== sanity test 398c: run fio to test AIO ================= 06:24:26 (1789986266) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.476828 s, 88.0 MB/s osc.lustre-OST0000-osc-ffff96ae04ce6000.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=159096: Mon Sep 21 06:27:24 2026 write: IOPS=15, BW=60.9KiB/s (62.3kB/s)(10.0MiB/168248msec); 0 zone resets slat (usec): min=22, max=18301, avg=201.72, stdev=913.17 clat (msec): min=432, max=2185, avg=1050.33, stdev=274.07 lat (msec): min=432, max=2186, avg=1050.54, stdev=274.05 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 625], 10.00th=[ 743], 20.00th=[ 818], | 30.00th=[ 902], 40.00th=[ 961], 50.00th=[ 1028], 60.00th=[ 1099], | 70.00th=[ 1167], 80.00th=[ 1267], 90.00th=[ 1401], 95.00th=[ 1536], | 99.00th=[ 1821], 99.50th=[ 1955], 99.90th=[ 2089], 99.95th=[ 2140], | 99.99th=[ 2198] bw ( KiB/s): min= 8, max= 256, per=26.33%, avg=63.99, stdev=31.94, samples=315 iops : min= 2, max= 64, avg=15.57, stdev= 8.01, samples=315 lat (msec) : 500=2.07%, 750=8.87%, 1000=35.00%, 2000=53.59%, >=2000=0.47% cpu : usr=0.05%, sys=0.20%, ctx=1670, majf=0, minf=7 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=159097: Mon Sep 21 06:27:24 2026 write: IOPS=15, BW=60.9KiB/s (62.4kB/s)(10.0MiB/168166msec); 0 zone resets slat (usec): min=22, max=13004, avg=181.11, stdev=685.36 clat (msec): min=155, max=2703, avg=1050.21, stdev=284.52 lat (msec): min=155, max=2703, avg=1050.39, stdev=284.53 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 600], 10.00th=[ 701], 20.00th=[ 818], | 30.00th=[ 911], 40.00th=[ 978], 50.00th=[ 1045], 60.00th=[ 1099], | 70.00th=[ 1167], 80.00th=[ 1267], 90.00th=[ 1401], 95.00th=[ 1552], | 99.00th=[ 1821], 99.50th=[ 2022], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2702] bw ( KiB/s): min= 7, max= 160, per=25.50%, avg=61.96, stdev=28.64, samples=325 iops : min= 1, max= 40, avg=15.04, stdev= 7.16, samples=325 lat (msec) : 250=0.04%, 500=1.88%, 750=11.72%, 1000=29.45%, 2000=56.41% lat (msec) : >=2000=0.51% cpu : usr=0.04%, sys=0.19%, ctx=1600, 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=159098: Mon Sep 21 06:27:24 2026 write: IOPS=15, BW=61.1KiB/s (62.6kB/s)(10.0MiB/167465msec); 0 zone resets slat (usec): min=24, max=27496, avg=220.61, stdev=1145.77 clat (msec): min=318, max=2186, avg=1045.45, stdev=274.25 lat (msec): min=318, max=2186, avg=1045.67, stdev=274.29 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 609], 10.00th=[ 718], 20.00th=[ 818], | 30.00th=[ 902], 40.00th=[ 969], 50.00th=[ 1036], 60.00th=[ 1099], | 70.00th=[ 1167], 80.00th=[ 1250], 90.00th=[ 1385], 95.00th=[ 1502], | 99.00th=[ 1854], 99.50th=[ 1938], 99.90th=[ 2140], 99.95th=[ 2165], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 240, per=25.21%, avg=61.25, stdev=30.81, samples=329 iops : min= 1, max= 60, avg=14.87, stdev= 7.72, samples=329 lat (msec) : 500=1.52%, 750=11.21%, 1000=32.30%, 2000=54.57%, >=2000=0.39% cpu : usr=0.05%, sys=0.19%, ctx=1452, 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=159099: Mon Sep 21 06:27:24 2026 write: IOPS=15, BW=60.9KiB/s (62.4kB/s)(10.0MiB/168166msec); 0 zone resets slat (usec): min=22, max=25869, avg=208.36, stdev=1047.83 clat (msec): min=310, max=2264, avg=1049.47, stdev=282.80 lat (msec): min=310, max=2264, avg=1049.68, stdev=282.85 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 609], 10.00th=[ 718], 20.00th=[ 818], | 30.00th=[ 902], 40.00th=[ 969], 50.00th=[ 1036], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1267], 90.00th=[ 1385], 95.00th=[ 1536], | 99.00th=[ 1871], 99.50th=[ 2106], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 256, per=25.21%, avg=61.25, stdev=31.86, samples=329 iops : min= 1, max= 64, avg=14.87, stdev= 8.00, samples=329 lat (msec) : 500=1.41%, 750=12.19%, 1000=29.80%, 2000=55.78%, >=2000=0.82% cpu : usr=0.04%, sys=0.20%, ctx=1750, 