== sanity test 398c: run fio to test AIO ================= 12:59:48 (1772474388) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.295595 s, 142 MB/s osc.lustre-OST0000-osc-ffffa03373265800.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=148320: Mon Mar 2 13:01:39 2026 write: IOPS=24, BW=97.7KiB/s (100kB/s)(10.0MiB/104855msec); 0 zone resets slat (usec): min=36, max=14502, avg=299.94, stdev=762.34 clat (msec): min=177, max=1129, avg=654.36, stdev=143.04 lat (msec): min=179, max=1129, avg=654.66, stdev=143.04 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 430], 10.00th=[ 498], 20.00th=[ 558], | 30.00th=[ 584], 40.00th=[ 617], 50.00th=[ 651], 60.00th=[ 684], | 70.00th=[ 718], 80.00th=[ 760], 90.00th=[ 827], 95.00th=[ 911], | 99.00th=[ 1020], 99.50th=[ 1062], 99.90th=[ 1116], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 248, per=24.84%, avg=96.88, stdev=30.72, samples=208 iops : min= 1, max= 62, avg=23.86, stdev= 7.69, samples=208 lat (msec) : 250=1.91%, 500=8.55%, 750=68.32%, 1000=19.65%, 2000=1.56% cpu : usr=0.06%, sys=0.36%, ctx=2980, 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=148321: Mon Mar 2 13:01:39 2026 write: IOPS=24, BW=97.9KiB/s (100kB/s)(10.0MiB/104619msec); 0 zone resets slat (usec): min=36, max=13279, avg=261.62, stdev=638.21 clat (msec): min=104, max=1126, avg=653.31, stdev=146.78 lat (msec): min=105, max=1126, avg=653.58, stdev=146.81 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 439], 10.00th=[ 498], 20.00th=[ 550], | 30.00th=[ 592], 40.00th=[ 625], 50.00th=[ 651], 60.00th=[ 684], | 70.00th=[ 726], 80.00th=[ 760], 90.00th=[ 827], 95.00th=[ 885], | 99.00th=[ 1028], 99.50th=[ 1053], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1133] bw ( KiB/s): min= 23, max= 311, per=25.11%, avg=97.92, stdev=32.23, samples=206 iops : min= 5, max= 77, avg=24.11, stdev= 8.07, samples=206 lat (msec) : 250=1.29%, 500=9.06%, 750=68.05%, 1000=20.16%, 2000=1.45% cpu : usr=0.07%, sys=0.37%, ctx=2689, 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=148322: Mon Mar 2 13:01:39 2026 write: IOPS=24, BW=97.9KiB/s (100kB/s)(10.0MiB/104617msec); 0 zone resets slat (usec): min=35, max=14946, avg=259.78, stdev=635.54 clat (msec): min=140, max=1138, avg=653.24, stdev=144.64 lat (msec): min=140, max=1138, avg=653.50, stdev=144.68 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 430], 10.00th=[ 502], 20.00th=[ 550], | 30.00th=[ 592], 40.00th=[ 625], 50.00th=[ 659], 60.00th=[ 684], | 70.00th=[ 718], 80.00th=[ 760], 90.00th=[ 827], 95.00th=[ 877], | 99.00th=[ 1011], 99.50th=[ 1036], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 256, per=24.90%, avg=97.10, stdev=34.78, samples=208 iops : min= 1, max= 64, avg=23.91, stdev= 8.70, samples=208 lat (msec) : 250=1.33%, 500=8.20%, 750=68.32%, 1000=20.90%, 2000=1.25% cpu : usr=0.05%, sys=0.40%, ctx=2511, 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=148323: Mon Mar 2 13:01:39 2026 write: IOPS=24, BW=97.8KiB/s (100kB/s)(10.0MiB/104752msec); 0 zone resets slat (usec): min=38, max=11200, avg=273.99, stdev=607.85 clat (msec): min=125, max=1120, avg=653.79, stdev=142.08 lat (msec): min=126, max=1120, avg=654.06, stdev=142.08 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 426], 10.00th=[ 502], 20.00th=[ 558], | 30.00th=[ 592], 40.00th=[ 625], 50.00th=[ 651], 60.00th=[ 684], | 70.00th=[ 718], 80.00th=[ 760], 90.00th=[ 818], 95.00th=[ 885], | 99.00th=[ 1028], 99.50th=[ 1053], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 23, max= 255, per=25.01%, avg=97.54, stdev=29.86, samples=207 iops : min= 5, max= 63, avg=24.02, stdev= 7.48, samples=207 lat (msec) : 250=1.64%, 500=8.36%, 750=68.20%, 1000=20.35%, 2000=1.45% cpu : usr=0.06%, sys=0.40%, ctx=3291, 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 Run status group 0 (all jobs): WRITE: bw=391KiB/s (400kB/s), 97.7KiB/s-97.9KiB/s (100kB/s-100kB/s), io=40.0MiB (41.9MB), run=104617-104855msec 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=148360: Mon Mar 2 13:02:49 2026 read: IOPS=19, BW=78.3KiB/s (80.2kB/s)(5048KiB/64457msec) slat (usec): min=2158, max=35528, avg=8615.56, stdev=4337.65 clat (msec): min=19, max=475, avg=246.60, stdev=56.94 lat (msec): min=22, max=484, avg=255.22, stdev=57.64 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 165], 10.00th=[ 180], 20.00th=[ 203], | 30.00th=[ 220], 40.00th=[ 232], 50.00th=[ 245], 60.00th=[ 259], | 70.00th=[ 271], 80.00th=[ 288], 90.00th=[ 321], 95.00th=[ 342], | 99.00th=[ 393], 99.50th=[ 405], 99.90th=[ 451], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 23, max= 160, per=25.08%, avg=78.00, stdev=29.19, samples=128 iops : min= 5, max= 40, avg=19.15, stdev= 7.30, samples=128 write: IOPS=20, BW=80.5KiB/s (82.5kB/s)(5192KiB/64457msec); 0 zone resets slat (usec): min=43, max=12296, avg=309.65, stdev=714.35 clat (msec): min=159, max=1112, avg=544.27, stdev=134.10 lat (msec): min=159, max=1112, avg=544.58, stdev=134.09 clat percentiles (msec): | 1.00th=[ 266], 5.00th=[ 342], 10.00th=[ 384], 20.00th=[ 435], | 30.00th=[ 468], 40.00th=[ 502], 50.00th=[ 535], 60.00th=[ 567], | 70.00th=[ 609], 80.00th=[ 651], 90.00th=[ 718], 95.00th=[ 768], | 99.00th=[ 927], 99.50th=[ 986], 99.90th=[ 1099], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 31, max= 168, per=24.71%, avg=79.82, stdev=23.06, samples=128 iops : min= 7, max= 42, avg=19.60, stdev= 5.77, samples=128 lat (msec) : 20=0.04%, 50=0.31%, 100=0.16%, 250=26.45%, 500=42.42% lat (msec) : 750=27.07%, 1000=3.36%, 2000=0.20% cpu : usr=0.11%, sys=1.00%, ctx=5124, 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=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=148361: Mon Mar 2 13:02:49 2026 read: IOPS=19, BW=77.2KiB/s (79.0kB/s)(4976KiB/64488msec) slat (usec): min=1998, max=37093, avg=8729.73, stdev=4422.22 clat (msec): min=11, max=475, avg=244.83, stdev=58.34 lat (msec): min=25, max=480, avg=253.57, stdev=58.89 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 163], 10.00th=[ 178], 20.00th=[ 199], | 30.00th=[ 218], 40.00th=[ 232], 50.00th=[ 245], 60.00th=[ 257], | 70.00th=[ 271], 80.00th=[ 292], 90.00th=[ 317], 95.00th=[ 342], | 99.00th=[ 388], 99.50th=[ 397], 99.90th=[ 468], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 8, max= 151, per=24.67%, avg=76.71, stdev=31.65, samples=128 iops : min= 2, max= 37, avg=18.82, stdev= 7.95, samples=128 write: IOPS=20, BW=81.6KiB/s (83.6kB/s)(5264KiB/64488msec); 0 zone resets slat (usec): min=43, max=7773, avg=301.38, stdev=563.72 clat (msec): min=161, max=1114, avg=542.62, stdev=135.24 lat (msec): min=161, max=1114, avg=542.92, stdev=135.24 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 334], 10.00th=[ 384], 20.00th=[ 435], | 30.00th=[ 472], 40.00th=[ 498], 50.00th=[ 527], 60.00th=[ 567], | 70.00th=[ 609], 80.00th=[ 659], 90.00th=[ 709], 95.00th=[ 776], | 99.00th=[ 911], 99.50th=[ 1003], 99.90th=[ 1099], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 31, max= 140, per=25.02%, avg=80.83, stdev=21.93, samples=128 iops : min= 7, max= 35, avg=19.85, stdev= 5.50, samples=128 lat (msec) : 20=0.08%, 50=0.43%, 100=0.23%, 250=26.29%, 500=42.46% lat (msec) : 750=27.19%, 1000=3.05%, 2000=0.27% cpu : usr=0.10%, sys=0.96%, ctx=5062, 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=148362: Mon Mar 2 13:02:49 2026 read: IOPS=19, BW=77.4KiB/s (79.2kB/s)(4984KiB/64417msec) slat (usec): min=81, max=36495, avg=8738.18, stdev=4638.77 clat (msec): min=5, max=517, avg=249.75, stdev=59.89 lat (msec): min=11, max=530, avg=258.50, stdev=60.63 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 167], 10.00th=[ 182], 20.00th=[ 205], | 30.00th=[ 218], 40.00th=[ 232], 50.00th=[ 247], 60.00th=[ 262], | 