== sanity test 398c: run fio to test AIO ================= 08:06:46 (1775131606) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.49263 s, 85.1 MB/s osc.lustre-OST0000-osc-ffff995ec4f62800.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=182608: Thu Apr 2 08:07:21 2026 write: IOPS=98, BW=396KiB/s (405kB/s)(10.0MiB/25875msec); 0 zone resets slat (usec): min=36, max=12677, avg=272.82, stdev=775.99 clat (msec): min=24, max=325, avg=160.74, stdev=42.13 lat (msec): min=25, max=327, avg=161.01, stdev=42.16 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 104], 10.00th=[ 115], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 178], 80.00th=[ 194], 90.00th=[ 218], 95.00th=[ 230], | 99.00th=[ 288], 99.50th=[ 313], 99.90th=[ 317], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 245, max= 628, per=24.83%, avg=392.86, stdev=79.81, samples=51 iops : min= 61, max= 157, avg=97.84, stdev=20.03, samples=51 lat (msec) : 50=0.35%, 100=3.98%, 250=92.77%, 500=2.89% cpu : usr=0.14%, sys=1.23%, ctx=2301, majf=0, minf=8 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=182609: Thu Apr 2 08:07:21 2026 write: IOPS=99, BW=399KiB/s (409kB/s)(10.0MiB/25668msec); 0 zone resets slat (usec): min=37, max=31381, avg=303.72, stdev=958.52 clat (msec): min=13, max=328, avg=159.92, stdev=43.66 lat (msec): min=13, max=328, avg=160.22, stdev=43.67 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 97], 10.00th=[ 114], 20.00th=[ 129], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 180], 80.00th=[ 194], 90.00th=[ 215], 95.00th=[ 234], | 99.00th=[ 292], 99.50th=[ 317], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 190, max= 741, per=25.10%, avg=397.02, stdev=95.30, samples=50 iops : min= 47, max= 185, avg=98.84, stdev=23.92, samples=50 lat (msec) : 20=0.04%, 50=0.66%, 100=4.65%, 250=91.80%, 500=2.85% cpu : usr=0.18%, sys=1.34%, ctx=2940, majf=0, minf=8 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=182610: Thu Apr 2 08:07:21 2026 write: IOPS=99, BW=396KiB/s (406kB/s)(10.0MiB/25829msec); 0 zone resets slat (usec): min=45, max=8717, avg=279.68, stdev=670.20 clat (msec): min=18, max=330, avg=160.60, stdev=42.37 lat (msec): min=18, max=330, avg=160.89, stdev=42.36 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 100], 10.00th=[ 113], 20.00th=[ 129], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 178], 80.00th=[ 197], 90.00th=[ 218], 95.00th=[ 234], | 99.00th=[ 279], 99.50th=[ 305], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 330] bw ( KiB/s): min= 245, max= 607, per=24.93%, avg=394.37, stdev=76.51, samples=51 iops : min= 61, max= 151, avg=98.18, stdev=19.12, samples=51 lat (msec) : 20=0.04%, 50=0.12%, 100=5.39%, 250=91.95%, 500=2.50% cpu : usr=0.21%, sys=1.42%, ctx=2710, 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=182611: Thu Apr 2 08:07:21 2026 write: IOPS=99, BW=396KiB/s (406kB/s)(10.0MiB/25829msec); 0 zone resets slat (usec): min=38, max=31040, avg=318.02, stdev=1032.11 clat (msec): min=27, max=333, avg=160.57, stdev=42.65 lat (msec): min=28, max=336, avg=160.89, stdev=42.71 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 101], 10.00th=[ 115], 20.00th=[ 130], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 180], 80.00th=[ 197], 90.00th=[ 218], 95.00th=[ 236], | 99.00th=[ 279], 99.50th=[ 300], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 207, max= 628, per=24.98%, avg=395.18, stdev=85.99, samples=51 iops : min= 51, max= 157, avg=98.39, stdev=21.56, samples=51 lat (msec) : 50=0.74%, 100=4.02%, 250=92.93%, 500=2.30% cpu : usr=0.19%, sys=1.39%, ctx=2578, 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 Run