== sanity test 398c: run fio to test AIO ================= 13:30:25 (1777051825) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.41849 s, 100 MB/s osc.lustre-OST0000-osc-ffff89cc810db800.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=147138: Fri Apr 24 13:32:51 2026 write: IOPS=18, BW=74.8KiB/s (76.6kB/s)(10.0MiB/136812msec); 0 zone resets slat (usec): min=68, max=7438, avg=607.88, stdev=680.64 clat (msec): min=177, max=1633, avg=853.59, stdev=239.01 lat (msec): min=178, max=1634, avg=854.21, stdev=239.05 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 485], 10.00th=[ 592], 20.00th=[ 667], | 30.00th=[ 726], 40.00th=[ 768], 50.00th=[ 827], 60.00th=[ 894], | 70.00th=[ 953], 80.00th=[ 1036], 90.00th=[ 1167], 95.00th=[ 1284], | 99.00th=[ 1519], 99.50th=[ 1586], 99.90th=[ 1620], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 7, max= 256, per=24.76%, avg=74.03, stdev=32.85, samples=272 iops : min= 1, max= 64, avg=17.94, stdev= 8.24, samples=272 lat (msec) : 250=0.62%, 500=4.80%, 750=31.02%, 1000=39.22%, 2000=24.34% cpu : usr=0.08%, sys=0.66%, ctx=3013, 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=147139: Fri Apr 24 13:32:51 2026 write: IOPS=18, BW=74.9KiB/s (76.7kB/s)(10.0MiB/136649msec); 0 zone resets slat (usec): min=77, max=14055, avg=602.89, stdev=637.02 clat (msec): min=84, max=1631, avg=852.95, stdev=240.73 lat (msec): min=85, max=1632, avg=853.56, stdev=240.76 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 485], 10.00th=[ 584], 20.00th=[ 667], | 30.00th=[ 718], 40.00th=[ 768], 50.00th=[ 827], 60.00th=[ 894], | 70.00th=[ 953], 80.00th=[ 1053], 90.00th=[ 1167], 95.00th=[ 1284], | 99.00th=[ 1502], 99.50th=[ 1536], 99.90th=[ 1603], 99.95th=[ 1620], | 99.99th=[ 1636] bw ( KiB/s): min= 7, max= 180, per=24.84%, avg=74.27, stdev=29.12, samples=271 iops : min= 1, max= 45, avg=18.00, stdev= 7.33, samples=271 lat (msec) : 100=0.04%, 250=0.55%, 500=5.43%, 750=30.16%, 1000=38.87% lat (msec) : 2000=24.96% cpu : usr=0.08%, sys=0.71%, ctx=3083, 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=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=147140: Fri Apr 24 13:32:51 2026 write: IOPS=18, BW=74.8KiB/s (76.6kB/s)(10.0MiB/136813msec); 0 zone resets slat (usec): min=16, max=11473, avg=594.12, stdev=673.04 clat (msec): min=202, max=1641, avg=853.70, stdev=240.23 lat (msec): min=204, max=1641, avg=854.30, stdev=240.25 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 485], 10.00th=[ 575], 20.00th=[ 667], | 30.00th=[ 718], 40.00th=[ 768], 50.00th=[ 827], 60.00th=[ 894], | 70.00th=[ 961], 80.00th=[ 1036], 90.00th=[ 1183], 95.00th=[ 1284], | 99.00th=[ 1536], 99.50th=[ 1569], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 7, max= 256, per=24.76%, avg=74.03, stdev=33.02, samples=272 iops : min= 1, max= 64, avg=17.94, stdev= 8.28, samples=272 lat (msec) : 250=0.62%, 500=5.20%, 750=30.16%, 1000=40.55%, 2000=23.48% cpu : usr=0.07%, sys=0.68%, ctx=2865, 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=147141: Fri Apr 24 13:32:51 2026 write: IOPS=18, BW=74.8KiB/s (76.6kB/s)(10.0MiB/136885msec); 0 zone resets slat (usec): min=65, max=10463, avg=598.48, stdev=710.70 clat (msec): min=238, max=1741, avg=854.10, stdev=238.60 lat (msec): min=239, max=1742, avg=854.71, stdev=238.62 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 485], 10.00th=[ 575], 20.00th=[ 667], | 30.00th=[ 718], 40.00th=[ 776], 50.00th=[ 827], 60.00th=[ 894], | 70.00th=[ 953], 80.00th=[ 1036], 90.00th=[ 1167], 95.00th=[ 1301], | 99.00th=[ 1502], 99.50th=[ 1552], 99.90th=[ 1653], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 7, max= 144, per=24.90%, avg=74.44, stdev=33.66, samples=270 iops : min= 1, max= 36, avg=18.04, stdev= 8.44, samples=270 lat (msec) : 250=0.16%, 500=5.86%, 750=29.57%, 1000=40.35%, 2000=24.06% cpu : usr=0.07%, sys=0.66%, ctx=2841, 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=299KiB/s (306kB/s), 74.8KiB/s-74.9KiB/s (76.6kB/s-76.7kB/s), io=40.0MiB (41.9MB), run=136649-136885msec 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=147171: Fri Apr 24 13:34:42 2026 read: IOPS=12, BW=49.5KiB/s (50.7kB/s)(5048KiB/101883msec) slat (usec): min=3355, max=41304, avg=11693.42, stdev=4764.51 clat (msec): min=20, max=1070, avg=401.15, stdev=115.37 lat (msec): min=33, max=1082, avg=412.86, stdev=116.63 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 247], 10.00th=[ 275], 20.00th=[ 309], | 30.00th=[ 338], 40.00th=[ 363], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 447], 80.00th=[ 481], 90.00th=[ 550], 95.00th=[ 600], | 99.00th=[ 726], 99.50th=[ 919], 99.90th=[ 1062], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 135, per=25.20%, avg=49.40, stdev=22.67, samples=200 iops : min= 1, max= 33, avg=11.78, stdev= 5.70, samples=200 write: IOPS=12, BW=50.0KiB/s (52.2kB/s)(5192KiB/101883msec); 0 zone resets slat (usec): min=118, max=7413, avg=613.25, stdev=721.16 clat (msec): min=250, max=1680, avg=851.63, stdev=252.64 lat (msec): min=251, max=1680, avg=852.25, stdev=252.69 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 493], 10.00th=[ 558], 20.00th=[ 634], | 30.00th=[ 709], 40.00th=[ 760], 50.00th=[ 810], 60.00th=[ 877], | 70.00th=[ 953], 80.00th=[ 1062], 90.00th=[ 1217], 95.00th=[ 1318], | 99.00th=[ 1586], 99.50th=[ 1620], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 103, per=24.51%, avg=50.25, stdev=21.67, samples=202 iops : min= 1, max= 25, avg=11.98, stdev= 5.42, samples=202 lat (msec) : 50=0.20%, 100=0.04%, 250=2.58%, 500=41.25%, 750=24.18% lat (msec) : 1000=19.26%, 2000=12.50% cpu : usr=0.12%, sys=1.19%, ctx=5015, 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=147172: Fri Apr 24 13:34:42 2026 read: IOPS=12, BW=48.8KiB/s (50.0kB/s)(4976KiB/101881msec) slat (usec): min=3380, max=38486, avg=11357.40, stdev=4605.09 clat (msec): min=11, max=935, avg=400.09, stdev=117.61 lat (msec): min=18, max=944, avg=411.47, stdev=118.97 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 239], 10.00th=[ 271], 20.00th=[ 313], | 30.00th=[ 342], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 443], 80.00th=[ 485], 90.00th=[ 558], 95.00th=[ 600], | 99.00th=[ 735], 99.50th=[ 835], 99.90th=[ 877], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 128, per=24.58%, avg=48.18, stdev=22.76, samples=202 iops : min= 1, max= 32, avg=11.47, stdev= 5.76, samples=202 write: IOPS=12, BW=51.7KiB/s (52.9kB/s)(5264KiB/101881msec); 0 zone resets slat (usec): min=91, max=10341, avg=639.91, stdev=733.94 clat (msec): min=234, max=1663, avg=847.63, stdev=245.34 lat (msec): min=235, max=1664, avg=848.27, stdev=245.40 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 493], 10.00th=[ 558], 20.00th=[ 634], | 30.00th=[ 709], 40.00th=[ 760], 50.00th=[ 818], 60.00th=[ 877], | 70.00th=[ 953], 80.00th=[ 1045], 90.00th=[ 1200], 95.00th=[ 1318], | 99.00th=[ 1485], 99.50th=[ 1552], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7, max= 111, per=24.99%, avg=51.23, stdev=20.71, samples=201 iops : min= 1, max= 27, avg=12.22, stdev= 5.19, samples=201 lat (msec) : 20=0.12%, 50=0.16%, 100=0.35%, 250=2.73%, 500=39.61% lat (msec) : 750=24.14%, 1000=20.62%, 2000=12.27% cpu : usr=0.15%, sys=1.14%, ctx=5124, 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=147173: Fri Apr 24 13:34:42 2026 read: IOPS=12, BW=48.0KiB/s (50.1kB/s)(4984KiB/101767msec) slat (usec): min=166, max=46786, avg=11458.44, stdev=4820.34 clat (msec): min=12, max=953, avg=395.82, stdev=109.73 lat (msec): min=12, max=963, avg=407.29, stdev=111.43 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 241], 10.00th=[ 268], 20.00th=[ 309], | 30.00th=[ 338], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 447], 80.00th=[ 481], 90.00th=[ 531], 95.00th=[ 584], | 99.00th=[ 667], 99.50th=[ 802], 99.90th=[ 860], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 118, per=25.24%, avg=49.47, stdev=22.53, samples=198 iops : min= 1, max= 29, avg=11.79, stdev= 5.67, samples=198 write: IOPS=12, BW=51.6KiB/s (52.9kB/s)(5256KiB/101767msec); 0 zone resets slat (usec): min=102, max=7896, avg=611.96, stdev=642.70 clat (msec): min=84, max=1737, avg=851.30, stdev=258.89 lat (msec): min=85, max=1738, avg=851.92, stdev=258.92 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 485], 10.00th=[ 558], 20.00th=[ 634], | 30.00th=[ 709], 40.00th=[ 760], 50.00th=[ 818], 60.00th=[ 877], | 70.00th=[ 961], 80.00th=[ 1062], 90.00th=[ 1217], 95.00th=[ 1318], | 99.00th=[ 1536], 99.50th=[ 1603], 99.90th=[ 1670], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 7, max= 119, per=24.83%, avg=50.90, stdev=21.32, samples=201 iops : min= 1, max= 29, avg=12.14, stdev= 5.33, samples=201 lat (msec) : 20=0.08%, 50=0.16%, 100=0.39%, 250=2.85%, 500=40.94% lat (msec) : 750=23.40%, 1000=19.34%, 2000=12.85% cpu : usr=0.13%, sys=1.18%, ctx=5219, 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=147174: Fri Apr 24 13:34:42 2026 read: IOPS=12, BW=49.7KiB/s (50.9kB/s)(5060KiB/101883msec) slat (usec): min=3277, max=62185, avg=11670.46, stdev=4949.44 clat (msec): min=18, max=907, avg=401.11, stdev=112.03 lat (msec): min=30, max=915, avg=412.80, stdev=113.45 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 251], 10.00th=[ 271], 20.00th=[ 309], | 30.00th=[ 338], 40.00th=[ 372], 50.00th=[ 397], 60.00th=[ 422], | 70.00th=[ 451], 80.00th=[ 489], 90.00th=[ 542], 95.00th=[ 592], | 99.00th=[ 751], 99.50th=[ 785], 99.90th=[ 827], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7, max= 119, per=25.05%, avg=49.09, stdev=23.12, samples=202 iops : min= 1, max= 29, avg=11.69, stdev= 5.82, samples=202 write: IOPS=12, BW=50.8KiB/s (52.1kB/s)(5180KiB/101883msec); 0 zone resets slat (usec): min=103, max=13671, avg=616.20, stdev=791.52 clat (msec): min=229, max=1665, avg=853.20, stdev=244.75 lat (msec): min=229, max=1665, avg=853.82, stdev=244.80 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 506], 10.00th=[ 567], 20.00th=[ 642], | 30.00th=[ 709], 40.00th=[ 768], 50.00th=[ 827], 60.00th=[ 885], | 70.00th=[ 961], 80.00th=[ 1062], 90.00th=[ 1200], 95.00th=[ 1301], | 99.00th=[ 1519], 99.50th=[ 1552], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7, max= 104, per=24.55%, avg=50.32, stdev=21.16, samples=201 iops : min= 1, max= 26, avg=12.00, stdev= 5.32, samples=201 lat (msec) : 20=0.04%, 50=0.12%, 100=0.31%, 250=2.03%, 500=40.82% lat (msec) : 750=24.65%, 1000=19.45%, 2000=12.58% cpu : usr=0.12%, sys=1.16%, ctx=5169, 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=197KiB/s (202kB/s), 48.8KiB/s-49.7KiB/s (50.0kB/s-50.9kB/s), io=19.6MiB (20.5MB), run=101767-101883msec WRITE: bw=205KiB/s (210kB/s), 50.8KiB/s-51.7KiB/s (52.1kB/s-52.9kB/s), io=20.4MiB (21.4MB), run=101767-101883msec 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=147198: Fri Apr 24 13:34:52 2026 read: IOPS=2, BW=110MiB/s (116MB/s)(40.0MiB/362msec) slat (nsec): min=28181k, max=28181k, avg=28181379.00, stdev= 0.00 clat (nsec): min=311148k, max=311148k, avg=311147881.00, stdev= 0.00 lat (nsec): min=339338k, max=339338k, avg=339338083.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 313], | 70.00th=[ 313], 80.00th=[ 313], 90.00th=[ 313], 95.00th=[ 313], | 99.00th=[ 313], 99.50th=[ 313], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=6.09%, ctx=44, majf=0, minf=9 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=110MiB/s (116MB/s), 110MiB/s-110MiB/s (116MB/s-116MB/s), io=40.0MiB (41.9MB), run=362-362msec 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