== sanity test 398c: run fio to test AIO ================= 05:51:54 (1787824314) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.478672 s, 87.6 MB/s osc.lustre-OST0000-osc-ffff9046863fb000.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=146048: Thu Aug 27 05:54:36 2026 write: IOPS=16, BW=67.3KiB/s (68.9kB/s)(10.0MiB/152098msec); 0 zone resets slat (usec): min=27, max=10765, avg=216.19, stdev=681.04 clat (msec): min=160, max=1673, avg=949.52, stdev=216.43 lat (msec): min=160, max=1673, avg=949.74, stdev=216.46 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 634], 10.00th=[ 726], 20.00th=[ 793], | 30.00th=[ 852], 40.00th=[ 894], 50.00th=[ 936], 60.00th=[ 986], | 70.00th=[ 1053], 80.00th=[ 1116], 90.00th=[ 1217], 95.00th=[ 1334], | 99.00th=[ 1502], 99.50th=[ 1536], 99.90th=[ 1636], 99.95th=[ 1653], | 99.99th=[ 1670] bw ( KiB/s): min= 7, max= 255, per=25.14%, avg=67.36, stdev=30.85, samples=299 iops : min= 1, max= 63, avg=16.38, stdev= 7.72, samples=299 lat (msec) : 250=0.62%, 500=3.12%, 750=9.61%, 1000=49.34%, 2000=37.30% cpu : usr=0.05%, sys=0.21%, ctx=1616, 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=146049: Thu Aug 27 05:54:36 2026 write: IOPS=16, BW=67.1KiB/s (68.7kB/s)(10.0MiB/152687msec); 0 zone resets slat (usec): min=28, max=17376, avg=188.43, stdev=624.34 clat (msec): min=87, max=1936, avg=953.56, stdev=221.49 lat (msec): min=87, max=1936, avg=953.75, stdev=221.46 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 617], 10.00th=[ 726], 20.00th=[ 793], | 30.00th=[ 844], 40.00th=[ 885], 50.00th=[ 944], 60.00th=[ 995], | 70.00th=[ 1045], 80.00th=[ 1116], 90.00th=[ 1234], 95.00th=[ 1351], | 99.00th=[ 1485], 99.50th=[ 1552], 99.90th=[ 1804], 99.95th=[ 1871], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 174, per=25.04%, avg=67.11, stdev=25.65, samples=300 iops : min= 1, max= 43, avg=16.32, stdev= 6.45, samples=300 lat (msec) : 100=0.08%, 250=0.86%, 500=2.11%, 750=8.87%, 1000=48.79% lat (msec) : 2000=39.30% cpu : usr=0.04%, sys=0.21%, ctx=1838, 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=146050: Thu Aug 27 05:54:36 2026 write: IOPS=16, BW=67.1KiB/s (68.7kB/s)(10.0MiB/152565msec); 0 zone resets slat (usec): min=29, max=12634, avg=215.21, stdev=709.87 clat (msec): min=174, max=1815, avg=952.43, stdev=220.28 lat (msec): min=175, max=1815, avg=952.65, stdev=220.30 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 609], 10.00th=[ 726], 20.00th=[ 793], | 30.00th=[ 844], 40.00th=[ 894], 50.00th=[ 944], 60.00th=[ 986], | 70.00th=[ 1045], 80.00th=[ 1116], 90.00th=[ 1234], 95.00th=[ 1351], | 99.00th=[ 1502], 99.50th=[ 1552], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 8, max= 207, per=25.05%, avg=67.14, stdev=26.24, samples=300 iops : min= 2, max= 51, avg=16.32, stdev= 6.62, samples=300 lat (msec) : 250=0.62%, 500=2.73%, 750=9.84%, 1000=49.41%, 2000=37.38% cpu : usr=0.05%, sys=0.22%, ctx=1857, 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=146051: Thu Aug 27 05:54:36 2026 write: IOPS=16, BW=67.1KiB/s (68.7kB/s)(10.0MiB/152682msec); 0 zone resets slat (usec): min=27, max=12702, avg=212.97, stdev=706.92 clat (msec): min=149, max=1760, avg=953.02, stdev=212.92 lat (msec): min=150, max=1760, avg=953.23, stdev=212.92 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 659], 10.00th=[ 726], 20.00th=[ 802], | 30.00th=[ 844], 40.00th=[ 894], 50.00th=[ 944], 60.00th=[ 995], | 70.00th=[ 1045], 80.00th=[ 1099], 90.00th=[ 1234], 95.00th=[ 1334], | 99.00th=[ 1469], 99.50th=[ 1552], 99.90th=[ 1620], 99.95th=[ 1636], | 99.99th=[ 1754] bw ( KiB/s): min= 7, max= 206, per=24.97%, avg=66.92, stdev=30.25, samples=301 iops : min= 1, max= 51, avg=16.27, stdev= 7.57, samples=301 lat (msec) : 250=0.62%, 500=1.91%, 750=9.88%, 1000=49.73%, 2000=37.85% cpu : usr=0.04%, sys=0.24%, ctx=2051, 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=268KiB/s (275kB/s), 67.1KiB/s-67.3KiB/s (68.7kB/s-68.9kB/s), io=40.0MiB (41.9MB), run=152098-152687msec 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=146083: Thu Aug 27 05:56:41 2026 read: IOPS=10, BW=43.0KiB/s (45.0kB/s)(5048KiB/114791msec) slat (usec): min=32, max=76438, avg=14306.02, stdev=8187.44 clat (msec): min=9, max=1030, avg=437.92, stdev=117.91 lat (msec): min=18, max=1044, avg=452.24, stdev=119.47 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 288], 10.00th=[ 313], 20.00th=[ 347], | 30.00th=[ 372], 40.00th=[ 397], 50.00th=[ 426], 60.00th=[ 451], | 70.00th=[ 481], 80.00th=[ 518], 90.00th=[ 592], 95.00th=[ 659], | 99.00th=[ 785], 99.50th=[ 885], 99.90th=[ 969], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 104, per=25.22%, avg=43.88, stdev=21.19, samples=225 iops : min= 1, max= 26, avg=10.48, stdev= 5.31, samples=225 write: IOPS=11, BW=45.2KiB/s (46.3kB/s)(5192KiB/114791msec); 0 zone resets slat (usec): min=32, max=18024, avg=215.89, stdev=795.23 clat (msec): min=242, max=1851, avg=974.12, stdev=284.53 lat (msec): min=242, max=1851, avg=974.34, stdev=284.53 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 514], 10.00th=[ 625], 20.00th=[ 743], | 30.00th=[ 818], 40.00th=[ 885], 50.00th=[ 953], 60.00th=[ 1028], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1351], 95.00th=[ 1452], | 99.00th=[ 1737], 99.50th=[ 1787], 99.90th=[ 1838], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 104, per=24.65%, avg=44.61, stdev=20.61, samples=228 iops : min= 1, max= 26, avg=10.66, stdev= 5.19, samples=228 lat (msec) : 10=0.04%, 20=0.08%, 50=0.08%, 100=0.12%, 250=0.74% lat (msec) : 500=38.09%, 750=19.84%, 1000=18.71%, 2000=22.30% cpu : usr=0.09%, sys=0.51%, ctx=4042, 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=146084: Thu Aug 27 05:56:41 2026 read: IOPS=10, BW=43.2KiB/s (44.3kB/s)(4976KiB/115147msec) slat (usec): min=2762, max=61989, avg=14225.58, stdev=8204.16 clat (msec): min=51, max=959, avg=444.51, stdev=123.02 lat (msec): min=59, max=977, avg=458.75, stdev=123.61 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 284], 10.00th=[ 313], 20.00th=[ 347], | 30.00th=[ 376], 40.00th=[ 401], 50.00th=[ 426], 60.00th=[ 451], | 70.00th=[ 485], 80.00th=[ 527], 90.00th=[ 592], 95.00th=[ 684], | 99.00th=[ 835], 99.50th=[ 894], 99.90th=[ 953], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 7, max= 120, per=24.86%, avg=43.25, stdev=21.30, samples=225 iops : min= 1, max= 30, avg=10.32, stdev= 5.38, samples=225 write: IOPS=11, BW=45.7KiB/s (46.8kB/s)(5264KiB/115147msec); 0 zone resets slat (usec): min=34, max=19596, avg=238.76, stdev=940.81 clat (msec): min=229, max=1862, avg=963.87, stdev=287.30 lat (msec): min=230, max=1862, avg=964.11, stdev=287.33 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 498], 10.00th=[ 609], 20.00th=[ 726], | 30.00th=[ 793], 40.00th=[ 877], 50.00th=[ 944], 60.00th=[ 1020], | 70.00th=[ 1099], 80.00th=[ 1217], 90.00th=[ 1351], 95.00th=[ 1435], | 99.00th=[ 1720], 99.50th=[ 1787], 99.90th=[ 1838], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 96, per=25.21%, avg=45.64, stdev=20.58, samples=226 iops : min= 1, max= 24, avg=10.92, stdev= 5.18, samples=226 lat (msec) : 100=0.08%, 250=0.70%, 500=37.62%, 750=20.62%, 1000=18.95% lat (msec) : 2000=22.03% cpu : usr=0.09%, sys=0.55%, ctx=4174, 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=146085: Thu Aug 27 05:56:41 2026 read: IOPS=10, BW=43.3KiB/s (44.3kB/s)(4984KiB/115077msec) slat (usec): min=2635, max=73834, avg=14211.19, stdev=8068.55 clat (msec): min=18, max=926, avg=441.97, stdev=122.81 lat (msec): min=27, max=933, avg=456.19, stdev=123.75 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 284], 10.00th=[ 309], 20.00th=[ 347], | 30.00th=[ 372], 40.00th=[ 397], 50.00th=[ 422], 60.00th=[ 456], | 70.00th=[ 485], 80.00th=[ 527], 90.00th=[ 609], 95.00th=[ 