== sanity test 398c: run fio to test AIO ================= 06:57:15 (1779101835) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.708148 s, 59.2 MB/s osc.lustre-OST0000-osc-ffff88e2981ff800.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=179513: Mon May 18 06:58:00 2026 write: IOPS=75, BW=301KiB/s (308kB/s)(10.0MiB/34051msec); 0 zone resets slat (usec): min=39, max=19621, avg=411.71, stdev=1224.78 clat (msec): min=39, max=585, avg=212.20, stdev=67.09 lat (msec): min=40, max=585, avg=212.62, stdev=67.13 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 116], 10.00th=[ 130], 20.00th=[ 153], | 30.00th=[ 171], 40.00th=[ 188], 50.00th=[ 207], 60.00th=[ 226], | 70.00th=[ 245], 80.00th=[ 271], 90.00th=[ 296], 95.00th=[ 330], | 99.00th=[ 376], 99.50th=[ 443], 99.90th=[ 542], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 110, max= 505, per=24.89%, avg=298.88, stdev=90.36, samples=67 iops : min= 27, max= 126, avg=74.27, stdev=22.62, samples=67 lat (msec) : 50=0.04%, 100=1.37%, 250=71.21%, 500=27.23%, 750=0.16% cpu : usr=0.17%, sys=1.21%, ctx=2183, 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=179514: Mon May 18 06:58:00 2026 write: IOPS=75, BW=300KiB/s (308kB/s)(10.0MiB/34082msec); 0 zone resets slat (usec): min=40, max=31132, avg=484.73, stdev=1438.75 clat (msec): min=35, max=528, avg=212.35, stdev=65.95 lat (msec): min=36, max=528, avg=212.84, stdev=66.02 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 118], 10.00th=[ 130], 20.00th=[ 155], | 30.00th=[ 171], 40.00th=[ 192], 50.00th=[ 213], 60.00th=[ 226], | 70.00th=[ 241], 80.00th=[ 262], 90.00th=[ 296], 95.00th=[ 317], | 99.00th=[ 409], 99.50th=[ 439], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 142, max= 517, per=24.92%, avg=299.30, stdev=82.59, samples=67 iops : min= 35, max= 129, avg=74.39, stdev=20.68, samples=67 lat (msec) : 50=0.04%, 100=1.52%, 250=71.91%, 500=26.37%, 750=0.16% cpu : usr=0.24%, sys=1.49%, ctx=2761, 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=179515: Mon May 18 06:58:00 2026 write: IOPS=75, BW=300KiB/s (308kB/s)(10.0MiB/34079msec); 0 zone resets slat (usec): min=38, max=27626, avg=490.81, stdev=1499.06 clat (msec): min=56, max=503, avg=212.25, stdev=67.07 lat (msec): min=59, max=503, avg=212.74, stdev=67.08 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 116], 10.00th=[ 130], 20.00th=[ 155], | 30.00th=[ 171], 40.00th=[ 190], 50.00th=[ 209], 60.00th=[ 228], | 70.00th=[ 241], 80.00th=[ 264], 90.00th=[ 296], 95.00th=[ 330], | 99.00th=[ 401], 99.50th=[ 456], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 135, max= 509, per=24.86%, avg=298.63, stdev=88.41, samples=67 iops : min= 33, max= 127, avg=74.22, stdev=22.14, samples=67 lat (msec) : 100=1.88%, 250=72.11%, 500=25.66%, 750=0.35% cpu : usr=0.20%, sys=1.50%, ctx=2577, 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=179516: Mon May 18 06:58:00 2026 write: IOPS=75, BW=301KiB/s (308kB/s)(10.0MiB/34039msec); 0 zone resets slat (usec): min=37, max=15747, avg=400.57, stdev=1073.84 clat (msec): min=72, max=609, avg=211.81, stdev=67.85 lat (msec): min=72, max=609, avg=212.22, stdev=67.87 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 120], 10.00th=[ 129], 20.00th=[ 150], | 30.00th=[ 171], 40.00th=[ 188], 50.00th=[ 209], 60.00th=[ 228], | 70.00th=[ 243], 80.00th=[ 262], 90.00th=[ 300], 95.00th=[ 338], | 99.00th=[ 380], 99.50th=[ 405], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 87, max= 509, per=24.88%, avg=298.85, stdev=88.70, samples=67 iops : min= 21, max= 127, avg=74.27, stdev=22.20, samples=67 lat (msec) : 100=1.91%, 250=71.80%, 500=26.09%, 750=0.20% cpu : usr=0.21%, sys=1.27%, ctx=2151, 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=1202KiB/s (1231kB/s), 300KiB/s-301KiB/s (308kB/s-308kB/s), io=40.0MiB (41.9MB), run=34039-34082msec 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=179533: Mon May 18 06:58:49 2026 read: IOPS=33, BW=133KiB/s (137kB/s)(5048KiB/37823msec) slat (usec): min=3400, max=87230, avg=17468.05, stdev=10068.48 clat (msec): min=82, max=685, avg=220.57, stdev=74.35 lat (msec): min=97, max=713, avg=238.05, stdev=77.97 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 134], 10.00th=[ 148], 20.00th=[ 167], | 30.00th=[ 182], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 222], | 70.00th=[ 239], 80.00th=[ 259], 90.00th=[ 300], 95.00th=[ 368], | 99.00th=[ 502], 99.50th=[ 567], 99.90th=[ 634], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 31, max= 287, per=25.05%, avg=132.74, stdev=44.35, samples=74 iops : min= 7, max= 71, avg=32.68, stdev=11.14, samples=74 write: IOPS=34, BW=137KiB/s (141kB/s)(5192KiB/37823msec); 0 zone resets slat (usec): min=44, max=12551, avg=413.85, stdev=967.36 clat (msec): min=90, max=714, avg=229.69, stdev=77.62 lat (msec): min=90, max=715, avg=230.11, stdev=77.56 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 142], 10.00th=[ 153], 20.00th=[ 176], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 215], 60.00th=[ 228], | 70.00th=[ 243], 80.00th=[ 264], 90.00th=[ 313], 95.00th=[ 368], | 99.00th=[ 567], 99.50th=[ 609], 99.90th=[ 667], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 36, max= 270, per=24.83%, avg=137.07, stdev=43.54, samples=74 iops : min= 9, max= 67, avg=33.73, stdev=10.93, samples=74 lat (msec) : 100=0.12%, 250=74.88%, 500=23.71%, 750=1.29% cpu : usr=0.33%, sys=2.12%, ctx=4506, 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=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=179534: Mon May 18 06:58:49 2026 read: IOPS=33, BW=132KiB/s (135kB/s)(4976KiB/37683msec) slat (msec): min=3, max=107, avg=17.23, stdev=10.19 clat (msec): min=42, max=640, avg=220.68, stdev=74.73 lat (msec): min=85, max=682, avg=237.92, stdev=77.64 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 136], 10.00th=[ 148], 20.00th=[ 167], | 30.00th=[ 182], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 222], | 70.00th=[ 241], 80.00th=[ 262], 90.00th=[ 296], 95.00th=[ 347], | 99.00th=[ 550], 99.50th=[ 584], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 39, max= 231, per=24.86%, avg=131.74, stdev=44.65, samples=74 iops : min= 9, max= 57, avg=32.39, stdev=11.18, samples=74 write: IOPS=34, BW=140KiB/s (143kB/s)(5264KiB/37683msec); 0 zone resets slat (usec): min=51, max=26717, avg=490.20, stdev=1305.98 clat (msec): min=82, max=651, avg=230.02, stdev=75.83 lat (msec): min=82, max=651, avg=230.51, stdev=75.84 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 142], 10.00th=[ 157], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 203], 50.00th=[ 215], 60.00th=[ 230], | 70.00th=[ 247], 80.00th=[ 271], 90.00th=[ 309], 95.00th=[ 363], | 99.00th=[ 567], 99.50th=[ 609], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 31, max= 239, per=25.26%, avg=139.43, stdev=40.51, samples=74 iops : min= 7, max= 59, avg=34.34, stdev=10.21, samples=74 lat (msec) : 50=0.04%, 100=0.27%, 250=73.44%, 500=24.88%, 750=1.37% cpu : usr=0.30%, sys=2.33%, ctx=4292, 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=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=179535: Mon May 18 06:58:49 2026 read: IOPS=32, BW=132KiB/s (135kB/s)(4984KiB/37824msec) slat (usec): min=3203, max=87722, avg=17491.61, stdev=10371.67 clat (msec): min=12, max=724, avg=222.27, stdev=77.60 lat (msec): min=24, max=750, avg=239.77, stdev=81.16 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 131], 10.00th=[ 146], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 222], | 70.00th=[ 243], 80.00th=[ 262], 90.00th=[ 300], 95.00th=[ 372], | 99.00th=[ 527], 99.50th=[ 592], 99.90th=[ 676], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 47, max= 247, per=24.76%, avg=131.20, stdev=44.09, samples=74 iops : min= 11, max= 61, avg=32.26, stdev=11.06, samples=74 write: IOPS=34, BW=139KiB/s (142kB/s)(5256KiB/37824msec); 0 zone resets slat (usec): min=40, max=23597, avg=497.85, stdev=1286.00 clat (msec): min=29, max=652, avg=229.68, stdev=74.94 lat (msec): min=29, max=653, avg=230.18, stdev=74.94 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 140], 10.00th=[ 157], 20.00th=[ 178], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 220], 60.00th=[ 230], | 70.00th=[ 245], 80.00th=[ 266], 90.00th=[ 309], 95.00th=[ 376], | 99.00th=[ 518], 99.50th=[ 567], 99.90th=[ 642], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 55, max= 223, per=25.00%, avg=138.01, stdev=40.69, samples=74 iops : min= 13, max= 55, avg=33.97, stdev=10.24, samples=74 lat (msec) : 20=0.04%, 50=0.12%, 100=0.31%, 250=73.59%, 500=24.53% lat (msec) : 750=1.41% cpu : usr=0.33%, sys=2.30%, ctx=4193, 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=179536: Mon May 18 06:58:49 2026 read: IOPS=33, BW=134KiB/s (137kB/s)(5060KiB/37711msec) slat (usec): min=57, max=88193, avg=17278.17, stdev=10562.66 clat (msec): min=8, max=617, avg=223.94, stdev=77.68 lat (msec): min=23, max=671, avg=241.24, stdev=80.86 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 133], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 186], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 262], 90.00th=[ 305], 95.00th=[ 384], | 99.00th=[ 558], 99.50th=[ 584], 99.90th=[ 600], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 39, max= 279, per=25.25%, avg=133.84, stdev=38.49, samples=74 iops : min= 9, max= 69, avg=32.95, stdev= 9.68, samples=74 write: IOPS=34, BW=137KiB/s (141kB/s)(5180KiB/37711msec); 0 zone resets slat (usec): min=43, max=39300, avg=473.25, stdev=1538.84 clat (msec): min=91, max=649, avg=228.99, stdev=73.06 lat (msec): min=91, max=650, avg=229.47, stdev=73.01 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 178], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 215], 60.00th=[ 228], | 70.00th=[ 247], 80.00th=[ 268], 90.00th=[ 309], 95.00th=[ 359], | 99.00th=[ 518], 99.50th=[ 592], 99.90th=[ 617], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 23, max= 246, per=24.69%, avg=136.27, stdev=42.13, samples=74 iops : min= 5, max= 61, avg=33.54, stdev=10.59, samples=74 lat (msec) : 10=0.04%, 100=0.31%, 250=73.09%, 500=25.08%, 750=1.48% cpu : usr=0.29%, sys=2.19%, ctx=4314, 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=531KiB/s (543kB/s), 132KiB/s-134KiB/s (135kB/s-137kB/s), io=19.6MiB (20.5MB), run=37683-37824msec WRITE: bw=552KiB/s (566kB/s), 137KiB/s-140KiB/s (141kB/s-143kB/s), io=20.4MiB (21.4MB), run=37683-37824msec 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=179546: Mon May 18 06:59:01 2026 read: IOPS=1, BW=72.1MiB/s (75.6MB/s)(40.0MiB/555msec) slat (nsec): min=82562k, max=82562k, avg=82562406.00, stdev= 0.00 clat (nsec): min=436957k, max=436957k, avg=436957388.00, stdev= 0.00 lat (nsec): min=519525k, max=519525k, avg=519525417.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 439], | 70.00th=[ 439], 80.00th=[ 439], 90.00th=[ 439], 95.00th=[ 439], | 99.00th=[ 439], 99.50th=[ 439], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.62%, ctx=9, 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=72.1MiB/s (75.6MB/s), 72.1MiB/s-72.1MiB/s (75.6MB/s-75.6MB/s), io=40.0MiB (41.9MB), run=555-555msec 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