== sanity test 398c: run fio to test AIO ================= 00:15:47 (1789272947) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.624691 s, 67.1 MB/s osc.lustre-OST0000-osc-ffff9c0c98338000.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=180189: Sun Sep 13 00:16:37 2026 write: IOPS=66, BW=266KiB/s (272kB/s)(10.0MiB/38515msec); 0 zone resets slat (usec): min=21, max=48131, avg=198.50, stdev=1354.94 clat (msec): min=56, max=464, avg=240.12, stdev=79.66 lat (msec): min=56, max=464, avg=240.32, stdev=79.72 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 117], 10.00th=[ 133], 20.00th=[ 171], | 30.00th=[ 188], 40.00th=[ 211], 50.00th=[ 241], 60.00th=[ 259], | 70.00th=[ 284], 80.00th=[ 309], 90.00th=[ 347], 95.00th=[ 384], | 99.00th=[ 443], 99.50th=[ 456], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 126, max= 628, per=24.82%, avg=263.33, stdev=92.73, samples=76 iops : min= 31, max= 157, avg=65.39, stdev=23.27, samples=76 lat (msec) : 100=2.27%, 250=51.88%, 500=45.86% cpu : usr=0.13%, sys=0.52%, ctx=1318, 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=180190: Sun Sep 13 00:16:37 2026 write: IOPS=66, BW=265KiB/s (272kB/s)(10.0MiB/38577msec); 0 zone resets slat (usec): min=22, max=30909, avg=151.04, stdev=979.02 clat (msec): min=32, max=472, avg=239.98, stdev=81.34 lat (msec): min=33, max=472, avg=240.14, stdev=81.36 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 115], 10.00th=[ 136], 20.00th=[ 171], | 30.00th=[ 188], 40.00th=[ 209], 50.00th=[ 232], 60.00th=[ 262], | 70.00th=[ 288], 80.00th=[ 313], 90.00th=[ 347], 95.00th=[ 376], | 99.00th=[ 443], 99.50th=[ 460], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 125, max= 640, per=24.67%, avg=261.79, stdev=99.12, samples=76 iops : min= 31, max= 160, avg=65.03, stdev=24.82, samples=76 lat (msec) : 50=0.04%, 100=3.09%, 250=51.91%, 500=44.96% cpu : usr=0.12%, sys=0.49%, ctx=744, 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=180191: Sun Sep 13 00:16:37 2026 write: IOPS=66, BW=265KiB/s (272kB/s)(10.0MiB/38588msec); 0 zone resets slat (usec): min=22, max=23464, avg=173.10, stdev=798.99 clat (msec): min=37, max=464, avg=240.25, stdev=80.93 lat (msec): min=37, max=467, avg=240.43, stdev=80.93 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 116], 10.00th=[ 136], 20.00th=[ 169], | 30.00th=[ 190], 40.00th=[ 209], 50.00th=[ 236], 60.00th=[ 262], | 70.00th=[ 288], 80.00th=[ 313], 90.00th=[ 347], 95.00th=[ 380], | 99.00th=[ 422], 99.50th=[ 435], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 126, max= 516, per=24.76%, avg=262.67, stdev=93.10, samples=76 iops : min= 31, max= 129, avg=65.24, stdev=23.36, samples=76 lat (msec) : 50=0.20%, 100=3.36%, 250=51.48%, 500=44.96% cpu : usr=0.12%, sys=0.57%, ctx=1453, 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=180192: Sun Sep 13 00:16:37 2026 write: IOPS=66, BW=267KiB/s (273kB/s)(10.0MiB/38391msec); 0 zone resets slat (usec): min=23, max=14444, avg=208.26, stdev=773.92 clat (msec): min=25, max=472, avg=239.60, stdev=81.24 lat (msec): min=25, max=472, avg=239.81, stdev=81.21 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 114], 10.00th=[ 140], 20.00th=[ 171], | 30.00th=[ 188], 40.00th=[ 211], 50.00th=[ 239], 60.00th=[ 262], | 70.00th=[ 284], 80.00th=[ 313], 90.00th=[ 351], 95.00th=[ 384], | 99.00th=[ 418], 99.50th=[ 456], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 472] bw ( KiB/s): min= 126, max= 592, per=24.96%, avg=264.84, stdev=87.23, samples=76 iops : min= 31, max= 148, avg=65.76, stdev=21.86, samples=76 lat (msec) : 50=0.39%, 100=3.40%, 250=49.88%, 500=46.33% cpu : usr=0.17%, sys=0.74%, ctx=2722, 