== sanity test 398c: run fio to test AIO ================= 19:07:06 (1786316826) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.501297 s, 83.7 MB/s osc.lustre-OST0000-osc-ffff9ac1183da000.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=179501: Sun Aug 9 19:07:44 2026 write: IOPS=89, BW=359KiB/s (367kB/s)(10.0MiB/28563msec); 0 zone resets slat (usec): min=35, max=14106, avg=294.81, stdev=962.72 clat (msec): min=27, max=376, avg=177.36, stdev=44.73 lat (msec): min=28, max=383, avg=177.65, stdev=44.76 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 118], 10.00th=[ 128], 20.00th=[ 138], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 213], 90.00th=[ 239], 95.00th=[ 259], | 99.00th=[ 313], 99.50th=[ 334], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 376] bw ( KiB/s): min= 240, max= 578, per=25.13%, avg=359.34, stdev=85.36, samples=56 iops : min= 60, max= 144, avg=89.45, stdev=21.29, samples=56 lat (msec) : 50=0.04%, 100=1.05%, 250=92.15%, 500=6.76% cpu : usr=0.14%, sys=1.02%, ctx=1878, 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=179502: Sun Aug 9 19:07:44 2026 write: IOPS=89, BW=359KiB/s (368kB/s)(10.0MiB/28490msec); 0 zone resets slat (usec): min=39, max=13890, avg=321.74, stdev=913.70 clat (msec): min=30, max=490, avg=177.49, stdev=45.33 lat (msec): min=31, max=490, avg=177.81, stdev=45.33 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 122], 10.00th=[ 128], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 169], 60.00th=[ 184], | 70.00th=[ 199], 80.00th=[ 218], 90.00th=[ 239], 95.00th=[ 259], | 99.00th=[ 305], 99.50th=[ 309], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 200, max= 570, per=25.22%, avg=360.59, stdev=74.90, samples=56 iops : min= 50, max= 142, avg=89.71, stdev=18.68, samples=56 lat (msec) : 50=0.08%, 100=0.74%, 250=92.42%, 500=6.76% cpu : usr=0.15%, sys=1.29%, ctx=2678, 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=179503: Sun Aug 9 19:07:44 2026 write: IOPS=89, BW=360KiB/s (368kB/s)(10.0MiB/28475msec); 0 zone resets slat (usec): min=39, max=18050, avg=336.69, stdev=943.05 clat (msec): min=11, max=477, avg=176.74, stdev=46.83 lat (msec): min=11, max=477, avg=177.08, stdev=46.82 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 118], 10.00th=[ 126], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 234], 95.00th=[ 264], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 152, max= 586, per=25.23%, avg=360.80, stdev=76.64, samples=56 iops : min= 38, max= 146, avg=89.79, stdev=19.13, samples=56 lat (msec) : 20=0.08%, 50=0.16%, 100=1.29%, 250=92.19%, 500=6.29% cpu : usr=0.24%, sys=1.29%, ctx=2835, 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=179504: Sun Aug 9 19:07:44 2026 write: IOPS=89, BW=358KiB/s (366kB/s)(10.0MiB/28632msec); 0 zone resets slat (usec): min=35, max=20932, avg=308.85, stdev=907.79 clat (msec): min=50, max=335, avg=177.39, stdev=44.03 lat (msec): min=71, max=336, avg=177.70, stdev=43.99 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 120], 10.00th=[ 127], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 239], 95.00th=[ 259], | 99.00th=[ 284], 99.50th=[ 326], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 121, max= 546, per=25.05%, avg=358.18, stdev=78.10, samples=56 iops : min= 30, max= 136, avg=89.12, stdev=19.52, samples=56 lat (msec) : 100=1.25%, 250=92.38%, 500=6.37% cpu : usr=0.15%, sys=1.07%, ctx=2240, 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=1431KiB/s (1465kB/s), 358KiB/s-360KiB/s (366kB/s-368kB/s), io=40.0MiB (41.9MB), run=28475-28632msec 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=179518: