== sanity test 398c: run fio to test AIO ================= 04:30:06 (1789029006) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.634129 s, 66.1 MB/s osc.lustre-OST0000-osc-ffff89da1225c800.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=178965: Thu Sep 10 04:30:56 2026 write: IOPS=68, BW=274KiB/s (281kB/s)(10.0MiB/37314msec); 0 zone resets slat (usec): min=29, max=19810, avg=198.73, stdev=760.31 clat (msec): min=29, max=408, avg=232.31, stdev=57.98 lat (msec): min=30, max=408, avg=232.52, stdev=57.97 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 142], 10.00th=[ 161], 20.00th=[ 180], | 30.00th=[ 199], 40.00th=[ 215], 50.00th=[ 230], 60.00th=[ 247], | 70.00th=[ 262], 80.00th=[ 284], 90.00th=[ 313], 95.00th=[ 334], | 99.00th=[ 372], 99.50th=[ 409], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 127, max= 431, per=24.93%, avg=273.51, stdev=64.70, samples=74 iops : min= 31, max= 107, avg=67.95, stdev=16.21, samples=74 lat (msec) : 50=0.08%, 100=0.70%, 250=61.91%, 500=37.30% cpu : usr=0.12%, sys=0.71%, ctx=1483, 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=178966: Thu Sep 10 04:30:56 2026 write: IOPS=68, BW=274KiB/s (281kB/s)(10.0MiB/37336msec); 0 zone resets slat (usec): min=28, max=16548, avg=247.89, stdev=912.89 clat (msec): min=22, max=445, avg=232.45, stdev=59.26 lat (msec): min=23, max=445, avg=232.70, stdev=59.26 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 142], 10.00th=[ 163], 20.00th=[ 182], | 30.00th=[ 199], 40.00th=[ 213], 50.00th=[ 232], 60.00th=[ 247], | 70.00th=[ 259], 80.00th=[ 279], 90.00th=[ 313], 95.00th=[ 334], | 99.00th=[ 368], 99.50th=[ 388], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 127, max= 439, per=24.94%, avg=273.59, stdev=60.85, samples=74 iops : min= 31, max= 109, avg=67.95, stdev=15.27, samples=74 lat (msec) : 50=0.20%, 100=0.94%, 250=62.11%, 500=36.76% cpu : usr=0.14%, sys=0.66%, ctx=2512, 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=178967: Thu Sep 10 04:30:56 2026 write: IOPS=69, BW=277KiB/s (283kB/s)(10.0MiB/37013msec); 0 zone resets slat (usec): min=28, max=20624, avg=219.49, stdev=929.17 clat (msec): min=45, max=437, avg=230.96, stdev=58.15 lat (msec): min=45, max=437, avg=231.18, stdev=58.21 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 144], 10.00th=[ 159], 20.00th=[ 180], | 30.00th=[ 199], 40.00th=[ 215], 50.00th=[ 232], 60.00th=[ 247], | 70.00th=[ 262], 80.00th=[ 284], 90.00th=[ 309], 95.00th=[ 330], | 99.00th=[ 347], 99.50th=[ 351], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 127, max= 507, per=25.02%, avg=274.44, stdev=70.86, samples=73 iops : min= 31, max= 126, avg=68.14, stdev=17.79, samples=73 lat (msec) : 50=0.62%, 100=0.66%, 250=61.84%, 500=36.88% cpu : usr=0.11%, sys=0.63%, ctx=1490, 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=178968: Thu Sep 10 04:30:56 2026 write: IOPS=68, BW=274KiB/s (281kB/s)(10.0MiB/37334msec); 0 zone resets slat (usec): min=30, max=19073, avg=205.69, stdev=847.61 clat (msec): min=21, max=398, avg=232.42, stdev=58.58 lat (msec): min=21, max=398, avg=232.63, stdev=58.56 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 140], 10.00th=[ 165], 20.00th=[ 182], | 30.00th=[ 201], 40.00th=[ 215], 50.00th=[ 228], 60.00th=[ 245], | 70.00th=[ 262], 80.00th=[ 284], 90.00th=[ 313], 95.00th=[ 338], | 99.00th=[ 363], 99.50th=[ 388], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 127, max= 399, per=24.91%, avg=273.26, stdev=64.55, samples=74 iops : min= 31, max= 99, avg=67.85, stdev=16.17, samples=74 lat (msec) : 50=0.23%, 100=0.47%, 250=62.54%, 500=36.76% cpu : usr=0.12%, sys=0.72%, ctx=2183, 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=1097KiB/s (1123kB/s), 274KiB/s-277KiB/s (281kB/s-283kB/s), io=40.0MiB (41.9MB), run=37013-37336msec 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=178983: Thu Sep 10 04:31:41 2026 read: IOPS=36, BW=147KiB/s (150kB/s)(5048KiB/34427msec) slat (usec): min=37, max=64931, avg=14862.02, stdev=7579.50 clat (msec): min=28, max=391, avg=203.64, stdev=45.28 lat (msec): min=38, max=405, avg=218.52, stdev=47.38 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 138], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 180], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 211], | 70.00th=[ 224], 80.00th=[ 239], 90.00th=[ 259], 95.00th=[ 279], | 99.00th=[ 351], 99.50th=[ 372], 99.90th=[ 384], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 80, max= 224, per=25.33%, avg=146.16, stdev=27.98, samples=68 iops : min= 20, max= 56, avg=36.07, stdev= 7.01, samples=68 write: IOPS=37, BW=151KiB/s (154kB/s)(5192KiB/34427msec); 0 zone resets slat (usec): min=30, max=19222, avg=335.08, stdev=1063.28 clat (msec): min=52, max=354, avg=211.04, stdev=41.40 lat (msec): min=57, max=354, avg=211.38, stdev=41.33 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 148], 10.00th=[ 159], 20.00th=[ 176], | 30.00th=[ 186], 40.00th=[ 199], 50.00th=[ 209], 60.00th=[ 220], | 70.00th=[ 232], 80.00th=[ 245], 90.00th=[ 266], 95.00th=[ 284], | 99.00th=[ 309], 99.50th=[ 326], 99.90th=[ 338], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 64, max= 239, per=25.08%, avg=150.75, stdev=39.30, samples=68 iops : min= 16, max= 59, avg=37.21, stdev= 9.89, samples=68 lat (msec) : 50=0.04%, 100=0.12%, 250=84.80%, 500=15.04% cpu : usr=0.24%, sys=1.74%, ctx=4532, 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=178984: Thu Sep 10 04:31:41 2026 read: IOPS=35, BW=143KiB/s (147kB/s)(4976KiB/34751msec) slat (usec): min=31, max=67104, avg=14794.53, stdev=7732.44 clat (msec): min=83, max=376, avg=204.42, stdev=43.54 lat (msec): min=91, max=387, avg=219.23, stdev=44.97 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 140], 10.00th=[ 153], 20.00th=[ 169], | 30.00th=[ 180], 40.00th=[ 190], 50.00th=[ 203], 60.00th=[ 213], | 70.00th=[ 226], 80.00th=[ 241], 90.00th=[ 259], 95.00th=[ 279], | 99.00th=[ 338], 99.50th=[ 351], 99.90th=[ 372], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 75, max= 232, per=24.58%, avg=141.84, stdev=31.47, samples=69 iops : min= 18, max= 58, avg=34.97, stdev= 7.90, samples=69 write: IOPS=37, BW=151KiB/s (155kB/s)(5264KiB/34751msec); 0 zone resets slat (usec): min=31, max=12308, avg=297.78, stdev=834.71 clat (msec): min=42, max=348, avg=213.35, stdev=39.71 lat (msec): min=43, max=349, avg=213.65, stdev=39.66 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 155], 10.00th=[ 165], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 203], 50.00th=[ 213], 60.00th=[ 224], | 70.00th=[ 234], 80.00th=[ 245], 90.00th=[ 266], 95.00th=[ 284], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 71, max= 232, per=25.09%, avg=150.78, stdev=35.35, samples=69 iops : min= 17, max= 58, avg=37.23, stdev= 8.91, samples=69 lat (msec) : 50=0.04%, 100=0.12%, 250=84.80%, 500=15.04% cpu : usr=0.28%, sys=1.74%, ctx=4369, 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=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=178985: Thu Sep 10 04:31:41 2026 read: IOPS=35, BW=143KiB/s (147kB/s)(4984KiB/34741msec) slat (usec): min=3211, max=77191, avg=15199.10, stdev=7918.34 clat (msec): min=26, max=373, avg=202.48, stdev=42.35 lat (msec): min=39, max=407, avg=217.69, stdev=44.17 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 138], 10.00th=[ 150], 20.00th=[ 167], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 