== sanity test 398c: run fio to test AIO ================= 00:15:12 (1780978512) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.676245 s, 62.0 MB/s osc.lustre-OST0000-osc-ffff93b7d035d800.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=123345: Tue Jun 9 00:18:21 2026 write: IOPS=14, BW=58.5KiB/s (59.9kB/s)(10.0MiB/175024msec); 0 zone resets slat (usec): min=19, max=25439, avg=265.40, stdev=1142.60 clat (msec): min=88, max=2538, avg=1092.89, stdev=407.23 lat (msec): min=90, max=2538, avg=1093.15, stdev=407.24 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 542], 10.00th=[ 651], 20.00th=[ 768], | 30.00th=[ 835], 40.00th=[ 919], 50.00th=[ 1020], 60.00th=[ 1116], | 70.00th=[ 1250], 80.00th=[ 1435], 90.00th=[ 1636], 95.00th=[ 1838], | 99.00th=[ 2333], 99.50th=[ 2433], 99.90th=[ 2500], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 181, per=25.66%, avg=60.04, stdev=34.19, samples=335 iops : min= 1, max= 45, avg=14.52, stdev= 8.58, samples=335 lat (msec) : 100=0.04%, 500=3.87%, 750=14.96%, 1000=28.75%, 2000=49.34% lat (msec) : >=2000=3.05% cpu : usr=0.05%, sys=0.22%, ctx=1596, 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=123346: Tue Jun 9 00:18:21 2026 write: IOPS=14, BW=58.5KiB/s (59.9kB/s)(10.0MiB/175019msec); 0 zone resets slat (usec): min=18, max=31490, avg=319.08, stdev=1492.80 clat (msec): min=148, max=2564, avg=1093.24, stdev=413.43 lat (msec): min=148, max=2564, avg=1093.56, stdev=413.49 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 542], 10.00th=[ 642], 20.00th=[ 768], | 30.00th=[ 844], 40.00th=[ 936], 50.00th=[ 1028], 60.00th=[ 1133], | 70.00th=[ 1250], 80.00th=[ 1418], 90.00th=[ 1653], 95.00th=[ 1871], | 99.00th=[ 2333], 99.50th=[ 2467], 99.90th=[ 2567], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 7, max= 207, per=25.13%, avg=58.80, stdev=35.51, samples=342 iops : min= 1, max= 51, avg=14.20, stdev= 8.89, samples=342 lat (msec) : 250=0.59%, 500=3.24%, 750=15.23%, 1000=28.24%, 2000=49.38% lat (msec) : >=2000=3.32% cpu : usr=0.04%, sys=0.24%, ctx=1560, 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=123347: Tue Jun 9 00:18:21 2026 write: IOPS=14, BW=58.6KiB/s (60.0kB/s)(10.0MiB/174675msec); 0 zone resets slat (usec): min=20, max=39379, avg=259.05, stdev=1285.68 clat (msec): min=91, max=2618, avg=1090.60, stdev=405.73 lat (msec): min=91, max=2618, avg=1090.86, stdev=405.74 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 567], 10.00th=[ 651], 20.00th=[ 743], | 30.00th=[ 835], 40.00th=[ 919], 50.00th=[ 1020], 60.00th=[ 1133], | 70.00th=[ 1250], 80.00th=[ 1418], 90.00th=[ 1653], 95.00th=[ 1821], | 99.00th=[ 2265], 99.50th=[ 2366], 99.90th=[ 2534], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 7, max= 149, per=25.58%, avg=59.86, stdev=32.55, samples=336 iops : min= 1, max= 37, avg=14.47, stdev= 8.17, samples=336 lat (msec) : 100=0.04%, 500=3.09%, 750=17.73%, 1000=27.81%, 2000=48.09% lat (msec) : >=2000=3.24% cpu : usr=0.06%, sys=0.26%, ctx=1813, 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=123348: Tue Jun 9 00:18:21 2026 write: IOPS=14, BW=58.6KiB/s (60.0kB/s)(10.0MiB/174758msec); 0 zone resets slat (usec): min=21, max=22930, avg=295.24, stdev=1266.54 clat (msec): min=268, max=2563, avg=1091.22, stdev=408.67 lat (msec): min=268, max=2563, avg=1091.52, stdev=408.67 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 550], 10.00th=[ 642], 20.00th=[ 751], | 30.00th=[ 844], 40.00th=[ 927], 50.00th=[ 1020], 60.00th=[ 1133], | 70.00th=[ 1250], 80.00th=[ 1401], 90.00th=[ 1636], 95.00th=[ 1854], | 99.00th=[ 2366], 99.50th=[ 2433], 99.90th=[ 2567], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 8, max= 165, per=25.35%, avg=59.33, stdev=30.69, samples=339 iops : min= 2, max= 41, avg=14.34, stdev= 7.70, samples=339 lat (msec) : 500=3.40%, 750=16.80%, 1000=27.54%, 2000=49.10%, >=2000=3.16% cpu : usr=0.05%, sys=0.24%, ctx=1698, 