Sun Aug 9 19:08:26 2026 read: IOPS=35, BW=143KiB/s (146kB/s)(5048KiB/35384msec) slat (usec): min=76, max=84265, avg=16253.84, stdev=10078.63 clat (msec): min=26, max=484, avg=205.81, stdev=57.23 lat (msec): min=37, max=510, avg=222.07, stdev=59.87 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 126], 10.00th=[ 142], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 201], 60.00th=[ 213], | 70.00th=[ 226], 80.00th=[ 245], 90.00th=[ 288], 95.00th=[ 313], | 99.00th=[ 380], 99.50th=[ 397], 99.90th=[ 422], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 55, max= 254, per=24.97%, avg=141.59, stdev=40.91, samples=69 iops : min= 13, max= 63, avg=34.93, stdev=10.25, samples=69 write: IOPS=36, BW=147KiB/s (150kB/s)(5192KiB/35384msec); 0 zone resets slat (usec): min=40, max=16996, avg=270.72, stdev=779.94 clat (msec): min=49, max=440, avg=218.73, stdev=58.93 lat (msec): min=49, max=440, avg=219.01, stdev=58.93 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 134], 10.00th=[ 150], 20.00th=[ 171], | 30.00th=[ 186], 40.00th=[ 201], 50.00th=[ 211], 60.00th=[ 226], | 70.00th=[ 243], 80.00th=[ 264], 90.00th=[ 296], 95.00th=[ 330], | 99.00th=[ 393], 99.50th=[ 405], 99.90th=[ 435], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 78, max= 239, per=24.74%, avg=145.94, stdev=39.82, samples=69 iops : min= 19, max= 59, avg=35.99, stdev= 9.96, samples=69 lat (msec) : 50=0.16%, 100=0.66%, 250=77.85%, 500=21.33% cpu : usr=0.18%, sys=1.71%, ctx=4092, 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=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=179519: Sun Aug 9 19:08:26 2026 read: IOPS=35, BW=141KiB/s (144kB/s)(4976KiB/35381msec) slat (usec): min=2928, max=79487, avg=16229.86, stdev=9771.38 clat (msec): min=35, max=453, avg=206.12, stdev=56.23 lat (msec): min=43, max=483, avg=222.36, stdev=58.53 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 124], 10.00th=[ 140], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 201], 60.00th=[ 215], | 70.00th=[ 230], 80.00th=[ 251], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 359], 99.50th=[ 388], 99.90th=[ 451], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 51, max= 271, per=24.65%, avg=139.75, stdev=39.70, samples=69 iops : min= 12, max= 67, avg=34.45, stdev= 9.93, samples=69 write: IOPS=37, BW=149KiB/s (152kB/s)(5264KiB/35381msec); 0 zone resets slat (usec): min=51, max=16219, avg=302.99, stdev=913.70 clat (msec): min=78, max=460, avg=217.66, stdev=60.50 lat (msec): min=78, max=460, avg=217.96, stdev=60.46 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 138], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 259], 90.00th=[ 292], 95.00th=[ 330], | 99.00th=[ 414], 99.50th=[ 430], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 71, max= 247, per=25.02%, avg=147.64, stdev=41.94, samples=69 iops : min= 17, max= 61, avg=36.43, stdev=10.49, samples=69 lat (msec) : 50=0.08%, 100=0.86%, 250=77.03%, 500=22.03% cpu : usr=0.20%, sys=1.66%, ctx=4161, 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=179520: Sun Aug 9 19:08:26 2026 read: IOPS=35, BW=142KiB/s (145kB/s)(4984KiB/35209msec) slat (usec): min=54, max=91413, avg=16000.44, stdev=9517.14 clat (msec): min=73, max=435, avg=210.56, stdev=59.36 lat (msec): min=80, max=463, avg=226.57, stdev=62.22 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 127], 10.00th=[ 140], 20.00th=[ 163], | 30.00th=[ 178], 40.00th=[ 192], 50.00th=[ 207], 60.00th=[ 220], | 70.00th=[ 234], 80.00th=[ 251], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 397], 99.50th=[ 405], 99.90th=[ 430], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 