== sanity test 398c: run fio to test AIO ================= 23:37:15 (1789270635) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.55535 s, 75.5 MB/s osc.lustre-OST0000-osc-ffff8c5570fca000.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=145682: Sat Sep 12 23:40:47 2026 write: IOPS=12, BW=51.2KiB/s (52.4kB/s)(10.0MiB/200099msec); 0 zone resets slat (usec): min=28, max=22817, avg=308.51, stdev=1209.97 clat (msec): min=217, max=2452, avg=1248.94, stdev=345.66 lat (msec): min=218, max=2452, avg=1249.25, stdev=345.66 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 743], 10.00th=[ 852], 20.00th=[ 953], | 30.00th=[ 1053], 40.00th=[ 1150], 50.00th=[ 1250], 60.00th=[ 1334], | 70.00th=[ 1418], 80.00th=[ 1519], 90.00th=[ 1670], 95.00th=[ 1821], | 99.00th=[ 2265], 99.50th=[ 2333], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 128, per=26.18%, avg=53.42, stdev=30.00, samples=375 iops : min= 1, max= 32, avg=12.80, stdev= 7.51, samples=375 lat (msec) : 250=0.62%, 500=0.94%, 750=3.55%, 1000=19.22%, 2000=73.40% lat (msec) : >=2000=2.27% cpu : usr=0.05%, sys=0.23%, ctx=1628, 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=145683: Sat Sep 12 23:40:47 2026 write: IOPS=12, BW=51.3KiB/s (52.5kB/s)(10.0MiB/199687msec); 0 zone resets slat (usec): min=27, max=30008, avg=275.03, stdev=1194.74 clat (msec): min=225, max=3024, avg=1246.23, stdev=347.53 lat (msec): min=225, max=3024, avg=1246.51, stdev=347.56 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 735], 10.00th=[ 844], 20.00th=[ 961], | 30.00th=[ 1070], 40.00th=[ 1167], 50.00th=[ 1250], 60.00th=[ 1318], | 70.00th=[ 1401], 80.00th=[ 1485], 90.00th=[ 1670], 95.00th=[ 1854], | 99.00th=[ 2165], 99.50th=[ 2265], 99.90th=[ 2567], 99.95th=[ 2869], | 99.99th=[ 3037] bw ( KiB/s): min= 7, max= 128, per=26.69%, avg=54.45, stdev=29.96, samples=368 iops : min= 1, max= 32, avg=13.06, stdev= 7.51, samples=368 lat (msec) : 250=0.62%, 500=1.88%, 750=3.28%, 1000=18.24%, 2000=73.28% lat (msec) : >=2000=2.70% cpu : usr=0.05%, sys=0.22%, ctx=1646, 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=145684: Sat Sep 12 23:40:47 2026 write: IOPS=12, BW=51.2KiB/s (52.5kB/s)(10.0MiB/199885msec); 0 zone resets slat (usec): min=27, max=22534, avg=283.62, stdev=1030.99 clat (msec): min=244, max=2812, avg=1247.52, stdev=337.35 lat (msec): min=244, max=2812, avg=1247.81, stdev=337.36 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 726], 10.00th=[ 844], 20.00th=[ 978], | 30.00th=[ 1083], 40.00th=[ 1167], 50.00th=[ 1250], 60.00th=[ 1334], | 70.00th=[ 1401], 80.00th=[ 1485], 90.00th=[ 1636], 95.00th=[ 1770], | 99.00th=[ 2232], 99.50th=[ 2333], 99.90th=[ 2702], 99.95th=[ 2769], | 99.99th=[ 2802] bw ( KiB/s): min= 7, max= 143, per=25.97%, avg=52.99, stdev=30.28, samples=378 iops : min= 1, max= 35, avg=12.70, stdev= 7.60, samples=378 lat (msec) : 250=0.62%, 500=1.88%, 750=3.32%, 1000=16.88%, 2000=75.47% lat (msec) : >=2000=1.84% cpu : usr=0.05%, sys=0.21%, ctx=1613, 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=145685: Sat Sep 12 23:40:47 2026 write: IOPS=12, BW=51.2KiB/s (52.4kB/s)(10.0MiB/200101msec); 0 zone resets slat (usec): min=27, max=20599, avg=295.00, stdev=974.37 clat (msec): min=153, max=2830, avg=1249.66, stdev=347.59 lat (msec): min=153, max=2830, avg=1249.96, stdev=347.59 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 718], 10.00th=[ 835], 20.00th=[ 978], | 30.00th=[ 1083], 40.00th=[ 1167], 50.00th=[ 1250], 60.00th=[ 1334], | 70.00th=[ 1401], 80.00th=[ 1485], 90.00th=[ 1703], 95.00th=[ 1838], | 99.00th=[ 2165], 99.50th=[ 2299], 99.90th=[ 2668], 99.95th=[ 2836], | 99.99th=[ 2836] bw ( KiB/s): min= 7, max= 167, per=25.33%, avg=51.68, stdev=31.37, samples=387 iops : min= 1, max= 41, avg=12.36, stdev= 7.85, samples=387 lat (msec) : 250=0.35%, 500=1.52%, 750=4.18%, 1000=16.25%, 