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=243KiB/s (249kB/s), 60.9KiB/s-61.1KiB/s (62.3kB/s-62.6kB/s), io=40.0MiB (41.9MB), run=167465-168248msec 3% of I/O are 1-page (PAGE_SIZE=4096), max 50% 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=159135: Mon Sep 21 06:29:26 2026 read: IOPS=11, BW=44.9KiB/s (45.0kB/s)(5048KiB/112410msec) slat (usec): min=2618, max=67426, avg=15373.99, stdev=9709.41 clat (msec): min=36, max=1361, avg=439.79, stdev=136.97 lat (msec): min=48, max=1373, avg=455.17, stdev=138.32 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 268], 10.00th=[ 296], 20.00th=[ 338], | 30.00th=[ 368], 40.00th=[ 397], 50.00th=[ 422], 60.00th=[ 451], | 70.00th=[ 489], 80.00th=[ 527], 90.00th=[ 609], 95.00th=[ 693], | 99.00th=[ 835], 99.50th=[ 1003], 99.90th=[ 1267], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 7, max= 119, per=25.18%, avg=44.81, stdev=20.75, samples=221 iops : min= 1, max= 29, avg=10.71, stdev= 5.25, samples=221 write: IOPS=11, BW=46.2KiB/s (47.3kB/s)(5192KiB/112410msec); 0 zone resets slat (usec): min=28, max=20144, avg=290.75, stdev=1170.23 clat (msec): min=353, max=2272, avg=938.71, stdev=266.78 lat (msec): min=353, max=2272, avg=939.00, stdev=266.88 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 567], 10.00th=[ 634], 20.00th=[ 726], | 30.00th=[ 802], 40.00th=[ 852], 50.00th=[ 902], 60.00th=[ 969], | 70.00th=[ 1036], 80.00th=[ 1133], 90.00th=[ 1250], 95.00th=[ 1435], | 99.00th=[ 1821], 99.50th=[ 1921], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 103, per=24.95%, avg=46.16, stdev=19.03, samples=220 iops : min= 1, max= 25, avg=11.05, stdev= 4.75, samples=220 lat (msec) : 50=0.12%, 100=0.23%, 250=1.48%, 500=35.82%, 750=22.27% lat (msec) : 1000=21.84%, 2000=18.09%, >=2000=0.16% cpu : usr=0.10%, sys=0.54%, ctx=4298, 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=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=159136: Mon Sep 21 06:29:26 2026 read: IOPS=11, BW=44.3KiB/s (45.3kB/s)(4976KiB/112443msec) slat (msec): min=2, max=534, avg=15.48, stdev=17.55 clat (msec): min=25, max=1025, avg=437.80, stdev=133.54 lat (msec): min=42, max=1034, avg=453.29, stdev=134.96 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 257], 10.00th=[ 296], 20.00th=[ 334], | 30.00th=[ 368], 40.00th=[ 393], 50.00th=[ 422], 60.00th=[ 451], | 70.00th=[ 481], 80.00th=[ 523], 90.00th=[ 609], 95.00th=[ 709], | 99.00th=[ 860], 99.50th=[ 936], 99.90th=[ 1003], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 104, per=24.78%, avg=44.11, stdev=20.46, samples=221 iops : min= 1, max= 26, avg=10.55, stdev= 5.18, samples=221 write: IOPS=11, BW=46.8KiB/s (47.9kB/s)(5264KiB/112443msec); 0 zone resets slat (usec): min=28, max=26972, avg=330.92, stdev=1440.31 clat (msec): min=262, max=1962, avg=934.77, stdev=256.95 lat (msec): min=262, max=1962, avg=935.10, stdev=256.99 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 542], 10.00th=[ 634], 20.00th=[ 735], | 30.00th=[ 793], 40.00th=[ 852], 50.00th=[ 911], 60.00th=[ 969], | 70.00th=[ 1036], 80.00th=[ 1133], 90.00th=[ 1250], 95.00th=[ 1401], | 99.00th=[ 1703], 99.50th=[ 1821], 99.90th=[ 1888], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 7, max= 110, per=24.97%, avg=46.19, stdev=20.64, samples=223 iops : min= 1, max= 27, avg=11.06, stdev= 5.21, samples=223 lat (msec) : 50=0.12%, 100=0.16%, 250=2.03%, 500=35.70%, 750=20.70% lat (msec) : 1000=23.36%, 2000=17.93% cpu : usr=0.11%, sys=0.59%, ctx=4197, 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=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=159137: Mon Sep 21 06:29:26 2026 read: IOPS=11, BW=44.5KiB/s (45.5kB/s)(4984KiB/112064msec) slat (usec): min=52, max=85608, avg=15224.47, stdev=9723.76 clat (msec): min=13, max=1405, avg=437.00, stdev=127.43 lat (msec): min=13, max=1424, avg=452.23, stdev=129.07 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 279], 