== sanity test 398c: run fio to test AIO ================= 09:18:36 (1787318316) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.513715 s, 81.6 MB/s osc.lustre-OST0000-osc-ffff97ba44b0e000.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=144922: Fri Aug 21 09:21:31 2026 write: IOPS=15, BW=62.2KiB/s (63.7kB/s)(10.0MiB/164520msec); 0 zone resets slat (usec): min=37, max=21811, avg=369.78, stdev=1136.92 clat (msec): min=153, max=2295, avg=1027.42, stdev=300.77 lat (msec): min=154, max=2295, avg=1027.79, stdev=300.81 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 625], 10.00th=[ 726], 20.00th=[ 818], | 30.00th=[ 877], 40.00th=[ 944], 50.00th=[ 1003], 60.00th=[ 1070], | 70.00th=[ 1133], 80.00th=[ 1250], 90.00th=[ 1418], 95.00th=[ 1569], | 99.00th=[ 1854], 99.50th=[ 1955], 99.90th=[ 2198], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 252, per=25.36%, avg=62.88, stdev=32.33, samples=320 iops : min= 1, max= 63, avg=15.23, stdev= 8.15, samples=320 lat (msec) : 250=0.62%, 500=3.75%, 750=6.91%, 1000=38.83%, 2000=49.45% lat (msec) : >=2000=0.43% cpu : usr=0.05%, sys=0.29%, ctx=1716, 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=144923: Fri Aug 21 09:21:31 2026 write: IOPS=15, BW=62.2KiB/s (63.7kB/s)(10.0MiB/164620msec); 0 zone resets slat (usec): min=37, max=23414, avg=416.19, stdev=1342.66 clat (msec): min=114, max=2314, avg=1027.56, stdev=295.38 lat (msec): min=121, max=2314, avg=1027.98, stdev=295.39 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 625], 10.00th=[ 709], 20.00th=[ 810], | 30.00th=[ 885], 40.00th=[ 936], 50.00th=[ 995], 60.00th=[ 1062], | 70.00th=[ 1150], 80.00th=[ 1250], 90.00th=[ 1418], 95.00th=[ 1552], | 99.00th=[ 1787], 99.50th=[ 1955], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 205, per=25.05%, avg=62.12, stdev=30.06, samples=324 iops : min= 1, max= 51, avg=15.05, stdev= 7.55, samples=324 lat (msec) : 250=0.39%, 500=3.71%, 750=7.81%, 1000=38.83%, 2000=48.91% lat (msec) : >=2000=0.35% cpu : usr=0.06%, sys=0.33%, ctx=2285, 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=144924: Fri Aug 21 09:21:31 2026 write: IOPS=15, BW=62.2KiB/s (63.7kB/s)(10.0MiB/164617msec); 0 zone resets slat (usec): min=52, max=23068, avg=367.31, stdev=1104.61 clat (msec): min=215, max=2230, avg=1027.35, stdev=296.36 lat (msec): min=215, max=2231, avg=1027.72, stdev=296.40 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 567], 10.00th=[ 709], 20.00th=[ 810], | 30.00th=[ 885], 40.00th=[ 944], 50.00th=[ 995], 60.00th=[ 1062], | 70.00th=[ 1133], 80.00th=[ 1250], 90.00th=[ 1401], 95.00th=[ 1536], | 99.00th=[ 1871], 99.50th=[ 1955], 99.90th=[ 2198], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 237, per=25.61%, avg=63.51, stdev=30.51, samples=317 iops : min= 1, max= 59, avg=15.39, stdev= 7.61, samples=317 lat (msec) : 250=0.62%, 500=3.59%, 750=8.12%, 1000=37.89%, 2000=49.45% lat (msec) : >=2000=0.31% cpu : usr=0.05%, sys=0.31%, ctx=1929, 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=144925: Fri Aug 21 09:21:31 2026 write: IOPS=15, BW=62.2KiB/s (63.7kB/s)(10.0MiB/164664msec); 0 zone resets slat (usec): min=47, max=18136, avg=396.37, stdev=1119.85 clat (msec): min=232, max=2101, avg=1027.85, stdev=291.29 lat (msec): min=233, max=2102, avg=1028.25, stdev=291.30 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 617], 10.00th=[ 718], 20.00th=[ 810], | 30.00th=[ 877], 40.00th=[ 936], 50.00th=[ 995], 60.00th=[ 1083], | 70.00th=[ 1150], 80.00th=[ 1250], 90.00th=[ 1418], 95.00th=[ 1552], | 99.00th=[ 1770], 99.50th=[ 1888], 99.90th=[ 2056], 99.95th=[ 2056], | 99.99th=[ 2106] bw ( KiB/s): min= 7, max= 252, per=24.93%, avg=61.82, stdev=31.43, samples=325 iops : min= 1, max= 63, avg=14.98, stdev= 7.87, samples=325 lat (msec) : 250=0.62%, 500=3.36%, 750=8.59%, 1000=37.97%, 2000=49.22% lat (msec) : >=2000=0.23% cpu : usr=0.05%, sys=0.31%, ctx=2268, 