== sanity test 398c: run fio to test AIO ================= 06:41:14 (1773657674) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.549503 s, 76.3 MB/s osc.lustre-OST0000-osc-ffff93685fdde000.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=148705: Mon Mar 16 06:44:17 2026 write: IOPS=15, BW=60.4KiB/s (61.8kB/s)(10.0MiB/169668msec); 0 zone resets slat (usec): min=35, max=15063, avg=245.73, stdev=710.10 clat (msec): min=94, max=2641, avg=1058.73, stdev=380.29 lat (msec): min=94, max=2642, avg=1058.97, stdev=380.31 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 634], 10.00th=[ 693], 20.00th=[ 776], | 30.00th=[ 844], 40.00th=[ 919], 50.00th=[ 978], 60.00th=[ 1045], | 70.00th=[ 1133], 80.00th=[ 1250], 90.00th=[ 1519], 95.00th=[ 1871], | 99.00th=[ 2400], 99.50th=[ 2467], 99.90th=[ 2601], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 7, max= 128, per=26.54%, avg=63.96, stdev=34.21, samples=315 iops : min= 1, max= 32, avg=15.58, stdev= 8.54, samples=315 lat (msec) : 100=0.04%, 250=0.08%, 500=1.37%, 750=15.59%, 1000=35.51% lat (msec) : 2000=43.28%, >=2000=4.14% cpu : usr=0.03%, sys=0.25%, ctx=2066, 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=148706: Mon Mar 16 06:44:17 2026 write: IOPS=15, BW=60.5KiB/s (61.0kB/s)(10.0MiB/169159msec); 0 zone resets slat (usec): min=35, max=28842, avg=261.40, stdev=1095.81 clat (msec): min=85, max=2682, avg=1056.33, stdev=387.13 lat (msec): min=85, max=2682, avg=1056.59, stdev=387.15 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 600], 10.00th=[ 684], 20.00th=[ 785], | 30.00th=[ 852], 40.00th=[ 911], 50.00th=[ 978], 60.00th=[ 1045], | 70.00th=[ 1133], 80.00th=[ 1267], 90.00th=[ 1569], 95.00th=[ 1838], | 99.00th=[ 2400], 99.50th=[ 2467], 99.90th=[ 2567], 99.95th=[ 2567], | 99.99th=[ 2668] bw ( KiB/s): min= 7, max= 152, per=25.81%, avg=62.19, stdev=30.99, samples=324 iops : min= 1, max= 38, avg=15.14, stdev= 7.78, samples=324 lat (msec) : 100=0.04%, 250=0.43%, 500=1.48%, 750=14.06%, 1000=37.15% lat (msec) : 2000=42.46%, >=2000=4.38% cpu : usr=0.04%, sys=0.25%, ctx=2090, 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=148707: Mon Mar 16 06:44:17 2026 write: IOPS=15, BW=60.4KiB/s (61.8kB/s)(10.0MiB/169667msec); 0 zone resets slat (usec): min=35, max=15339, avg=230.40, stdev=696.60 clat (msec): min=310, max=2680, avg=1058.83, stdev=381.10 lat (msec): min=310, max=2681, avg=1059.06, stdev=381.09 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 625], 10.00th=[ 701], 20.00th=[ 785], | 30.00th=[ 852], 40.00th=[ 911], 50.00th=[ 978], 60.00th=[ 1045], | 70.00th=[ 1133], 80.00th=[ 1250], 90.00th=[ 1569], 95.00th=[ 1854], | 99.00th=[ 2433], 99.50th=[ 2567], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 7, max= 128, per=25.80%, avg=62.17, stdev=30.70, samples=324 iops : min= 1, max= 32, avg=15.13, stdev= 7.70, samples=324 lat (msec) : 500=1.48%, 750=14.38%, 1000=37.19%, 2000=43.09%, >=2000=3.87% cpu : usr=0.03%, sys=0.24%, ctx=1956, 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=148708: Mon Mar 16 06:44:17 2026 write: IOPS=15, BW=60.4KiB/s (61.8kB/s)(10.0MiB/169625msec); 0 zone resets slat (usec): min=35, max=22668, avg=273.96, stdev=1052.54 clat (msec): min=94, max=2647, avg=1058.29, stdev=383.22 lat (msec): min=94, max=2647, avg=1058.56, stdev=383.21 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 617], 10.00th=[ 693], 20.00th=[ 785], | 30.00th=[ 852], 40.00th=[ 911], 50.00th=[ 978], 60.00th=[ 1045], | 70.00th=[ 1116], 80.00th=[ 1250], 90.00th=[ 1569], 95.00th=[ 1838], | 99.00th=[ 2433], 99.50th=[ 2567], 99.90th=[ 2601], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 7, max= 128, per=25.26%, avg=60.88, stdev=30.42, samples=331 iops : min= 1, max= 32, avg=14.81, stdev= 7.61, samples=331 lat (msec) : 100=0.08%, 500=1.29%, 750=14.10%, 1000=37.34%, 