== sanity test 398c: run fio to test AIO ================= 03:28:59 (1789025339) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.491278 s, 85.4 MB/s osc.lustre-OST0000-osc-ffff958c50a22000.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=146639: Thu Sep 10 03:31:57 2026 write: IOPS=15, BW=61.3KiB/s (62.7kB/s)(10.0MiB/167118msec); 0 zone resets slat (usec): min=29, max=20987, avg=192.49, stdev=1033.49 clat (msec): min=271, max=2194, avg=1042.97, stdev=308.82 lat (msec): min=271, max=2194, avg=1043.16, stdev=308.84 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 567], 10.00th=[ 667], 20.00th=[ 793], | 30.00th=[ 869], 40.00th=[ 944], 50.00th=[ 1011], 60.00th=[ 1099], | 70.00th=[ 1200], 80.00th=[ 1301], 90.00th=[ 1435], 95.00th=[ 1569], | 99.00th=[ 1888], 99.50th=[ 1938], 99.90th=[ 2072], 99.95th=[ 2072], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 256, per=26.40%, avg=64.68, stdev=33.70, samples=312 iops : min= 1, max= 64, avg=15.76, stdev= 8.46, samples=312 lat (msec) : 500=3.40%, 750=12.93%, 1000=31.56%, 2000=51.88%, >=2000=0.23% cpu : usr=0.04%, sys=0.20%, ctx=1651, 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=146640: Thu Sep 10 03:31:57 2026 write: IOPS=15, BW=61.4KiB/s (62.8kB/s)(10.0MiB/166843msec); 0 zone resets slat (usec): min=29, max=20896, avg=193.15, stdev=977.44 clat (msec): min=244, max=2328, avg=1042.10, stdev=312.48 lat (msec): min=244, max=2328, avg=1042.29, stdev=312.52 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 535], 10.00th=[ 684], 20.00th=[ 793], | 30.00th=[ 877], 40.00th=[ 953], 50.00th=[ 1020], 60.00th=[ 1099], | 70.00th=[ 1200], 80.00th=[ 1301], 90.00th=[ 1435], 95.00th=[ 1586], | 99.00th=[ 1821], 99.50th=[ 1955], 99.90th=[ 2232], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 256, per=26.75%, avg=65.53, stdev=31.91, samples=308 iops : min= 1, max= 64, avg=15.97, stdev= 7.97, samples=308 lat (msec) : 250=0.62%, 500=3.79%, 750=11.17%, 1000=31.29%, 2000=52.89% lat (msec) : >=2000=0.23% cpu : usr=0.03%, sys=0.18%, ctx=1862, 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=146641: Thu Sep 10 03:31:57 2026 write: IOPS=15, BW=61.3KiB/s (62.7kB/s)(10.0MiB/167117msec); 0 zone resets slat (usec): min=30, max=24224, avg=177.01, stdev=900.65 clat (msec): min=268, max=2268, avg=1042.99, stdev=307.84 lat (msec): min=268, max=2268, avg=1043.17, stdev=307.87 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 550], 10.00th=[ 684], 20.00th=[ 793], | 30.00th=[ 877], 40.00th=[ 944], 50.00th=[ 1011], 60.00th=[ 1099], | 70.00th=[ 1200], 80.00th=[ 1301], 90.00th=[ 1435], 95.00th=[ 1569], | 99.00th=[ 1854], 99.50th=[ 1972], 99.90th=[ 2198], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 255, per=25.82%, avg=63.25, stdev=31.41, samples=319 iops : min= 1, max= 63, avg=15.39, stdev= 7.85, samples=319 lat (msec) : 500=3.79%, 750=11.45%, 1000=33.40%, 2000=51.05%, >=2000=0.31% cpu : usr=0.04%, sys=0.19%, ctx=1542, 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=146642: Thu Sep 10 03:31:57 2026 write: IOPS=15, BW=61.3KiB/s (62.7kB/s)(10.0MiB/167112msec); 0 zone resets slat (usec): min=28, max=25193, avg=206.94, stdev=1045.57 clat (msec): min=218, max=2085, avg=1043.05, stdev=310.45 lat (msec): min=218, max=2085, avg=1043.26, stdev=310.44 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 550], 10.00th=[ 676], 20.00th=[ 802], | 30.00th=[ 869], 40.00th=[ 936], 50.00th=[ 1020], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1284], 90.00th=[ 1435], 95.00th=[ 1586], | 99.00th=[ 1888], 99.50th=[ 1989], 99.90th=[ 2056], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 7, max= 184, per=25.02%, avg=61.30, stdev=30.57, samples=329 iops : min= 1, max= 46, avg=14.91, stdev= 7.62, samples=329 lat (msec) : 250=0.08%, 500=3.59%, 750=11.91%, 