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=249KiB/s (255kB/s), 62.2KiB/s-62.2KiB/s (63.7kB/s-63.7kB/s), io=40.0MiB (41.9MB), run=164520-164664msec 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=144960: Fri Aug 21 09:23:26 2026 read: IOPS=11, BW=47.5KiB/s (48.6kB/s)(5048KiB/106335msec) slat (usec): min=3041, max=55610, avg=14710.73, stdev=7539.18 clat (msec): min=14, max=729, avg=402.34, stdev=95.53 lat (msec): min=33, max=750, avg=417.06, stdev=96.52 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 279], 10.00th=[ 296], 20.00th=[ 326], | 30.00th=[ 351], 40.00th=[ 372], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 443], 80.00th=[ 472], 90.00th=[ 527], 95.00th=[ 592], | 99.00th=[ 659], 99.50th=[ 676], 99.90th=[ 718], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 7, max= 112, per=24.97%, avg=46.94, stdev=21.62, samples=211 iops : min= 1, max= 28, avg=11.19, stdev= 5.40, samples=211 write: IOPS=12, BW=48.8KiB/s (49.0kB/s)(5192KiB/106335msec); 0 zone resets slat (usec): min=53, max=17633, avg=480.90, stdev=1149.94 clat (msec): min=313, max=1800, avg=901.72, stdev=222.88 lat (msec): min=315, max=1800, avg=902.20, stdev=222.92 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 575], 10.00th=[ 625], 20.00th=[ 709], | 30.00th=[ 776], 40.00th=[ 827], 50.00th=[ 877], 60.00th=[ 936], | 70.00th=[ 1003], 80.00th=[ 1083], 90.00th=[ 1200], 95.00th=[ 1301], | 99.00th=[ 1569], 99.50th=[ 1670], 99.90th=[ 1703], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 7, max= 119, per=24.62%, avg=48.25, stdev=19.64, samples=210 iops : min= 1, max= 29, avg=11.53, stdev= 4.89, samples=210 lat (msec) : 20=0.04%, 50=0.08%, 100=0.20%, 250=0.86%, 500=42.23% lat (msec) : 750=19.06%, 1000=21.91%, 2000=15.62% cpu : usr=0.11%, sys=0.91%, ctx=4905, 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=144961: Fri Aug 21 09:23:26 2026 read: IOPS=11, BW=46.7KiB/s (47.9kB/s)(4976KiB/106449msec) slat (usec): min=3017, max=59284, avg=14258.09, stdev=7446.99 clat (msec): min=11, max=759, avg=400.72, stdev=96.29 lat (msec): min=17, max=779, avg=414.99, stdev=97.26 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 275], 10.00th=[ 300], 20.00th=[ 326], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 439], 80.00th=[ 477], 90.00th=[ 523], 95.00th=[ 584], | 99.00th=[ 667], 99.50th=[ 701], 99.90th=[ 735], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 6, max= 111, per=24.70%, avg=46.44, stdev=20.53, samples=210 iops : min= 1, max= 27, avg=11.07, stdev= 5.14, samples=210 write: IOPS=12, BW=49.5KiB/s (50.6kB/s)(5264KiB/106449msec); 0 zone resets slat (usec): min=51, max=14432, avg=436.83, stdev=864.14 clat (msec): min=276, max=1801, avg=899.10, stdev=230.58 lat (msec): min=276, max=1802, avg=899.54, stdev=230.61 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 558], 10.00th=[ 634], 20.00th=[ 718], | 30.00th=[ 768], 40.00th=[ 827], 50.00th=[ 877], 60.00th=[ 936], | 70.00th=[ 1003], 80.00th=[ 1099], 90.00th=[ 1200], 95.00th=[ 1284], | 99.00th=[ 1603], 99.50th=[ 1687], 99.90th=[ 1754], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 7, max= 102, per=25.10%, avg=49.19, stdev=18.01, samples=209 iops : min= 1, max= 25, avg=11.77, stdev= 4.46, samples=209 lat (msec) : 20=0.04%, 50=0.08%, 100=0.27%, 250=0.90%, 500=41.33% lat (msec) : 750=19.34%, 1000=22.30%, 2000=15.74% cpu : usr=0.09%, sys=0.83%, ctx=4984, 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=144963: Fri Aug 21 09:23:26 2026 read: IOPS=11, BW=46.8KiB/s (47.0kB/s)(4984KiB/106399msec) slat (usec): min=59, max=57475, avg=14439.15, stdev=7413.91 clat (msec): min=18, max=743, avg=405.10, stdev=99.42 lat (msec): min=26, max=752, avg=419.54, stdev=100.16 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 279], 10.00th=[ 305], 20.00th=[ 330], | 30.00th=[ 351], 40.00th=[ 372], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 443], 