== sanity test 398c: run fio to test AIO ================= 17:26:03 (1781213163) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 1.32271 s, 31.7 MB/s osc.lustre-OST0000-osc-ffff92a4d8a67000.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=146154: Thu Jun 11 17:29:16 2026 write: IOPS=14, BW=57.4KiB/s (58.8kB/s)(10.0MiB/178405msec); 0 zone resets slat (usec): min=37, max=29126, avg=286.96, stdev=1049.25 clat (msec): min=253, max=2931, avg=1113.88, stdev=388.42 lat (msec): min=253, max=2931, avg=1114.17, stdev=388.42 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 600], 10.00th=[ 684], 20.00th=[ 793], | 30.00th=[ 894], 40.00th=[ 969], 50.00th=[ 1070], 60.00th=[ 1167], | 70.00th=[ 1250], 80.00th=[ 1385], 90.00th=[ 1586], 95.00th=[ 1838], | 99.00th=[ 2433], 99.50th=[ 2601], 99.90th=[ 2769], 99.95th=[ 2937], | 99.99th=[ 2937] bw ( KiB/s): min= 7, max= 139, per=26.93%, avg=61.67, stdev=33.43, samples=326 iops : min= 1, max= 34, avg=14.93, stdev= 8.39, samples=326 lat (msec) : 500=2.15%, 750=13.95%, 1000=27.54%, 2000=53.09%, >=2000=3.28% cpu : usr=0.03%, sys=0.23%, ctx=1680, 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=146155: Thu Jun 11 17:29:16 2026 write: IOPS=14, BW=57.4KiB/s (58.8kB/s)(10.0MiB/178261msec); 0 zone resets slat (usec): min=37, max=14155, avg=287.10, stdev=862.13 clat (msec): min=281, max=2959, avg=1112.62, stdev=381.47 lat (msec): min=282, max=2960, avg=1112.91, stdev=381.48 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 617], 10.00th=[ 701], 20.00th=[ 802], | 30.00th=[ 894], 40.00th=[ 969], 50.00th=[ 1036], 60.00th=[ 1150], | 70.00th=[ 1250], 80.00th=[ 1385], 90.00th=[ 1569], 95.00th=[ 1854], | 99.00th=[ 2265], 99.50th=[ 2735], 99.90th=[ 2903], 99.95th=[ 2970], | 99.99th=[ 2970] bw ( KiB/s): min= 7, max= 144, per=25.67%, avg=58.78, stdev=29.97, samples=342 iops : min= 1, max= 36, avg=14.21, stdev= 7.55, samples=342 lat (msec) : 500=1.48%, 750=13.40%, 1000=29.22%, 2000=53.01%, >=2000=2.89% cpu : usr=0.04%, sys=0.27%, ctx=1988, 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=146156: Thu Jun 11 17:29:16 2026 write: IOPS=14, BW=57.6KiB/s (58.0kB/s)(10.0MiB/177866msec); 0 zone resets slat (usec): min=36, max=28256, avg=325.35, stdev=1156.91 clat (msec): min=207, max=2829, avg=1110.86, stdev=383.53 lat (msec): min=207, max=2830, avg=1111.19, stdev=383.51 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 609], 10.00th=[ 676], 20.00th=[ 802], | 30.00th=[ 894], 40.00th=[ 986], 50.00th=[ 1053], 60.00th=[ 1150], | 70.00th=[ 1250], 80.00th=[ 1368], 90.00th=[ 1586], 95.00th=[ 1854], | 99.00th=[ 2366], 99.50th=[ 2601], 99.90th=[ 2702], 99.95th=[ 2836], | 99.99th=[ 2836] bw ( KiB/s): min= 7, max= 136, per=26.46%, avg=60.58, stdev=31.06, samples=332 iops : min= 1, max= 34, avg=14.67, stdev= 7.80, samples=332 lat (msec) : 250=0.62%, 500=1.02%, 750=14.84%, 1000=25.90%, 2000=54.61% lat (msec) : >=2000=3.01% cpu : usr=0.04%, sys=0.26%, ctx=1985, 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=146157: Thu Jun 11 17:29:16 2026 write: IOPS=14, BW=57.4KiB/s (58.8kB/s)(10.0MiB/178410msec); 0 zone resets slat (usec): min=36, max=16042, avg=286.65, stdev=970.33 clat (msec): min=379, max=3082, avg=1113.41, stdev=386.55 lat (msec): min=379, max=3083, avg=1113.70, stdev=386.58 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 609], 10.00th=[ 676], 20.00th=[ 785], | 30.00th=[ 911], 40.00th=[ 969], 50.00th=[ 1045], 60.00th=[ 1150], | 70.00th=[ 1267], 80.00th=[ 1385], 90.00th=[ 1586], 95.00th=[ 1804], | 99.00th=[ 2333], 99.50th=[ 2702], 99.90th=[ 2836], 99.95th=[ 3071], | 99.99th=[ 3071] bw ( KiB/s): min= 7, max= 155, per=26.69%, avg=61.13, stdev=29.48, samples=329 iops : min= 1, max= 38, avg=14.80, stdev= 7.41, samples=329 lat (msec) : 500=1.56%, 750=15.12%, 1000=27.77%, 2000=52.42%, >=2000=3.12% cpu : usr=0.04%, sys=0.25%, ctx=1922, 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 Run status group 0 (all jobs): WRITE: bw=230KiB/s (235kB/s), 57.4KiB/s-57.6KiB/s (58.8kB/s-58.0kB/s), io=40.0MiB (41.9MB), run=177866-178410msec 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=146193: Thu Jun 11 17:31:08 2026 read: IOPS=12, BW=49.7KiB/s (50.8kB/s)(5048KiB/101663msec) slat (usec): min=81, max=73674, avg=14411.61, stdev=8882.43 clat (msec): min=9, max=1017, avg=399.85, stdev=131.69 lat (msec): min=21, max=1044, avg=414.27, stdev=133.84 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 224], 10.00th=[ 262], 20.00th=[ 305], | 30.00th=[ 334], 40.00th=[ 359], 50.00th=[ 384], 60.00th=[ 414], | 70.00th=[ 443], 80.00th=[ 477], 90.00th=[ 550], 95.00th=[ 634], | 99.00th=[ 869], 99.50th=[ 927], 99.90th=[ 986], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 8, max= 136, per=25.39%, avg=49.52, stdev=24.17, samples=200 iops : min= 2, max= 34, avg=11.90, stdev= 6.07, samples=200 write: IOPS=12, BW=51.1KiB/s (52.3kB/s)(5192KiB/101663msec); 0 zone resets slat (usec): min=39, max=18132, avg=325.98, stdev=971.71 clat (msec): min=213, max=1665, avg=848.49, stdev=253.21 lat (msec): min=213, max=1666, avg=848.82, stdev=253.21 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 477], 10.00th=[ 542], 20.00th=[ 625], | 30.00th=[ 701], 40.00th=[ 768], 50.00th=[ 835], 60.00th=[ 911], | 70.00th=[ 969], 80.00th=[ 1053], 90.00th=[ 1183], 95.00th=[ 1301], | 99.00th=[ 1552], 99.50th=[ 1569], 99.90th=[ 1653], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 8, max= 120, per=24.73%, avg=50.45, stdev=22.56, samples=201 iops : min= 2, max= 30, avg=12.14, stdev= 5.66, samples=201 lat (msec) : 10=0.04%, 50=0.16%, 100=0.16%, 250=3.98%, 500=40.12% lat (msec) : 750=22.46%, 1000=19.84%, 2000=13.24% cpu : usr=0.12%, sys=0.74%, ctx=4405, 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=146194: Thu Jun 11 17:31:08 2026 read: IOPS=12, BW=48.6KiB/s (49.8kB/s)(4976KiB/102392msec) slat (usec): min=2765, max=59877, avg=14272.98, stdev=8948.89 clat (msec): min=43, max=1019, avg=401.71, stdev=125.74 lat (msec): min=52, max=1038, avg=415.99, stdev=128.11 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 236], 10.00th=[ 266], 20.00th=[ 309], | 30.00th=[ 338], 40.00th=[ 363], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 443], 80.00th=[ 481], 90.00th=[ 550], 95.00th=[ 609], | 99.00th=[ 869], 99.50th=[ 944], 99.90th=[ 978], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 7, max= 119, per=24.69%, avg=48.15, stdev=24.26, samples=202 iops : min= 1, max= 29, avg=11.57, stdev= 6.07, samples=202 write: IOPS=12, BW=51.4KiB/s (52.6kB/s)(5264KiB/102392msec); 0 zone resets slat (usec): min=40, max=7865, avg=288.13, stdev=600.06 clat (msec): min=183, max=1728, avg=847.02, stdev=247.44 lat (msec): min=183, max=1728, avg=847.31, stdev=247.43 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 485], 10.00th=[ 531], 20.00th=[ 625], | 30.00th=[ 693], 40.00th=[ 768], 50.00th=[ 835], 60.00th=[ 902], | 70.00th=[ 961], 80.00th=[ 1045], 90.00th=[ 1167], 95.00th=[ 1267], | 99.00th=[ 1536], 99.50th=[ 1586], 99.90th=[ 1653], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 7, max= 119, per=25.08%, avg=51.17, stdev=22.65, samples=202 iops : min= 1, max= 29, avg=12.32, stdev= 5.69, samples=202 lat (msec) : 50=0.04%, 100=0.20%, 250=3.28%, 500=40.70%, 750=22.54% lat (msec) : 1000=19.61%, 2000=13.63% cpu : usr=0.09%, sys=0.62%, ctx=4423, 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=146195: Thu Jun 11 17:31:08 2026 read: IOPS=12, BW=48.7KiB/s (49.9kB/s)(4984KiB/102257msec) slat (usec): min=2697, max=62403, avg=14594.40, stdev=8692.74 clat (msec): min=27, max=955, avg=396.26, stdev=129.05 lat (msec): min=39, max=1002, avg=410.86, stdev=131.21 