== sanity test 398c: run fio to test AIO ================= 23:13:24 (1781234004) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.667144 s, 62.9 MB/s osc.lustre-OST0000-osc-ffff999d1d63b800.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=145833: Thu Jun 11 23:16:21 2026 write: IOPS=15, BW=62.5KiB/s (63.0kB/s)(10.0MiB/163913msec); 0 zone resets slat (usec): min=39, max=23342, avg=332.81, stdev=1058.05 clat (msec): min=293, max=1988, avg=1022.71, stdev=252.19 lat (msec): min=294, max=1988, avg=1023.04, stdev=252.21 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 684], 10.00th=[ 735], 20.00th=[ 818], | 30.00th=[ 877], 40.00th=[ 936], 50.00th=[ 995], 60.00th=[ 1045], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1351], 95.00th=[ 1485], | 99.00th=[ 1787], 99.50th=[ 1854], 99.90th=[ 1972], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 127, per=25.28%, avg=62.94, stdev=25.71, samples=319 iops : min= 1, max= 31, avg=15.19, stdev= 6.45, samples=319 lat (msec) : 500=0.62%, 750=10.43%, 1000=40.12%, 2000=48.83% cpu : usr=0.05%, sys=0.32%, ctx=1806, 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=145834: Thu Jun 11 23:16:21 2026 write: IOPS=15, BW=62.5KiB/s (63.0kB/s)(10.0MiB/163916msec); 0 zone resets slat (usec): min=36, max=16257, avg=329.75, stdev=951.57 clat (msec): min=187, max=2037, avg=1023.62, stdev=257.63 lat (msec): min=188, max=2037, avg=1023.96, stdev=257.60 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 667], 10.00th=[ 735], 20.00th=[ 818], | 30.00th=[ 877], 40.00th=[ 936], 50.00th=[ 995], 60.00th=[ 1053], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1351], 95.00th=[ 1502], | 99.00th=[ 1804], 99.50th=[ 1905], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 128, per=25.18%, avg=62.70, stdev=27.46, samples=320 iops : min= 1, max= 32, avg=15.14, stdev= 6.91, samples=320 lat (msec) : 250=0.31%, 500=0.55%, 750=10.62%, 1000=38.75%, 2000=49.61% lat (msec) : >=2000=0.16% cpu : usr=0.06%, sys=0.35%, ctx=1963, 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=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=145835: Thu Jun 11 23:16:21 2026 write: IOPS=15, BW=62.8KiB/s (64.3kB/s)(10.0MiB/163172msec); 0 zone resets slat (usec): min=42, max=21602, avg=338.22, stdev=1045.18 clat (msec): min=324, max=2043, avg=1018.39, stdev=256.62 lat (msec): min=324, max=2043, avg=1018.73, stdev=256.61 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 676], 10.00th=[ 735], 20.00th=[ 810], | 30.00th=[ 877], 40.00th=[ 936], 50.00th=[ 986], 60.00th=[ 1053], | 70.00th=[ 1116], 80.00th=[ 1200], 90.00th=[ 1334], 95.00th=[ 1469], | 99.00th=[ 1838], 99.50th=[ 1972], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 128, per=26.28%, avg=65.43, stdev=27.69, samples=307 iops : min= 1, max= 32, avg=15.82, stdev= 6.97, samples=307 lat (msec) : 500=1.33%, 750=10.55%, 1000=39.92%, 2000=47.81%, >=2000=0.39% cpu : usr=0.05%, sys=0.32%, ctx=1950, 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=145836: Thu Jun 11 23:16:21 2026 write: IOPS=15, BW=62.5KiB/s (63.0kB/s)(10.0MiB/163909msec); 0 zone resets slat (usec): min=37, max=26384, avg=352.75, stdev=1058.53 clat (msec): min=259, max=1980, avg=1022.58, stdev=252.44 lat (msec): min=259, max=1980, avg=1022.94, stdev=252.43 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 684], 10.00th=[ 735], 20.00th=[ 818], | 30.00th=[ 877], 40.00th=[ 936], 50.00th=[ 986], 60.00th=[ 1053], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1351], 95.00th=[ 1502], | 99.00th=[ 1737], 99.50th=[ 1838], 99.90th=[ 1938], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 128, per=25.19%, avg=62.73, stdev=25.33, samples=320 iops : min= 1, max= 32, avg=15.15, stdev= 6.37, samples=320 lat (msec) : 500=0.62%, 750=10.78%, 1000=40.51%, 2000=48.09% cpu : usr=0.05%, sys=0.34%, ctx=1993, 