2000=42.93% lat (msec) : >=2000=4.26% cpu : usr=0.04%, sys=0.24%, ctx=2169, 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=241KiB/s (247kB/s), 60.4KiB/s-60.5KiB/s (61.8kB/s-61.0kB/s), io=40.0MiB (41.9MB), run=169159-169668msec 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=148742: Mon Mar 16 06:45:52 2026 read: IOPS=14, BW=59.6KiB/s (60.0kB/s)(5048KiB/84750msec) slat (usec): min=2301, max=40267, avg=11057.26, stdev=5636.66 clat (msec): min=12, max=1000, avg=333.36, stdev=91.88 lat (msec): min=23, max=1012, avg=344.43, stdev=92.63 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 209], 10.00th=[ 234], 20.00th=[ 266], | 30.00th=[ 288], 40.00th=[ 309], 50.00th=[ 334], 60.00th=[ 351], | 70.00th=[ 372], 80.00th=[ 393], 90.00th=[ 439], 95.00th=[ 472], | 99.00th=[ 550], 99.50th=[ 609], 99.90th=[ 995], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 15, max= 120, per=25.21%, avg=59.50, stdev=22.67, samples=167 iops : min= 3, max= 30, avg=14.41, stdev= 5.68, samples=167 write: IOPS=15, BW=61.3KiB/s (62.7kB/s)(5192KiB/84750msec); 0 zone resets slat (usec): min=42, max=14929, avg=348.86, stdev=919.70 clat (msec): min=162, max=1604, avg=706.17, stdev=191.50 lat (msec): min=162, max=1604, avg=706.53, stdev=191.56 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 422], 10.00th=[ 481], 20.00th=[ 542], | 30.00th=[ 592], 40.00th=[ 642], 50.00th=[ 684], 60.00th=[ 743], | 70.00th=[ 802], 80.00th=[ 869], 90.00th=[ 969], 95.00th=[ 1020], | 99.00th=[ 1150], 99.50th=[ 1334], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 7, max= 150, per=24.64%, avg=60.62, stdev=24.95, samples=168 iops : min= 1, max= 37, avg=14.70, stdev= 6.30, samples=168 lat (msec) : 20=0.12%, 50=0.12%, 100=0.31%, 250=6.76%, 500=47.30% lat (msec) : 750=25.66%, 1000=16.02%, 2000=3.71% cpu : usr=0.09%, sys=0.83%, ctx=4986, 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=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=148743: Mon Mar 16 06:45:52 2026 read: IOPS=14, BW=58.6KiB/s (60.0kB/s)(4976KiB/84862msec) slat (usec): min=60, max=43049, avg=11279.90, stdev=5932.37 clat (msec): min=50, max=616, avg=332.65, stdev=79.38 lat (msec): min=60, max=630, avg=343.93, stdev=80.31 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 211], 10.00th=[ 234], 20.00th=[ 266], | 30.00th=[ 292], 40.00th=[ 313], 50.00th=[ 334], 60.00th=[ 351], | 70.00th=[ 372], 80.00th=[ 397], 90.00th=[ 430], 95.00th=[ 468], | 99.00th=[ 535], 99.50th=[ 542], 99.90th=[ 609], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 7, max= 152, per=24.73%, avg=58.37, stdev=24.85, samples=167 iops : min= 1, max= 38, avg=14.13, stdev= 6.25, samples=167 write: IOPS=15, BW=62.0KiB/s (63.5kB/s)(5264KiB/84862msec); 0 zone resets slat (usec): min=38, max=13273, avg=325.54, stdev=803.91 clat (msec): min=157, max=1375, avg=705.28, stdev=190.82 lat (msec): min=157, max=1375, avg=705.61, stdev=190.84 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 439], 10.00th=[ 485], 20.00th=[ 542], | 30.00th=[ 600], 40.00th=[ 642], 50.00th=[ 684], 60.00th=[ 735], | 70.00th=[ 793], 80.00th=[ 877], 90.00th=[ 978], 95.00th=[ 1036], | 99.00th=[ 1133], 99.50th=[ 1284], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 16, max= 119, per=24.93%, avg=61.32, stdev=20.83, samples=168 iops : min= 4, max= 29, avg=14.87, stdev= 5.23, samples=168 lat (msec) : 100=0.31%, 250=7.50%, 500=46.33%, 750=27.07%, 1000=15.08% lat (msec) : 2000=3.71% cpu : usr=0.12%, sys=0.87%, ctx=5048, 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=148744: Mon Mar 16 06:45:52 2026 read: IOPS=14, BW=58.7KiB/s (60.1kB/s)(4984KiB/84905msec) slat (usec): min=2552, max=43902, avg=11560.98, stdev=5927.59 clat (msec): min=19, max=589, avg=328.15, stdev=77.24 lat (msec): min=25, max=615, avg=339.72, stdev=78.26 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 