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 Run status group 0 (all jobs): WRITE: bw=234KiB/s (240kB/s), 58.5KiB/s-58.6KiB/s (59.9kB/s-60.0kB/s), io=40.0MiB (41.9MB), run=174675-175024msec 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=123383: Tue Jun 9 00:20:28 2026 read: IOPS=10, BW=43.8KiB/s (44.9kB/s)(5048KiB/115148msec) slat (usec): min=1561, max=61235, avg=12757.61, stdev=8681.28 clat (msec): min=24, max=1122, avg=448.44, stdev=167.69 lat (msec): min=30, max=1156, avg=461.21, stdev=170.15 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 230], 10.00th=[ 266], 20.00th=[ 317], | 30.00th=[ 351], 40.00th=[ 384], 50.00th=[ 418], 60.00th=[ 460], | 70.00th=[ 502], 80.00th=[ 567], 90.00th=[ 684], 95.00th=[ 793], | 99.00th=[ 944], 99.50th=[ 986], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 152, per=25.28%, avg=43.99, stdev=24.73, samples=224 iops : min= 1, max= 38, avg=10.52, stdev= 6.22, samples=224 write: IOPS=11, BW=45.1KiB/s (46.2kB/s)(5192KiB/115148msec); 0 zone resets slat (usec): min=23, max=18605, avg=271.34, stdev=990.88 clat (msec): min=302, max=2263, avg=968.36, stdev=358.55 lat (msec): min=302, max=2263, avg=968.63, stdev=358.59 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 481], 10.00th=[ 542], 20.00th=[ 667], | 30.00th=[ 751], 40.00th=[ 835], 50.00th=[ 911], 60.00th=[ 1003], | 70.00th=[ 1099], 80.00th=[ 1234], 90.00th=[ 1502], 95.00th=[ 1687], | 99.00th=[ 1938], 99.50th=[ 2039], 99.90th=[ 2198], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 111, per=24.72%, avg=44.74, stdev=22.97, samples=227 iops : min= 1, max= 27, avg=10.70, stdev= 5.74, samples=227 lat (msec) : 50=0.08%, 100=0.12%, 250=3.44%, 500=34.22%, 750=23.44% lat (msec) : 1000=17.81%, 2000=20.62%, >=2000=0.27% cpu : usr=0.11%, sys=0.56%, ctx=3260, 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=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=123384: Tue Jun 9 00:20:28 2026 read: IOPS=10, BW=43.2KiB/s (44.2kB/s)(4976KiB/115261msec) slat (usec): min=1760, max=60122, avg=12800.70, stdev=8528.43 clat (msec): min=19, max=1178, avg=445.86, stdev=161.61 lat (msec): min=47, max=1192, avg=458.66, stdev=163.64 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 228], 10.00th=[ 271], 20.00th=[ 317], | 30.00th=[ 351], 40.00th=[ 384], 50.00th=[ 414], 60.00th=[ 460], | 70.00th=[ 506], 80.00th=[ 558], 90.00th=[ 667], 95.00th=[ 768], | 99.00th=[ 919], 99.50th=[ 961], 99.90th=[ 1167], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 7, max= 151, per=25.13%, avg=43.72, stdev=26.28, samples=222 iops : min= 1, max= 37, avg=10.44, stdev= 6.56, samples=222 write: IOPS=11, BW=45.7KiB/s (46.8kB/s)(5264KiB/115261msec); 0 zone resets slat (usec): min=25, max=41000, avg=306.65, stdev=1528.06 clat (msec): min=287, max=2300, avg=965.90, stdev=369.36 lat (msec): min=287, max=2300, avg=966.20, stdev=369.40 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 456], 10.00th=[ 531], 20.00th=[ 651], | 30.00th=[ 743], 40.00th=[ 827], 50.00th=[ 919], 60.00th=[ 1003], | 70.00th=[ 1116], 80.00th=[ 1250], 90.00th=[ 1519], 95.00th=[ 1687], | 99.00th=[ 1972], 99.50th=[ 2039], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 127, per=25.36%, avg=45.90, stdev=22.96, samples=224 iops : min= 1, max= 31, avg=10.99, stdev= 5.76, samples=224 lat (msec) : 20=0.04%, 100=0.08%, 250=3.20%, 500=34.69%, 750=23.48% lat (msec) : 1000=17.66%, 2000=20.39%, >=2000=0.47% cpu : usr=0.09%, sys=0.64%, ctx=3322, majf=0, minf=16 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=123385: Tue Jun 9 00:20:28 2026 read: IOPS=10, BW=43.2KiB/s (44.3kB/s)(4984KiB/115263msec) slat (usec): min=33, max=67519, avg=13012.85, stdev=9104.89 clat (msec): min=35, max=1042, avg=443.41, stdev=162.61 lat (msec): min=57, max=1069, avg=456.43, stdev=164.76 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 230], 