203], 60.00th=[ 213], | 70.00th=[ 222], 80.00th=[ 239], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 313], 99.50th=[ 326], 99.90th=[ 351], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 75, max= 240, per=24.83%, avg=143.26, stdev=34.74, samples=68 iops : min= 18, max= 60, avg=35.35, stdev= 8.77, samples=68 write: IOPS=37, BW=151KiB/s (155kB/s)(5256KiB/34741msec); 0 zone resets slat (usec): min=30, max=18018, avg=330.42, stdev=1108.03 clat (msec): min=105, max=372, avg=213.65, stdev=42.94 lat (msec): min=105, max=372, avg=213.98, stdev=42.93 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 150], 10.00th=[ 161], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 201], 50.00th=[ 211], 60.00th=[ 220], | 70.00th=[ 232], 80.00th=[ 247], 90.00th=[ 275], 95.00th=[ 296], | 99.00th=[ 321], 99.50th=[ 338], 99.90th=[ 355], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 83, max= 238, per=25.08%, avg=150.75, stdev=37.83, samples=68 iops : min= 20, max= 59, avg=37.22, stdev= 9.50, samples=68 lat (msec) : 50=0.08%, 100=0.08%, 250=84.49%, 500=15.35% cpu : usr=0.21%, sys=1.74%, ctx=4282, 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=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=178986: Thu Sep 10 04:31:41 2026 read: IOPS=36, BW=146KiB/s (149kB/s)(5060KiB/34710msec) slat (usec): min=3031, max=51343, avg=15072.66, stdev=7772.98 clat (msec): min=37, max=398, avg=204.92, stdev=42.33 lat (msec): min=54, max=414, avg=220.00, stdev=43.83 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 142], 10.00th=[ 155], 20.00th=[ 169], | 30.00th=[ 182], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 211], | 70.00th=[ 224], 80.00th=[ 239], 90.00th=[ 257], 95.00th=[ 279], | 99.00th=[ 334], 99.50th=[ 351], 99.90th=[ 368], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 68, max= 216, per=25.16%, avg=145.19, stdev=29.46, samples=68 iops : min= 17, max= 54, avg=35.82, stdev= 7.41, samples=68 write: IOPS=37, BW=149KiB/s (153kB/s)(5180KiB/34710msec); 0 zone resets slat (usec): min=33, max=15630, avg=296.73, stdev=824.69 clat (msec): min=113, max=377, avg=211.07, stdev=39.82 lat (msec): min=113, max=377, avg=211.37, stdev=39.79 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 150], 10.00th=[ 161], 20.00th=[ 178], | 30.00th=[ 188], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 222], | 70.00th=[ 232], 80.00th=[ 243], 90.00th=[ 264], 95.00th=[ 279], | 99.00th=[ 309], 99.50th=[ 321], 99.90th=[ 338], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 84, max= 243, per=24.69%, avg=148.41, stdev=36.29, samples=68 iops : min= 21, max= 60, avg=36.63, stdev= 9.08, samples=68 lat (msec) : 50=0.04%, 250=85.04%, 500=14.92% cpu : usr=0.31%, sys=1.78%, ctx=4229, 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=577KiB/s (591kB/s), 143KiB/s-147KiB/s (147kB/s-150kB/s), io=19.6MiB (20.5MB), run=34427-34751msec WRITE: bw=601KiB/s (616kB/s), 149KiB/s-151KiB/s (153kB/s-155kB/s), io=20.4MiB (21.4MB), run=34427-34751msec 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=178995: Thu Sep 10 04:31:50 2026 read: IOPS=2, BW=81.1MiB/s (85.1MB/s)(40.0MiB/493msec) slat (nsec): min=24529k, max=24529k, avg=24528992.00, stdev= 0.00 clat (nsec): min=445301k, max=445301k, avg=445300857.00, stdev= 0.00 lat (nsec): min=469835k, max=469835k, avg=469834689.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 447], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.64%, ctx=7, 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=81.1MiB/s (85.1MB/s), 81.1MiB/s-81.1MiB/s (85.1MB/s-85.1MB/s), io=40.0MiB (41.9MB), run=493-493msec 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