== sanity test 398c: run fio to test AIO ================= 09:56:05 (1788616565) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.427854 s, 98.0 MB/s osc.lustre-OST0000-osc-ffff949919115800.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=146409: Sat Sep 5 09:58:36 2026 write: IOPS=17, BW=71.9KiB/s (73.7kB/s)(10.0MiB/142362msec); 0 zone resets slat (usec): min=30, max=12238, avg=155.57, stdev=546.51 clat (msec): min=33, max=1628, avg=888.70, stdev=218.43 lat (msec): min=33, max=1628, avg=888.85, stdev=218.43 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 567], 10.00th=[ 659], 20.00th=[ 726], | 30.00th=[ 785], 40.00th=[ 835], 50.00th=[ 877], 60.00th=[ 927], | 70.00th=[ 969], 80.00th=[ 1045], 90.00th=[ 1167], 95.00th=[ 1284], | 99.00th=[ 1485], 99.50th=[ 1502], 99.90th=[ 1603], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 7, max= 216, per=24.84%, avg=71.28, stdev=30.97, samples=283 iops : min= 1, max= 54, avg=17.39, stdev= 7.76, samples=283 lat (msec) : 50=0.04%, 100=0.12%, 250=0.39%, 500=3.16%, 750=20.00% lat (msec) : 1000=50.82%, 2000=25.47% cpu : usr=0.06%, sys=0.21%, ctx=1959, 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=146410: Sat Sep 5 09:58:36 2026 write: IOPS=17, BW=71.0KiB/s (73.7kB/s)(10.0MiB/142230msec); 0 zone resets slat (usec): min=28, max=9008, avg=129.84, stdev=378.62 clat (msec): min=105, max=1690, avg=888.36, stdev=217.56 lat (msec): min=105, max=1690, avg=888.49, stdev=217.57 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 558], 10.00th=[ 667], 20.00th=[ 726], | 30.00th=[ 776], 40.00th=[ 827], 50.00th=[ 877], 60.00th=[ 927], | 70.00th=[ 978], 80.00th=[ 1053], 90.00th=[ 1150], 95.00th=[ 1267], | 99.00th=[ 1485], 99.50th=[ 1519], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 8, max= 230, per=25.18%, avg=72.27, stdev=28.93, samples=279 iops : min= 2, max= 57, avg=17.63, stdev= 7.25, samples=279 lat (msec) : 250=0.62%, 500=3.63%, 750=20.27%, 1000=49.38%, 2000=26.09% cpu : usr=0.04%, sys=0.18%, ctx=1279, 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=146411: Sat Sep 5 09:58:36 2026 write: IOPS=17, BW=71.8KiB/s (73.6kB/s)(10.0MiB/142521msec); 0 zone resets slat (usec): min=28, max=12406, avg=158.01, stdev=590.25 clat (msec): min=87, max=1600, avg=889.87, stdev=215.27 lat (msec): min=88, max=1600, avg=890.03, stdev=215.32 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 575], 10.00th=[ 667], 20.00th=[ 726], | 30.00th=[ 776], 40.00th=[ 827], 50.00th=[ 877], 60.00th=[ 927], | 70.00th=[ 986], 80.00th=[ 1062], 90.00th=[ 1167], 95.00th=[ 1267], | 99.00th=[ 1469], 99.50th=[ 1519], 99.90th=[ 1569], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 7, max= 256, per=24.93%, avg=71.54, stdev=30.60, samples=281 iops : min= 1, max= 64, avg=17.45, stdev= 7.68, samples=281 lat (msec) : 100=0.04%, 250=0.08%, 500=3.48%, 750=21.88%, 1000=48.09% lat (msec) : 2000=26.45% cpu : usr=0.05%, sys=0.21%, ctx=2116, 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=146412: Sat Sep 5 09:58:36 2026 write: IOPS=17, BW=71.8KiB/s (73.6kB/s)(10.0MiB/142519msec); 0 zone resets slat (usec): min=29, max=20466, avg=143.57, stdev=628.23 clat (msec): min=257, max=1597, avg=889.74, stdev=214.31 lat (msec): min=258, max=1597, avg=889.89, stdev=214.34 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 567], 10.00th=[ 667], 20.00th=[ 726], | 30.00th=[ 785], 40.00th=[ 835], 50.00th=[ 877], 60.00th=[ 927], | 70.00th=[ 969], 80.00th=[ 1045], 90.00th=[ 1167], 95.00th=[ 1267], | 99.00th=[ 1485], 99.50th=[ 1502], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 7, max= 256, per=25.01%, avg=71.77, stdev=30.15, samples=281 iops : min= 1, max= 64, avg=17.51, stdev= 7.57, samples=281 lat (msec) : 500=3.44%, 750=20.66%, 1000=50.59%, 2000=25.31% cpu : usr=0.03%, sys=0.21%, ctx=1591, 