2000=75.55% lat (msec) : >=2000=2.15% cpu : usr=0.05%, sys=0.22%, ctx=1804, 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=205KiB/s (210kB/s), 51.2KiB/s-51.3KiB/s (52.4kB/s-52.5kB/s), io=40.0MiB (41.9MB), run=199687-200101msec 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=145725: Sat Sep 12 23:43:21 2026 read: IOPS=8, BW=34.9KiB/s (35.8kB/s)(5048KiB/144529msec) slat (usec): min=33, max=96849, avg=18564.48, stdev=10921.74 clat (msec): min=38, max=1648, avg=572.55, stdev=170.89 lat (msec): min=55, max=1663, avg=591.13, stdev=173.61 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 338], 10.00th=[ 384], 20.00th=[ 435], | 30.00th=[ 477], 40.00th=[ 514], 50.00th=[ 550], 60.00th=[ 592], | 70.00th=[ 642], 80.00th=[ 701], 90.00th=[ 802], 95.00th=[ 869], | 99.00th=[ 1053], 99.50th=[ 1116], 99.90th=[ 1435], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 7, max= 103, per=25.51%, avg=35.20, stdev=17.98, samples=279 iops : min= 1, max= 25, avg= 8.25, stdev= 4.54, samples=279 write: IOPS=8, BW=35.9KiB/s (36.8kB/s)(5192KiB/144529msec); 0 zone resets slat (usec): min=32, max=25572, avg=426.07, stdev=1509.40 clat (msec): min=160, max=2411, avg=1204.68, stdev=355.24 lat (msec): min=161, max=2411, avg=1205.11, stdev=355.27 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 667], 10.00th=[ 776], 20.00th=[ 894], | 30.00th=[ 995], 40.00th=[ 1099], 50.00th=[ 1183], 60.00th=[ 1267], | 70.00th=[ 1385], 80.00th=[ 1502], 90.00th=[ 1687], 95.00th=[ 1854], | 99.00th=[ 2089], 99.50th=[ 2140], 99.90th=[ 2265], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 88, per=25.23%, avg=36.08, stdev=17.16, samples=280 iops : min= 1, max= 22, avg= 8.46, stdev= 4.33, samples=280 lat (msec) : 50=0.12%, 100=0.08%, 250=0.43%, 500=18.16%, 750=27.23% lat (msec) : 1000=17.97%, 2000=34.88%, >=2000=1.13% cpu : usr=0.10%, sys=0.57%, ctx=4188, 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=145726: Sat Sep 12 23:43:21 2026 read: IOPS=8, BW=34.2KiB/s (35.1kB/s)(4976KiB/145289msec) slat (msec): min=3, max=556, avg=19.44, stdev=18.74 clat (msec): min=32, max=1207, avg=570.90, stdev=169.03 lat (msec): min=54, max=1231, avg=590.35, stdev=170.99 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 338], 10.00th=[ 376], 20.00th=[ 426], | 30.00th=[ 472], 40.00th=[ 514], 50.00th=[ 550], 60.00th=[ 592], | 70.00th=[ 651], 80.00th=[ 709], 90.00th=[ 802], 95.00th=[ 869], | 99.00th=[ 1028], 99.50th=[ 1133], 99.90th=[ 1183], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 95, per=25.17%, avg=34.73, stdev=19.44, samples=277 iops : min= 1, max= 23, avg= 8.13, stdev= 4.89, samples=277 write: IOPS=9, BW=36.2KiB/s (37.1kB/s)(5264KiB/145289msec); 0 zone resets slat (usec): min=26, max=19862, avg=383.10, stdev=1357.58 clat (msec): min=249, max=2496, avg=1204.15, stdev=354.25 lat (msec): min=249, max=2496, avg=1204.54, stdev=354.32 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 642], 10.00th=[ 751], 20.00th=[ 894], | 30.00th=[ 1011], 40.00th=[ 1116], 50.00th=[ 1183], 60.00th=[ 1267], | 70.00th=[ 1368], 80.00th=[ 1485], 90.00th=[ 1687], 95.00th=[ 1854], | 99.00th=[ 2056], 99.50th=[ 2198], 99.90th=[ 2333], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 103, per=25.48%, avg=36.44, stdev=18.11, samples=280 iops : min= 1, max= 25, avg= 8.55, stdev= 4.57, samples=280 lat (msec) : 50=0.08%, 100=0.20%, 250=0.23%, 500=17.46%, 750=28.52% lat (msec) : 1000=16.09%, 2000=36.45%, >=2000=0.98% cpu : usr=0.08%, sys=0.54%, ctx=4151, 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=145727: Sat Sep 12 23:43:21 2026 read: IOPS=8, BW=34.3KiB/s (35.2kB/s)(4984KiB/145131msec) slat (msec): min=2, max=118, avg=18.63, stdev=10.69 clat (msec): min=36, max=1143, avg=578.21, stdev=165.09 lat (msec): min=49, max=1184, avg=596.85, stdev=167.42 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 