10.00th=[ 309], 20.00th=[ 338], | 30.00th=[ 363], 40.00th=[ 397], 50.00th=[ 418], 60.00th=[ 447], | 70.00th=[ 489], 80.00th=[ 527], 90.00th=[ 600], 95.00th=[ 667], | 99.00th=[ 802], 99.50th=[ 919], 99.90th=[ 1011], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 7, max= 104, per=24.89%, avg=44.31, stdev=20.61, samples=221 iops : min= 1, max= 26, avg=10.59, stdev= 5.19, samples=221 write: IOPS=11, BW=46.9KiB/s (48.0kB/s)(5256KiB/112064msec); 0 zone resets slat (usec): min=29, max=16039, avg=269.94, stdev=984.88 clat (msec): min=211, max=1983, avg=934.52, stdev=258.22 lat (msec): min=211, max=1984, avg=934.79, stdev=258.18 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 550], 10.00th=[ 617], 20.00th=[ 743], | 30.00th=[ 802], 40.00th=[ 860], 50.00th=[ 902], 60.00th=[ 961], | 70.00th=[ 1028], 80.00th=[ 1133], 90.00th=[ 1267], 95.00th=[ 1418], | 99.00th=[ 1687], 99.50th=[ 1770], 99.90th=[ 1972], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 103, per=25.18%, avg=46.59, stdev=20.42, samples=220 iops : min= 1, max= 25, avg=11.16, stdev= 5.15, samples=220 lat (msec) : 20=0.12%, 50=0.16%, 100=0.08%, 250=1.13%, 500=36.13% lat (msec) : 750=20.86%, 1000=24.30%, 2000=17.23% cpu : usr=0.10%, sys=0.63%, ctx=4258, 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=159138: Mon Sep 21 06:29:26 2026 read: IOPS=11, BW=45.0KiB/s (46.1kB/s)(5060KiB/112351msec) slat (usec): min=2731, max=80341, avg=15481.80, stdev=9629.47 clat (msec): min=23, max=1145, avg=437.56, stdev=131.34 lat (msec): min=26, max=1157, avg=453.05, stdev=132.91 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 262], 10.00th=[ 296], 20.00th=[ 334], | 30.00th=[ 372], 40.00th=[ 397], 50.00th=[ 422], 60.00th=[ 451], | 70.00th=[ 481], 80.00th=[ 527], 90.00th=[ 592], 95.00th=[ 667], | 99.00th=[ 894], 99.50th=[ 961], 99.90th=[ 1116], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 126, per=25.37%, avg=45.15, stdev=21.27, samples=220 iops : min= 1, max= 31, avg=10.80, stdev= 5.36, samples=220 write: IOPS=11, BW=46.1KiB/s (47.2kB/s)(5180KiB/112351msec); 0 zone resets slat (usec): min=23, max=13346, avg=296.24, stdev=1038.25 clat (msec): min=286, max=2128, avg=941.33, stdev=261.11 lat (msec): min=286, max=2128, avg=941.64, stdev=261.17 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 567], 10.00th=[ 634], 20.00th=[ 735], | 30.00th=[ 802], 40.00th=[ 860], 50.00th=[ 911], 60.00th=[ 978], | 70.00th=[ 1036], 80.00th=[ 1150], 90.00th=[ 1267], 95.00th=[ 1401], | 99.00th=[ 1754], 99.50th=[ 1838], 99.90th=[ 1989], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 7, max= 103, per=24.86%, avg=46.00, stdev=19.59, samples=220 iops : min= 1, max= 25, avg=11.02, stdev= 4.93, samples=220 lat (msec) : 50=0.04%, 100=0.12%, 250=1.91%, 500=36.17%, 750=21.25% lat (msec) : 1000=22.11%, 2000=18.36%, >=2000=0.04% cpu : usr=0.09%, sys=0.60%, ctx=4165, 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=178KiB/s (183kB/s), 44.3KiB/s-45.0KiB/s (45.3kB/s-46.1kB/s), io=19.6MiB (20.5MB), run=112064-112443msec WRITE: bw=186KiB/s (190kB/s), 46.1KiB/s-46.9KiB/s (47.2kB/s-48.0kB/s), io=20.4MiB (21.4MB), run=112064-112443msec 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=159158: Mon Sep 21 06:29:36 2026 read: IOPS=1, BW=53.2MiB/s (55.8MB/s)(40.0MiB/752msec) slat (nsec): min=43911k, max=43911k, avg=43911119.00, stdev= 0.00 clat (nsec): min=679453k, max=679453k, avg=679453309.00, stdev= 0.00 lat (nsec): min=723368k, max=723368k, avg=723367923.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 676], | 70.00th=[ 676], 80.00th=[ 676], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] lat (msec) : 750=100.00% cpu : usr=0.13%, sys=1.33%, ctx=42, 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=53.2MiB/s (55.8MB/s), 53.2MiB/s-53.2MiB/s (55.8MB/s-55.8MB/s), io=40.0MiB (41.9MB), run=752-752msec 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