10.00th=[ 266], 20.00th=[ 317], | 30.00th=[ 347], 40.00th=[ 376], 50.00th=[ 409], 60.00th=[ 451], | 70.00th=[ 502], 80.00th=[ 567], 90.00th=[ 667], 95.00th=[ 776], | 99.00th=[ 927], 99.50th=[ 1003], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 112, per=24.89%, avg=43.32, stdev=23.49, samples=225 iops : min= 1, max= 28, avg=10.35, stdev= 5.86, samples=225 write: IOPS=11, BW=45.6KiB/s (46.7kB/s)(5256KiB/115263msec); 0 zone resets slat (usec): min=24, max=31645, avg=392.93, stdev=1651.98 clat (msec): min=171, max=2317, avg=969.22, stdev=368.04 lat (msec): min=171, max=2317, avg=969.61, stdev=368.08 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 439], 10.00th=[ 523], 20.00th=[ 651], | 30.00th=[ 751], 40.00th=[ 844], 50.00th=[ 927], 60.00th=[ 1028], | 70.00th=[ 1116], 80.00th=[ 1250], 90.00th=[ 1502], 95.00th=[ 1670], | 99.00th=[ 1938], 99.50th=[ 2072], 99.90th=[ 2299], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 127, per=25.06%, avg=45.36, stdev=21.96, samples=225 iops : min= 1, max= 31, avg=10.86, stdev= 5.54, samples=225 lat (msec) : 50=0.04%, 100=0.16%, 250=3.75%, 500=34.10%, 750=22.85% lat (msec) : 1000=17.38%, 2000=21.41%, >=2000=0.31% cpu : usr=0.13%, sys=0.65%, ctx=3303, 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=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=123386: Tue Jun 9 00:20:28 2026 read: IOPS=10, BW=43.9KiB/s (44.0kB/s)(5060KiB/115206msec) slat (usec): min=1456, max=71739, avg=12620.12, stdev=8808.61 clat (msec): min=12, max=1103, avg=448.81, stdev=166.34 lat (msec): min=20, max=1132, avg=461.44, stdev=168.41 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 230], 10.00th=[ 275], 20.00th=[ 317], | 30.00th=[ 351], 40.00th=[ 388], 50.00th=[ 418], 60.00th=[ 460], | 70.00th=[ 498], 80.00th=[ 567], 90.00th=[ 667], 95.00th=[ 776], | 99.00th=[ 978], 99.50th=[ 1062], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 140, per=25.26%, avg=43.95, stdev=23.83, samples=225 iops : min= 1, max= 35, avg=10.51, stdev= 5.98, samples=225 write: IOPS=11, BW=44.0KiB/s (46.0kB/s)(5180KiB/115206msec); 0 zone resets slat (usec): min=21, max=19711, avg=359.43, stdev=1463.04 clat (msec): min=219, max=2312, avg=970.38, stdev=362.41 lat (msec): min=219, max=2312, avg=970.74, stdev=362.42 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 477], 10.00th=[ 542], 20.00th=[ 651], | 30.00th=[ 760], 40.00th=[ 852], 50.00th=[ 919], 60.00th=[ 995], | 70.00th=[ 1116], 80.00th=[ 1250], 90.00th=[ 1485], 95.00th=[ 1670], | 99.00th=[ 1938], 99.50th=[ 2140], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 125, per=24.97%, avg=45.19, stdev=22.16, samples=224 iops : min= 1, max= 31, avg=10.82, stdev= 5.60, samples=224 lat (msec) : 20=0.04%, 50=0.12%, 100=0.08%, 250=3.36%, 500=34.88% lat (msec) : 750=22.70%, 1000=18.32%, 2000=20.08%, >=2000=0.43% cpu : usr=0.11%, sys=0.66%, ctx=3239, majf=0, minf=16 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=174KiB/s (178kB/s), 43.2KiB/s-43.9KiB/s (44.2kB/s-44.0kB/s), io=19.6MiB (20.5MB), run=115148-115263msec WRITE: bw=181KiB/s (186kB/s), 44.0KiB/s-45.7KiB/s (46.0kB/s-46.8kB/s), io=20.4MiB (21.4MB), run=115148-115263msec 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=123407: Tue Jun 9 00:20:40 2026 read: IOPS=1, BW=72.2MiB/s (75.7MB/s)(40.0MiB/554msec) slat (nsec): min=28751k, max=28751k, avg=28750947.00, stdev= 0.00 clat (nsec): min=512576k, max=512576k, avg=512575731.00, stdev= 0.00 lat (nsec): min=541360k, max=541360k, avg=541359800.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 514], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.99%, ctx=2, 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=72.2MiB/s (75.7MB/s), 72.2MiB/s-72.2MiB/s (75.7MB/s-75.7MB/s), io=40.0MiB (41.9MB), run=554-554msec debug=super ioctl neterror warning dlmtrace error emerg ha rpctrace vfstrace config console lfsck