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=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=250KiB/s (256kB/s), 62.5KiB/s-62.8KiB/s (63.0kB/s-64.3kB/s), io=40.0MiB (41.9MB), run=163172-163916msec 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=145870: Thu Jun 11 23:18:12 2026 read: IOPS=12, BW=50.2KiB/s (51.4kB/s)(5048KiB/100649msec) slat (usec): min=82, max=53824, avg=14821.58, stdev=8224.29 clat (msec): min=17, max=940, avg=390.24, stdev=116.12 lat (msec): min=19, max=960, avg=405.06, stdev=117.88 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 245], 10.00th=[ 275], 20.00th=[ 309], | 30.00th=[ 334], 40.00th=[ 355], 50.00th=[ 376], 60.00th=[ 397], | 70.00th=[ 426], 80.00th=[ 460], 90.00th=[ 518], 95.00th=[ 609], | 99.00th=[ 776], 99.50th=[ 860], 99.90th=[ 894], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 127, per=25.21%, avg=49.91, stdev=22.75, samples=198 iops : min= 1, max= 31, avg=12.00, stdev= 5.71, samples=198 write: IOPS=12, BW=51.6KiB/s (52.8kB/s)(5192KiB/100649msec); 0 zone resets slat (usec): min=44, max=15996, avg=409.95, stdev=963.55 clat (msec): min=176, max=1869, avg=845.26, stdev=218.85 lat (msec): min=176, max=1870, avg=845.67, stdev=218.86 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 510], 10.00th=[ 575], 20.00th=[ 676], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 835], 60.00th=[ 885], | 70.00th=[ 936], 80.00th=[ 1011], 90.00th=[ 1099], 95.00th=[ 1183], | 99.00th=[ 1569], 99.50th=[ 1653], 99.90th=[ 1804], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 112, per=24.96%, avg=51.43, stdev=21.46, samples=197 iops : min= 1, max= 28, avg=12.38, stdev= 5.38, samples=197 lat (msec) : 20=0.08%, 50=0.20%, 100=0.35%, 250=2.50%, 500=42.38% lat (msec) : 750=18.91%, 1000=24.88%, 2000=10.70% cpu : usr=0.12%, sys=0.88%, ctx=4732, 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=145871: Thu Jun 11 23:18:12 2026 read: IOPS=12, BW=49.2KiB/s (50.4kB/s)(4976KiB/101182msec) slat (usec): min=2855, max=59441, avg=14956.74, stdev=8159.55 clat (msec): min=6, max=807, avg=389.96, stdev=110.45 lat (msec): min=26, max=826, avg=404.92, stdev=112.21 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 249], 10.00th=[ 271], 20.00th=[ 305], | 30.00th=[ 330], 40.00th=[ 355], 50.00th=[ 376], 60.00th=[ 397], | 70.00th=[ 430], 80.00th=[ 464], 90.00th=[ 523], 95.00th=[ 600], | 99.00th=[ 751], 99.50th=[ 760], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 7, max= 151, per=24.57%, avg=48.65, stdev=21.71, samples=200 iops : min= 1, max= 37, avg=11.67, stdev= 5.43, samples=200 write: IOPS=13, BW=52.0KiB/s (53.3kB/s)(5264KiB/101182msec); 0 zone resets slat (usec): min=43, max=19603, avg=412.75, stdev=1049.52 clat (msec): min=349, max=1808, avg=844.68, stdev=209.23 lat (msec): min=349, max=1809, avg=845.09, stdev=209.18 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 518], 10.00th=[ 584], 20.00th=[ 667], | 30.00th=[ 743], 40.00th=[ 802], 50.00th=[ 852], 60.00th=[ 894], | 70.00th=[ 944], 80.00th=[ 1003], 90.00th=[ 1083], 95.00th=[ 1167], | 99.00th=[ 1502], 99.50th=[ 1586], 99.90th=[ 1804], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 7, max= 110, per=25.24%, avg=51.99, stdev=20.68, samples=198 iops : min= 1, max= 27, avg=12.52, stdev= 5.22, samples=198 lat (msec) : 10=0.04%, 50=0.20%, 100=0.23%, 250=2.23%, 500=41.80% lat (msec) : 750=19.80%, 1000=25.74%, 2000=9.96% cpu : usr=0.12%, sys=0.88%, ctx=4912, 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=145872: Thu Jun 11 23:18:12 2026 read: IOPS=12, BW=49.3KiB/s (50.4kB/s)(4984KiB/101185msec) slat (usec): min=3402, max=61806, avg=15364.80, stdev=8114.03 clat (msec): min=7, max=805, avg=388.62, stdev=102.60 lat (msec): min=17, max=828, avg=403.99, stdev=104.01 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 249], 10.00th=[ 275], 20.00th=[ 309], | 30.00th=[ 338], 40.00th=[ 359], 50.00th=[ 376], 60.00th=[ 