status group 0 (all jobs): WRITE: bw=1583KiB/s (1621kB/s), 396KiB/s-399KiB/s (405kB/s-409kB/s), io=40.0MiB (41.9MB), run=25668-25875msec 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=182625: Thu Apr 2 08:08:08 2026 read: IOPS=31, BW=126KiB/s (129kB/s)(5048KiB/40186msec) slat (usec): min=2478, max=79974, avg=17168.55, stdev=10789.27 clat (msec): min=15, max=479, avg=238.17, stdev=79.03 lat (msec): min=26, max=518, avg=255.35, stdev=83.24 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 125], 10.00th=[ 138], 20.00th=[ 167], | 30.00th=[ 190], 40.00th=[ 211], 50.00th=[ 230], 60.00th=[ 255], | 70.00th=[ 275], 80.00th=[ 309], 90.00th=[ 351], 95.00th=[ 384], | 99.00th=[ 439], 99.50th=[ 456], 99.90th=[ 477], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 54, max= 240, per=24.93%, avg=124.42, stdev=43.12, samples=79 iops : min= 13, max= 60, avg=30.61, stdev=10.84, samples=79 write: IOPS=32, BW=129KiB/s (132kB/s)(5192KiB/40186msec); 0 zone resets slat (usec): min=45, max=26694, avg=435.26, stdev=1522.35 clat (msec): min=46, max=511, avg=243.55, stdev=77.17 lat (msec): min=46, max=511, avg=243.99, stdev=77.23 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 130], 10.00th=[ 146], 20.00th=[ 176], | 30.00th=[ 194], 40.00th=[ 215], 50.00th=[ 239], 60.00th=[ 259], | 70.00th=[ 284], 80.00th=[ 309], 90.00th=[ 351], 95.00th=[ 376], | 99.00th=[ 451], 99.50th=[ 468], 99.90th=[ 481], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 47, max= 232, per=24.79%, avg=128.68, stdev=43.56, samples=79 iops : min= 11, max= 58, avg=31.68, stdev=10.95, samples=79 lat (msec) : 20=0.04%, 50=0.08%, 100=0.59%, 250=56.09%, 500=43.16% lat (msec) : 750=0.04% cpu : usr=0.22%, sys=1.62%, ctx=4346, 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=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=182626: Thu Apr 2 08:08:08 2026 read: IOPS=31, BW=125KiB/s (128kB/s)(4976KiB/39899msec) slat (usec): min=63, max=83344, avg=17470.61, stdev=11236.07 clat (msec): min=19, max=490, avg=236.53, stdev=77.45 lat (msec): min=26, max=507, avg=254.02, stdev=81.38 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 165], | 30.00th=[ 190], 40.00th=[ 209], 50.00th=[ 228], 60.00th=[ 253], | 70.00th=[ 275], 80.00th=[ 305], 90.00th=[ 342], 95.00th=[ 372], | 99.00th=[ 430], 99.50th=[ 456], 99.90th=[ 485], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 55, max= 231, per=24.83%, avg=123.89, stdev=39.94, samples=79 iops : min= 13, max= 57, avg=30.48, stdev=10.04, samples=79 write: IOPS=32, BW=132KiB/s (135kB/s)(5264KiB/39899msec); 0 zone resets slat (usec): min=41, max=19864, avg=387.51, stdev=1204.42 clat (msec): min=90, max=509, avg=243.78, stdev=78.19 lat (msec): min=90, max=509, avg=244.18, stdev=78.26 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 129], 10.00th=[ 146], 20.00th=[ 169], | 30.00th=[ 192], 40.00th=[ 215], 50.00th=[ 239], 60.00th=[ 262], | 70.00th=[ 284], 80.00th=[ 309], 90.00th=[ 355], 95.00th=[ 388], | 99.00th=[ 430], 99.50th=[ 468], 99.90th=[ 485], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 63, max= 264, per=25.37%, avg=131.67, stdev=48.25, samples=79 iops : min= 15, max= 66, avg=32.43, stdev=12.12, samples=79 lat (msec) : 20=0.04%, 50=0.04%, 100=0.62%, 250=55.78%, 500=43.48% lat (msec) : 750=0.04% cpu : usr=0.28%, sys=1.73%, ctx=4343, 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=182627: Thu Apr 2 08:08:08 2026 read: IOPS=31, BW=124KiB/s (127kB/s)(4984KiB/40120msec) slat (usec): min=1761, max=92978, avg=17106.12, stdev=10939.26 clat (msec): min=86, max=513, avg=235.94, stdev=76.52 lat (msec): min=91, max=539, avg=253.05, stdev=80.78 