== sanity test 398c: run fio to test AIO ================= 20:51:18 (1789433478) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.646885 s, 64.8 MB/s osc.lustre-OST0000-osc-ffff99c36c82c800.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=145007: Mon Sep 14 20:54:16 2026 write: IOPS=15, BW=61.4KiB/s (62.8kB/s)(10.0MiB/166855msec); 0 zone resets slat (usec): min=21, max=20077, avg=190.37, stdev=792.78 clat (msec): min=161, max=2445, avg=1042.32, stdev=291.41 lat (msec): min=161, max=2446, avg=1042.51, stdev=291.44 clat percentiles (msec): | 1.00th=[ 266], 5.00th=[ 600], 10.00th=[ 693], 20.00th=[ 835], | 30.00th=[ 911], 40.00th=[ 969], 50.00th=[ 1020], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1250], 90.00th=[ 1385], 95.00th=[ 1586], | 99.00th=[ 1838], 99.50th=[ 1955], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 173, per=25.41%, avg=62.00, stdev=33.86, samples=324 iops : min= 1, max= 43, avg=15.09, stdev= 8.48, samples=324 lat (msec) : 250=0.62%, 500=1.21%, 750=11.48%, 1000=32.93%, 2000=53.28% lat (msec) : >=2000=0.47% cpu : usr=0.04%, sys=0.21%, ctx=1736, 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=145008: Mon Sep 14 20:54:16 2026 write: IOPS=15, BW=61.3KiB/s (62.7kB/s)(10.0MiB/167106msec); 0 zone resets slat (usec): min=24, max=20947, avg=206.52, stdev=1015.58 clat (msec): min=211, max=2612, avg=1043.09, stdev=285.44 lat (msec): min=211, max=2612, avg=1043.30, stdev=285.43 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 609], 10.00th=[ 693], 20.00th=[ 827], | 30.00th=[ 902], 40.00th=[ 961], 50.00th=[ 1020], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1250], 90.00th=[ 1385], 95.00th=[ 1536], | 99.00th=[ 1854], 99.50th=[ 1955], 99.90th=[ 2433], 99.95th=[ 2601], | 99.99th=[ 2601] bw ( KiB/s): min= 7, max= 128, per=25.87%, avg=63.13, stdev=29.30, samples=319 iops : min= 1, max= 32, avg=15.38, stdev= 7.34, samples=319 lat (msec) : 250=0.62%, 500=0.62%, 750=12.34%, 1000=33.20%, 2000=52.85% lat (msec) : >=2000=0.35% cpu : usr=0.04%, sys=0.21%, ctx=1605, 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=145009: Mon Sep 14 20:54:16 2026 write: IOPS=15, BW=61.2KiB/s (62.7kB/s)(10.0MiB/167191msec); 0 zone resets slat (usec): min=22, max=11565, avg=163.50, stdev=562.51 clat (msec): min=53, max=2527, avg=1043.87, stdev=279.50 lat (msec): min=54, max=2527, avg=1044.04, stdev=279.48 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 634], 10.00th=[ 718], 20.00th=[ 827], | 30.00th=[ 911], 40.00th=[ 961], 50.00th=[ 1020], 60.00th=[ 1083], | 70.00th=[ 1183], 80.00th=[ 1250], 90.00th=[ 1368], 95.00th=[ 1519], | 99.00th=[ 1804], 99.50th=[ 1955], 99.90th=[ 2467], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 128, per=26.00%, avg=63.44, stdev=30.08, samples=317 iops : min= 1, max= 32, avg=15.45, stdev= 7.55, samples=317 lat (msec) : 100=0.04%, 250=0.66%, 500=0.39%, 750=11.99%, 1000=33.59% lat (msec) : 2000=52.89%, >=2000=0.43% cpu : usr=0.04%, sys=0.19%, ctx=1602, 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=145010: Mon Sep 14 20:54:16 2026 write: IOPS=15, BW=61.3KiB/s (62.8kB/s)(10.0MiB/167043msec); 0 zone resets slat (usec): min=22, max=24844, avg=212.26, stdev=896.15 clat (msec): min=75, max=2565, avg=1042.76, stdev=284.20 lat (msec): min=76, max=2565, avg=1042.98, stdev=284.16 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 600], 10.00th=[ 701], 20.00th=[ 827], | 30.00th=[ 911], 40.00th=[ 978], 50.00th=[ 1028], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1250], 90.00th=[ 1368], 95.00th=[ 1519], | 99.00th=[ 1821], 99.50th=[ 1955], 99.90th=[ 2333], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 7, max= 135, per=24.97%, avg=60.93, stdev=27.27, samples=330 iops : min= 1, max= 33, avg=14.82, stdev= 6.82, samples=330 lat (msec) : 100=0.04%, 250=0.70%, 500=1.25%, 750=10.43%, 1000=32.81% lat (msec) : 2000=54.30%, >=2000=0.47% cpu : usr=0.04%, sys=0.19%, ctx=1706, 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=245KiB/s (251kB/s), 61.2KiB/s-61.4KiB/s (62.7kB/s-62.8kB/s), io=40.0MiB (41.9MB), run=166855-167191msec 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=145043: Mon Sep 14 20:56:10 2026 read: IOPS=11, BW=47.7KiB/s (48.8kB/s)(5048KiB/105842msec) slat (usec): min=2502, max=71939, avg=14411.92, stdev=9003.59 clat (msec): min=21, max=1010, avg=406.27, stdev=124.79 lat (msec): min=29, max=1029, avg=420.68, stdev=126.86 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 234], 10.00th=[ 271], 20.00th=[ 313], | 30.00th=[ 334], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 418], | 70.00th=[ 460], 80.00th=[ 498], 90.00th=[ 567], 95.00th=[ 617], | 99.00th=[ 793], 99.50th=[ 827], 99.90th=[ 1003], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 151, per=24.99%, avg=47.24, stdev=23.01, samples=209 iops : min= 1, max= 37, avg=11.32, stdev= 5.82, samples=209 write: IOPS=12, BW=49.1KiB/s (50.2kB/s)(5192KiB/105842msec); 0 zone resets slat (usec): min=27, max=12442, avg=241.09, stdev=759.38 clat (msec): min=257, max=2108, avg=893.57, stdev=303.23 lat (msec): min=257, max=2108, avg=893.81, stdev=303.26 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 493], 10.00th=[ 558], 20.00th=[ 642], | 30.00th=[ 701], 40.00th=[ 776], 50.00th=[ 844], 60.00th=[ 911], | 70.00th=[ 1011], 80.00th=[ 1150], 90.00th=[ 1318], 95.00th=[ 1469], | 99.00th=[ 1838], 99.50th=[ 1888], 99.90th=[ 1972], 99.95th=[ 2106], | 99.99th=[ 2106] bw ( KiB/s): min= 7, max= 112, per=24.80%, avg=48.87, stdev=22.66, samples=208 iops : min= 1, max= 28, avg=11.73, stdev= 5.71, samples=208 lat (msec) : 50=0.12%, 100=0.20%, 250=3.16%, 500=39.10%, 750=24.53% lat (msec) : 1000=17.23%, 2000=15.62%, >=2000=0.04% cpu : usr=0.09%, sys=0.56%, ctx=4367, 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=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=145044: Mon Sep 14 20:56:10 2026 read: IOPS=11, BW=47.0KiB/s (48.2kB/s)(4976KiB/105778msec) slat (usec): min=2754, max=63165, avg=14297.68, stdev=8338.07 clat (msec): min=12, max=1057, avg=404.26, stdev=120.55 lat (msec): min=36, max=1064, avg=418.56, stdev=122.27 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 241], 10.00th=[ 268], 20.00th=[ 309], | 30.00th=[ 338], 40.00th=[ 363], 50.00th=[ 393], 60.00th=[ 418], | 70.00th=[ 456], 80.00th=[ 493], 90.00th=[ 558], 95.00th=[ 625], | 99.00th=[ 743], 99.50th=[ 844], 99.90th=[ 961], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 128, per=24.49%, avg=46.30, stdev=22.63, samples=210 iops : min= 1, max= 32, avg=11.09, stdev= 5.75, samples=210 write: IOPS=12, BW=49.8KiB/s (50.0kB/s)(5264KiB/105778msec); 0 zone resets slat (usec): min=27, max=15274, avg=227.02, stdev=799.61 clat (msec): min=295, max=2068, avg=888.42, stdev=297.44 lat (msec): min=295, max=2069, avg=888.65, stdev=297.43 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 481], 10.00th=[ 558], 20.00th=[ 642], | 30.00th=[ 701], 40.00th=[ 768], 50.00th=[ 835], 60.00th=[ 919], | 70.00th=[ 1003], 80.00th=[ 1133], 90.00th=[ 1318], 95.00th=[ 1452], | 99.00th=[ 1687], 99.50th=[ 1854], 99.90th=[ 1905], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 7, max= 112, per=25.01%, avg=49.27, stdev=23.66, samples=210 iops : min= 1, max= 28, avg=11.83, stdev= 5.96, samples=210 lat (msec) : 20=0.04%, 50=0.08%, 100=0.08%, 250=3.24%, 500=39.45% lat (msec) : 750=24.49%, 1000=17.03%, 2000=15.55%, >=2000=0.04% cpu : usr=0.10%, sys=0.57%, ctx=4039, majf=0, minf=17 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=145045: Mon Sep 14 20:56:10 2026 read: IOPS=11, BW=47.3KiB/s (48.5kB/s)(4984KiB/105304msec) slat (usec): min=2245, max=94281, avg=14067.57, stdev=8699.72 clat (msec): min=7, max=1013, avg=404.59, stdev=121.11 lat (msec): min=12, max=1033, avg=418.67, stdev=122.72 