397], | 70.00th=[ 426], 80.00th=[ 460], 90.00th=[ 518], 95.00th=[ 575], | 99.00th=[ 709], 99.50th=[ 760], 99.90th=[ 802], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 7, max= 119, per=24.88%, avg=49.26, stdev=21.79, samples=198 iops : min= 1, max= 29, avg=11.83, stdev= 5.48, samples=198 write: IOPS=12, BW=51.9KiB/s (53.2kB/s)(5256KiB/101185msec); 0 zone resets slat (usec): min=43, max=14937, avg=397.14, stdev=930.24 clat (msec): min=175, max=1846, avg=845.95, stdev=214.27 lat (msec): min=176, max=1848, avg=846.34, stdev=214.28 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 518], 10.00th=[ 584], 20.00th=[ 676], | 30.00th=[ 735], 40.00th=[ 785], 50.00th=[ 835], 60.00th=[ 885], | 70.00th=[ 944], 80.00th=[ 1011], 90.00th=[ 1116], 95.00th=[ 1183], | 99.00th=[ 1519], 99.50th=[ 1703], 99.90th=[ 1821], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 112, per=24.92%, avg=51.33, stdev=19.25, samples=199 iops : min= 1, max= 28, avg=12.35, stdev= 4.87, samples=199 lat (msec) : 10=0.04%, 50=0.08%, 100=0.23%, 250=2.38%, 500=41.88% lat (msec) : 750=20.20%, 1000=24.49%, 2000=10.70% cpu : usr=0.14%, sys=0.93%, ctx=5063, 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=145873: Thu Jun 11 23:18:12 2026 read: IOPS=12, BW=50.0KiB/s (51.2kB/s)(5060KiB/101182msec) slat (usec): min=2810, max=57316, avg=14746.78, stdev=7977.39 clat (msec): min=19, max=788, avg=385.66, stdev=100.48 lat (msec): min=36, max=807, avg=400.42, stdev=101.71 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 247], 10.00th=[ 275], 20.00th=[ 309], | 30.00th=[ 334], 40.00th=[ 355], 50.00th=[ 376], 60.00th=[ 397], | 70.00th=[ 422], 80.00th=[ 456], 90.00th=[ 510], 95.00th=[ 567], | 99.00th=[ 709], 99.50th=[ 726], 99.90th=[ 776], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 7, max= 120, per=25.24%, avg=49.97, stdev=22.24, samples=198 iops : min= 1, max= 30, avg=12.02, stdev= 5.62, samples=198 write: IOPS=12, BW=51.2KiB/s (52.4kB/s)(5180KiB/101182msec); 0 zone resets slat (usec): min=60, max=13561, avg=427.91, stdev=1026.28 clat (msec): min=336, max=1837, avg=855.59, stdev=216.76 lat (msec): min=336, max=1838, avg=856.02, stdev=216.78 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 531], 10.00th=[ 600], 20.00th=[ 676], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 894], | 70.00th=[ 953], 80.00th=[ 1011], 90.00th=[ 1099], 95.00th=[ 1167], | 99.00th=[ 1687], 99.50th=[ 1787], 99.90th=[ 1821], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 8, max= 104, per=24.53%, avg=50.53, stdev=18.84, samples=200 iops : min= 2, max= 26, avg=12.16, stdev= 4.74, samples=200 lat (msec) : 20=0.04%, 50=0.12%, 100=0.23%, 250=2.42%, 500=42.50% lat (msec) : 750=19.49%, 1000=24.18%, 2000=11.02% cpu : usr=0.11%, sys=0.92%, ctx=4784, 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=198KiB/s (203kB/s), 49.2KiB/s-50.2KiB/s (50.4kB/s-51.4kB/s), io=19.6MiB (20.5MB), run=100649-101185msec WRITE: bw=206KiB/s (211kB/s), 51.2KiB/s-52.0KiB/s (52.4kB/s-53.3kB/s), io=20.4MiB (21.4MB), run=100649-101185msec 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=145892: Thu Jun 11 23:18:24 2026 read: IOPS=1, BW=72.0MiB/s (76.5MB/s)(40.0MiB/548msec) slat (nsec): min=41767k, max=41767k, avg=41766655.00, stdev= 0.00 clat (nsec): min=485615k, max=485615k, avg=485615422.00, stdev= 0.00 lat (nsec): min=527386k, max=527386k, avg=527386320.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 485], 50.00th=[ 485], 60.00th=[ 485], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 485], 95.00th=[ 485], | 99.00th=[ 485], 99.50th=[ 485], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.01%, ctx=25, majf=0, minf=7 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=72.0MiB/s (76.5MB/s), 72.0MiB/s-72.0MiB/s (76.5MB/s-76.5MB/s), io=40.0MiB (41.9MB), run=548-548msec 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