== sanity test 398c: run fio to test AIO ================= 19:18:55 (1781824735) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 1.32759 s, 31.6 MB/s osc.lustre-OST0000-osc-ffff93754b34d000.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=147503: Thu Jun 18 19:26:24 2026 write: IOPS=6, BW=24.3KiB/s (24.9kB/s)(10.0MiB/421188msec); 0 zone resets slat (usec): min=55, max=40153, avg=1039.89, stdev=2766.91 clat (msec): min=679, max=5467, avg=2628.68, stdev=685.89 lat (msec): min=680, max=5467, avg=2629.73, stdev=685.92 clat percentiles (msec): | 1.00th=[ 902], 5.00th=[ 1670], 10.00th=[ 1838], 20.00th=[ 2072], | 30.00th=[ 2265], 40.00th=[ 2433], 50.00th=[ 2601], 60.00th=[ 2735], | 70.00th=[ 2903], 80.00th=[ 3138], 90.00th=[ 3540], 95.00th=[ 3876], | 99.00th=[ 4530], 99.50th=[ 4866], 99.90th=[ 5336], 99.95th=[ 5336], | 99.99th=[ 5470] bw ( KiB/s): min= 7, max= 126, per=28.03%, avg=27.19, stdev=18.85, samples=724 iops : min= 1, max= 31, avg= 6.13, stdev= 4.74, samples=724 lat (msec) : 750=0.66%, 1000=0.35%, 2000=15.94%, >=2000=83.05% cpu : usr=0.05%, sys=0.29%, ctx=1838, 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=147504: Thu Jun 18 19:26:24 2026 write: IOPS=6, BW=24.3KiB/s (24.9kB/s)(10.0MiB/421034msec); 0 zone resets slat (usec): min=63, max=37152, avg=1142.45, stdev=2912.79 clat (msec): min=636, max=5577, avg=2627.34, stdev=695.39 lat (msec): min=636, max=5577, avg=2628.50, stdev=695.36 clat percentiles (msec): | 1.00th=[ 1133], 5.00th=[ 1636], 10.00th=[ 1838], 20.00th=[ 2056], | 30.00th=[ 2232], 40.00th=[ 2400], 50.00th=[ 2567], 60.00th=[ 2735], | 70.00th=[ 2937], 80.00th=[ 3138], 90.00th=[ 3540], 95.00th=[ 3876], | 99.00th=[ 4597], 99.50th=[ 4732], 99.90th=[ 5336], 99.95th=[ 5604], | 99.99th=[ 5604] bw ( KiB/s): min= 7, max= 126, per=27.56%, avg=26.74, stdev=16.96, samples=736 iops : min= 1, max= 31, avg= 6.02, stdev= 4.25, samples=736 lat (msec) : 750=0.66%, 1000=0.27%, 2000=16.29%, >=2000=82.77% cpu : usr=0.04%, sys=0.32%, ctx=1982, 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=147505: Thu Jun 18 19:26:24 2026 write: IOPS=6, BW=24.3KiB/s (24.9kB/s)(10.0MiB/421033msec); 0 zone resets slat (usec): min=59, max=32814, avg=1010.63, stdev=2577.43 clat (msec): min=778, max=5352, avg=2627.96, stdev=695.58 lat (msec): min=778, max=5353, avg=2628.98, stdev=695.64 clat percentiles (msec): | 1.00th=[ 1045], 5.00th=[ 1670], 10.00th=[ 1838], 20.00th=[ 2039], | 30.00th=[ 2232], 40.00th=[ 2433], 50.00th=[ 2601], 60.00th=[ 2769], | 70.00th=[ 2903], 80.00th=[ 3138], 90.00th=[ 3540], 95.00th=[ 3876], | 99.00th=[ 4597], 99.50th=[ 4799], 99.90th=[ 5000], 99.95th=[ 5336], | 99.99th=[ 5336] bw ( KiB/s): min= 7, max= 126, per=27.88%, avg=27.04, stdev=16.14, samples=728 iops : min= 1, max= 31, avg= 6.09, stdev= 4.05, samples=728 lat (msec) : 1000=0.98%, 2000=17.15%, >=2000=81.88% cpu : usr=0.05%, sys=0.28%, ctx=1887, 