1000=32.27%, 2000=51.84% lat (msec) : >=2000=0.31% cpu : usr=0.04%, sys=0.18%, ctx=1599, 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=245KiB/s (251kB/s), 61.3KiB/s-61.4KiB/s (62.7kB/s-62.8kB/s), io=40.0MiB (41.9MB), run=166843-167118msec 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=146676: Thu Sep 10 03:33:47 2026 read: IOPS=12, BW=49.2KiB/s (50.4kB/s)(5048KiB/102611msec) slat (usec): min=2544, max=50574, avg=12953.21, stdev=6938.01 clat (msec): min=21, max=1156, avg=405.11, stdev=119.69 lat (msec): min=30, max=1169, avg=418.06, stdev=120.58 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 271], 10.00th=[ 288], 20.00th=[ 317], | 30.00th=[ 342], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 443], 80.00th=[ 481], 90.00th=[ 542], 95.00th=[ 600], | 99.00th=[ 827], 99.50th=[ 995], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 112, per=25.30%, avg=49.08, stdev=21.37, samples=202 iops : min= 1, max= 28, avg=11.85, stdev= 5.37, samples=202 write: IOPS=12, BW=50.6KiB/s (51.8kB/s)(5192KiB/102611msec); 0 zone resets slat (usec): min=32, max=7315, avg=179.59, stdev=464.91 clat (msec): min=344, max=1889, avg=855.34, stdev=237.24 lat (msec): min=344, max=1889, avg=855.52, stdev=237.24 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 502], 10.00th=[ 575], 20.00th=[ 651], | 30.00th=[ 718], 40.00th=[ 768], 50.00th=[ 835], 60.00th=[ 894], | 70.00th=[ 961], 80.00th=[ 1053], 90.00th=[ 1183], 95.00th=[ 1284], | 99.00th=[ 1485], 99.50th=[ 1603], 99.90th=[ 1871], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 6, max= 120, per=24.86%, avg=50.22, stdev=20.69, samples=203 iops : min= 1, max= 30, avg=12.13, stdev= 5.21, samples=203 lat (msec) : 50=0.20%, 100=0.20%, 250=1.17%, 500=42.54%, 750=23.09% lat (msec) : 1000=19.84%, 2000=12.97% cpu : usr=0.08%, sys=0.63%, ctx=5122, 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=146677: Thu Sep 10 03:33:47 2026 read: IOPS=12, BW=48.3KiB/s (49.5kB/s)(4976KiB/102934msec) slat (msec): min=2, max=436, avg=13.20, stdev=14.08 clat (msec): min=37, max=1046, avg=403.65, stdev=117.16 lat (msec): min=49, max=1076, avg=416.87, stdev=117.86 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 257], 10.00th=[ 284], 20.00th=[ 317], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 384], 60.00th=[ 409], | 70.00th=[ 439], 80.00th=[ 477], 90.00th=[ 542], 95.00th=[ 617], | 99.00th=[ 785], 99.50th=[ 885], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 112, per=24.81%, avg=48.13, stdev=22.62, samples=202 iops : min= 1, max= 28, avg=11.61, stdev= 5.68, samples=202 write: IOPS=12, BW=51.1KiB/s (52.4kB/s)(5264KiB/102934msec); 0 zone resets slat (usec): min=32, max=12485, avg=199.11, stdev=637.67 clat (msec): min=189, max=1883, avg=855.63, stdev=243.81 lat (msec): min=190, max=1883, avg=855.83, stdev=243.85 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 489], 10.00th=[ 567], 20.00th=[ 651], | 30.00th=[ 718], 40.00th=[ 776], 50.00th=[ 827], 60.00th=[ 894], | 70.00th=[ 961], 80.00th=[ 1045], 90.00th=[ 1217], 95.00th=[ 1284], | 99.00th=[ 1536], 99.50th=[ 1620], 99.90th=[ 1871], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 7, max= 103, per=24.91%, avg=50.31, stdev=21.42, samples=204 iops : min= 1, max= 25, avg=12.15, stdev= 5.37, samples=204 lat (msec) : 50=0.04%, 100=0.31%, 250=1.56%, 500=42.46%, 750=21.68% lat (msec) : 1000=21.05%, 2000=12.89% cpu : usr=0.07%, sys=0.53%, ctx=4474, 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=146678: Thu Sep 10 03:33:47 2026 read: IOPS=12, BW=48.4KiB/s (49.6kB/s)(4984KiB/102881msec) slat (usec): min=2769, max=54321, avg=12879.01, stdev=7171.38 clat (msec): min=15, max=1057, avg=404.14, stdev=112.02 lat (msec): min=29, max=1075, avg=417.03, stdev=112.99 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 