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=287KiB/s (294kB/s), 71.8KiB/s-71.0KiB/s (73.6kB/s-73.7kB/s), io=40.0MiB (41.9MB), run=142230-142521msec 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=146442: Sat Sep 5 10:00:29 2026 read: IOPS=12, BW=48.0KiB/s (50.1kB/s)(5048KiB/103074msec) slat (usec): min=2466, max=63013, avg=13470.29, stdev=7478.81 clat (msec): min=14, max=765, avg=399.51, stdev=95.02 lat (msec): min=21, max=773, avg=412.99, stdev=95.67 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 271], 10.00th=[ 296], 20.00th=[ 326], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 384], 60.00th=[ 409], | 70.00th=[ 443], 80.00th=[ 477], 90.00th=[ 531], 95.00th=[ 575], | 99.00th=[ 659], 99.50th=[ 709], 99.90th=[ 751], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 150, per=25.09%, avg=48.68, stdev=22.25, samples=203 iops : min= 1, max= 37, avg=11.69, stdev= 5.59, samples=203 write: IOPS=12, BW=50.4KiB/s (51.6kB/s)(5192KiB/103074msec); 0 zone resets slat (usec): min=32, max=15191, avg=189.96, stdev=735.03 clat (msec): min=354, max=1617, avg=865.87, stdev=217.47 lat (msec): min=354, max=1617, avg=866.06, stdev=217.45 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 523], 10.00th=[ 600], 20.00th=[ 693], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 902], | 70.00th=[ 961], 80.00th=[ 1036], 90.00th=[ 1167], 95.00th=[ 1284], | 99.00th=[ 1452], 99.50th=[ 1552], 99.90th=[ 1603], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 8, max= 96, per=24.77%, avg=50.03, stdev=20.04, samples=203 iops : min= 2, max= 24, avg=12.03, stdev= 4.98, samples=203 lat (msec) : 20=0.04%, 50=0.16%, 100=0.04%, 250=1.09%, 500=42.77% lat (msec) : 750=20.66%, 1000=22.70%, 2000=12.54% cpu : usr=0.08%, sys=0.55%, ctx=4529, 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=146443: Sat Sep 5 10:00:29 2026 read: IOPS=12, BW=48.4KiB/s (49.6kB/s)(4976KiB/102823msec) slat (usec): min=41, max=56362, avg=13215.71, stdev=7428.05 clat (msec): min=16, max=821, avg=397.99, stdev=96.75 lat (msec): min=16, max=828, avg=411.21, stdev=98.08 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 275], 10.00th=[ 300], 20.00th=[ 326], | 30.00th=[ 342], 40.00th=[ 359], 50.00th=[ 380], 60.00th=[ 405], | 70.00th=[ 430], 80.00th=[ 472], 90.00th=[ 527], 95.00th=[ 575], | 99.00th=[ 676], 99.50th=[ 701], 99.90th=[ 776], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 7, max= 128, per=24.55%, avg=47.63, stdev=22.97, samples=204 iops : min= 1, max= 32, avg=11.42, stdev= 5.78, samples=204 write: IOPS=12, BW=51.2KiB/s (52.4kB/s)(5264KiB/102823msec); 0 zone resets slat (usec): min=35, max=7162, avg=150.27, stdev=318.17 clat (msec): min=150, max=1698, avg=860.64, stdev=237.11 lat (msec): min=150, max=1698, avg=860.79, stdev=237.09 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 502], 10.00th=[ 575], 20.00th=[ 676], | 30.00th=[ 735], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 894], | 70.00th=[ 969], 80.00th=[ 1036], 90.00th=[ 1167], 95.00th=[ 1318], | 99.00th=[ 1485], 99.50th=[ 1552], 99.90th=[ 1687], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 7, max= 126, per=24.97%, avg=50.44, stdev=21.14, samples=204 iops : min= 1, max= 31, avg=12.14, stdev= 5.30, samples=204 lat (msec) : 20=0.04%, 50=0.16%, 100=0.12%, 250=0.70%, 500=43.09% lat (msec) : 750=20.78%, 1000=21.68%, 2000=13.44% cpu : usr=0.08%, sys=0.53%, ctx=4103, 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=146444: Sat Sep 5 10:00:29 2026 read: IOPS=12, BW=48.4KiB/s (49.5kB/s)(4984KiB/103073msec) slat (usec): min=2971, max=64298, avg=13219.85, stdev=7653.02 clat (msec): min=16, max=747, avg=400.12, stdev=95.91 lat (msec): min=28, max=770, avg=413.35, stdev=96.92 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 279], 10.00th=[ 300], 20.00th=[ 