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=147506: Thu Jun 18 19:26:24 2026 write: IOPS=6, BW=24.3KiB/s (24.9kB/s)(10.0MiB/421188msec); 0 zone resets slat (usec): min=55, max=45485, avg=1039.02, stdev=2700.02 clat (msec): min=402, max=5609, avg=2630.21, stdev=695.23 lat (msec): min=403, max=5609, avg=2631.25, stdev=695.26 clat percentiles (msec): | 1.00th=[ 1020], 5.00th=[ 1636], 10.00th=[ 1838], 20.00th=[ 2056], | 30.00th=[ 2265], 40.00th=[ 2400], 50.00th=[ 2567], 60.00th=[ 2735], | 70.00th=[ 2937], 80.00th=[ 3138], 90.00th=[ 3540], 95.00th=[ 3910], | 99.00th=[ 4463], 99.50th=[ 4732], 99.90th=[ 5470], 99.95th=[ 5604], | 99.99th=[ 5604] bw ( KiB/s): min= 7, max= 87, per=28.34%, avg=27.49, stdev=16.12, samples=716 iops : min= 1, max= 21, avg= 6.20, stdev= 4.03, samples=716 lat (msec) : 500=0.16%, 750=0.23%, 1000=0.59%, 2000=15.35%, >=2000=83.67% cpu : usr=0.05%, sys=0.28%, ctx=1797, 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=97.2KiB/s (99.6kB/s), 24.3KiB/s-24.3KiB/s (24.9kB/s-24.9kB/s), io=40.0MiB (41.9MB), run=421033-421188msec 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=147578: Thu Jun 18 19:31:24 2026 read: IOPS=4, BW=18.2KiB/s (18.6kB/s)(5048KiB/277305msec) slat (msec): min=5, max=113, avg=32.16, stdev=15.98 clat (msec): min=81, max=2561, avg=1060.38, stdev=276.43 lat (msec): min=111, max=2584, avg=1092.55, stdev=278.83 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 651], 10.00th=[ 735], 20.00th=[ 835], | 30.00th=[ 919], 40.00th=[ 986], 50.00th=[ 1045], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1267], 90.00th=[ 1401], 95.00th=[ 1519], | 99.00th=[ 1770], 99.50th=[ 1854], 99.90th=[ 2534], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 7, max= 79, per=29.15%, avg=20.99, stdev=12.77, samples=460 iops : min= 1, max= 19, avg= 4.59, stdev= 3.21, samples=460 write: IOPS=4, BW=18.7KiB/s (19.2kB/s)(5192KiB/277305msec); 0 zone resets slat (usec): min=84, max=35736, avg=1126.55, stdev=2727.89 clat (msec): min=583, max=4975, avg=2348.97, stdev=666.46 lat (msec): min=583, max=4976, avg=2350.11, stdev=666.37 clat percentiles (msec): | 1.00th=[ 1062], 5.00th=[ 1368], 10.00th=[ 1569], 20.00th=[ 1787], | 30.00th=[ 1955], 40.00th=[ 2123], 50.00th=[ 2265], 60.00th=[ 2467], | 70.00th=[ 2668], 80.00th=[ 2903], 90.00th=[ 3205], 95.00th=[ 3440], | 99.00th=[ 4279], 99.50th=[ 4665], 99.90th=[ 4933], 99.95th=[ 5000], | 99.99th=[ 5000] bw ( KiB/s): min= 7, max= 79, per=27.62%, avg=20.72, stdev=12.83, samples=476 iops : min= 1, max= 19, avg= 4.52, stdev= 3.22, samples=476 lat (msec) : 100=0.04%, 250=0.20%, 500=0.66%, 750=4.61%, 1000=15.90% lat (msec) : 2000=44.45%, >=2000=34.14% cpu : usr=0.08%, sys=0.61%, ctx=4282, 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=147579: Thu Jun 18 19:31:24 2026 read: IOPS=4, BW=17.0KiB/s (18.4kB/s)(4976KiB/276895msec) slat (msec): min=6, max=108, avg=32.41, stdev=16.17 clat (msec): min=38, max=2310, avg=1062.62, stdev=293.14 lat (msec): min=55, max=2370, avg=1095.06, stdev=295.90 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 609], 10.00th=[ 718], 20.00th=[ 835], | 30.00th=[ 927], 40.00th=[ 995], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1435], 95.00th=[ 1569], | 99.00th=[ 1804], 99.50th=[ 1871], 99.90th=[ 2232], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 71, per=28.95%, avg=20.84, stdev=12.57, samples=455 iops : min= 1, max= 17, avg= 4.55, stdev= 3.17, samples=455 write: IOPS=4, BW=19.0KiB/s (19.5kB/s)(5264KiB/276895msec); 0 zone resets slat (usec): min=84, max=45402, avg=1075.16, stdev=2611.21 clat (msec): min=509, max=4938, avg=2324.54, stdev=657.14 lat (msec): min=509, max=4940, avg=2325.63, stdev=657.11 clat percentiles (msec): | 1.00th=[ 835], 5.00th=[ 1351], 10.00th=[ 1536], 20.00th=[ 1754], | 30.00th=[ 1955], 40.00th=[ 2140], 50.00th=[ 2265], 60.00th=[ 2467], | 70.00th=[ 2668], 80.00th=[ 2869], 90.00th=[ 3138], 95.00th=[ 3440], | 99.00th=[ 4077], 99.50th=[ 4396], 99.90th=[ 4866], 99.95th=[ 4933], | 99.99th=[ 4933] bw ( KiB/s): min= 7, max= 87, per=27.61%, avg=20.71, stdev=12.59, samples=484 iops : min= 1, max= 21, avg= 4.52, stdev= 3.15, samples=484 lat (msec) : 50=0.04%, 100=0.08%, 250=0.39%, 500=0.70%, 750=5.20% lat (msec) : 1000=14.14%, 2000=44.84%, >=2000=34.61% cpu : usr=0.10%, sys=0.62%, ctx=4372, 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=147580: Thu Jun 18 19:31:24 2026 read: IOPS=4, BW=18.0KiB/s (18.4kB/s)(4984KiB/276721msec) slat (usec): min=90, max=111937, avg=31887.97, stdev=16469.00 clat (msec): min=41, max=2716, avg=1057.41, stdev=290.97 lat (msec): min=52, max=2758, avg=1089.32, stdev=293.53 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 625], 10.00th=[ 718], 20.00th=[ 835], | 30.00th=[ 911], 40.00th=[ 978], 50.00th=[ 1036], 60.00th=[ 1116], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1435], 95.00th=[ 1552], | 99.00th=[ 1770], 99.50th=[ 1821], 99.90th=[ 1938], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 7, max= 87, per=28.65%, avg=20.63, stdev=12.91, samples=462 iops : min= 1, max= 21, avg= 4.50, stdev= 3.24, samples=462 write: IOPS=4, BW=18.0KiB/s (19.4kB/s)(5256KiB/276721msec); 0 zone resets slat (usec): min=75, max=37370, avg=1115.49, stdev=2558.97 clat (msec): min=269, max=4998, avg=2333.62, stdev=677.91 lat (msec): min=270, max=4998, avg=2334.75, stdev=677.98 clat percentiles (msec): | 1.00th=[ 776], 5.00th=[ 1301], 10.00th=[ 1552], 20.00th=[ 1787], | 30.00th=[ 1938], 40.00th=[ 2106], 50.00th=[ 2265], 60.00th=[ 2467], | 70.00th=[ 2668], 80.00th=[ 2937], 90.00th=[ 3205], 95.00th=[ 3473], | 99.00th=[ 3977], 99.50th=[ 4279], 99.90th=[ 4866], 99.95th=[ 5000], | 99.99th=[ 5000] bw ( KiB/s): min= 7, max= 79, per=27.88%, avg=20.91, stdev=12.95, samples=476 iops : min= 1, max= 19, avg= 4.57, stdev= 3.27, samples=476 lat (msec) : 50=0.04%, 100=0.08%, 250=0.31%, 