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 127], 10.00th=[ 140], 20.00th=[ 165], | 30.00th=[ 188], 40.00th=[ 209], 50.00th=[ 228], 60.00th=[ 249], | 70.00th=[ 275], 80.00th=[ 300], 90.00th=[ 347], 95.00th=[ 380], | 99.00th=[ 422], 99.50th=[ 435], 99.90th=[ 502], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 39, max= 255, per=24.85%, avg=124.01, stdev=47.65, samples=79 iops : min= 9, max= 63, avg=30.52, stdev=12.00, samples=79 write: IOPS=32, BW=131KiB/s (134kB/s)(5256KiB/40120msec); 0 zone resets slat (usec): min=46, max=20864, avg=370.51, stdev=1186.77 clat (msec): min=93, max=475, avg=244.84, stdev=77.68 lat (msec): min=93, max=475, avg=245.21, stdev=77.78 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 131], 10.00th=[ 146], 20.00th=[ 174], | 30.00th=[ 199], 40.00th=[ 218], 50.00th=[ 239], 60.00th=[ 259], | 70.00th=[ 284], 80.00th=[ 313], 90.00th=[ 351], 95.00th=[ 388], | 99.00th=[ 439], 99.50th=[ 447], 99.90th=[ 456], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 46, max= 280, per=25.12%, avg=130.39, stdev=46.81, samples=79 iops : min= 11, max= 70, avg=32.11, stdev=11.73, samples=79 lat (msec) : 100=0.51%, 250=57.07%, 500=42.34%, 750=0.08% cpu : usr=0.28%, sys=1.96%, ctx=4531, 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=182628: Thu Apr 2 08:08:08 2026 read: IOPS=31, BW=126KiB/s (129kB/s)(5060KiB/40190msec) slat (usec): min=2801, max=71750, avg=17306.10, stdev=10896.25 clat (msec): min=27, max=515, avg=237.30, stdev=80.28 lat (msec): min=40, max=525, avg=254.61, stdev=84.30 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 122], 10.00th=[ 138], 20.00th=[ 161], | 30.00th=[ 186], 40.00th=[ 209], 50.00th=[ 230], 60.00th=[ 255], | 70.00th=[ 279], 80.00th=[ 305], 90.00th=[ 347], 95.00th=[ 380], | 99.00th=[ 451], 99.50th=[ 464], 99.90th=[ 510], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 39, max= 245, per=25.03%, avg=124.91, stdev=44.69, samples=79 iops : min= 9, max= 61, avg=30.75, stdev=11.23, samples=79 write: IOPS=32, BW=129KiB/s (132kB/s)(5180KiB/40190msec); 0 zone resets slat (usec): min=40, max=35050, avg=385.55, stdev=1707.33 clat (msec): min=27, max=491, avg=244.48, stdev=79.44 lat (msec): min=27, max=492, avg=244.87, stdev=79.57 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 132], 10.00th=[ 146], 20.00th=[ 171], | 30.00th=[ 194], 40.00th=[ 213], 50.00th=[ 241], 60.00th=[ 264], | 70.00th=[ 284], 80.00th=[ 309], 90.00th=[ 351], 95.00th=[ 393], | 99.00th=[ 456], 99.50th=[ 468], 99.90th=[ 489], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 47, max= 239, per=24.62%, avg=127.80, stdev=44.10, samples=79 iops : min= 11, max= 59, avg=31.47, stdev=11.07, samples=79 lat (msec) : 50=0.12%, 100=0.62%, 250=55.78%, 500=43.40%, 750=0.08% cpu : usr=0.22%, sys=1.86%, ctx=4068, 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=499KiB/s (511kB/s), 124KiB/s-126KiB/s (127kB/s-129kB/s), io=19.6MiB (20.5MB), run=39899-40190msec WRITE: bw=520KiB/s (532kB/s), 129KiB/s-132KiB/s (132kB/s-135kB/s), io=20.4MiB (21.4MB), run=39899-40190msec 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=182638: Thu Apr 2 08:08:19 2026 read: IOPS=1, BW=62.2MiB/s (65.2MB/s)(40.0MiB/643msec) slat (nsec): min=41302k, max=41302k, avg=41301739.00, stdev= 0.00 clat (nsec): min=570969k, max=570969k, avg=570969380.00, stdev= 0.00 lat (nsec): min=612307k, max=612307k, avg=612307064.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.56%, ctx=7, 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=62.2MiB/s (65.2MB/s), 62.2MiB/s-62.2MiB/s (65.2MB/s-65.2MB/s), io=40.0MiB (41.9MB), run=643-643msec 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