80.00th=[ 477], 90.00th=[ 542], 95.00th=[ 592], | 99.00th=[ 684], 99.50th=[ 701], 99.90th=[ 735], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 7, max= 119, per=25.04%, avg=47.07, stdev=21.02, samples=208 iops : min= 1, max= 29, avg=11.23, stdev= 5.26, samples=208 write: IOPS=12, BW=49.4KiB/s (50.6kB/s)(5256KiB/106399msec); 0 zone resets slat (usec): min=57, max=14532, avg=493.35, stdev=1167.15 clat (msec): min=200, max=1740, avg=896.23, stdev=226.11 lat (msec): min=200, max=1741, avg=896.73, stdev=226.12 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 575], 10.00th=[ 634], 20.00th=[ 718], | 30.00th=[ 768], 40.00th=[ 818], 50.00th=[ 869], 60.00th=[ 927], | 70.00th=[ 995], 80.00th=[ 1083], 90.00th=[ 1200], 95.00th=[ 1284], | 99.00th=[ 1552], 99.50th=[ 1636], 99.90th=[ 1703], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 7, max= 103, per=24.97%, avg=48.94, stdev=19.31, samples=209 iops : min= 1, max= 25, avg=11.69, stdev= 4.85, samples=209 lat (msec) : 20=0.04%, 50=0.04%, 100=0.31%, 250=0.98%, 500=40.20% lat (msec) : 750=20.51%, 1000=22.70%, 2000=15.23% cpu : usr=0.11%, sys=0.84%, ctx=5004, 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=144964: Fri Aug 21 09:23:26 2026 read: IOPS=11, BW=47.6KiB/s (48.8kB/s)(5060KiB/106227msec) slat (usec): min=3274, max=59772, avg=14242.84, stdev=7289.62 clat (msec): min=36, max=749, avg=406.42, stdev=97.23 lat (msec): min=48, max=767, avg=420.67, stdev=98.09 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 271], 10.00th=[ 296], 20.00th=[ 330], | 30.00th=[ 355], 40.00th=[ 372], 50.00th=[ 397], 60.00th=[ 418], | 70.00th=[ 443], 80.00th=[ 481], 90.00th=[ 542], 95.00th=[ 600], | 99.00th=[ 676], 99.50th=[ 693], 99.90th=[ 735], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 6, max= 127, per=25.42%, avg=47.79, stdev=19.80, samples=208 iops : min= 1, max= 31, avg=11.40, stdev= 4.94, samples=208 write: IOPS=12, BW=48.8KiB/s (49.9kB/s)(5180KiB/106227msec); 0 zone resets slat (usec): min=57, max=20170, avg=480.43, stdev=1183.60 clat (msec): min=284, max=1827, avg=897.94, stdev=219.89 lat (msec): min=285, max=1828, avg=898.43, stdev=219.86 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 567], 10.00th=[ 625], 20.00th=[ 718], | 30.00th=[ 768], 40.00th=[ 827], 50.00th=[ 877], 60.00th=[ 944], | 70.00th=[ 1003], 80.00th=[ 1083], 90.00th=[ 1200], 95.00th=[ 1284], | 99.00th=[ 1452], 99.50th=[ 1536], 99.90th=[ 1720], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 6, max= 111, per=24.54%, avg=48.10, stdev=19.17, samples=210 iops : min= 1, max= 27, avg=11.49, stdev= 4.78, samples=210 lat (msec) : 50=0.12%, 100=0.16%, 250=0.62%, 500=41.21%, 750=20.59% lat (msec) : 1000=21.91%, 2000=15.39% cpu : usr=0.10%, sys=0.86%, ctx=4781, 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=189KiB/s (193kB/s), 46.7KiB/s-47.6KiB/s (47.9kB/s-48.8kB/s), io=19.6MiB (20.5MB), run=106227-106449msec WRITE: bw=196KiB/s (201kB/s), 48.8KiB/s-49.5KiB/s (49.9kB/s-50.6kB/s), io=20.4MiB (21.4MB), run=106227-106449msec 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=144984: Fri Aug 21 09:23:35 2026 read: IOPS=2, BW=84.6MiB/s (88.7MB/s)(40.0MiB/473msec) slat (nsec): min=25645k, max=25645k, avg=25644869.00, stdev= 0.00 clat (nsec): min=429507k, max=429507k, avg=429506863.00, stdev= 0.00 lat (nsec): min=455156k, max=455156k, avg=455156085.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 430], 10.00th=[ 430], 20.00th=[ 430], | 30.00th=[ 430], 40.00th=[ 430], 50.00th=[ 430], 60.00th=[ 430], | 70.00th=[ 430], 80.00th=[ 430], 90.00th=[ 430], 95.00th=[ 430], | 99.00th=[ 430], 99.50th=[ 430], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.12%, ctx=4, 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=84.6MiB/s (88.7MB/s), 84.6MiB/s-84.6MiB/s (88.7MB/s-88.7MB/s), io=40.0MiB (41.9MB), run=473-473msec 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