== sanity test 398c: run fio to test AIO ================= 12:58:55 (1787763535) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.683369 s, 61.4 MB/s osc.lustre-OST0000-osc-ffff9dd100848800.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=158923: Wed Aug 26 13:02:07 2026 write: IOPS=14, BW=57.3KiB/s (58.7kB/s)(10.0MiB/178648msec); 0 zone resets slat (usec): min=22, max=20738, avg=184.54, stdev=860.22 clat (msec): min=267, max=3794, avg=1114.65, stdev=458.14 lat (msec): min=267, max=3795, avg=1114.84, stdev=458.16 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 567], 10.00th=[ 642], 20.00th=[ 751], | 30.00th=[ 844], 40.00th=[ 927], 50.00th=[ 1020], 60.00th=[ 1133], | 70.00th=[ 1250], 80.00th=[ 1401], 90.00th=[ 1770], 95.00th=[ 1989], | 99.00th=[ 2534], 99.50th=[ 2903], 99.90th=[ 3809], 99.95th=[ 3809], | 99.99th=[ 3809] bw ( KiB/s): min= 7, max= 255, per=25.93%, avg=59.37, stdev=34.04, samples=339 iops : min= 1, max= 63, avg=14.37, stdev= 8.55, samples=339 lat (msec) : 500=2.81%, 750=16.72%, 1000=28.52%, 2000=47.27%, >=2000=4.69% cpu : usr=0.03%, sys=0.18%, ctx=1694, 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=158924: Wed Aug 26 13:02:07 2026 write: IOPS=14, BW=57.3KiB/s (58.7kB/s)(10.0MiB/178759msec); 0 zone resets slat (usec): min=22, max=20301, avg=161.40, stdev=705.91 clat (msec): min=245, max=3793, avg=1115.82, stdev=454.06 lat (msec): min=245, max=3793, avg=1115.98, stdev=454.08 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 567], 10.00th=[ 642], 20.00th=[ 760], | 30.00th=[ 844], 40.00th=[ 936], 50.00th=[ 1036], 60.00th=[ 1133], | 70.00th=[ 1250], 80.00th=[ 1401], 90.00th=[ 1754], 95.00th=[ 1989], | 99.00th=[ 2601], 99.50th=[ 2869], 99.90th=[ 3540], 99.95th=[ 3809], | 99.99th=[ 3809] bw ( KiB/s): min= 7, max= 159, per=26.65%, avg=61.02, stdev=30.66, samples=330 iops : min= 1, max= 39, avg=14.78, stdev= 7.70, samples=330 lat (msec) : 250=0.62%, 500=2.46%, 750=16.17%, 1000=27.66%, 2000=48.55% lat (msec) : >=2000=4.53% cpu : usr=0.04%, sys=0.18%, ctx=1526, 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=158925: Wed Aug 26 13:02:07 2026 write: IOPS=14, BW=57.4KiB/s (58.7kB/s)(10.0MiB/178536msec); 0 zone resets slat (usec): min=23, max=17799, avg=162.07, stdev=704.08 clat (msec): min=236, max=3792, avg=1114.38, stdev=452.96 lat (msec): min=236, max=3792, avg=1114.55, stdev=453.01 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 567], 10.00th=[ 659], 20.00th=[ 751], | 30.00th=[ 835], 40.00th=[ 919], 50.00th=[ 1028], 60.00th=[ 1133], | 70.00th=[ 1234], 80.00th=[ 1435], 90.00th=[ 1720], 95.00th=[ 1989], | 99.00th=[ 2567], 99.50th=[ 2802], 99.90th=[ 3339], 99.95th=[ 3473], | 99.99th=[ 3809] bw ( KiB/s): min= 7, max= 184, per=25.48%, avg=58.35, stdev=30.13, samples=345 iops : min= 1, max= 46, avg=14.11, stdev= 7.56, samples=345 lat (msec) : 250=0.39%, 500=2.50%, 750=16.45%, 1000=27.73%, 2000=47.97% lat (msec) : >=2000=4.96% cpu : usr=0.04%, sys=0.18%, ctx=1662, 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=158926: Wed Aug 26 13:02:07 2026 write: IOPS=14, BW=57.4KiB/s (58.8kB/s)(10.0MiB/178376msec); 0 zone resets slat (usec): min=23, max=22926, avg=173.39, stdev=766.06 clat (msec): min=247, max=3791, avg=1114.20, stdev=466.10 lat (msec): min=247, max=3791, avg=1114.37, stdev=466.15 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 550], 10.00th=[ 625], 20.00th=[ 751], | 30.00th=[ 835], 40.00th=[ 919], 50.00th=[ 1028], 60.00th=[ 1116], | 70.00th=[ 1250], 80.00th=[ 1418], 90.00th=[ 1770], 95.00th=[ 2022], | 99.00th=[ 2534], 99.50th=[ 3104], 99.90th=[ 3775], 99.95th=[ 3775], | 99.99th=[ 3775] bw ( KiB/s): min= 6, max= 207, per=25.17%, avg=57.63, stdev=30.30, samples=349 iops : min= 1, max= 51, avg=13.93, stdev= 7.62, samples=349 lat (msec) : 250=0.08%, 500=3.09%, 750=16.52%, 1000=27.54%, 2000=47.66% lat (msec) : >=2000=5.12% cpu : usr=0.04%, sys=0.18%, ctx=1783, 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=229KiB/s (235kB/s), 57.3KiB/s-57.4KiB/s (58.7kB/s-58.8kB/s), io=40.0MiB (41.9MB), run=178376-178759msec 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=158972: Wed Aug 26 13:04:01 2026 read: IOPS=12, BW=48.5KiB/s (49.6kB/s)(5048KiB/104152msec) slat (usec): min=2431, max=69330, avg=14192.26, stdev=8245.63 clat (msec): min=15, max=1125, avg=403.66, stdev=132.76 lat (msec): min=20, max=1142, avg=417.85, stdev=134.80 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 239], 10.00th=[ 275], 20.00th=[ 309], | 30.00th=[ 338], 40.00th=[ 359], 50.00th=[ 380], 60.00th=[ 405], | 70.00th=[ 435], 80.00th=[ 477], 90.00th=[ 567], 95.00th=[ 667], | 99.00th=[ 869], 99.50th=[ 944], 99.90th=[ 1036], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 136, per=25.29%, avg=48.55, stdev=24.70, samples=204 iops : min= 1, max= 34, avg=11.67, stdev= 6.21, samples=204 write: IOPS=12, BW=49.8KiB/s (51.0kB/s)(5192KiB/104152msec); 0 zone resets slat (usec): min=26, max=20654, avg=222.95, stdev=862.27 clat (msec): min=156, max=1975, avg=874.72, stdev=278.12 lat (msec): min=156, max=1975, avg=874.94, stdev=278.17 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 456], 10.00th=[ 542], 20.00th=[ 667], | 30.00th=[ 735], 40.00th=[ 793], 50.00th=[ 852], 60.00th=[ 911], | 70.00th=[ 969], 80.00th=[ 1053], 90.00th=[ 1234], 95.00th=[ 1418], | 99.00th=[ 1754], 99.50th=[ 1804], 99.90th=[ 1888], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 118, per=24.67%, avg=49.35, stdev=20.38, samples=206 iops : min= 1, max= 29, avg=11.87, stdev= 5.09, samples=206 lat (msec) : 20=0.08%, 50=0.04%, 100=0.23%, 250=2.85%, 500=41.64% lat (msec) : 750=19.69%, 1000=22.85%, 2000=12.62% cpu : usr=0.12%, sys=0.63%, ctx=4863, 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=158973: Wed Aug 26 13:04:01 2026 read: IOPS=11, BW=47.8KiB/s (48.0kB/s)(4976KiB/104041msec) slat (usec): min=32, max=57735, avg=14101.29, stdev=8467.59 clat (msec): min=23, max=1050, avg=405.51, stdev=130.55 lat (msec): min=23, max=1099, avg=419.62, stdev=133.01 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 243], 10.00th=[ 279], 20.00th=[ 313], | 30.00th=[ 338], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 443], 80.00th=[ 481], 90.00th=[ 558], 95.00th=[ 634], | 99.00th=[ 860], 99.50th=[ 936], 99.90th=[ 1036], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 159, per=24.57%, avg=47.18, stdev=24.15, samples=205 iops : min= 1, max= 39, avg=11.33, stdev= 6.06, samples=205 write: IOPS=12, BW=50.6KiB/s (51.8kB/s)(5264KiB/104041msec); 0 zone resets slat (usec): min=28, max=7009, avg=173.26, stdev=386.44 clat (msec): min=129, max=1997, avg=867.31, stdev=289.19 lat (msec): min=130, max=1997, avg=867.49, stdev=289.20 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 439], 10.00th=[ 527], 20.00th=[ 651], | 30.00th=[ 726], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 902], | 70.00th=[ 961], 80.00th=[ 1053], 90.00th=[ 1234], 95.00th=[ 1418], | 99.00th=[ 1737], 99.50th=[ 1854], 99.90th=[ 1972], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 119, per=25.01%, avg=50.01, stdev=21.52, samples=205 iops : min= 1, max= 29, avg=12.04, stdev= 5.41, samples=205 lat (msec) : 50=0.23%, 100=0.20%, 250=2.81%, 500=41.48%, 750=20.08% lat (msec) : 1000=21.64%, 2000=13.55% cpu : usr=0.10%, sys=0.59%, ctx=4645, 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=158974: Wed Aug 26 13:04:01 2026 read: IOPS=11, BW=47.9KiB/s (49.1kB/s)(4984KiB/103983msec) slat (usec): min=2462, max=66564, avg=14190.46, stdev=7958.14 clat (msec): min=17, max=1126, avg=410.63, stdev=135.63 lat (msec): min=24, max=1135, avg=424.83, stdev=137.48 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 245], 10.00th=[ 284], 20.00th=[ 317], | 30.00th=[ 342], 40.00th=[ 363], 50.00th=[ 384], 