== sanity test 398c: run fio to test AIO ================= 12:38:30 (1788626310) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.664128 s, 63.2 MB/s osc.lustre-OST0000-osc-ffff8e328717e800.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=180329: Sat Sep 5 12:39:08 2026 write: IOPS=89, BW=360KiB/s (369kB/s)(10.0MiB/28447msec); 0 zone resets slat (usec): min=23, max=17316, avg=142.59, stdev=583.51 clat (msec): min=18, max=346, avg=176.75, stdev=44.86 lat (msec): min=18, max=346, avg=176.90, stdev=44.87 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 113], 10.00th=[ 124], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 211], 90.00th=[ 236], 95.00th=[ 257], | 99.00th=[ 330], 99.50th=[ 338], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 223, max= 505, per=24.79%, avg=356.79, stdev=72.70, samples=56 iops : min= 55, max= 126, avg=88.77, stdev=18.18, samples=56 lat (msec) : 20=0.04%, 50=0.04%, 100=1.60%, 250=91.95%, 500=6.37% cpu : usr=0.15%, sys=0.63%, ctx=1761, 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=180330: Sat Sep 5 12:39:08 2026 write: IOPS=90, BW=361KiB/s (370kB/s)(10.0MiB/28348msec); 0 zone resets slat (usec): min=21, max=21157, avg=203.59, stdev=895.96 clat (msec): min=36, max=351, avg=176.83, stdev=43.20 lat (msec): min=37, max=351, avg=177.04, stdev=43.22 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 117], 10.00th=[ 127], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 209], 90.00th=[ 232], 95.00th=[ 259], | 99.00th=[ 300], 99.50th=[ 309], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 254, max= 529, per=24.99%, avg=359.66, stdev=70.58, samples=56 iops : min= 63, max= 132, avg=89.48, stdev=17.70, samples=56 lat (msec) : 50=0.08%, 100=1.52%, 250=91.25%, 500=7.15% cpu : usr=0.18%, sys=0.86%, ctx=2516, 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=180331: Sat Sep 5 12:39:08 2026 write: IOPS=90, BW=361KiB/s (370kB/s)(10.0MiB/28358msec); 0 zone resets slat (usec): min=30, max=25885, avg=185.81, stdev=910.22 clat (msec): min=17, max=351, avg=176.55, stdev=44.29 lat (msec): min=18, max=352, avg=176.74, stdev=44.28 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 117], 10.00th=[ 128], 20.00th=[ 138], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 209], 90.00th=[ 236], 95.00th=[ 257], | 99.00th=[ 321], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 247, max= 509, per=24.93%, avg=358.73, stdev=74.69, samples=56 iops : min= 61, max= 127, avg=89.23, stdev=18.69, samples=56 lat (msec) : 20=0.04%, 50=0.12%, 100=1.05%, 250=92.62%, 500=6.17% cpu : usr=0.13%, sys=0.78%, ctx=1966, 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=180332: Sat Sep 5 12:39:08 2026 write: IOPS=90, BW=361KiB/s (369kB/s)(10.0MiB/28394msec); 0 zone resets slat (usec): min=29, max=16862, avg=173.54, stdev=693.79 clat (msec): min=30, max=348, avg=176.56, stdev=42.93 lat (msec): min=31, max=349, avg=176.74, stdev=42.93 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 118], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 194], 80.00th=[ 209], 90.00th=[ 236], 95.00th=[ 255], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 351] bw ( KiB/s): min= 247, max= 505, per=24.96%, avg=359.12, stdev=70.66, samples=56 iops : min= 61, max= 126, avg=89.36, stdev=17.70, samples=56 lat (msec) : 50=0.23%, 100=1.29%, 250=91.99%, 500=6.48% cpu : usr=0.15%, sys=0.79%, ctx=2284, 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=1440KiB/s (1474kB/s), 360KiB/s-361KiB/s (369kB/s-370kB/s), io=40.0MiB (41.9MB), run=28348-28447msec 