684], | 99.00th=[ 810], 99.50th=[ 844], 99.90th=[ 894], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 104, per=25.23%, avg=43.90, stdev=22.13, samples=223 iops : min= 1, max= 26, avg=10.48, stdev= 5.57, samples=223 write: IOPS=11, BW=45.7KiB/s (46.8kB/s)(5256KiB/115077msec); 0 zone resets slat (usec): min=30, max=12533, avg=199.17, stdev=656.34 clat (msec): min=285, max=1864, avg=965.39, stdev=286.07 lat (msec): min=285, max=1864, avg=965.60, stdev=286.10 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 510], 10.00th=[ 625], 20.00th=[ 726], | 30.00th=[ 793], 40.00th=[ 877], 50.00th=[ 936], 60.00th=[ 1011], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1368], 95.00th=[ 1452], | 99.00th=[ 1703], 99.50th=[ 1737], 99.90th=[ 1838], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 104, per=25.09%, avg=45.41, stdev=19.05, samples=226 iops : min= 1, max= 26, avg=10.86, stdev= 4.80, samples=226 lat (msec) : 20=0.04%, 50=0.04%, 100=0.20%, 250=0.66%, 500=37.73% lat (msec) : 750=20.62%, 1000=19.30%, 2000=21.41% cpu : usr=0.12%, sys=0.53%, ctx=4017, 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=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=146086: Thu Aug 27 05:56:41 2026 read: IOPS=11, BW=44.0KiB/s (45.1kB/s)(5060KiB/114964msec) slat (usec): min=2746, max=66857, avg=14299.46, stdev=8137.63 clat (msec): min=13, max=964, avg=442.48, stdev=123.11 lat (msec): min=28, max=976, avg=456.79, stdev=124.31 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 284], 10.00th=[ 313], 20.00th=[ 347], | 30.00th=[ 376], 40.00th=[ 401], 50.00th=[ 426], 60.00th=[ 456], | 70.00th=[ 485], 80.00th=[ 527], 90.00th=[ 600], 95.00th=[ 676], | 99.00th=[ 818], 99.50th=[ 877], 99.90th=[ 953], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 7, max= 128, per=25.72%, avg=44.76, stdev=21.47, samples=222 iops : min= 1, max= 32, avg=10.69, stdev= 5.42, samples=222 write: IOPS=11, BW=45.1KiB/s (46.1kB/s)(5180KiB/114964msec); 0 zone resets slat (usec): min=32, max=18087, avg=213.40, stdev=814.76 clat (msec): min=314, max=1916, avg=970.83, stdev=288.04 lat (msec): min=314, max=1916, avg=971.04, stdev=288.04 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 514], 10.00th=[ 634], 20.00th=[ 726], | 30.00th=[ 793], 40.00th=[ 869], 50.00th=[ 953], 60.00th=[ 1028], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1351], 95.00th=[ 1435], | 99.00th=[ 1754], 99.50th=[ 1804], 99.90th=[ 1854], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 7, max= 151, per=24.62%, avg=44.56, stdev=21.89, samples=227 iops : min= 1, max= 37, avg=10.65, stdev= 5.50, samples=227 lat (msec) : 20=0.04%, 50=0.12%, 100=0.20%, 250=0.74%, 500=37.30% lat (msec) : 750=21.88%, 1000=17.42%, 2000=22.30% cpu : usr=0.08%, sys=0.54%, ctx=3893, 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=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=174KiB/s (178kB/s), 43.2KiB/s-44.0KiB/s (44.3kB/s-45.1kB/s), io=19.6MiB (20.5MB), run=114791-115147msec WRITE: bw=181KiB/s (186kB/s), 45.1KiB/s-45.7KiB/s (46.1kB/s-46.8kB/s), io=20.4MiB (21.4MB), run=114791-115147msec 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=146106: Thu Aug 27 05:56:50 2026 read: IOPS=1, BW=75.5MiB/s (79.1MB/s)(40.0MiB/530msec) slat (nsec): min=53819k, max=53819k, avg=53819224.00, stdev= 0.00 clat (nsec): min=438907k, max=438907k, avg=438906830.00, stdev= 0.00 lat (nsec): min=492730k, max=492730k, avg=492730341.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 439], | 70.00th=[ 439], 80.00th=[ 439], 90.00th=[ 439], 95.00th=[ 439], | 99.00th=[ 439], 99.50th=[ 439], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.08%, ctx=5, 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=75.5MiB/s (79.1MB/s), 75.5MiB/s-75.5MiB/s (79.1MB/s-79.1MB/s), io=40.0MiB (41.9MB), run=530-530msec 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