60.00th=[ 414], | 70.00th=[ 443], 80.00th=[ 481], 90.00th=[ 575], 95.00th=[ 667], | 99.00th=[ 911], 99.50th=[ 953], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 104, per=25.01%, avg=48.02, stdev=21.64, samples=204 iops : min= 1, max= 26, avg=11.54, stdev= 5.43, samples=204 write: IOPS=12, BW=50.5KiB/s (51.8kB/s)(5256KiB/103983msec); 0 zone resets slat (usec): min=33, max=11205, avg=198.97, stdev=553.39 clat (msec): min=110, max=1973, avg=860.98, stdev=281.03 lat (msec): min=110, max=1973, avg=861.18, stdev=281.05 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 447], 10.00th=[ 518], 20.00th=[ 651], | 30.00th=[ 718], 40.00th=[ 776], 50.00th=[ 835], 60.00th=[ 902], | 70.00th=[ 961], 80.00th=[ 1045], 90.00th=[ 1234], 95.00th=[ 1385], | 99.00th=[ 1687], 99.50th=[ 1787], 99.90th=[ 1938], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 142, per=24.79%, avg=49.59, stdev=22.88, samples=206 iops : min= 1, max= 35, avg=11.93, stdev= 5.76, samples=206 lat (msec) : 20=0.04%, 50=0.12%, 100=0.16%, 250=2.62%, 500=41.99% lat (msec) : 750=20.43%, 1000=21.41%, 2000=13.24% cpu : usr=0.11%, sys=0.58%, ctx=4613, 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=158975: Wed Aug 26 13:04:01 2026 read: IOPS=12, BW=48.5KiB/s (49.7kB/s)(5060KiB/104251msec) slat (msec): min=2, max=514, avg=14.98, stdev=22.18 clat (msec): min=17, max=1684, avg=404.06, stdev=148.91 lat (msec): min=25, max=1687, avg=419.05, stdev=152.91 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 241], 10.00th=[ 275], 20.00th=[ 313], | 30.00th=[ 338], 40.00th=[ 359], 50.00th=[ 384], 60.00th=[ 405], | 70.00th=[ 439], 80.00th=[ 472], 90.00th=[ 558], 95.00th=[ 667], | 99.00th=[ 919], 99.50th=[ 995], 99.90th=[ 1636], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 116, per=25.32%, avg=48.62, stdev=24.17, samples=204 iops : min= 1, max= 29, avg=11.69, stdev= 6.08, samples=204 write: IOPS=12, BW=49.7KiB/s (50.9kB/s)(5180KiB/104251msec); 0 zone resets slat (usec): min=27, max=18473, avg=234.34, stdev=867.80 clat (msec): min=147, max=1982, avg=875.86, stdev=291.45 lat (msec): min=147, max=1982, avg=876.10, stdev=291.47 clat percentiles (msec): | 1.00th=[ 266], 5.00th=[ 447], 10.00th=[ 531], 20.00th=[ 651], | 30.00th=[ 726], 40.00th=[ 793], 50.00th=[ 852], 60.00th=[ 911], | 70.00th=[ 969], 80.00th=[ 1062], 90.00th=[ 1284], 95.00th=[ 1401], | 99.00th=[ 1787], 99.50th=[ 1888], 99.90th=[ 1955], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 132, per=24.52%, avg=49.04, stdev=21.47, samples=206 iops : min= 1, max= 33, avg=11.79, stdev= 5.40, samples=206 lat (msec) : 20=0.08%, 50=0.12%, 100=0.27%, 250=2.77%, 500=42.62% lat (msec) : 750=18.36%, 1000=22.34%, 2000=13.44% cpu : usr=0.10%, sys=0.67%, ctx=4778, 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=192KiB/s (197kB/s), 47.8KiB/s-48.5KiB/s (48.0kB/s-49.7kB/s), io=19.6MiB (20.5MB), run=103983-104251msec WRITE: bw=200KiB/s (205kB/s), 49.7KiB/s-50.6KiB/s (50.9kB/s-51.8kB/s), io=20.4MiB (21.4MB), run=103983-104251msec 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=158995: Wed Aug 26 13:04:11 2026 read: IOPS=1, BW=76.3MiB/s (80.0MB/s)(40.0MiB/524msec) slat (nsec): min=33094k, max=33094k, avg=33094185.00, stdev= 0.00 clat (nsec): min=481719k, max=481719k, avg=481718686.00, stdev= 0.00 lat (nsec): min=514818k, max=514818k, avg=514817585.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 481], 10.00th=[ 481], 20.00th=[ 481], | 30.00th=[ 481], 40.00th=[ 481], 50.00th=[ 481], 60.00th=[ 481], | 70.00th=[ 481], 80.00th=[ 481], 90.00th=[ 481], 95.00th=[ 481], | 99.00th=[ 481], 99.50th=[ 481], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.49%, ctx=28, 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=76.3MiB/s (80.0MB/s), 76.3MiB/s-76.3MiB/s (80.0MB/s-80.0MB/s), io=40.0MiB (41.9MB), run=524-524msec 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