== sanity test 398c: run fio to test AIO ================= 07:22:39 (1789384959) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.643447 s, 65.2 MB/s osc.lustre-OST0000-osc-ffff8b6805773000.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=178994: Mon Sep 14 07:23:21 2026 write: IOPS=86, BW=347KiB/s (355kB/s)(10.0MiB/29502msec); 0 zone resets slat (usec): min=26, max=50143, avg=268.56, stdev=1458.43 clat (msec): min=18, max=308, avg=183.86, stdev=42.41 lat (msec): min=19, max=308, avg=184.13, stdev=42.42 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 123], 10.00th=[ 132], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 243], 95.00th=[ 255], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 253, max= 517, per=24.98%, avg=345.72, stdev=70.90, samples=58 iops : min= 63, max= 129, avg=85.95, stdev=17.75, samples=58 lat (msec) : 20=0.04%, 50=0.12%, 250=93.16%, 500=6.68% cpu : usr=0.17%, sys=0.94%, ctx=2302, 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=178995: Mon Sep 14 07:23:21 2026 write: IOPS=86, BW=346KiB/s (355kB/s)(10.0MiB/29578msec); 0 zone resets slat (usec): min=28, max=16023, avg=218.66, stdev=869.07 clat (msec): min=46, max=328, avg=183.62, stdev=42.10 lat (msec): min=46, max=328, avg=183.84, stdev=42.08 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 122], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 220], 90.00th=[ 239], 95.00th=[ 255], | 99.00th=[ 288], 99.50th=[ 296], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 229, max= 509, per=24.95%, avg=345.24, stdev=73.14, samples=58 iops : min= 57, max= 127, avg=85.83, stdev=18.30, samples=58 lat (msec) : 50=0.04%, 100=0.31%, 250=92.97%, 500=6.68% cpu : usr=0.14%, sys=0.94%, ctx=2590, 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=178996: Mon Sep 14 07:23:21 2026 write: IOPS=86, BW=346KiB/s (355kB/s)(10.0MiB/29562msec); 0 zone resets slat (usec): min=28, max=41086, avg=231.23, stdev=1189.50 clat (msec): min=18, max=307, avg=183.22, stdev=42.18 lat (msec): min=18, max=307, avg=183.45, stdev=42.23 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 120], 10.00th=[ 132], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 239], 95.00th=[ 257], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 309] bw ( KiB/s): min= 113, max= 510, per=24.87%, avg=344.22, stdev=77.63, samples=58 iops : min= 28, max= 127, avg=85.60, stdev=19.44, samples=58 lat (msec) : 20=0.04%, 50=0.31%, 100=0.27%, 250=93.12%, 500=6.25% cpu : usr=0.19%, sys=0.87%, ctx=2156, 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=178997: Mon Sep 14 07:23:21 2026 write: IOPS=86, BW=347KiB/s (355kB/s)(10.0MiB/29521msec); 0 zone resets slat (usec): min=27, max=27630, avg=327.73, stdev=1329.86 clat (msec): min=36, max=320, avg=183.39, stdev=42.52 lat (msec): min=36, max=321, avg=183.72, stdev=42.51 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 118], 10.00th=[ 131], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 239], 95.00th=[ 257], | 99.00th=[ 288], 99.50th=[ 292], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 321] bw ( KiB/s): min= 236, max= 509, per=24.98%, avg=345.78, stdev=73.28, samples=58 iops : min= 59, max= 127, avg=86.00, stdev=18.34, samples=58 lat (msec) : 50=0.20%, 100=0.55%, 250=92.54%, 500=6.72% cpu : usr=0.29%, sys=1.10%, ctx=3092, 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=1385KiB/s (1418kB/s), 346KiB/s-347KiB/s (355kB/s-355kB/s), io=40.0MiB (41.9MB), run=29502-29578msec 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=179011: Mon Sep 14 07:24:04 2026 read: IOPS=38, BW=156KiB/s (160kB/s)(5048KiB/32365msec) slat (usec): min=2547, max=73486, avg=14418.78, stdev=7908.94 clat (msec): min=87, max=326, avg=191.32, stdev=42.52 lat (msec): min=98, max=342, avg=205.75, stdev=43.95 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 131], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 226], 90.00th=[ 253], 95.00th=[ 271], | 99.00th=[ 305], 99.50th=[ 309], 99.90th=[ 317], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 55, max= 239, per=25.08%, avg=154.98, stdev=31.11, samples=64 iops : min= 13, max= 59, avg=38.30, stdev= 7.79, samples=64 write: IOPS=40, BW=160KiB/s (164kB/s)(5192KiB/32365msec); 0 zone resets slat (usec): min=29, max=17266, avg=308.20, stdev=1192.58 clat (msec): min=32, max=348, avg=195.60, stdev=39.99 lat (msec): min=33, max=348, avg=195.91, stdev=40.05 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 140], 10.00th=[ 150], 20.00th=[ 163], | 30.00th=[ 174], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 213], 80.00th=[ 226], 90.00th=[ 249], 95.00th=[ 268], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 347], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 47, max= 248, per=24.82%, avg=159.83, stdev=39.32, samples=64 iops : min= 11, max= 62, avg=39.48, stdev= 9.91, samples=64 lat (msec) : 50=0.04%, 100=0.31%, 250=89.69%, 500=9.96% cpu : usr=0.30%, sys=1.88%, ctx=4257, 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=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=179012: Mon Sep 14 07:24:04 2026 read: IOPS=38, BW=154KiB/s (158kB/s)(4976KiB/32297msec) slat (usec): min=2669, max=60218, avg=14454.07, stdev=8011.28 clat (msec): min=76, max=399, avg=191.51, stdev=44.38 lat (msec): min=101, max=412, avg=205.97, stdev=46.03 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 132], 10.00th=[ 142], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 317], 99.50th=[ 342], 99.90th=[ 376], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 47, max= 227, per=24.76%, avg=153.00, stdev=36.58, samples=64 iops : min= 11, max= 56, avg=37.77, stdev= 9.16, samples=64 write: IOPS=40, BW=163KiB/s (167kB/s)(5264KiB/32297msec); 0 zone resets slat (usec): min=32, max=15320, avg=251.59, stdev=811.95 clat (msec): min=56, max=366, avg=195.18, stdev=40.06 lat (msec): min=57, max=366, avg=195.43, stdev=40.06 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 138], 10.00th=[ 148], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 228], 90.00th=[ 249], 95.00th=[ 266], | 99.00th=[ 300], 99.50th=[ 309], 99.90th=[ 321], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 78, max= 261, per=25.25%, avg=162.58, stdev=37.41, samples=64 iops : min= 19, max= 65, avg=40.19, stdev= 9.44, samples=64 lat (msec) : 100=0.39%, 250=89.45%, 500=10.16% cpu : usr=0.29%, sys=1.92%, ctx=4652, 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=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=179013: Mon Sep 14 07:24:04 2026 read: IOPS=38, BW=154KiB/s (158kB/s)(4984KiB/32326msec) slat (usec): min=52, max=203157, avg=14919.23, stdev=10806.56 clat (msec): min=25, max=572, avg=191.87, stdev=50.47 lat (msec): min=34, max=587, avg=206.79, stdev=52.65 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 128], 10.00th=[ 138], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 226], 90.00th=[ 249], 95.00th=[ 262], | 99.00th=[ 334], 99.50th=[ 506], 99.90th=[ 567], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 84, max= 240, per=24.83%, avg=153.44, stdev=35.57, samples=64 iops : min= 21, max= 60, avg=37.94, stdev= 8.92, samples=64 write: IOPS=40, BW=163KiB/s (166kB/s)(5256KiB/32326msec); 0 zone resets slat (usec): min=31, max=18062, avg=325.03, stdev=1173.39 clat (msec): min=34, max=595, avg=196.63, stdev=47.25 lat (msec): min=35, max=595, avg=196.96, stdev=47.22 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 142], 10.00th=[ 150], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 213], 80.00th=[ 228], 90.00th=[ 249], 95.00th=[ 271], | 99.00th=[ 334], 99.50th=[ 493], 99.90th=[ 550], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 71, max= 239, per=25.09%, avg=161.59, stdev=37.77, samples=64 iops : min= 17, max= 59, avg=39.95, stdev= 9.45, samples=64 lat (msec) : 50=0.27%, 100=0.43%, 250=90.16%, 500=8.67%, 750=0.47% cpu : usr=0.30%, sys=1.92%, ctx=4206, 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=179014: Mon Sep 14 07:24:04 2026 read: IOPS=39, BW=156KiB/s (160kB/s)(5060KiB/32435msec) slat (msec): min=2, max=162, avg=14.91, stdev= 9.07 clat (msec): min=20, max=376, avg=190.98, stdev=45.04 lat (msec): min=28, max=395, avg=205.90, stdev=46.45 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 129], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 224], 90.00th=[ 251], 95.00th=[ 271], | 99.00th=[ 309], 99.50th=[ 321], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 39, max= 238, per=24.95%, avg=154.20, stdev=36.21, samples=64 iops : min= 9, max= 59, avg=38.09, stdev= 9.10, samples=64 write: IOPS=39, BW=160KiB/s (164kB/s)(5180KiB/32435msec); 0 zone resets slat (usec): min=35, max=15117, avg=262.62, stdev=844.32 clat (msec): min=35, max=358, avg=196.40, stdev=42.78 lat (msec): min=35, max=360, avg=196.66, stdev=42.76 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 138], 10.00th=[ 148], 20.00th=[ 163], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 317], 99.50th=[ 326], 99.90th=[ 351], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 70, max= 232, per=24.49%, avg=157.73, stdev=36.45, samples=64 iops : min= 17, max= 58, avg=38.95, stdev= 9.17, samples=64 lat (msec) : 50=0.47%, 100=0.43%, 250=88.63%, 500=10.47% cpu : usr=0.33%, sys=2.07%, ctx=4402, 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=619KiB/s (634kB/s), 154KiB/s-156KiB/s (158kB/s-160kB/s), io=19.6MiB (20.5MB), run=32297-32435msec WRITE: bw=644KiB/s (660kB/s), 160KiB/s-163KiB/s (164kB/s-167kB/s), io=20.4MiB (21.4MB), run=32297-32435msec 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=179023: Mon Sep 14 07:24:15 2026 read: IOPS=1, BW=63.8MiB/s (66.9MB/s)(40.0MiB/627msec) slat (nsec): min=75106k, max=75106k, avg=75106216.00, stdev= 0.00 clat (nsec): min=481529k, max=481529k, avg=481529057.00, stdev= 0.00 lat (nsec): min=556640k, max=556640k, avg=556639811.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 481], 10.00th=[ 481], 20.00th=[ 481], | 30.00th=[ 481], 40.00th=[ 481], 50.00th=[ 481], 60.00th=[ 481], | 70.00th=[ 481], 80.00th=[ 481], 90.00th=[ 481], 95.00th=[ 481], | 99.00th=[ 481], 99.50th=[ 481], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] lat (msec) : 500=100.00% cpu : usr=1.12%, sys=3.99%, ctx=16, 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=63.8MiB/s (66.9MB/s), 63.8MiB/s-63.8MiB/s (66.9MB/s-66.9MB/s), io=40.0MiB (41.9MB), run=627-627msec 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