500=1.02%, 750=4.84% lat (msec) : 1000=16.17%, 2000=43.55%, >=2000=33.98% cpu : usr=0.07%, sys=0.59%, ctx=4114, 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=147581: Thu Jun 18 19:31:24 2026 read: IOPS=4, BW=18.3KiB/s (18.7kB/s)(5060KiB/277176msec) slat (msec): min=4, max=115, avg=31.71, stdev=15.45 clat (msec): min=66, max=2563, avg=1065.31, stdev=286.19 lat (msec): min=147, max=2619, avg=1097.03, stdev=287.60 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 634], 10.00th=[ 726], 20.00th=[ 835], | 30.00th=[ 919], 40.00th=[ 986], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1183], 80.00th=[ 1267], 90.00th=[ 1452], 95.00th=[ 1552], | 99.00th=[ 1787], 99.50th=[ 1838], 99.90th=[ 2165], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 7, max= 95, per=28.92%, avg=20.83, stdev=13.16, samples=464 iops : min= 1, max= 23, avg= 4.55, stdev= 3.30, samples=464 write: IOPS=4, BW=18.7KiB/s (19.1kB/s)(5180KiB/277176msec); 0 zone resets slat (usec): min=68, max=45359, avg=1196.92, stdev=3037.75 clat (msec): min=662, max=4992, avg=2345.69, stdev=658.73 lat (msec): min=663, max=4992, avg=2346.90, stdev=658.70 clat percentiles (msec): | 1.00th=[ 1028], 5.00th=[ 1418], 10.00th=[ 1586], 20.00th=[ 1770], | 30.00th=[ 1955], 40.00th=[ 2106], 50.00th=[ 2299], 60.00th=[ 2433], | 70.00th=[ 2668], 80.00th=[ 2903], 90.00th=[ 3171], 95.00th=[ 3507], | 99.00th=[ 4329], 99.50th=[ 4665], 99.90th=[ 4933], 99.95th=[ 5000], | 99.99th=[ 5000] bw ( KiB/s): min= 7, max= 79, per=26.98%, avg=20.24, stdev=12.10, samples=486 iops : min= 1, max= 19, avg= 4.40, stdev= 3.04, samples=486 lat (msec) : 100=0.04%, 250=0.20%, 500=0.94%, 750=4.84%, 1000=15.43% lat (msec) : 2000=44.57%, >=2000=33.98% cpu : usr=0.07%, sys=0.60%, ctx=4178, 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=72.4KiB/s (74.1kB/s), 17.0KiB/s-18.3KiB/s (18.4kB/s-18.7kB/s), io=19.6MiB (20.5MB), run=276721-277305msec WRITE: bw=75.3KiB/s (77.1kB/s), 18.7KiB/s-19.0KiB/s (19.1kB/s-19.5kB/s), io=20.4MiB (21.4MB), run=276721-277305msec 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=147629: Thu Jun 18 19:31:54 2026 read: IOPS=0, BW=32.9MiB/s (34.5MB/s)(40.0MiB/1214msec) slat (nsec): min=160287k, max=160287k, avg=160287015.00, stdev= 0.00 clat (nsec): min=1001.9M, max=1001.9M, avg=1001940398.00, stdev= 0.00 lat (nsec): min=1162.2M, max=1162.2M, avg=1162232297.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1003], 5.00th=[ 1003], 10.00th=[ 1003], 20.00th=[ 1003], | 30.00th=[ 1003], 40.00th=[ 1003], 50.00th=[ 1003], 60.00th=[ 1003], | 70.00th=[ 1003], 80.00th=[ 1003], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] lat (msec) : 2000=100.00% cpu : usr=0.00%, sys=1.57%, ctx=21, 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=32.9MiB/s (34.5MB/s), 32.9MiB/s-32.9MiB/s (34.5MB/s-34.5MB/s), io=40.0MiB (41.9MB), run=1214-1214msec 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