71, max= 215, per=24.97%, avg=141.57, stdev=34.20, samples=69 iops : min= 17, max= 53, avg=34.90, stdev= 8.56, samples=69 write: IOPS=37, BW=149KiB/s (153kB/s)(5256KiB/35209msec); 0 zone resets slat (usec): min=39, max=14486, avg=284.86, stdev=810.95 clat (msec): min=43, max=424, avg=213.14, stdev=58.63 lat (msec): min=43, max=424, avg=213.43, stdev=58.65 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 132], 10.00th=[ 144], 20.00th=[ 165], | 30.00th=[ 180], 40.00th=[ 194], 50.00th=[ 209], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 253], 90.00th=[ 284], 95.00th=[ 330], | 99.00th=[ 384], 99.50th=[ 401], 99.90th=[ 418], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 55, max= 294, per=25.17%, avg=148.52, stdev=47.73, samples=69 iops : min= 13, max= 73, avg=36.64, stdev=11.98, samples=69 lat (msec) : 50=0.04%, 100=1.45%, 250=77.85%, 500=20.66% cpu : usr=0.20%, sys=1.61%, ctx=3804, 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=179521: Sun Aug 9 19:08:26 2026 read: IOPS=35, BW=143KiB/s (147kB/s)(5060KiB/35293msec) slat (usec): min=2465, max=69828, avg=16217.76, stdev=9489.50 clat (msec): min=72, max=476, avg=207.23, stdev=56.90 lat (msec): min=77, max=491, avg=223.45, stdev=59.27 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 129], 10.00th=[ 142], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 203], 60.00th=[ 215], | 70.00th=[ 230], 80.00th=[ 249], 90.00th=[ 275], 95.00th=[ 309], | 99.00th=[ 397], 99.50th=[ 418], 99.90th=[ 472], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 64, max= 247, per=25.20%, avg=142.90, stdev=37.93, samples=69 iops : min= 16, max= 61, avg=35.23, stdev= 9.45, samples=69 write: IOPS=36, BW=147KiB/s (150kB/s)(5180KiB/35293msec); 0 zone resets slat (usec): min=38, max=16156, avg=304.13, stdev=1086.96 clat (msec): min=37, max=476, avg=215.09, stdev=56.77 lat (msec): min=38, max=476, avg=215.40, stdev=56.76 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 136], 10.00th=[ 148], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 259], 90.00th=[ 288], 95.00th=[ 317], | 99.00th=[ 388], 99.50th=[ 405], 99.90th=[ 460], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 47, max= 262, per=24.75%, avg=146.00, stdev=43.10, samples=69 iops : min= 11, max= 65, avg=36.03, stdev=10.83, samples=69 lat (msec) : 50=0.04%, 100=1.05%, 250=77.27%, 500=21.64% cpu : usr=0.21%, sys=1.68%, ctx=3865, 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=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=567KiB/s (581kB/s), 141KiB/s-143KiB/s (144kB/s-147kB/s), io=19.6MiB (20.5MB), run=35209-35384msec WRITE: bw=590KiB/s (605kB/s), 147KiB/s-149KiB/s (150kB/s-153kB/s), io=20.4MiB (21.4MB), run=35209-35384msec 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=179530: Sun Aug 9 19:08:35 2026 read: IOPS=2, BW=83.9MiB/s (87.9MB/s)(40.0MiB/477msec) slat (nsec): min=23394k, max=23394k, avg=23394110.00, stdev= 0.00 clat (nsec): min=413109k, max=413109k, avg=413108700.00, stdev= 0.00 lat (nsec): min=436508k, max=436508k, avg=436507669.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 414], 10.00th=[ 414], 20.00th=[ 414], | 30.00th=[ 414], 40.00th=[ 414], 50.00th=[ 414], 60.00th=[ 414], | 70.00th=[ 414], 80.00th=[ 414], 90.00th=[ 414], 95.00th=[ 414], | 99.00th=[ 414], 99.50th=[ 414], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.73%, ctx=7, majf=0, minf=8 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=83.9MiB/s (87.9MB/s), 83.9MiB/s-83.9MiB/s (87.9MB/s-87.9MB/s), io=40.0MiB (41.9MB), run=477-477msec 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