== sanity test 398c: run fio to test AIO ================= 09:26:07 (1789133167) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.675388 s, 62.1 MB/s osc.lustre-OST0000-osc-ffff946145369000.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=180063: Fri Sep 11 09:27:03 2026 write: IOPS=57, BW=232KiB/s (238kB/s)(10.0MiB/44150msec); 0 zone resets slat (usec): min=23, max=19524, avg=200.11, stdev=1023.53 clat (msec): min=20, max=561, avg=274.87, stdev=80.21 lat (msec): min=20, max=561, avg=275.08, stdev=80.20 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 159], 10.00th=[ 174], 20.00th=[ 211], | 30.00th=[ 234], 40.00th=[ 251], 50.00th=[ 266], 60.00th=[ 284], | 70.00th=[ 305], 80.00th=[ 342], 90.00th=[ 380], 95.00th=[ 418], | 99.00th=[ 510], 99.50th=[ 542], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 126, max= 377, per=24.79%, avg=229.76, stdev=62.40, samples=87 iops : min= 31, max= 94, avg=57.02, stdev=15.64, samples=87 lat (msec) : 50=0.12%, 100=0.78%, 250=38.16%, 500=59.45%, 750=1.48% cpu : usr=0.12%, sys=0.65%, ctx=2139, 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=180064: Fri Sep 11 09:27:03 2026 write: IOPS=58, BW=233KiB/s (238kB/s)(10.0MiB/44030msec); 0 zone resets slat (usec): min=22, max=26836, avg=171.15, stdev=846.57 clat (msec): min=65, max=574, avg=274.80, stdev=81.95 lat (msec): min=65, max=574, avg=274.97, stdev=81.96 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 157], 10.00th=[ 176], 20.00th=[ 209], | 30.00th=[ 228], 40.00th=[ 247], 50.00th=[ 268], 60.00th=[ 284], | 70.00th=[ 309], 80.00th=[ 342], 90.00th=[ 376], 95.00th=[ 422], | 99.00th=[ 550], 99.50th=[ 567], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 126, max= 440, per=24.92%, avg=231.01, stdev=66.58, samples=87 iops : min= 31, max= 110, avg=57.33, stdev=16.68, samples=87 lat (msec) : 100=0.55%, 250=40.16%, 500=57.50%, 750=1.80% cpu : usr=0.11%, sys=0.62%, ctx=2350, 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=180065: Fri Sep 11 09:27:03 2026 write: IOPS=58, BW=233KiB/s (238kB/s)(10.0MiB/43990msec); 0 zone resets slat (usec): min=23, max=18336, avg=195.29, stdev=932.19 clat (msec): min=27, max=560, avg=274.00, stdev=82.04 lat (msec): min=27, max=560, avg=274.19, stdev=82.09 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 153], 10.00th=[ 171], 20.00th=[ 209], | 30.00th=[ 232], 40.00th=[ 247], 50.00th=[ 268], 60.00th=[ 288], | 70.00th=[ 309], 80.00th=[ 334], 90.00th=[ 384], 95.00th=[ 430], | 99.00th=[ 531], 99.50th=[ 535], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 126, max= 503, per=25.00%, avg=231.75, stdev=69.00, samples=87 iops : min= 31, max= 125, avg=57.52, stdev=17.27, samples=87 lat (msec) : 50=0.08%, 100=0.70%, 250=41.88%, 500=56.05%, 750=1.29% cpu : usr=0.13%, sys=0.60%, ctx=1902, 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=180066: Fri Sep 11 09:27:03 2026 write: IOPS=58, BW=232KiB/s (238kB/s)(10.0MiB/44052msec); 0 zone resets slat (usec): min=28, max=27052, avg=203.67, stdev=975.28 clat (msec): min=33, max=563, avg=274.33, stdev=80.52 lat (msec): min=33, max=563, avg=274.53, stdev=80.52 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 157], 10.00th=[ 178], 20.00th=[ 213], | 30.00th=[ 234], 40.00th=[ 251], 50.00th=[ 266], 60.00th=[ 284], | 70.00th=[ 305], 80.00th=[ 338], 90.00th=[ 372], 95.00th=[ 430], | 99.00th=[ 527], 99.50th=[ 542], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 119, max= 393, per=24.96%, avg=231.43, stdev=64.67, samples=87 iops : min= 29, max= 98, avg=57.44, stdev=16.24, samples=87 lat (msec) : 50=0.16%, 100=0.78%, 250=38.71%, 500=58.48%, 750=1.88% cpu : usr=0.11%, sys=0.67%, ctx=2169, 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=928KiB/s (950kB/s), 232KiB/s-233KiB/s (238kB/s-238kB/s), io=40.0MiB (41.9MB), run=43990-44150msec 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=180083: Fri Sep 11 09:27:52 2026 read: IOPS=32, BW=129KiB/s (132kB/s)(5048KiB/39225msec) slat (usec): min=39, max=64274, avg=16875.10, stdev=9481.47 clat (msec): min=86, max=474, avg=233.18, stdev=59.95 lat (msec): min=94, max=484, avg=250.07, stdev=62.21 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 146], 10.00th=[ 163], 20.00th=[ 186], | 30.00th=[ 203], 40.00th=[ 213], 50.00th=[ 228], 60.00th=[ 243], | 70.00th=[ 257], 80.00th=[ 279], 90.00th=[ 313], 95.00th=[ 338], | 99.00th=[ 405], 99.50th=[ 418], 99.90th=[ 456], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 64, max= 215, per=25.11%, avg=128.32, stdev=30.76, samples=77 iops : min= 16, max= 53, avg=31.60, stdev= 7.68, samples=77 write: IOPS=33, BW=132KiB/s (136kB/s)(5192KiB/39225msec); 0 zone resets slat (usec): min=31, max=18222, avg=236.63, stdev=943.02 clat (msec): min=60, max=429, avg=237.75, stdev=55.87 lat (msec): min=60, max=430, avg=237.99, stdev=55.86 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 146], 10.00th=[ 171], 20.00th=[ 194], | 30.00th=[ 209], 40.00th=[ 224], 50.00th=[ 236], 60.00th=[ 249], | 70.00th=[ 264], 80.00th=[ 279], 90.00th=[ 305], 95.00th=[ 338], | 99.00th=[ 397], 99.50th=[ 409], 99.90th=[ 426], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 39, max= 223, per=24.85%, avg=132.22, stdev=36.15, samples=77 iops : min= 9, max= 55, avg=32.58, stdev= 9.02, samples=77 lat (msec) : 100=0.47%, 250=63.05%, 500=36.48% cpu : usr=0.30%, sys=1.47%, ctx=3599, 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=180084: Fri Sep 11 09:27:52 2026 read: IOPS=31, BW=128KiB/s (131kB/s)(4976KiB/39000msec) slat (usec): min=36, max=190402, avg=16890.88, stdev=11489.45 clat (msec): min=19, max=542, avg=229.72, stdev=62.25 lat (msec): min=37, max=573, avg=246.62, stdev=64.72 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 142], 10.00th=[ 159], 20.00th=[ 182], | 30.00th=[ 199], 40.00th=[ 213], 50.00th=[ 224], 60.00th=[ 239], | 70.00th=[ 255], 80.00th=[ 275], 90.00th=[ 309], 95.00th=[ 334], | 99.00th=[ 430], 99.50th=[ 472], 99.90th=[ 502], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 55, max= 231, per=24.84%, avg=126.91, stdev=37.77, samples=77 iops : min= 13, max= 57, avg=31.23, stdev= 9.38, samples=77 write: IOPS=33, BW=135KiB/s (138kB/s)(5264KiB/39000msec); 0 zone resets slat (usec): min=25, max=23987, avg=327.60, stdev=1375.93 clat (msec): min=98, max=620, avg=240.10, stdev=59.71 lat (msec): min=99, max=620, avg=240.43, stdev=59.74 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 155], 10.00th=[ 176], 20.00th=[ 194], | 30.00th=[ 209], 40.00th=[ 222], 50.00th=[ 232], 60.00th=[ 245], | 70.00th=[ 262], 80.00th=[ 288], 90.00th=[ 317], 95.00th=[ 342], | 99.00th=[ 426], 99.50th=[ 472], 99.90th=[ 575], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 54, max= 245, per=25.30%, avg=134.57, stdev=37.38, samples=77 iops : min= 13, max= 61, avg=33.17, stdev= 9.40, samples=77 lat (msec) : 20=0.04%, 50=0.08%, 100=0.43%, 250=64.38%, 500=34.88% lat (msec) : 750=0.20% cpu : usr=0.31%, sys=1.66%, ctx=4309, 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=180085: Fri Sep 11 09:27:52 2026 read: IOPS=31, BW=127KiB/s (130kB/s)(4984KiB/39226msec) slat (usec): min=2687, max=65591, avg=16797.23, stdev=9709.30 clat (msec): min=88, max=439, avg=229.61, stdev=57.23 lat (msec): min=94, max=486, avg=246.41, stdev=59.73 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 144], 10.00th=[ 163], 20.00th=[ 184], | 30.00th=[ 201], 40.00th=[ 213], 50.00th=[ 224], 