== sanity test 398c: run fio to test AIO ================= 14:41:56 (1780339316) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.99974 s, 42.0 MB/s osc.lustre-OST0000-osc-ffff91d947cdd000.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=145398: Mon Jun 1 14:44:37 2026 write: IOPS=17, BW=68.3KiB/s (69.9kB/s)(10.0MiB/149983msec); 0 zone resets slat (usec): min=35, max=20271, avg=234.88, stdev=781.21 clat (msec): min=282, max=2772, avg=935.72, stdev=320.90 lat (msec): min=282, max=2772, avg=935.96, stdev=320.89 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 535], 10.00th=[ 642], 20.00th=[ 726], | 30.00th=[ 785], 40.00th=[ 827], 50.00th=[ 869], 60.00th=[ 919], | 70.00th=[ 995], 80.00th=[ 1116], 90.00th=[ 1318], 95.00th=[ 1536], | 99.00th=[ 2299], 99.50th=[ 2500], 99.90th=[ 2735], 99.95th=[ 2735], | 99.99th=[ 2769] bw ( KiB/s): min= 7, max= 128, per=26.36%, avg=71.96, stdev=30.70, samples=280 iops : min= 1, max= 32, avg=17.52, stdev= 7.70, samples=280 lat (msec) : 500=4.45%, 750=18.28%, 1000=48.01%, 2000=27.97%, >=2000=1.29% cpu : usr=0.03%, sys=0.28%, ctx=1840, 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=145399: Mon Jun 1 14:44:37 2026 write: IOPS=17, BW=68.3KiB/s (69.0kB/s)(10.0MiB/149869msec); 0 zone resets slat (usec): min=35, max=19801, avg=218.34, stdev=708.76 clat (msec): min=221, max=2829, avg=935.09, stdev=321.96 lat (msec): min=221, max=2830, avg=935.31, stdev=321.97 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 542], 10.00th=[ 642], 20.00th=[ 718], | 30.00th=[ 768], 40.00th=[ 827], 50.00th=[ 877], 60.00th=[ 927], | 70.00th=[ 1003], 80.00th=[ 1116], 90.00th=[ 1318], 95.00th=[ 1502], | 99.00th=[ 2089], 99.50th=[ 2668], 99.90th=[ 2836], 99.95th=[ 2836], | 99.99th=[ 2836] bw ( KiB/s): min= 7, max= 128, per=26.43%, avg=72.15, stdev=30.35, samples=279 iops : min= 1, max= 32, avg=17.57, stdev= 7.58, samples=279 lat (msec) : 250=0.62%, 500=3.01%, 750=21.80%, 1000=43.32%, 2000=29.96% lat (msec) : >=2000=1.29% cpu : usr=0.04%, sys=0.25%, ctx=1688, 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=145400: Mon Jun 1 14:44:37 2026 write: IOPS=17, BW=68.3KiB/s (69.9kB/s)(10.0MiB/149985msec); 0 zone resets slat (usec): min=35, max=24038, avg=236.10, stdev=791.15 clat (msec): min=159, max=2830, avg=936.70, stdev=318.00 lat (msec): min=160, max=2830, avg=936.93, stdev=317.98 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 550], 10.00th=[ 642], 20.00th=[ 726], | 30.00th=[ 785], 40.00th=[ 827], 50.00th=[ 877], 60.00th=[ 927], | 70.00th=[ 995], 80.00th=[ 1099], 90.00th=[ 1334], 95.00th=[ 1519], | 99.00th=[ 2106], 99.50th=[ 2232], 99.90th=[ 2702], 99.95th=[ 2702], | 99.99th=[ 2836] bw ( KiB/s): min= 6, max= 159, per=26.33%, avg=71.89, stdev=32.08, samples=280 iops : min= 1, max= 39, avg=17.49, stdev= 8.04, samples=280 lat (msec) : 250=0.27%, 500=3.79%, 750=20.08%, 1000=46.76%, 2000=27.46% lat (msec) : >=2000=1.64% cpu : usr=0.04%, sys=0.29%, ctx=2081, 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=145401: Mon Jun 1 14:44:37 2026 write: IOPS=17, BW=68.3KiB/s (69.9kB/s)(10.0MiB/149990msec); 0 zone resets slat (usec): min=35, max=16733, avg=255.05, stdev=825.01 clat (msec): min=279, max=2759, avg=935.88, stdev=317.02 lat (msec): min=280, max=2759, avg=936.14, stdev=317.07 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 535], 10.00th=[ 651], 20.00th=[ 735], | 30.00th=[ 785], 40.00th=[ 827], 50.00th=[ 877], 60.00th=[ 927], | 70.00th=[ 995], 80.00th=[ 1083], 90.00th=[ 1334], 95.00th=[ 1536], | 99.00th=[ 2265], 99.50th=[ 2400], 99.90th=[ 2769], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min= 8, max= 128, per=26.18%, avg=71.47, stdev=26.90, samples=282 iops : min= 2, max= 32, avg=17.40, stdev= 6.74, samples=282 lat (msec) : 500=4.10%, 750=19.34%, 1000=47.58%, 2000=27.73%, >=2000=1.25% cpu : usr=0.04%, sys=0.30%, ctx=2230, 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 Run status group 0 (all