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=1061KiB/s (1087kB/s), 265KiB/s-267KiB/s (272kB/s-273kB/s), io=40.0MiB (41.9MB), run=38391-38588msec 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=180208: Sun Sep 13 00:17:23 2026 read: IOPS=33, BW=133KiB/s (136kB/s)(5048KiB/38008msec) slat (usec): min=52, max=84522, avg=16540.39, stdev=9992.55 clat (msec): min=21, max=423, avg=226.65, stdev=62.89 lat (msec): min=22, max=455, avg=243.19, stdev=65.95 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 130], 10.00th=[ 146], 20.00th=[ 174], | 30.00th=[ 192], 40.00th=[ 211], 50.00th=[ 226], 60.00th=[ 243], | 70.00th=[ 257], 80.00th=[ 275], 90.00th=[ 309], 95.00th=[ 334], | 99.00th=[ 388], 99.50th=[ 401], 99.90th=[ 418], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 70, max= 261, per=25.28%, avg=131.99, stdev=33.09, samples=75 iops : min= 17, max= 65, avg=32.47, stdev= 8.30, samples=75 write: IOPS=34, BW=137KiB/s (140kB/s)(5192KiB/38008msec); 0 zone resets slat (usec): min=22, max=9541, avg=209.97, stdev=677.31 clat (msec): min=66, max=413, avg=231.27, stdev=59.32 lat (msec): min=66, max=413, avg=231.48, stdev=59.33 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 133], 10.00th=[ 157], 20.00th=[ 184], | 30.00th=[ 203], 40.00th=[ 218], 50.00th=[ 230], 60.00th=[ 243], | 70.00th=[ 257], 80.00th=[ 275], 90.00th=[ 313], 95.00th=[ 338], | 99.00th=[ 376], 99.50th=[ 384], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 72, max= 246, per=25.06%, avg=136.07, stdev=36.49, samples=75 iops : min= 18, max= 61, avg=33.47, stdev= 9.13, samples=75 lat (msec) : 50=0.16%, 100=1.41%, 250=64.34%, 500=34.10% cpu : usr=0.20%, sys=1.36%, ctx=3613, 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=180209: Sun Sep 13 00:17:23 2026 read: IOPS=32, BW=130KiB/s (134kB/s)(4976KiB/38133msec) slat (usec): min=2106, max=89972, avg=16611.47, stdev=10319.09 clat (msec): min=37, max=447, avg=225.19, stdev=59.89 lat (msec): min=74, max=475, avg=241.81, stdev=62.63 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 132], 10.00th=[ 150], 20.00th=[ 174], | 30.00th=[ 190], 40.00th=[ 207], 50.00th=[ 222], 60.00th=[ 239], | 70.00th=[ 255], 80.00th=[ 275], 90.00th=[ 309], 95.00th=[ 330], | 99.00th=[ 372], 99.50th=[ 388], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 74, max= 223, per=24.86%, avg=129.76, stdev=34.63, samples=75 iops : min= 18, max= 55, avg=31.91, stdev= 8.69, samples=75 write: IOPS=34, BW=138KiB/s (141kB/s)(5264KiB/38133msec); 0 zone resets slat (usec): min=22, max=30178, avg=235.74, stdev=1063.31 clat (msec): min=77, max=410, avg=232.61, stdev=57.27 lat (msec): min=77, max=410, avg=232.85, stdev=57.33 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 140], 10.00th=[ 163], 20.00th=[ 188], | 30.00th=[ 207], 40.00th=[ 220], 50.00th=[ 230], 60.00th=[ 243], | 70.00th=[ 257], 80.00th=[ 275], 90.00th=[ 309], 95.00th=[ 338], | 99.00th=[ 376], 99.50th=[ 384], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 71, max= 246, per=25.37%, avg=137.76, stdev=36.97, samples=75 iops : min= 17, max= 61, avg=33.89, stdev= 9.25, samples=75 lat (msec) : 50=0.04%, 100=0.78%, 250=65.55%, 500=33.63% cpu : usr=0.21%, sys=1.38%, ctx=4328, 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=180210: Sun Sep 13 00:17:23 2026 read: IOPS=32, BW=130KiB/s (133kB/s)(4984KiB/38380msec) slat (usec): min=2039, max=75227, avg=16355.71, stdev=9834.04 clat (msec): min=61, max=399, avg=226.02, stdev=58.98 lat (msec): min=75, max=441, avg=242.38, stdev=61.04 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 132], 10.00th=[ 153], 20.00th=[ 178], | 30.00th=[ 