355], 10.00th=[ 388], 20.00th=[ 435], | 30.00th=[ 481], 40.00th=[ 518], 50.00th=[ 558], 60.00th=[ 600], | 70.00th=[ 651], 80.00th=[ 709], 90.00th=[ 810], 95.00th=[ 885], | 99.00th=[ 1020], 99.50th=[ 1053], 99.90th=[ 1133], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 103, per=24.99%, avg=34.49, stdev=19.02, samples=282 iops : min= 1, max= 25, avg= 8.07, stdev= 4.79, samples=282 write: IOPS=9, BW=36.2KiB/s (37.1kB/s)(5256KiB/145131msec); 0 zone resets slat (usec): min=31, max=17740, avg=340.58, stdev=1111.03 clat (msec): min=232, max=2469, avg=1197.08, stdev=350.95 lat (msec): min=233, max=2469, avg=1197.42, stdev=351.00 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 659], 10.00th=[ 768], 20.00th=[ 894], | 30.00th=[ 1003], 40.00th=[ 1083], 50.00th=[ 1167], 60.00th=[ 1250], | 70.00th=[ 1368], 80.00th=[ 1485], 90.00th=[ 1670], 95.00th=[ 1838], | 99.00th=[ 2089], 99.50th=[ 2140], 99.90th=[ 2400], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 95, per=25.09%, avg=35.88, stdev=17.26, samples=284 iops : min= 1, max= 23, avg= 8.42, stdev= 4.32, samples=284 lat (msec) : 50=0.12%, 250=0.27%, 500=17.50%, 750=27.15%, 1000=18.36% lat (msec) : 2000=35.74%, >=2000=0.86% cpu : usr=0.10%, sys=0.58%, ctx=4267, 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=145728: Sat Sep 12 23:43:21 2026 read: IOPS=8, BW=34.9KiB/s (35.8kB/s)(5060KiB/144817msec) slat (msec): min=2, max=101, avg=18.88, stdev=10.75 clat (msec): min=22, max=1349, avg=581.01, stdev=165.73 lat (msec): min=36, max=1368, avg=599.90, stdev=168.21 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 363], 10.00th=[ 401], 20.00th=[ 443], | 30.00th=[ 481], 40.00th=[ 523], 50.00th=[ 558], 60.00th=[ 600], | 70.00th=[ 651], 80.00th=[ 718], 90.00th=[ 810], 95.00th=[ 877], | 99.00th=[ 1036], 99.50th=[ 1053], 99.90th=[ 1167], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 112, per=25.44%, avg=35.11, stdev=17.96, samples=281 iops : min= 1, max= 28, avg= 8.23, stdev= 4.51, samples=281 write: IOPS=8, BW=35.8KiB/s (36.6kB/s)(5180KiB/144817msec); 0 zone resets slat (usec): min=29, max=21678, avg=400.68, stdev=1383.08 clat (msec): min=287, max=2459, avg=1198.90, stdev=342.06 lat (msec): min=291, max=2459, avg=1199.31, stdev=342.03 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 693], 10.00th=[ 785], 20.00th=[ 885], | 30.00th=[ 1003], 40.00th=[ 1099], 50.00th=[ 1183], 60.00th=[ 1267], | 70.00th=[ 1368], 80.00th=[ 1469], 90.00th=[ 1653], 95.00th=[ 1770], | 99.00th=[ 2089], 99.50th=[ 2198], 99.90th=[ 2400], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 95, per=25.05%, avg=35.82, stdev=18.35, samples=281 iops : min= 1, max= 23, avg= 8.40, stdev= 4.62, samples=281 lat (msec) : 50=0.16%, 100=0.12%, 250=0.16%, 500=17.07%, 750=28.28% lat (msec) : 1000=18.05%, 2000=35.35%, >=2000=0.82% cpu : usr=0.10%, sys=0.65%, ctx=4556, 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=138KiB/s (141kB/s), 34.2KiB/s-34.9KiB/s (35.1kB/s-35.8kB/s), io=19.6MiB (20.5MB), run=144529-145289msec WRITE: bw=144KiB/s (147kB/s), 35.8KiB/s-36.2KiB/s (36.6kB/s-37.1kB/s), io=20.4MiB (21.4MB), run=144529-145289msec 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=145753: Sat Sep 12 23:43:33 2026 read: IOPS=1, BW=54.1MiB/s (56.8MB/s)(40.0MiB/739msec) slat (nsec): min=71044k, max=71044k, avg=71044301.00, stdev= 0.00 clat (nsec): min=634700k, max=634700k, avg=634700318.00, stdev= 0.00 lat (nsec): min=705779k, max=705779k, avg=705779015.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 634], | 70.00th=[ 634], 80.00th=[ 634], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.90%, ctx=17, 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=54.1MiB/s (56.8MB/s), 54.1MiB/s-54.1MiB/s (56.8MB/s-56.8MB/s), io=40.0MiB (41.9MB), run=739-739msec 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