jobs): WRITE: bw=273KiB/s (280kB/s), 68.3KiB/s-68.3KiB/s (69.9kB/s-69.0kB/s), io=40.0MiB (41.9MB), run=149869-149990msec 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=145432: Mon Jun 1 14:46:30 2026 read: IOPS=12, BW=49.4KiB/s (50.6kB/s)(5048KiB/102181msec) slat (usec): min=104, max=61032, avg=14543.03, stdev=7929.65 clat (msec): min=33, max=910, avg=402.82, stdev=100.17 lat (msec): min=40, max=967, avg=417.37, stdev=101.50 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 268], 10.00th=[ 292], 20.00th=[ 330], | 30.00th=[ 351], 40.00th=[ 372], 50.00th=[ 393], 60.00th=[ 414], | 70.00th=[ 439], 80.00th=[ 477], 90.00th=[ 527], 95.00th=[ 592], | 99.00th=[ 693], 99.50th=[ 726], 99.90th=[ 785], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7, max= 110, per=25.28%, avg=49.30, stdev=21.17, samples=201 iops : min= 1, max= 27, avg=11.84, stdev= 5.35, samples=201 write: IOPS=12, BW=50.8KiB/s (52.0kB/s)(5192KiB/102181msec); 0 zone resets slat (usec): min=47, max=20502, avg=300.51, stdev=1010.90 clat (msec): min=166, max=1743, avg=852.35, stdev=249.61 lat (msec): min=175, max=1744, avg=852.65, stdev=249.58 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 481], 10.00th=[ 550], 20.00th=[ 634], | 30.00th=[ 709], 40.00th=[ 785], 50.00th=[ 835], 60.00th=[ 902], | 70.00th=[ 961], 80.00th=[ 1053], 90.00th=[ 1167], 95.00th=[ 1284], | 99.00th=[ 1502], 99.50th=[ 1603], 99.90th=[ 1720], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 7, max= 125, per=24.65%, avg=50.04, stdev=22.07, samples=203 iops : min= 1, max= 31, avg=12.02, stdev= 5.56, samples=203 lat (msec) : 50=0.04%, 100=0.16%, 250=1.64%, 500=43.20%, 750=22.34% lat (msec) : 1000=19.65%, 2000=12.97% cpu : usr=0.10%, sys=0.66%, ctx=4472, 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=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=145433: Mon Jun 1 14:46:30 2026 read: IOPS=12, BW=48.5KiB/s (49.7kB/s)(4976KiB/102518msec) slat (usec): min=3041, max=49770, avg=14126.55, stdev=7613.09 clat (msec): min=20, max=872, avg=400.04, stdev=100.42 lat (msec): min=35, max=880, avg=414.17, stdev=101.15 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 264], 10.00th=[ 292], 20.00th=[ 330], | 30.00th=[ 351], 40.00th=[ 372], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 435], 80.00th=[ 472], 90.00th=[ 514], 95.00th=[ 584], | 99.00th=[ 718], 99.50th=[ 735], 99.90th=[ 810], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7, max= 127, per=24.69%, avg=48.14, stdev=21.43, samples=202 iops : min= 1, max= 31, avg=11.55, stdev= 5.39, samples=202 write: IOPS=12, BW=51.3KiB/s (52.6kB/s)(5264KiB/102518msec); 0 zone resets slat (usec): min=59, max=14712, avg=273.62, stdev=814.90 clat (msec): min=175, max=1841, avg=852.36, stdev=248.29 lat (msec): min=176, max=1841, avg=852.63, stdev=248.29 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 485], 10.00th=[ 550], 20.00th=[ 634], | 30.00th=[ 709], 40.00th=[ 776], 50.00th=[ 835], 60.00th=[ 902], | 70.00th=[ 978], 80.00th=[ 1062], 90.00th=[ 1167], 95.00th=[ 1284], | 99.00th=[ 1485], 99.50th=[ 1636], 99.90th=[ 1754], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 7, max= 120, per=25.04%, avg=50.83, stdev=22.36, samples=203 iops : min= 1, max= 30, avg=12.22, stdev= 5.67, samples=203 lat (msec) : 50=0.16%, 100=0.27%, 250=1.76%, 500=43.87%, 750=20.66% lat (msec) : 1000=19.57%, 2000=13.71% cpu : usr=0.09%, sys=0.69%, ctx=4489, 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=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=145434: Mon Jun 1 14:46:30 2026 read: IOPS=12, BW=48.6KiB/s (49.7kB/s)(4984KiB/102592msec) slat (usec): min=2717, max=56386, avg=14199.68, stdev=7578.21 clat (msec): min=31, max=849, avg=399.24, stdev=93.54 lat (msec): min=39, max=873, avg=413.44, stdev=94.32 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 275], 10.00th=[ 296], 20.00th=[ 330], | 30.00th=[ 351], 40.00th=[ 372], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 