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 226], 10.00th=[ 257], 20.00th=[ 300], | 30.00th=[ 330], 40.00th=[ 359], 50.00th=[ 384], 60.00th=[ 409], | 70.00th=[ 435], 80.00th=[ 472], 90.00th=[ 550], 95.00th=[ 625], | 99.00th=[ 860], 99.50th=[ 911], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 135, per=25.38%, avg=49.49, stdev=23.55, samples=198 iops : min= 1, max= 33, avg=11.90, stdev= 5.87, samples=198 write: IOPS=12, BW=51.4KiB/s (52.6kB/s)(5256KiB/102257msec); 0 zone resets slat (usec): min=41, max=28466, avg=400.69, stdev=1383.02 clat (msec): min=314, max=1711, avg=849.83, stdev=245.97 lat (msec): min=315, max=1712, avg=850.23, stdev=246.02 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 493], 10.00th=[ 542], 20.00th=[ 634], | 30.00th=[ 701], 40.00th=[ 768], 50.00th=[ 835], 60.00th=[ 894], | 70.00th=[ 961], 80.00th=[ 1045], 90.00th=[ 1183], 95.00th=[ 1284], | 99.00th=[ 1536], 99.50th=[ 1569], 99.90th=[ 1703], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 7, max= 128, per=24.97%, avg=50.94, stdev=21.15, samples=202 iops : min= 1, max= 32, avg=12.26, stdev= 5.36, samples=202 lat (msec) : 50=0.23%, 100=0.20%, 250=3.59%, 500=40.47%, 750=22.73% lat (msec) : 1000=20.04%, 2000=12.73% cpu : usr=0.09%, sys=0.69%, ctx=4737, 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=146196: Thu Jun 11 17:31:08 2026 read: IOPS=12, BW=49.0KiB/s (51.2kB/s)(5060KiB/101225msec) slat (usec): min=2649, max=76385, avg=14387.28, stdev=8797.29 clat (msec): min=19, max=960, avg=392.91, stdev=128.81 lat (msec): min=24, max=1003, avg=407.31, stdev=131.29 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 218], 10.00th=[ 251], 20.00th=[ 296], | 30.00th=[ 330], 40.00th=[ 355], 50.00th=[ 376], 60.00th=[ 405], | 70.00th=[ 439], 80.00th=[ 481], 90.00th=[ 550], 95.00th=[ 617], | 99.00th=[ 827], 99.50th=[ 885], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 8, max= 120, per=25.86%, avg=50.43, stdev=21.97, samples=197 iops : min= 2, max= 30, avg=12.13, stdev= 5.53, samples=197 write: IOPS=12, BW=51.2KiB/s (52.4kB/s)(5180KiB/101225msec); 0 zone resets slat (usec): min=42, max=7293, avg=278.16, stdev=529.53 clat (msec): min=336, max=1728, avg=848.05, stdev=251.40 lat (msec): min=336, max=1728, avg=848.33, stdev=251.41 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 489], 10.00th=[ 542], 20.00th=[ 617], | 30.00th=[ 693], 40.00th=[ 768], 50.00th=[ 835], 60.00th=[ 894], | 70.00th=[ 969], 80.00th=[ 1062], 90.00th=[ 1183], 95.00th=[ 1301], | 99.00th=[ 1536], 99.50th=[ 1569], 99.90th=[ 1703], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 7, max= 120, per=24.88%, avg=50.75, stdev=20.19, samples=200 iops : min= 1, max= 30, avg=12.22, stdev= 5.07, samples=200 lat (msec) : 20=0.04%, 50=0.16%, 100=0.20%, 250=4.53%, 500=40.20% lat (msec) : 750=22.46%, 1000=19.34%, 2000=13.09% cpu : usr=0.09%, sys=0.73%, ctx=4537, 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=196KiB/s (201kB/s), 48.6KiB/s-49.0KiB/s (49.8kB/s-51.2kB/s), io=19.6MiB (20.5MB), run=101225-102392msec WRITE: bw=204KiB/s (209kB/s), 51.1KiB/s-51.4KiB/s (52.3kB/s-52.6kB/s), io=20.4MiB (21.4MB), run=101225-102392msec 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=146216: Thu Jun 11 17:31:15 2026 read: IOPS=1, BW=57.6MiB/s (60.4MB/s)(40.0MiB/694msec) slat (nsec): min=43619k, max=43619k, avg=43618854.00, stdev= 0.00 clat (nsec): min=622154k, max=622154k, avg=622153749.00, stdev= 0.00 lat (nsec): min=665777k, max=665777k, avg=665777238.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 625], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.59%, ctx=7, 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=57.6MiB/s (60.4MB/s), 57.6MiB/s-57.6MiB/s (60.4MB/s-60.4MB/s), io=40.0MiB (41.9MB), run=694-694msec 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