266], 10.00th=[ 292], 20.00th=[ 317], | 30.00th=[ 342], 40.00th=[ 363], 50.00th=[ 388], 60.00th=[ 418], | 70.00th=[ 447], 80.00th=[ 485], 90.00th=[ 531], 95.00th=[ 584], | 99.00th=[ 818], 99.50th=[ 894], 99.90th=[ 1053], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 143, per=25.03%, avg=48.56, stdev=22.92, samples=202 iops : min= 1, max= 35, avg=11.72, stdev= 5.74, samples=202 write: IOPS=12, BW=51.1KiB/s (52.3kB/s)(5256KiB/102881msec); 0 zone resets slat (usec): min=35, max=8870, avg=197.31, stdev=561.91 clat (msec): min=226, max=1700, avg=854.77, stdev=237.58 lat (msec): min=226, max=1701, avg=854.97, stdev=237.61 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 502], 10.00th=[ 575], 20.00th=[ 659], | 30.00th=[ 718], 40.00th=[ 768], 50.00th=[ 827], 60.00th=[ 894], | 70.00th=[ 961], 80.00th=[ 1045], 90.00th=[ 1183], 95.00th=[ 1301], | 99.00th=[ 1469], 99.50th=[ 1586], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 7, max= 95, per=24.84%, avg=50.18, stdev=19.19, samples=204 iops : min= 1, max= 23, avg=12.12, stdev= 4.86, samples=204 lat (msec) : 20=0.04%, 50=0.04%, 100=0.16%, 250=1.25%, 500=42.46% lat (msec) : 750=22.54%, 1000=20.59%, 2000=12.93% cpu : usr=0.08%, sys=0.59%, ctx=4851, 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=146679: Thu Sep 10 03:33:47 2026 read: IOPS=12, BW=49.4KiB/s (50.6kB/s)(5060KiB/102476msec) slat (usec): min=47, max=56056, avg=12797.72, stdev=7312.23 clat (msec): min=11, max=1209, avg=405.19, stdev=118.63 lat (msec): min=15, max=1225, avg=417.99, stdev=119.78 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 268], 10.00th=[ 284], 20.00th=[ 317], | 30.00th=[ 342], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 443], 80.00th=[ 481], 90.00th=[ 535], 95.00th=[ 592], | 99.00th=[ 818], 99.50th=[ 953], 99.90th=[ 1200], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 7, max= 118, per=25.48%, avg=49.42, stdev=21.47, samples=201 iops : min= 1, max= 29, avg=11.93, stdev= 5.41, samples=201 write: IOPS=12, BW=50.5KiB/s (51.8kB/s)(5180KiB/102476msec); 0 zone resets slat (usec): min=34, max=15921, avg=216.76, stdev=767.87 clat (msec): min=104, max=1901, avg=856.06, stdev=248.98 lat (msec): min=120, max=1901, avg=856.28, stdev=248.92 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 502], 10.00th=[ 567], 20.00th=[ 642], | 30.00th=[ 709], 40.00th=[ 760], 50.00th=[ 827], 60.00th=[ 911], | 70.00th=[ 969], 80.00th=[ 1070], 90.00th=[ 1183], 95.00th=[ 1284], | 99.00th=[ 1552], 99.50th=[ 1603], 99.90th=[ 1871], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 8, max= 119, per=24.77%, avg=50.04, stdev=20.51, samples=203 iops : min= 2, max= 29, avg=12.09, stdev= 5.16, samples=203 lat (msec) : 20=0.08%, 50=0.08%, 100=0.16%, 250=1.45%, 500=42.27% lat (msec) : 750=23.71%, 1000=19.14%, 2000=13.12% cpu : usr=0.09%, sys=0.57%, ctx=4765, 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=195KiB/s (200kB/s), 48.3KiB/s-49.4KiB/s (49.5kB/s-50.6kB/s), io=19.6MiB (20.5MB), run=102476-102934msec WRITE: bw=203KiB/s (208kB/s), 50.5KiB/s-51.1KiB/s (51.8kB/s-52.4kB/s), io=20.4MiB (21.4MB), run=102476-102934msec 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=146697: Thu Sep 10 03:33:58 2026 read: IOPS=1, BW=52.2MiB/s (54.8MB/s)(40.0MiB/766msec) slat (nsec): min=58914k, max=58914k, avg=58913599.00, stdev= 0.00 clat (nsec): min=642702k, max=642702k, avg=642702280.00, stdev= 0.00 lat (nsec): min=701621k, max=701621k, avg=701620574.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] lat (msec) : 750=100.00% cpu : usr=0.13%, sys=1.57%, ctx=30, 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=52.2MiB/s (54.8MB/s), 52.2MiB/s-52.2MiB/s (54.8MB/s-54.8MB/s), io=40.0MiB (41.9MB), run=766-766msec 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