ 3037] bw ( KiB/s): min= 7, max= 255, per=25.12%, avg=56.02, stdev=27.31, samples=359 iops : min= 1, max= 63, avg=13.52, stdev= 6.83, samples=359 lat (msec) : 250=0.62%, 500=2.70%, 750=7.70%, 1000=25.59%, 2000=61.45% lat (msec) : >=2000=1.95% cpu : usr=0.04%, sys=0.18%, ctx=1912, 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=224KiB/s (229kB/s), 55.0KiB/s-56.2KiB/s (57.3kB/s-57.5kB/s), io=40.0MiB (41.9MB), run=182366-182895msec 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=146185: Wed Sep 9 02:01:27 2026 read: IOPS=12, BW=48.1KiB/s (49.3kB/s)(5048KiB/104933msec) slat (usec): min=2729, max=45985, avg=13268.07, stdev=7115.47 clat (msec): min=23, max=837, avg=411.23, stdev=101.67 lat (msec): min=30, max=868, avg=424.50, stdev=102.77 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 262], 10.00th=[ 296], 20.00th=[ 334], | 30.00th=[ 359], 40.00th=[ 380], 50.00th=[ 401], 60.00th=[ 426], | 70.00th=[ 456], 80.00th=[ 493], 90.00th=[ 542], 95.00th=[ 584], | 99.00th=[ 709], 99.50th=[ 768], 99.90th=[ 818], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 7, max= 133, per=25.00%, avg=47.75, stdev=22.19, samples=207 iops : min= 1, max= 33, avg=11.45, stdev= 5.56, samples=207 write: IOPS=12, BW=49.5KiB/s (50.7kB/s)(5192KiB/104933msec); 0 zone resets slat (usec): min=29, max=12673, avg=212.65, stdev=708.18 clat (msec): min=286, max=1867, avg=878.03, stdev=248.01 lat (msec): min=286, max=1867, avg=878.25, stdev=248.02 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 506], 10.00th=[ 567], 20.00th=[ 667], | 30.00th=[ 743], 40.00th=[ 810], 50.00th=[ 869], 60.00th=[ 936], | 70.00th=[ 986], 80.00th=[ 1070], 90.00th=[ 1167], 95.00th=[ 1318], | 99.00th=[ 1603], 99.50th=[ 1653], 99.90th=[ 1821], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 125, per=24.69%, avg=48.88, stdev=19.39, samples=208 iops : min= 1, max= 31, avg=11.73, stdev= 4.90, samples=208 lat (msec) : 50=0.16%, 100=0.08%, 250=1.29%, 500=41.56%, 750=22.03% lat (msec) : 1000=20.43%, 2000=14.45% cpu : usr=0.08%, sys=0.55%, ctx=4632, 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=146186: Wed Sep 9 02:01:27 2026 read: IOPS=11, BW=47.6KiB/s (48.7kB/s)(4976KiB/104619msec) slat (usec): min=53, max=57641, avg=13266.77, stdev=7339.38 clat (msec): min=12, max=884, avg=408.13, stdev=102.97 lat (msec): min=16, max=903, avg=421.41, stdev=104.29 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 264], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 355], 40.00th=[ 376], 50.00th=[ 401], 60.00th=[ 426], | 70.00th=[ 451], 80.00th=[ 489], 90.00th=[ 542], 95.00th=[ 575], | 99.00th=[ 693], 99.50th=[ 743], 99.90th=[ 869], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 111, per=24.64%, avg=47.07, stdev=20.78, samples=207 iops : min= 1, max= 27, avg=11.28, stdev= 5.20, samples=207 write: IOPS=12, BW=50.3KiB/s (51.5kB/s)(5264KiB/104619msec); 0 zone resets slat (usec): min=30, max=8522, avg=231.08, stdev=630.57 clat (msec): min=138, max=1800, avg=872.41, stdev=244.87 lat (msec): min=140, max=1800, avg=872.65, stdev=244.83 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 485], 10.00th=[ 575], 20.00th=[ 676], | 30.00th=[ 751], 40.00th=[ 802], 50.00th=[ 860], 60.00th=[ 919], | 70.00th=[ 986], 80.00th=[ 1062], 90.00th=[ 1167], 95.00th=[ 1284], | 99.00th=[ 1620], 99.50th=[ 1670], 99.90th=[ 1787], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 7, max= 112, per=25.26%, avg=50.01, stdev=19.00, samples=206 iops : min= 1, max= 28, avg=12.01, stdev= 4.80, samples=206 lat (msec) : 20=0.12%, 50=0.08%, 100=0.16%, 250=1.45%, 500=41.05% lat (msec) : 750=21.33%, 1000=21.91%, 2000=13.91% cpu : usr=0.10%, sys=0.57%, ctx=4959, 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=146187: Wed Sep 9 02:01:27 2026 read: IOPS=11, BW=47.5KiB/s (48.6kB/s)(4984KiB/104992msec) slat (usec): min=2834, max=49141, avg=13240.68, stdev=7170.27 clat (msec): min=13, max=853, avg=407.86, stdev=102.93 lat (msec): min=20, max=865, avg=421.11, stdev=104.24 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 264], 10.00th=[ 300], 20.00th=[ 330], | 30.00th=[ 355], 40.00th=[ 376], 50.00th=[ 401], 60.00th=[ 422], | 70.00th=[ 451], 80.00th=[ 489], 90.00th=[ 542], 95.00th=[ 584], | 99.00th=[ 701], 99.50th=[ 751], 99.90th=[ 810], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 136, per=24.63%, avg=47.04, stdev=23.61, samples=208 iops : min= 1, max= 34, avg=11.27, stdev= 5.94, samples=208 write: IOPS=12, BW=50.1KiB/s (51.3kB/s)(5256KiB/104992msec); 0 zone resets slat (usec): min=33, max=34526, avg=246.33, stdev=1215.95 clat (msec): min=314, max=1742, avg=876.79, stdev=245.33 lat (msec): min=314, max=1742, avg=877.04, stdev=245.36 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 506], 10.00th=[ 575], 20.00th=[ 667], | 30.00th=[ 735], 40.00th=[ 793], 50.00th=[ 860], 60.00th=[ 927], | 70.00th=[ 986], 80.00th=[ 1070], 90.00th=[ 1200], 95.00th=[ 1284], | 99.00th=[ 1569], 99.50th=[ 1620], 99.90th=[ 1737], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 7, max= 103, per=24.88%, avg=49.26, stdev=20.48, samples=208 iops : min= 1, max= 25, avg=11.82, stdev= 5.16, samples=208 lat (msec) : 20=0.04%, 50=0.08%, 100=0.35%, 250=1.21%, 500=40.98% lat (msec) : 750=22.03%, 1000=20.90%, 2000=14.41% cpu : usr=0.07%, sys=0.60%, ctx=4828, 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=146188: Wed Sep 9 02:01:27 2026 read: IOPS=12, BW=48.3KiB/s (49.5kB/s)(5060KiB/104735msec) slat (usec): min=2951, max=79713, avg=13311.51, stdev=7592.03 clat (msec): min=22, max=882, avg=413.55, stdev=101.86 lat (msec): min=29, max=898, avg=426.87, stdev=103.37 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 266], 10.00th=[ 305], 20.00th=[ 334], | 30.00th=[ 363], 40.00th=[ 380], 50.00th=[ 405], 60.00th=[ 426], | 70.00th=[ 456], 80.00th=[ 493], 90.00th=[ 542], 95.00th=[ 584], | 99.00th=[ 718], 99.50th=[ 776], 99.90th=[ 835], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 112, per=25.09%, avg=47.92, stdev=21.20, samples=207 iops : min= 1, max= 28, avg=11.49, stdev= 5.33, samples=207 write: IOPS=12, BW=49.5KiB/s (50.6kB/s)(5180KiB/104735msec); 0 zone resets slat (usec): min=34, max=10330, avg=217.56, stdev=642.65 clat (msec): min=319, max=1773, avg=874.50, stdev=244.73 lat (msec): min=319, max=1783, avg=874.72, stdev=244.77 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 481], 10.00th=[ 567], 20.00th=[ 667], | 30.00th=[ 743], 40.00th=[ 802], 50.00th=[ 869], 60.00th=[ 927], | 70.00th=[ 986], 80.00th=[ 1062], 90.00th=[ 1183], 95.00th=[ 1318], | 99.00th=[ 1603], 99.50th=[ 1653], 99.90th=[ 1737], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 104, per=24.60%, avg=48.72, stdev=19.01, samples=208 iops : min= 1, max= 26, avg=11.69, stdev= 4.77, samples=208 lat (msec) : 50=0.08%, 100=0.27%, 250=1.52%, 500=42.03%, 750=20.98% lat (msec) : 1000=21.25%, 2000=13.87% cpu : usr=0.08%, sys=0.59%, ctx=4846, 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=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=191KiB/s (196kB/s), 47.5KiB/s-48.3KiB/s (48.6kB/s-49.5kB/s), io=19.6MiB (20.5MB), run=104619-104992msec WRITE: bw=199KiB/s (204kB/s), 49.5KiB/s-50.3KiB/s (50.6kB/s-51.5kB/s), io=20.4MiB (21.4MB), run=104619-104992msec 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=146218: Wed Sep 9 02:01:37 2026 read: IOPS=2, BW=90.7MiB/s (95.1MB/s)(40.0MiB/441msec) slat (nsec): min=45228k, max=45228k, avg=45228006.00, stdev= 0.00 clat (nsec): min=364027k, max=364027k, avg=364027077.00, stdev= 0.00 lat (nsec): min=409259k, max=409259k, avg=409259413.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 363], 50.00th=[ 363], 60.00th=[ 363], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.73%, ctx=5, majf=0, minf=8 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=90.7MiB/s (95.1MB/s), 90.7MiB/s-90.7MiB/s (95.1MB/s-95.1MB/s), io=40.0MiB (41.9MB), run=441-441msec 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