70.00th=[ 279], 80.00th=[ 292], 90.00th=[ 326], 95.00th=[ 351], | 99.00th=[ 409], 99.50th=[ 435], 99.90th=[ 498], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 24, max= 151, per=24.81%, avg=77.16, stdev=27.95, samples=128 iops : min= 6, max= 37, avg=18.94, stdev= 7.02, samples=128 write: IOPS=20, BW=81.6KiB/s (83.6kB/s)(5256KiB/64417msec); 0 zone resets slat (usec): min=44, max=8485, avg=320.67, stdev=624.58 clat (msec): min=126, max=1139, avg=538.34, stdev=132.71 lat (msec): min=126, max=1139, avg=538.67, stdev=132.74 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 338], 10.00th=[ 388], 20.00th=[ 435], | 30.00th=[ 468], 40.00th=[ 493], 50.00th=[ 531], 60.00th=[ 567], | 70.00th=[ 600], 80.00th=[ 642], 90.00th=[ 709], 95.00th=[ 768], | 99.00th=[ 869], 99.50th=[ 961], 99.90th=[ 1116], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 15, max= 152, per=24.93%, avg=80.53, stdev=25.41, samples=128 iops : min= 3, max= 38, avg=19.78, stdev= 6.31, samples=128 lat (msec) : 10=0.08%, 20=0.16%, 50=0.12%, 100=0.16%, 250=25.62% lat (msec) : 500=43.91%, 750=27.11%, 1000=2.70%, 2000=0.16% cpu : usr=0.11%, sys=1.00%, ctx=5236, 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=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=148363: Mon Mar 2 13:02:49 2026 read: IOPS=19, BW=78.5KiB/s (80.4kB/s)(5060KiB/64418msec) slat (usec): min=1952, max=38404, avg=8540.17, stdev=4442.82 clat (msec): min=10, max=584, avg=249.18, stdev=61.37 lat (msec): min=19, max=601, avg=257.72, stdev=62.03 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 167], 10.00th=[ 182], 20.00th=[ 201], | 30.00th=[ 218], 40.00th=[ 232], 50.00th=[ 247], 60.00th=[ 262], | 70.00th=[ 279], 80.00th=[ 296], 90.00th=[ 326], 95.00th=[ 347], | 99.00th=[ 422], 99.50th=[ 439], 99.90th=[ 575], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 23, max= 158, per=25.15%, avg=78.20, stdev=26.16, samples=128 iops : min= 5, max= 39, avg=19.20, stdev= 6.55, samples=128 write: IOPS=20, BW=80.4KiB/s (82.3kB/s)(5180KiB/64418msec); 0 zone resets slat (usec): min=39, max=9656, avg=288.93, stdev=590.55 clat (msec): min=179, max=1121, avg=542.08, stdev=133.62 lat (msec): min=179, max=1121, avg=542.37, stdev=133.66 clat percentiles (msec): | 1.00th=[ 253], 5.00th=[ 342], 10.00th=[ 380], 20.00th=[ 435], | 30.00th=[ 468], 40.00th=[ 502], 50.00th=[ 531], 60.00th=[ 575], | 70.00th=[ 609], 80.00th=[ 642], 90.00th=[ 718], 95.00th=[ 768], | 99.00th=[ 911], 99.50th=[ 1011], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 31, max= 174, per=24.64%, avg=79.60, stdev=25.96, samples=128 iops : min= 7, max= 43, avg=19.55, stdev= 6.52, samples=128 lat (msec) : 20=0.12%, 50=0.27%, 100=0.27%, 250=25.59%, 500=43.36% lat (msec) : 750=26.80%, 1000=3.32%, 2000=0.27% cpu : usr=0.11%, sys=0.93%, ctx=5153, 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=311KiB/s (319kB/s), 77.2KiB/s-78.5KiB/s (79.0kB/s-80.4kB/s), io=19.6MiB (20.5MB), run=64417-64488msec WRITE: bw=324KiB/s (332kB/s), 80.4KiB/s-81.6KiB/s (82.3kB/s-83.6kB/s), io=20.4MiB (21.4MB), run=64417-64488msec 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=148376: Mon Mar 2 13:02:56 2026 read: IOPS=2, BW=102MiB/s (107MB/s)(40.0MiB/392msec) slat (nsec): min=41061k, max=41061k, avg=41061320.00, stdev= 0.00 clat (nsec): min=323106k, max=323106k, avg=323106213.00, stdev= 0.00 lat (nsec): min=364171k, max=364171k, avg=364171383.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 326], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 326], 95.00th=[ 326], | 99.00th=[ 326], 99.50th=[ 326], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.07%, ctx=45, 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=102MiB/s (107MB/s), 102MiB/s-102MiB/s (107MB/s-107MB/s), io=40.0MiB (41.9MB), run=392-392msec 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