== sanity test 398c: run fio to test AIO ================= 09:00:20 (1787749220) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.677772 s, 61.9 MB/s osc.lustre-OST0000-osc-ffff8d0ed2db4000.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=179680: Wed Aug 26 09:01:08 2026 write: IOPS=75, BW=302KiB/s (309kB/s)(10.0MiB/33893msec); 0 zone resets slat (usec): min=29, max=24229, avg=243.21, stdev=958.83 clat (msec): min=60, max=371, avg=211.33, stdev=52.51 lat (msec): min=60, max=372, avg=211.57, stdev=52.49 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 130], 10.00th=[ 150], 20.00th=[ 165], | 30.00th=[ 180], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 222], | 70.00th=[ 241], 80.00th=[ 259], 90.00th=[ 279], 95.00th=[ 300], | 99.00th=[ 347], 99.50th=[ 359], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 165, max= 494, per=25.14%, avg=301.12, stdev=67.69, samples=67 iops : min= 41, max= 123, avg=74.84, stdev=16.89, samples=67 lat (msec) : 100=1.25%, 250=74.73%, 500=24.02% cpu : usr=0.14%, sys=0.91%, ctx=2856, 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=179681: Wed Aug 26 09:01:08 2026 write: IOPS=74, BW=300KiB/s (307kB/s)(10.0MiB/34164msec); 0 zone resets slat (usec): min=28, max=12098, avg=158.29, stdev=603.60 clat (msec): min=37, max=367, avg=212.47, stdev=50.76 lat (msec): min=38, max=367, avg=212.64, stdev=50.75 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 138], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 255], 90.00th=[ 279], 95.00th=[ 305], | 99.00th=[ 330], 99.50th=[ 351], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 139, max= 509, per=24.94%, avg=298.73, stdev=62.85, samples=67 iops : min= 34, max= 127, avg=74.22, stdev=15.72, samples=67 lat (msec) : 50=0.20%, 250=74.96%, 500=24.84% cpu : usr=0.12%, sys=0.59%, ctx=1284, 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=179682: Wed Aug 26 09:01:08 2026 write: IOPS=74, BW=300KiB/s (307kB/s)(10.0MiB/34149msec); 0 zone resets slat (usec): min=29, max=12210, avg=176.52, stdev=645.45 clat (msec): min=18, max=353, avg=212.47, stdev=49.30 lat (msec): min=18, max=353, avg=212.65, stdev=49.30 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 140], 10.00th=[ 148], 20.00th=[ 169], | 30.00th=[ 182], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 226], | 70.00th=[ 241], 80.00th=[ 255], 90.00th=[ 279], 95.00th=[ 300], | 99.00th=[ 330], 99.50th=[ 338], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 183, max= 501, per=24.89%, avg=298.19, stdev=67.73, samples=67 iops : min= 45, max= 125, avg=74.09, stdev=16.95, samples=67 lat (msec) : 20=0.04%, 100=0.39%, 250=75.51%, 500=24.06% cpu : usr=0.11%, sys=0.69%, ctx=1926, 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=179683: Wed Aug 26 09:01:08 2026 write: IOPS=75, BW=300KiB/s (307kB/s)(10.0MiB/34111msec); 0 zone resets slat (usec): min=29, max=29888, avg=213.70, stdev=948.83 clat (msec): min=16, max=406, avg=212.25, stdev=51.50 lat (msec): min=16, max=406, avg=212.46, stdev=51.48 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 136], 10.00th=[ 153], 20.00th=[ 165], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 209], 60.00th=[ 222], | 70.00th=[ 243], 80.00th=[ 257], 90.00th=[ 279], 95.00th=[ 300], | 99.00th=[ 338], 99.50th=[ 359], 99.90th=[ 372], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 156, max= 470, per=25.02%, avg=299.69, stdev=65.36, samples=67 iops : min= 39, max= 117, avg=74.48, stdev=16.32, samples=67 lat (msec) : 20=0.08%, 50=0.08%, 100=0.47%, 250=73.91%, 500=25.47% cpu : usr=0.13%, sys=0.90%, ctx=2798, 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=1199KiB/s (1228kB/s), 300KiB/s-302KiB/s (307kB/s-309kB/s), io=40.0MiB (41.9MB), run=33893-34164msec 