211], 10.00th=[ 236], 20.00th=[ 266], | 30.00th=[ 292], 40.00th=[ 313], 50.00th=[ 330], 60.00th=[ 347], | 70.00th=[ 363], 80.00th=[ 388], 90.00th=[ 422], 95.00th=[ 451], | 99.00th=[ 518], 99.50th=[ 542], 99.90th=[ 584], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 15, max= 128, per=24.71%, avg=58.31, stdev=25.02, samples=167 iops : min= 3, max= 32, avg=14.12, stdev= 6.24, samples=167 write: IOPS=15, BW=61.9KiB/s (63.4kB/s)(5256KiB/84905msec); 0 zone resets slat (usec): min=39, max=10199, avg=304.32, stdev=735.87 clat (msec): min=95, max=1363, avg=708.44, stdev=197.37 lat (msec): min=95, max=1364, avg=708.75, stdev=197.41 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 422], 10.00th=[ 481], 20.00th=[ 542], | 30.00th=[ 600], 40.00th=[ 651], 50.00th=[ 693], 60.00th=[ 751], | 70.00th=[ 810], 80.00th=[ 877], 90.00th=[ 986], 95.00th=[ 1036], | 99.00th=[ 1150], 99.50th=[ 1301], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 15, max= 136, per=24.65%, avg=60.64, stdev=21.46, samples=168 iops : min= 3, max= 34, avg=14.70, stdev= 5.44, samples=168 lat (msec) : 20=0.04%, 50=0.16%, 100=0.23%, 250=7.38%, 500=46.52% lat (msec) : 750=24.96%, 1000=16.52%, 2000=4.18% cpu : usr=0.10%, sys=0.77%, ctx=4867, 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=148745: Mon Mar 16 06:45:52 2026 read: IOPS=14, BW=59.7KiB/s (61.1kB/s)(5060KiB/84765msec) slat (usec): min=2456, max=47546, avg=11274.35, stdev=5995.35 clat (msec): min=12, max=744, avg=331.59, stdev=80.51 lat (msec): min=20, max=748, avg=342.88, stdev=81.18 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 211], 10.00th=[ 232], 20.00th=[ 266], | 30.00th=[ 292], 40.00th=[ 313], 50.00th=[ 330], 60.00th=[ 351], | 70.00th=[ 368], 80.00th=[ 397], 90.00th=[ 430], 95.00th=[ 468], | 99.00th=[ 542], 99.50th=[ 592], 99.90th=[ 634], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 7, max= 128, per=25.22%, avg=59.53, stdev=24.39, samples=167 iops : min= 1, max= 32, avg=14.41, stdev= 6.11, samples=167 write: IOPS=15, BW=61.1KiB/s (62.6kB/s)(5180KiB/84765msec); 0 zone resets slat (usec): min=39, max=21289, avg=306.69, stdev=866.86 clat (msec): min=117, max=1325, avg=709.17, stdev=190.28 lat (msec): min=119, max=1325, avg=709.48, stdev=190.34 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 426], 10.00th=[ 477], 20.00th=[ 542], | 30.00th=[ 592], 40.00th=[ 642], 50.00th=[ 701], 60.00th=[ 751], | 70.00th=[ 802], 80.00th=[ 877], 90.00th=[ 986], 95.00th=[ 1028], | 99.00th=[ 1116], 99.50th=[ 1167], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 7, max= 126, per=24.67%, avg=60.69, stdev=20.02, samples=167 iops : min= 1, max= 31, avg=14.71, stdev= 5.06, samples=167 lat (msec) : 20=0.04%, 100=0.16%, 250=7.81%, 500=46.56%, 750=25.70% lat (msec) : 1000=15.31%, 2000=4.41% cpu : usr=0.11%, sys=0.85%, ctx=5180, 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=236KiB/s (242kB/s), 58.6KiB/s-59.7KiB/s (60.0kB/s-61.1kB/s), io=19.6MiB (20.5MB), run=84750-84905msec WRITE: bw=246KiB/s (252kB/s), 61.1KiB/s-62.0KiB/s (62.6kB/s-63.5kB/s), io=20.4MiB (21.4MB), run=84750-84905msec 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=148762: Mon Mar 16 06:46:00 2026 read: IOPS=1, BW=79.4MiB/s (83.2MB/s)(40.0MiB/504msec) slat (nsec): min=35073k, max=35073k, avg=35073311.00, stdev= 0.00 clat (nsec): min=442027k, max=442027k, avg=442026702.00, stdev= 0.00 lat (nsec): min=477105k, max=477105k, avg=477104805.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 443], | 70.00th=[ 443], 80.00th=[ 443], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.99%, ctx=43, 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=79.4MiB/s (83.2MB/s), 79.4MiB/s-79.4MiB/s (83.2MB/s-83.2MB/s), io=40.0MiB (41.9MB), run=504-504msec 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