197], 40.00th=[ 209], 50.00th=[ 224], 60.00th=[ 239], | 70.00th=[ 255], 80.00th=[ 275], 90.00th=[ 305], 95.00th=[ 334], | 99.00th=[ 376], 99.50th=[ 384], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 67, max= 255, per=24.75%, avg=129.20, stdev=38.00, samples=76 iops : min= 16, max= 63, avg=31.78, stdev= 9.53, samples=76 write: IOPS=34, BW=137KiB/s (140kB/s)(5256KiB/38380msec); 0 zone resets slat (usec): min=25, max=16419, avg=213.75, stdev=710.74 clat (msec): min=60, max=413, avg=234.44, stdev=56.20 lat (msec): min=64, max=417, avg=234.65, stdev=56.22 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 142], 10.00th=[ 161], 20.00th=[ 188], | 30.00th=[ 207], 40.00th=[ 224], 50.00th=[ 236], 60.00th=[ 247], | 70.00th=[ 262], 80.00th=[ 279], 90.00th=[ 309], 95.00th=[ 334], | 99.00th=[ 359], 99.50th=[ 384], 99.90th=[ 409], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 63, max= 240, per=25.00%, avg=135.78, stdev=35.90, samples=76 iops : min= 15, max= 60, avg=33.41, stdev= 9.01, samples=76 lat (msec) : 100=0.70%, 250=64.26%, 500=35.04% cpu : usr=0.18%, sys=1.35%, ctx=4344, 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=180211: Sun Sep 13 00:17:23 2026 read: IOPS=32, BW=132KiB/s (135kB/s)(5060KiB/38405msec) slat (usec): min=1998, max=82945, avg=16391.86, stdev=9887.13 clat (msec): min=68, max=419, avg=226.22, stdev=59.10 lat (msec): min=71, max=463, avg=242.62, stdev=61.49 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 132], 10.00th=[ 155], 20.00th=[ 178], | 30.00th=[ 192], 40.00th=[ 211], 50.00th=[ 224], 60.00th=[ 241], | 70.00th=[ 257], 80.00th=[ 279], 90.00th=[ 305], 95.00th=[ 326], | 99.00th=[ 376], 99.50th=[ 393], 99.90th=[ 409], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 67, max= 246, per=25.07%, avg=130.88, stdev=36.15, samples=76 iops : min= 16, max= 61, avg=32.17, stdev= 9.08, samples=76 write: IOPS=33, BW=135KiB/s (138kB/s)(5180KiB/38405msec); 0 zone resets slat (usec): min=23, max=11283, avg=239.03, stdev=784.70 clat (msec): min=63, max=426, avg=234.25, stdev=58.72 lat (msec): min=63, max=426, avg=234.49, stdev=58.74 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 138], 10.00th=[ 161], 20.00th=[ 186], | 30.00th=[ 205], 40.00th=[ 220], 50.00th=[ 234], 60.00th=[ 247], | 70.00th=[ 262], 80.00th=[ 279], 90.00th=[ 313], 95.00th=[ 338], | 99.00th=[ 376], 99.50th=[ 393], 99.90th=[ 405], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 72, max= 240, per=24.69%, avg=134.07, stdev=36.04, samples=76 iops : min= 18, max= 60, avg=32.97, stdev= 9.02, samples=76 lat (msec) : 100=1.02%, 250=63.05%, 500=35.94% cpu : usr=0.24%, sys=1.38%, ctx=3998, 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=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=523KiB/s (535kB/s), 130KiB/s-133KiB/s (133kB/s-136kB/s), io=19.6MiB (20.5MB), run=38008-38405msec WRITE: bw=544KiB/s (557kB/s), 135KiB/s-138KiB/s (138kB/s-141kB/s), io=20.4MiB (21.4MB), run=38008-38405msec 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=180222: Sun Sep 13 00:17:38 2026 read: IOPS=1, BW=56.6MiB/s (59.3MB/s)(40.0MiB/707msec) slat (nsec): min=97578k, max=97578k, avg=97578160.00, stdev= 0.00 clat (nsec): min=552698k, max=552698k, avg=552697751.00, stdev= 0.00 lat (nsec): min=650281k, max=650281k, avg=650281101.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] lat (msec) : 750=100.00% cpu : usr=0.57%, sys=2.83%, ctx=17, majf=0, minf=7 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=56.6MiB/s (59.3MB/s), 56.6MiB/s-56.6MiB/s (59.3MB/s-59.3MB/s), io=40.0MiB (41.9MB), run=707-707msec 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