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 241], 10.00th=[ 275], 20.00th=[ 313], | 30.00th=[ 342], 40.00th=[ 368], 50.00th=[ 393], 60.00th=[ 414], | 70.00th=[ 460], 80.00th=[ 489], 90.00th=[ 550], 95.00th=[ 625], | 99.00th=[ 743], 99.50th=[ 776], 99.90th=[ 1003], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 120, per=25.31%, avg=47.84, stdev=21.55, samples=205 iops : min= 1, max= 30, avg=11.47, stdev= 5.43, samples=205 write: IOPS=12, BW=49.9KiB/s (51.1kB/s)(5256KiB/105304msec); 0 zone resets slat (usec): min=23, max=9759, avg=203.45, stdev=583.35 clat (msec): min=293, max=2149, avg=882.98, stdev=305.14 lat (msec): min=293, max=2149, avg=883.18, stdev=305.15 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 485], 10.00th=[ 542], 20.00th=[ 634], | 30.00th=[ 693], 40.00th=[ 768], 50.00th=[ 835], 60.00th=[ 894], | 70.00th=[ 995], 80.00th=[ 1116], 90.00th=[ 1301], 95.00th=[ 1452], | 99.00th=[ 1854], 99.50th=[ 1955], 99.90th=[ 2005], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 127, per=24.95%, avg=49.15, stdev=20.45, samples=209 iops : min= 1, max= 31, avg=11.80, stdev= 5.17, samples=209 lat (msec) : 10=0.04%, 50=0.20%, 100=0.27%, 250=2.50%, 500=40.47% lat (msec) : 750=24.14%, 1000=17.19%, 2000=15.16%, >=2000=0.04% cpu : usr=0.09%, sys=0.67%, ctx=4272, majf=0, minf=16 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=145046: Mon Sep 14 20:56:10 2026 read: IOPS=12, BW=48.0KiB/s (49.2kB/s)(5060KiB/105326msec) slat (usec): min=54, max=68957, avg=14269.72, stdev=8415.76 clat (msec): min=15, max=999, avg=406.87, stdev=122.36 lat (msec): min=16, max=1008, avg=421.15, stdev=123.81 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 245], 10.00th=[ 275], 20.00th=[ 313], | 30.00th=[ 342], 40.00th=[ 372], 50.00th=[ 397], 60.00th=[ 418], | 70.00th=[ 456], 80.00th=[ 498], 90.00th=[ 550], 95.00th=[ 617], | 99.00th=[ 768], 99.50th=[ 860], 99.90th=[ 995], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7, max= 120, per=25.39%, avg=47.98, stdev=21.48, samples=207 iops : min= 1, max= 30, avg=11.51, stdev= 5.43, samples=207 write: IOPS=12, BW=49.2KiB/s (50.4kB/s)(5180KiB/105326msec); 0 zone resets slat (usec): min=22, max=13518, avg=215.35, stdev=747.59 clat (msec): min=120, max=2134, avg=889.13, stdev=305.77 lat (msec): min=123, max=2134, avg=889.35, stdev=305.78 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 489], 10.00th=[ 558], 20.00th=[ 634], | 30.00th=[ 693], 40.00th=[ 768], 50.00th=[ 844], 60.00th=[ 911], | 70.00th=[ 1011], 80.00th=[ 1133], 90.00th=[ 1284], 95.00th=[ 1452], | 99.00th=[ 1871], 99.50th=[ 1938], 99.90th=[ 2005], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 7, max= 135, per=24.81%, avg=48.87, stdev=21.66, samples=207 iops : min= 1, max= 33, avg=11.73, stdev= 5.48, samples=207 lat (msec) : 20=0.12%, 50=0.20%, 100=0.23%, 250=2.54%, 500=39.73% lat (msec) : 750=24.61%, 1000=17.19%, 2000=15.31%, >=2000=0.08% cpu : usr=0.09%, sys=0.55%, ctx=4405, majf=0, minf=16 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=190KiB/s (194kB/s), 47.0KiB/s-48.0KiB/s (48.2kB/s-49.2kB/s), io=19.6MiB (20.5MB), run=105304-105842msec WRITE: bw=197KiB/s (202kB/s), 49.1KiB/s-49.9KiB/s (50.2kB/s-51.1kB/s), io=20.4MiB (21.4MB), run=105304-105842msec 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=145066: Mon Sep 14 20:56:20 2026 read: IOPS=1, BW=55.9MiB/s (58.7MB/s)(40.0MiB/715msec) slat (nsec): min=37894k, max=37894k, avg=37894106.00, stdev= 0.00 clat (nsec): min=656433k, max=656433k, avg=656432965.00, stdev= 0.00 lat (nsec): min=694332k, max=694332k, avg=694332014.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 659], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.54%, 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=55.9MiB/s (58.7MB/s), 55.9MiB/s-55.9MiB/s (58.7MB/s-58.7MB/s), io=40.0MiB (41.9MB), run=715-715msec 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