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=180347: Sat Sep 5 12:39:53 2026 read: IOPS=36, BW=147KiB/s (151kB/s)(5048KiB/34311msec) slat (usec): min=2919, max=60960, avg=14739.57, stdev=8504.32 clat (msec): min=17, max=410, avg=202.65, stdev=46.83 lat (msec): min=34, max=428, avg=217.39, stdev=47.94 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 134], 10.00th=[ 150], 20.00th=[ 165], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 201], 60.00th=[ 209], | 70.00th=[ 222], 80.00th=[ 236], 90.00th=[ 266], 95.00th=[ 288], | 99.00th=[ 334], 99.50th=[ 393], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 55, max= 232, per=25.04%, avg=146.25, stdev=36.74, samples=68 iops : min= 13, max= 58, avg=36.09, stdev= 9.21, samples=68 write: IOPS=37, BW=151KiB/s (155kB/s)(5192KiB/34311msec); 0 zone resets slat (usec): min=31, max=12836, avg=213.12, stdev=790.12 clat (msec): min=79, max=389, avg=208.16, stdev=43.74 lat (msec): min=80, max=389, avg=208.38, stdev=43.70 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 142], 10.00th=[ 157], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 213], | 70.00th=[ 228], 80.00th=[ 245], 90.00th=[ 271], 95.00th=[ 288], | 99.00th=[ 317], 99.50th=[ 326], 99.90th=[ 342], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 50, max= 253, per=24.81%, avg=150.82, stdev=39.17, samples=68 iops : min= 12, max= 63, avg=37.26, stdev= 9.75, samples=68 lat (msec) : 20=0.04%, 100=0.16%, 250=83.79%, 500=16.02% cpu : usr=0.21%, sys=1.49%, ctx=4218, 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=180348: Sat Sep 5 12:39:53 2026 read: IOPS=36, BW=145KiB/s (148kB/s)(4976KiB/34314msec) slat (usec): min=52, max=50933, avg=14818.27, stdev=8431.48 clat (msec): min=52, max=379, avg=200.52, stdev=44.92 lat (msec): min=63, max=390, avg=215.35, stdev=46.44 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 133], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 197], 60.00th=[ 207], | 70.00th=[ 222], 80.00th=[ 236], 90.00th=[ 262], 95.00th=[ 284], | 99.00th=[ 326], 99.50th=[ 326], 99.90th=[ 372], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 43, max= 216, per=24.66%, avg=144.00, stdev=38.15, samples=68 iops : min= 10, max= 54, avg=35.54, stdev= 9.56, samples=68 write: IOPS=38, BW=153KiB/s (157kB/s)(5264KiB/34314msec); 0 zone resets slat (usec): min=33, max=12127, avg=240.62, stdev=859.61 clat (msec): min=88, max=373, avg=210.48, stdev=43.90 lat (msec): min=88, max=373, avg=210.72, stdev=43.86 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 146], 10.00th=[ 159], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 218], | 70.00th=[ 232], 80.00th=[ 247], 90.00th=[ 268], 95.00th=[ 284], | 99.00th=[ 342], 99.50th=[ 351], 99.90th=[ 368], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 79, max= 239, per=25.17%, avg=153.01, stdev=33.94, samples=68 iops : min= 19, max= 59, avg=37.79, stdev= 8.43, samples=68 lat (msec) : 100=0.31%, 250=83.12%, 500=16.56% cpu : usr=0.32%, sys=1.68%, ctx=4564, 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=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=180349: Sat Sep 5 12:39:53 2026 read: IOPS=36, BW=145KiB/s (149kB/s)(4984KiB/34310msec) slat (usec): min=53, max=288104, avg=14907.20, stdev=12841.67 clat (msec): min=15, max=725, avg=201.47, stdev=57.20 lat (msec): min=24, max=736, avg=216.39, stdev=59.25 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 131], 10.00th=[ 148], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 197], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 232], 90.00th=[ 