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=179709: Wed Aug 26 09:01:54 2026 read: IOPS=33, BW=134KiB/s (137kB/s)(5048KiB/37624msec) slat (msec): min=3, max=136, avg=16.27, stdev= 9.98 clat (msec): min=32, max=442, avg=221.11, stdev=58.07 lat (msec): min=50, max=465, avg=237.39, stdev=60.27 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 138], 10.00th=[ 157], 20.00th=[ 176], | 30.00th=[ 190], 40.00th=[ 205], 50.00th=[ 215], 60.00th=[ 230], | 70.00th=[ 245], 80.00th=[ 264], 90.00th=[ 296], 95.00th=[ 334], | 99.00th=[ 388], 99.50th=[ 397], 99.90th=[ 430], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 39, max= 208, per=25.01%, avg=133.32, stdev=35.99, samples=74 iops : min= 9, max= 52, avg=32.80, stdev= 8.99, samples=74 write: IOPS=34, BW=138KiB/s (141kB/s)(5192KiB/37624msec); 0 zone resets slat (usec): min=32, max=21753, avg=250.97, stdev=1257.27 clat (msec): min=79, max=506, avg=229.51, stdev=59.90 lat (msec): min=79, max=506, avg=229.77, stdev=59.86 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 144], 10.00th=[ 165], 20.00th=[ 184], | 30.00th=[ 199], 40.00th=[ 209], 50.00th=[ 224], 60.00th=[ 236], | 70.00th=[ 251], 80.00th=[ 275], 90.00th=[ 309], 95.00th=[ 342], | 99.00th=[ 405], 99.50th=[ 430], 99.90th=[ 493], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 64, max= 287, per=24.74%, avg=137.32, stdev=38.65, samples=74 iops : min= 16, max= 71, avg=33.81, stdev= 9.67, samples=74 lat (msec) : 50=0.04%, 100=1.02%, 250=70.59%, 500=28.32%, 750=0.04% cpu : usr=0.29%, sys=1.69%, ctx=4293, 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=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=179710: Wed Aug 26 09:01:54 2026 read: IOPS=33, BW=132KiB/s (135kB/s)(4976KiB/37622msec) slat (usec): min=2673, max=73103, avg=16140.41, stdev=9414.57 clat (msec): min=49, max=484, avg=219.87, stdev=55.95 lat (msec): min=64, max=493, avg=236.01, stdev=57.96 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 133], 10.00th=[ 153], 20.00th=[ 176], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 230], | 70.00th=[ 247], 80.00th=[ 262], 90.00th=[ 292], 95.00th=[ 317], | 99.00th=[ 372], 99.50th=[ 388], 99.90th=[ 456], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 63, max= 239, per=24.57%, avg=130.96, stdev=35.19, samples=74 iops : min= 15, max= 59, avg=32.22, stdev= 8.81, samples=74 write: IOPS=34, BW=140KiB/s (143kB/s)(5264KiB/37622msec); 0 zone resets slat (usec): min=31, max=11035, avg=245.96, stdev=870.85 clat (msec): min=85, max=509, avg=231.39, stdev=58.44 lat (msec): min=85, max=509, avg=231.64, stdev=58.44 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 142], 10.00th=[ 165], 20.00th=[ 188], | 30.00th=[ 203], 40.00th=[ 218], 50.00th=[ 228], 60.00th=[ 241], | 70.00th=[ 253], 80.00th=[ 275], 90.00th=[ 305], 95.00th=[ 338], | 99.00th=[ 418], 99.50th=[ 439], 99.90th=[ 460], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 63, max= 231, per=25.13%, avg=139.45, stdev=35.95, samples=74 iops : min= 15, max= 57, avg=34.31, stdev= 8.99, samples=74 lat (msec) : 50=0.04%, 100=1.25%, 250=69.53%, 500=29.14%, 750=0.04% cpu : usr=0.31%, sys=1.75%, ctx=4512, 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=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=179711: Wed Aug 26 09:01:54 2026 read: IOPS=33, BW=132KiB/s (136kB/s)(4984KiB/37634msec) slat (usec): min=2445, max=88668, avg=16468.15, stdev=10140.12 clat (msec): min=10, max=540, avg=220.23, stdev=60.55 lat (msec): min=21, max=567, avg=236.70, stdev=63.15 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 133], 10.00th=[ 150], 20.00th=[ 174], | 30.00th=[ 190], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 230], | 70.00th=[ 245], 80.00th=[ 262], 90.00th=[ 296], 95.00th=[ 326], | 99.00th=[ 393], 99.50th=[ 426], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 71, max= 254, per=24.63%, avg=131.30, stdev=40.46, samples=74 iops : min= 17, max= 63, avg=32.32, stdev=10.13, samples=74 write: IOPS=34, BW=140KiB/s (143kB/s)(5256KiB/37634msec); 0 zone resets slat (usec): min=30, max=38474, avg=314.32, stdev=1648.49 clat (msec): min=47, max=530, avg=230.65, stdev=58.44 lat (msec): min=48, max=530, avg=230.97, stdev=58.47 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 146], 10.00th=[ 165], 20.00th=[ 184], | 30.00th=[ 201], 40.00th=[ 213], 50.00th=[ 226], 60.00th=[ 241], | 70.00th=[ 255], 80.00th=[ 275], 90.00th=[ 309], 95.00th=[ 338], | 99.00th=[ 388], 99.50th=[ 435], 99.90th=[ 477], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 55, max= 231, per=24.86%, avg=137.99, stdev=32.98, samples=74 iops : min= 13, max= 57, avg=33.97, stdev= 8.23, samples=74 lat (msec) : 20=0.04%, 50=0.08%, 100=1.37%, 250=68.98%, 500=29.41% lat (msec) : 750=0.12% cpu : usr=0.26%, sys=1.45%, ctx=4426, 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=179712: Wed Aug 26 09:01:54 2026 read: IOPS=34, BW=136KiB/s (139kB/s)(5060KiB/37205msec) slat (usec): min=55, max=88880, avg=16283.89, stdev=9834.91 clat (msec): min=15, max=485, avg=221.21, stdev=57.71 lat (msec): min=33, max=492, avg=237.50, stdev=60.18 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 134], 10.00th=[ 157], 20.00th=[ 176], | 30.00th=[ 190], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 232], | 70.00th=[ 249], 80.00th=[ 268], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 376], 99.50th=[ 405], 99.90th=[ 460], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 15, max= 215, per=25.47%, avg=135.77, stdev=35.66, samples=73 iops : min= 3, max= 53, avg=33.42, stdev= 9.00, samples=73 write: IOPS=34, BW=139KiB/s (143kB/s)(5180KiB/37205msec); 0 zone resets slat (usec): min=29, max=30111, avg=262.51, stdev=1277.38 clat (msec): min=68, max=500, avg=226.75, stdev=59.83 lat (msec): min=69, max=500, avg=227.01, stdev=59.79 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 140], 10.00th=[ 163], 20.00th=[ 182], | 30.00th=[ 197], 40.00th=[ 209], 50.00th=[ 220], 60.00th=[ 232], | 70.00th=[ 249], 80.00th=[ 271], 90.00th=[ 300], 95.00th=[ 334], | 99.00th=[ 418], 99.50th=[ 456], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 78, max= 271, per=24.96%, avg=138.52, stdev=37.12, samples=73 iops : min= 19, max= 67, avg=34.10, stdev= 9.25, samples=73 lat (msec) : 20=0.04%, 50=0.12%, 100=1.21%, 250=69.73%, 500=28.83% lat (msec) : 750=0.08% cpu : usr=0.22%, sys=1.57%, ctx=4170, 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=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=533KiB/s (546kB/s), 132KiB/s-136KiB/s (135kB/s-139kB/s), io=19.6MiB (20.5MB), run=37205-37634msec WRITE: bw=555KiB/s (568kB/s), 138KiB/s-140KiB/s (141kB/s-143kB/s), io=20.4MiB (21.4MB), run=37205-37634msec 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=179723: Wed Aug 26 09:02:06 2026 read: IOPS=1, BW=61.8MiB/s (64.8MB/s)(40.0MiB/647msec) slat (nsec): min=70652k, max=70652k, avg=70651693.00, stdev= 0.00 clat (nsec): min=532718k, max=532718k, avg=532717532.00, stdev= 0.00 lat (nsec): min=603373k, max=603373k, avg=603372977.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 535], 5.00th=[ 535], 10.00th=[ 535], 20.00th=[ 535], | 30.00th=[ 535], 40.00th=[ 535], 50.00th=[ 535], 60.00th=[ 535], | 70.00th=[ 535], 80.00th=[ 535], 90.00th=[ 535], 95.00th=[ 535], | 99.00th=[ 535], 99.50th=[ 535], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.70%, ctx=5, 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=61.8MiB/s (64.8MB/s), 61.8MiB/s-61.8MiB/s (64.8MB/s-64.8MB/s), io=40.0MiB (41.9MB), run=647-647msec 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