435], 80.00th=[ 460], 90.00th=[ 510], 95.00th=[ 575], | 99.00th=[ 676], 99.50th=[ 768], 99.90th=[ 844], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 119, per=24.72%, avg=48.21, stdev=22.47, samples=203 iops : min= 1, max= 29, avg=11.57, stdev= 5.66, samples=203 write: IOPS=12, BW=51.2KiB/s (52.5kB/s)(5256KiB/102592msec); 0 zone resets slat (usec): min=43, max=12945, avg=318.85, stdev=873.42 clat (msec): min=158, max=1855, avg=853.81, stdev=250.45 lat (msec): min=159, max=1855, avg=854.13, stdev=250.44 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 477], 10.00th=[ 542], 20.00th=[ 642], | 30.00th=[ 709], 40.00th=[ 776], 50.00th=[ 844], 60.00th=[ 902], | 70.00th=[ 978], 80.00th=[ 1053], 90.00th=[ 1167], 95.00th=[ 1301], | 99.00th=[ 1536], 99.50th=[ 1670], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 104, per=24.81%, avg=50.37, stdev=20.73, samples=204 iops : min= 1, max= 26, avg=12.10, stdev= 5.25, samples=204 lat (msec) : 50=0.12%, 100=0.08%, 250=0.86%, 500=45.47%, 750=19.92% lat (msec) : 1000=20.59%, 2000=12.97% cpu : usr=0.09%, sys=0.67%, ctx=4265, 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=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=145435: Mon Jun 1 14:46:30 2026 read: IOPS=12, BW=49.6KiB/s (50.8kB/s)(5060KiB/102091msec) slat (usec): min=3041, max=62940, avg=14314.75, stdev=7825.38 clat (msec): min=20, max=966, avg=401.12, stdev=101.31 lat (msec): min=26, max=991, avg=415.44, stdev=102.39 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 268], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 351], 40.00th=[ 372], 50.00th=[ 393], 60.00th=[ 414], | 70.00th=[ 435], 80.00th=[ 464], 90.00th=[ 527], 95.00th=[ 584], | 99.00th=[ 718], 99.50th=[ 768], 99.90th=[ 936], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 7, max= 119, per=25.47%, avg=49.67, stdev=21.91, samples=200 iops : min= 1, max= 29, avg=11.94, stdev= 5.50, samples=200 write: IOPS=12, BW=50.7KiB/s (51.0kB/s)(5180KiB/102091msec); 0 zone resets slat (usec): min=47, max=29017, avg=291.10, stdev=1021.96 clat (msec): min=112, max=1831, avg=852.72, stdev=253.36 lat (msec): min=112, max=1831, avg=853.01, stdev=253.36 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 481], 10.00th=[ 542], 20.00th=[ 634], | 30.00th=[ 709], 40.00th=[ 776], 50.00th=[ 844], 60.00th=[ 902], | 70.00th=[ 978], 80.00th=[ 1062], 90.00th=[ 1167], 95.00th=[ 1284], | 99.00th=[ 1536], 99.50th=[ 1636], 99.90th=[ 1720], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 7, max= 111, per=24.59%, avg=49.92, stdev=21.36, samples=203 iops : min= 1, max= 27, avg=12.00, stdev= 5.40, samples=203 lat (msec) : 50=0.20%, 100=0.08%, 250=1.33%, 500=44.45%, 750=21.37% lat (msec) : 1000=19.02%, 2000=13.55% cpu : usr=0.10%, sys=0.70%, ctx=4442, 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=196KiB/s (200kB/s), 48.5KiB/s-49.6KiB/s (49.7kB/s-50.8kB/s), io=19.6MiB (20.5MB), run=102091-102592msec WRITE: bw=204KiB/s (209kB/s), 50.7KiB/s-51.3KiB/s (51.0kB/s-52.6kB/s), io=20.4MiB (21.4MB), run=102091-102592msec 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=145455: Mon Jun 1 14:46:40 2026 read: IOPS=1, BW=79.4MiB/s (83.2MB/s)(40.0MiB/504msec) slat (nsec): min=32487k, max=32487k, avg=32487378.00, stdev= 0.00 clat (nsec): min=456026k, max=456026k, avg=456025745.00, stdev= 0.00 lat (nsec): min=488519k, max=488519k, avg=488519229.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 456], 10.00th=[ 456], 20.00th=[ 456], | 30.00th=[ 456], 40.00th=[ 456], 50.00th=[ 456], 60.00th=[ 456], | 70.00th=[ 456], 80.00th=[ 456], 90.00th=[ 456], 95.00th=[ 456], | 99.00th=[ 456], 99.50th=[ 456], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.58%, ctx=6, 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=79.4MiB/s (83.2MB/s), 79.4MiB/s-79.4MiB/s (83.2MB/s-83.2MB/s), io=40.0MiB (41.9MB), run=504-504msec 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