== sanity test 398c: run fio to test AIO ================= 11:23:18 (1789053798) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.64407 s, 65.1 MB/s osc.lustre-OST0000-osc-ffff8b911f82e000.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=144781: Thu Sep 10 11:26:08 2026 write: IOPS=15, BW=63.7KiB/s (65.2kB/s)(10.0MiB/160749msec); 0 zone resets slat (usec): min=23, max=18574, avg=191.87, stdev=850.50 clat (msec): min=153, max=2514, avg=1003.99, stdev=386.39 lat (msec): min=153, max=2514, avg=1004.19, stdev=386.38 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 456], 10.00th=[ 558], 20.00th=[ 684], | 30.00th=[ 793], 40.00th=[ 869], 50.00th=[ 961], 60.00th=[ 1036], | 70.00th=[ 1150], 80.00th=[ 1301], 90.00th=[ 1569], 95.00th=[ 1720], | 99.00th=[ 2106], 99.50th=[ 2366], 99.90th=[ 2467], 99.95th=[ 2467], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 256, per=26.07%, avg=66.21, stdev=33.77, samples=304 iops : min= 1, max= 64, avg=16.09, stdev= 8.49, samples=304 lat (msec) : 250=1.25%, 500=5.59%, 750=18.24%, 1000=29.73%, 2000=43.95% lat (msec) : >=2000=1.25% cpu : usr=0.04%, sys=0.22%, ctx=2012, 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=144782: Thu Sep 10 11:26:08 2026 write: IOPS=15, BW=63.6KiB/s (65.1kB/s)(10.0MiB/161083msec); 0 zone resets slat (usec): min=23, max=19625, avg=184.63, stdev=795.99 clat (msec): min=206, max=2417, avg=1005.81, stdev=376.48 lat (msec): min=206, max=2417, avg=1005.99, stdev=376.50 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 464], 10.00th=[ 575], 20.00th=[ 701], | 30.00th=[ 802], 40.00th=[ 885], 50.00th=[ 961], 60.00th=[ 1020], | 70.00th=[ 1116], 80.00th=[ 1267], 90.00th=[ 1586], 95.00th=[ 1720], | 99.00th=[ 1955], 99.50th=[ 2232], 99.90th=[ 2400], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 256, per=25.98%, avg=65.98, stdev=37.14, samples=305 iops : min= 1, max= 64, avg=16.03, stdev= 9.31, samples=305 lat (msec) : 250=0.62%, 500=5.70%, 750=17.58%, 1000=33.32%, 2000=41.95% lat (msec) : >=2000=0.82% cpu : usr=0.04%, sys=0.20%, ctx=1718, 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=144783: Thu Sep 10 11:26:08 2026 write: IOPS=15, BW=63.7KiB/s (65.2kB/s)(10.0MiB/160806msec); 0 zone resets slat (usec): min=23, max=17339, avg=190.93, stdev=785.00 clat (msec): min=57, max=2576, avg=1003.82, stdev=387.83 lat (msec): min=57, max=2577, avg=1004.01, stdev=387.84 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 468], 10.00th=[ 567], 20.00th=[ 693], | 30.00th=[ 793], 40.00th=[ 877], 50.00th=[ 953], 60.00th=[ 1036], | 70.00th=[ 1133], 80.00th=[ 1284], 90.00th=[ 1552], 95.00th=[ 1720], | 99.00th=[ 2140], 99.50th=[ 2265], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2567] bw ( KiB/s): min= 7, max= 256, per=25.63%, avg=65.11, stdev=36.77, samples=309 iops : min= 1, max= 64, avg=15.82, stdev= 9.25, samples=309 lat (msec) : 100=0.12%, 250=1.56%, 500=4.10%, 750=19.84%, 1000=30.00% lat (msec) : 2000=42.62%, >=2000=1.76% cpu : usr=0.04%, sys=0.20%, ctx=2088, 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=144784: Thu Sep 10 11:26:08 2026 write: IOPS=15, BW=63.6KiB/s (65.1kB/s)(10.0MiB/160971msec); 0 zone resets slat (usec): min=22, max=22922, avg=196.50, stdev=831.34 clat (msec): min=30, max=2445, avg=1005.07, stdev=383.98 lat (msec): min=31, max=2445, avg=1005.27, stdev=383.99 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 464], 10.00th=[ 575], 20.00th=[ 701], | 30.00th=[ 802], 40.00th=[ 869], 50.00th=[ 953], 60.00th=[ 1036], | 70.00th=[ 1150], 80.00th=[ 1284], 90.00th=[ 1552], 95.00th=[ 1737], | 99.00th=[ 2072], 99.50th=[ 2232], 99.90th=[ 2400], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 264, per=25.31%, avg=64.29, stdev=36.69, samples=313 iops : min= 1, max= 66, avg=15.61, stdev= 9.23, samples=313 lat (msec) : 50=0.04%, 250=1.56%, 