60.00th=[ 239], | 70.00th=[ 253], 80.00th=[ 271], 90.00th=[ 305], 95.00th=[ 334], | 99.00th=[ 384], 99.50th=[ 397], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 46, max= 239, per=24.88%, avg=127.12, stdev=36.38, samples=77 iops : min= 11, max= 59, avg=31.31, stdev= 9.10, samples=77 write: IOPS=33, BW=134KiB/s (137kB/s)(5256KiB/39226msec); 0 zone resets slat (usec): min=34, max=15436, avg=210.66, stdev=721.24 clat (msec): min=16, max=509, avg=240.64, stdev=56.79 lat (msec): min=16, max=509, avg=240.85, stdev=56.82 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 159], 10.00th=[ 176], 20.00th=[ 197], | 30.00th=[ 211], 40.00th=[ 222], 50.00th=[ 234], 60.00th=[ 249], | 70.00th=[ 264], 80.00th=[ 284], 90.00th=[ 317], 95.00th=[ 342], | 99.00th=[ 384], 99.50th=[ 405], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 61, max= 215, per=25.10%, avg=133.56, stdev=33.85, samples=77 iops : min= 15, max= 53, avg=32.92, stdev= 8.46, samples=77 lat (msec) : 20=0.04%, 100=0.39%, 250=64.77%, 500=34.65%, 750=0.16% cpu : usr=0.20%, sys=1.49%, ctx=4200, 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=180086: Fri Sep 11 09:27:52 2026 read: IOPS=32, BW=129KiB/s (132kB/s)(5060KiB/39222msec) slat (usec): min=3224, max=69431, avg=16853.02, stdev=9423.03 clat (msec): min=39, max=490, avg=231.48, stdev=58.77 lat (msec): min=60, max=508, avg=248.35, stdev=61.21 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 146], 10.00th=[ 163], 20.00th=[ 186], | 30.00th=[ 203], 40.00th=[ 215], 50.00th=[ 228], 60.00th=[ 239], | 70.00th=[ 255], 80.00th=[ 279], 90.00th=[ 305], 95.00th=[ 338], | 99.00th=[ 401], 99.50th=[ 414], 99.90th=[ 481], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 31, max= 239, per=25.22%, avg=128.88, stdev=35.18, samples=77 iops : min= 7, max= 59, avg=31.74, stdev= 8.80, samples=77 write: IOPS=33, BW=132KiB/s (135kB/s)(5180KiB/39222msec); 0 zone resets slat (usec): min=24, max=17337, avg=265.88, stdev=1063.98 clat (msec): min=98, max=594, avg=238.03, stdev=57.01 lat (msec): min=98, max=594, avg=238.30, stdev=57.00 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 157], 10.00th=[ 178], 20.00th=[ 194], | 30.00th=[ 207], 40.00th=[ 220], 50.00th=[ 232], 60.00th=[ 247], | 70.00th=[ 259], 80.00th=[ 279], 90.00th=[ 313], 95.00th=[ 342], | 99.00th=[ 397], 99.50th=[ 426], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 54, max= 223, per=24.74%, avg=131.61, stdev=35.27, samples=77 iops : min= 13, max= 55, avg=32.42, stdev= 8.79, samples=77 lat (msec) : 50=0.04%, 100=0.59%, 250=64.84%, 500=34.41%, 750=0.12% cpu : usr=0.24%, sys=1.43%, ctx=4010, 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=512KiB/s (524kB/s), 127KiB/s-129KiB/s (130kB/s-132kB/s), io=19.6MiB (20.5MB), run=39000-39226msec WRITE: bw=533KiB/s (545kB/s), 132KiB/s-135KiB/s (135kB/s-138kB/s), io=20.4MiB (21.4MB), run=39000-39226msec 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=180097: Fri Sep 11 09:28:05 2026 read: IOPS=1, BW=71.3MiB/s (74.8MB/s)(40.0MiB/561msec) slat (nsec): min=31465k, max=31465k, avg=31465413.00, stdev= 0.00 clat (nsec): min=509690k, max=509690k, avg=509689549.00, stdev= 0.00 lat (nsec): min=541160k, max=541160k, avg=541160262.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 510], 50.00th=[ 510], 60.00th=[ 510], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 510], 95.00th=[ 510], | 99.00th=[ 510], 99.50th=[ 510], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.14%, ctx=5, majf=0, minf=7 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=71.3MiB/s (74.8MB/s), 71.3MiB/s-71.3MiB/s (74.8MB/s-74.8MB/s), io=40.0MiB (41.9MB), run=561-561msec 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