262], 95.00th=[ 284], | 99.00th=[ 342], 99.50th=[ 393], 99.90th=[ 718], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 15, max= 208, per=24.79%, avg=144.78, stdev=35.51, samples=68 iops : min= 3, max= 52, avg=35.74, stdev= 8.89, samples=68 write: IOPS=38, BW=153KiB/s (157kB/s)(5256KiB/34310msec); 0 zone resets slat (usec): min=30, max=37625, avg=280.15, stdev=1389.00 clat (msec): min=59, max=714, avg=209.62, stdev=55.03 lat (msec): min=59, max=714, avg=209.90, stdev=54.99 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 197], 50.00th=[ 205], 60.00th=[ 215], | 70.00th=[ 226], 80.00th=[ 243], 90.00th=[ 262], 95.00th=[ 279], | 99.00th=[ 351], 99.50th=[ 651], 99.90th=[ 676], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 47, max= 247, per=25.04%, avg=152.22, stdev=39.53, samples=68 iops : min= 11, max= 61, avg=37.59, stdev= 9.87, samples=68 lat (msec) : 20=0.04%, 50=0.08%, 100=0.23%, 250=85.70%, 500=13.40% lat (msec) : 750=0.55% cpu : usr=0.23%, sys=1.54%, ctx=4438, 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=180350: Sat Sep 5 12:39:53 2026 read: IOPS=36, BW=148KiB/s (151kB/s)(5060KiB/34211msec) slat (usec): min=32, max=62137, avg=15039.49, stdev=8418.83 clat (msec): min=42, max=401, avg=203.39, stdev=46.88 lat (msec): min=95, max=411, avg=218.44, stdev=47.76 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 136], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 178], 40.00th=[ 188], 50.00th=[ 199], 60.00th=[ 211], | 70.00th=[ 224], 80.00th=[ 241], 90.00th=[ 268], 95.00th=[ 288], | 99.00th=[ 330], 99.50th=[ 355], 99.90th=[ 388], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 80, max= 216, per=25.23%, avg=147.34, stdev=28.42, samples=67 iops : min= 20, max= 54, avg=36.39, stdev= 7.04, samples=67 write: IOPS=37, BW=151KiB/s (155kB/s)(5180KiB/34211msec); 0 zone resets slat (usec): min=30, max=18424, avg=217.89, stdev=794.43 clat (msec): min=39, max=361, avg=208.52, stdev=43.07 lat (msec): min=39, max=361, avg=208.74, stdev=43.03 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 215], | 70.00th=[ 228], 80.00th=[ 245], 90.00th=[ 266], 95.00th=[ 284], | 99.00th=[ 321], 99.50th=[ 334], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 63, max= 237, per=24.74%, avg=150.40, stdev=35.73, samples=67 iops : min= 15, max= 59, avg=37.13, stdev= 8.94, samples=67 lat (msec) : 50=0.12%, 100=0.16%, 250=83.79%, 500=15.94% cpu : usr=0.23%, sys=1.67%, ctx=4382, 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=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=585KiB/s (599kB/s), 145KiB/s-148KiB/s (148kB/s-151kB/s), io=19.6MiB (20.5MB), run=34211-34314msec WRITE: bw=609KiB/s (623kB/s), 151KiB/s-153KiB/s (155kB/s-157kB/s), io=20.4MiB (21.4MB), run=34211-34314msec 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=180359: Sat Sep 5 12:40:03 2026 read: IOPS=1, BW=72.6MiB/s (76.1MB/s)(40.0MiB/551msec) slat (nsec): min=51035k, max=51035k, avg=51035451.00, stdev= 0.00 clat (nsec): min=485937k, max=485937k, avg=485936913.00, stdev= 0.00 lat (nsec): min=536977k, max=536977k, avg=536976949.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 485], 50.00th=[ 485], 60.00th=[ 485], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 485], 95.00th=[ 485], | 99.00th=[ 485], 99.50th=[ 485], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.82%, ctx=4, 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=72.6MiB/s (76.1MB/s), 72.6MiB/s-72.6MiB/s (76.1MB/s-76.1MB/s), io=40.0MiB (41.9MB), run=551-551msec 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