500=4.41%, 750=18.52%, 1000=31.99% lat (msec) : 2000=42.23%, >=2000=1.25% cpu : usr=0.04%, sys=0.20%, ctx=1923, 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=254KiB/s (260kB/s), 63.6KiB/s-63.7KiB/s (65.1kB/s-65.2kB/s), io=40.0MiB (41.9MB), run=160749-161083msec 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=144817: Thu Sep 10 11:28:10 2026 read: IOPS=11, BW=45.1KiB/s (46.2kB/s)(5048KiB/111865msec) slat (usec): min=2164, max=75151, avg=14335.56, stdev=9244.53 clat (msec): min=20, max=1430, avg=431.84, stdev=144.38 lat (msec): min=36, max=1439, avg=446.18, stdev=146.26 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 224], 10.00th=[ 275], 20.00th=[ 326], | 30.00th=[ 351], 40.00th=[ 380], 50.00th=[ 409], 60.00th=[ 447], | 70.00th=[ 489], 80.00th=[ 542], 90.00th=[ 609], 95.00th=[ 676], | 99.00th=[ 793], 99.50th=[ 885], 99.90th=[ 1334], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 7, max= 168, per=25.16%, avg=44.78, stdev=24.55, samples=221 iops : min= 1, max= 42, avg=10.70, stdev= 6.18, samples=221 write: IOPS=11, BW=46.4KiB/s (47.5kB/s)(5192KiB/111865msec); 0 zone resets slat (usec): min=23, max=25141, avg=319.30, stdev=1460.60 clat (msec): min=309, max=2035, avg=941.89, stdev=293.57 lat (msec): min=309, max=2035, avg=942.22, stdev=293.59 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 514], 10.00th=[ 584], 20.00th=[ 701], | 30.00th=[ 768], 40.00th=[ 844], 50.00th=[ 911], 60.00th=[ 995], | 70.00th=[ 1070], 80.00th=[ 1183], 90.00th=[ 1334], 95.00th=[ 1469], | 99.00th=[ 1787], 99.50th=[ 1838], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 128, per=25.03%, avg=46.56, stdev=21.85, samples=218 iops : min= 1, max= 32, avg=11.14, stdev= 5.51, samples=218 lat (msec) : 50=0.16%, 100=0.04%, 250=3.36%, 500=34.34%, 750=24.14% lat (msec) : 1000=17.89%, 2000=19.96%, >=2000=0.12% cpu : usr=0.09%, sys=0.56%, ctx=4970, 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=144818: Thu Sep 10 11:28:10 2026 read: IOPS=11, BW=44.3KiB/s (45.4kB/s)(4976KiB/112268msec) slat (usec): min=2809, max=86035, avg=14445.91, stdev=9047.98 clat (msec): min=39, max=985, avg=437.66, stdev=139.92 lat (msec): min=53, max=1005, avg=452.11, stdev=141.83 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 241], 10.00th=[ 284], 20.00th=[ 317], | 30.00th=[ 355], 40.00th=[ 388], 50.00th=[ 422], 60.00th=[ 456], | 70.00th=[ 493], 80.00th=[ 558], 90.00th=[ 625], 95.00th=[ 693], | 99.00th=[ 818], 99.50th=[ 869], 99.90th=[ 978], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 144, per=24.71%, avg=43.99, stdev=23.63, samples=221 iops : min= 1, max= 36, avg=10.51, stdev= 5.95, samples=221 write: IOPS=11, BW=46.9KiB/s (48.0kB/s)(5264KiB/112268msec); 0 zone resets slat (usec): min=25, max=10582, avg=219.73, stdev=656.34 clat (msec): min=297, max=1888, avg=935.54, stdev=288.64 lat (msec): min=297, max=1888, avg=935.76, stdev=288.62 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 502], 10.00th=[ 575], 20.00th=[ 701], | 30.00th=[ 768], 40.00th=[ 844], 50.00th=[ 911], 60.00th=[ 978], | 70.00th=[ 1062], 80.00th=[ 1183], 90.00th=[ 1351], 95.00th=[ 1469], | 99.00th=[ 1703], 99.50th=[ 1754], 99.90th=[ 1821], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 7, max= 141, per=25.23%, avg=46.94, stdev=22.72, samples=220 iops : min= 1, max= 35, avg=11.25, stdev= 5.71, samples=220 lat (msec) : 50=0.16%, 100=0.12%, 250=2.70%, 500=34.18%, 750=24.96% lat (msec) : 1000=18.67%, 2000=19.22% cpu : usr=0.09%, sys=0.60%, ctx=4792, 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=144819: Thu Sep 10 11:28:10 2026 read: IOPS=11, BW=44.4KiB/s (45.5kB/s)(4984KiB/112152msec) slat (usec): min=2173, max=87435, avg=13974.49, stdev=8753.60 clat (msec): min=10, max=897, avg=431.42, stdev=135.98 lat (msec): min=14, max=945, avg=445.40, stdev=137.89 