326], | 30.00th=[ 342], 40.00th=[ 363], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 443], 80.00th=[ 481], 90.00th=[ 527], 95.00th=[ 567], | 99.00th=[ 659], 99.50th=[ 701], 99.90th=[ 743], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 7, max= 112, per=25.10%, avg=48.69, stdev=21.82, samples=201 iops : min= 1, max= 28, avg=11.69, stdev= 5.47, samples=201 write: IOPS=12, BW=50.0KiB/s (52.2kB/s)(5256KiB/103073msec); 0 zone resets slat (usec): min=27, max=15733, avg=207.01, stdev=810.44 clat (msec): min=235, max=1685, avg=860.74, stdev=228.68 lat (msec): min=235, max=1686, avg=860.95, stdev=228.68 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 506], 10.00th=[ 592], 20.00th=[ 684], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 835], 60.00th=[ 894], | 70.00th=[ 961], 80.00th=[ 1036], 90.00th=[ 1150], 95.00th=[ 1284], | 99.00th=[ 1469], 99.50th=[ 1603], 99.90th=[ 1620], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 15, max= 119, per=24.88%, avg=50.25, stdev=18.67, samples=204 iops : min= 3, max= 29, avg=12.09, stdev= 4.65, samples=204 lat (msec) : 20=0.08%, 50=0.08%, 100=0.23%, 250=0.94%, 500=42.03% lat (msec) : 750=21.76%, 1000=21.72%, 2000=13.16% cpu : usr=0.10%, sys=0.51%, ctx=4179, 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=146445: Sat Sep 5 10:00:29 2026 read: IOPS=12, BW=49.2KiB/s (50.4kB/s)(5060KiB/102770msec) slat (usec): min=2805, max=68458, avg=12986.43, stdev=7193.11 clat (msec): min=15, max=1054, avg=399.89, stdev=104.07 lat (msec): min=40, max=1070, avg=412.88, stdev=105.44 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 266], 10.00th=[ 292], 20.00th=[ 317], | 30.00th=[ 338], 40.00th=[ 363], 50.00th=[ 384], 60.00th=[ 414], | 70.00th=[ 443], 80.00th=[ 481], 90.00th=[ 542], 95.00th=[ 584], | 99.00th=[ 684], 99.50th=[ 735], 99.90th=[ 869], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 111, per=25.38%, avg=49.23, stdev=19.81, samples=201 iops : min= 1, max= 27, avg=11.83, stdev= 4.95, samples=201 write: IOPS=12, BW=50.4KiB/s (51.6kB/s)(5180KiB/102770msec); 0 zone resets slat (usec): min=30, max=11508, avg=200.99, stdev=607.46 clat (msec): min=274, max=1636, avg=863.72, stdev=218.56 lat (msec): min=274, max=1637, avg=863.92, stdev=218.57 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 523], 10.00th=[ 600], 20.00th=[ 684], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 894], | 70.00th=[ 969], 80.00th=[ 1036], 90.00th=[ 1133], 95.00th=[ 1267], | 99.00th=[ 1485], 99.50th=[ 1536], 99.90th=[ 1603], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 7, max= 111, per=24.74%, avg=49.97, stdev=19.12, samples=203 iops : min= 1, max= 27, avg=12.01, stdev= 4.77, samples=203 lat (msec) : 20=0.04%, 50=0.04%, 100=0.20%, 250=1.52%, 500=41.76% lat (msec) : 750=21.25%, 1000=22.23%, 2000=12.97% cpu : usr=0.09%, sys=0.55%, ctx=4593, 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=195KiB/s (199kB/s), 48.4KiB/s-49.2KiB/s (49.5kB/s-50.4kB/s), io=19.6MiB (20.5MB), run=102770-103074msec WRITE: bw=203KiB/s (208kB/s), 50.4KiB/s-51.2KiB/s (51.6kB/s-52.4kB/s), io=20.4MiB (21.4MB), run=102770-103074msec 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=146464: Sat Sep 5 10:00:40 2026 read: IOPS=1, BW=61.4MiB/s (64.4MB/s)(40.0MiB/651msec) slat (nsec): min=41905k, max=41905k, avg=41904695.00, stdev= 0.00 clat (nsec): min=590316k, max=590316k, avg=590316368.00, stdev= 0.00 lat (nsec): min=632225k, max=632225k, avg=632224838.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 592], 80.00th=[ 592], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.00%, ctx=18, 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=61.4MiB/s (64.4MB/s), 61.4MiB/s-61.4MiB/s (64.4MB/s-64.4MB/s), io=40.0MiB (41.9MB), run=651-651msec 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