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 230], 10.00th=[ 279], 20.00th=[ 321], | 30.00th=[ 355], 40.00th=[ 384], 50.00th=[ 418], 60.00th=[ 447], | 70.00th=[ 485], 80.00th=[ 535], 90.00th=[ 625], 95.00th=[ 693], | 99.00th=[ 785], 99.50th=[ 835], 99.90th=[ 877], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 134, per=24.99%, avg=44.49, stdev=24.11, samples=220 iops : min= 1, max= 33, avg=10.64, stdev= 6.09, samples=220 write: IOPS=11, BW=46.9KiB/s (47.0kB/s)(5256KiB/112152msec); 0 zone resets slat (usec): min=26, max=32747, avg=275.64, stdev=1407.85 clat (msec): min=319, max=1890, avg=940.63, stdev=290.90 lat (msec): min=320, max=1890, avg=940.91, stdev=290.88 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 502], 10.00th=[ 584], 20.00th=[ 684], | 30.00th=[ 760], 40.00th=[ 835], 50.00th=[ 911], 60.00th=[ 995], | 70.00th=[ 1083], 80.00th=[ 1200], 90.00th=[ 1334], 95.00th=[ 1469], | 99.00th=[ 1687], 99.50th=[ 1737], 99.90th=[ 1854], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 7, max= 127, per=24.96%, avg=46.43, stdev=21.96, samples=221 iops : min= 1, max= 31, avg=11.12, stdev= 5.49, samples=221 lat (msec) : 20=0.08%, 50=0.04%, 100=0.20%, 250=3.01%, 500=35.00% lat (msec) : 750=23.95%, 1000=17.50%, 2000=20.23% cpu : usr=0.11%, sys=0.59%, ctx=4865, 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=144820: Thu Sep 10 11:28:10 2026 read: IOPS=11, BW=45.7KiB/s (46.7kB/s)(5060KiB/110833msec) slat (usec): min=55, max=63131, avg=14141.84, stdev=8888.21 clat (msec): min=20, max=1555, avg=438.47, stdev=157.90 lat (msec): min=25, max=1577, avg=452.62, stdev=160.03 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 234], 10.00th=[ 275], 20.00th=[ 321], | 30.00th=[ 355], 40.00th=[ 384], 50.00th=[ 414], 60.00th=[ 451], | 70.00th=[ 498], 80.00th=[ 550], 90.00th=[ 625], 95.00th=[ 718], | 99.00th=[ 844], 99.50th=[ 1167], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 7, max= 109, per=25.75%, avg=45.84, stdev=22.24, samples=216 iops : min= 1, max= 27, avg=10.97, stdev= 5.60, samples=216 write: IOPS=11, BW=46.7KiB/s (47.9kB/s)(5180KiB/110833msec); 0 zone resets slat (usec): min=30, max=18526, avg=258.65, stdev=1064.06 clat (msec): min=143, max=1982, avg=925.81, stdev=291.82 lat (msec): min=143, max=1982, avg=926.08, stdev=291.84 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 489], 10.00th=[ 575], 20.00th=[ 684], | 30.00th=[ 760], 40.00th=[ 827], 50.00th=[ 902], 60.00th=[ 978], | 70.00th=[ 1062], 80.00th=[ 1150], 90.00th=[ 1318], 95.00th=[ 1469], | 99.00th=[ 1754], 99.50th=[ 1854], 99.90th=[ 1989], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 119, per=25.22%, avg=46.92, stdev=21.17, samples=216 iops : min= 1, max= 29, avg=11.24, stdev= 5.34, samples=216 lat (msec) : 50=0.35%, 100=0.12%, 250=3.16%, 500=34.26%, 750=24.57% lat (msec) : 1000=18.91%, 2000=18.63% cpu : usr=0.10%, sys=0.62%, ctx=4873, 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=179KiB/s (183kB/s), 44.3KiB/s-45.7KiB/s (45.4kB/s-46.7kB/s), io=19.6MiB (20.5MB), run=110833-112268msec WRITE: bw=186KiB/s (191kB/s), 46.4KiB/s-46.9KiB/s (47.5kB/s-48.0kB/s), io=20.4MiB (21.4MB), run=110833-112268msec 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=144843: Thu Sep 10 11:28:19 2026 read: IOPS=1, BW=65.1MiB/s (68.3MB/s)(40.0MiB/614msec) slat (nsec): min=39806k, max=39806k, avg=39805577.00, stdev= 0.00 clat (nsec): min=559394k, max=559394k, avg=559394476.00, stdev= 0.00 lat (nsec): min=599206k, max=599206k, avg=599205557.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 558], 80.00th=[ 558], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.14%, 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=65.1MiB/s (68.3MB/s), 65.1MiB/s-65.1MiB/s (68.3MB/s-68.3MB/s), io=40.0MiB (41.9MB), run=614-614msec 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