== sanity test 398c: run fio to test AIO ================= 10:13:01 (1789481581) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.314883 s, 133 MB/s osc.lustre-OST0000-osc-ffff92f00787d000.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=148418: Tue Sep 15 10:14:49 2026 write: IOPS=24, BW=99.9KiB/s (102kB/s)(10.0MiB/102474msec); 0 zone resets slat (usec): min=29, max=9937, avg=220.83, stdev=505.16 clat (msec): min=82, max=1069, avg=639.77, stdev=148.29 lat (msec): min=82, max=1069, avg=640.00, stdev=148.30 clat percentiles (msec): | 1.00th=[ 247], 5.00th=[ 405], 10.00th=[ 451], 20.00th=[ 527], | 30.00th=[ 567], 40.00th=[ 600], 50.00th=[ 642], 60.00th=[ 684], | 70.00th=[ 718], 80.00th=[ 768], 90.00th=[ 827], 95.00th=[ 869], | 99.00th=[ 969], 99.50th=[ 1003], 99.90th=[ 1053], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 15, max= 253, per=24.81%, avg=99.00, stdev=32.11, samples=204 iops : min= 3, max= 63, avg=24.34, stdev= 8.06, samples=204 lat (msec) : 100=0.62%, 250=0.62%, 500=15.12%, 750=59.80%, 1000=23.40% lat (msec) : 2000=0.43% cpu : usr=0.06%, sys=0.33%, ctx=2118, 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=148419: Tue Sep 15 10:14:49 2026 write: IOPS=24, BW=99.9KiB/s (102kB/s)(10.0MiB/102505msec); 0 zone resets slat (usec): min=22, max=8688, avg=215.35, stdev=499.39 clat (msec): min=53, max=1097, avg=639.89, stdev=146.60 lat (msec): min=54, max=1097, avg=640.11, stdev=146.60 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 409], 10.00th=[ 468], 20.00th=[ 527], | 30.00th=[ 567], 40.00th=[ 600], 50.00th=[ 642], 60.00th=[ 676], | 70.00th=[ 718], 80.00th=[ 768], 90.00th=[ 827], 95.00th=[ 869], | 99.00th=[ 961], 99.50th=[ 1011], 99.90th=[ 1083], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 16, max= 232, per=24.82%, avg=99.01, stdev=31.39, samples=204 iops : min= 4, max= 58, avg=24.34, stdev= 7.88, samples=204 lat (msec) : 100=0.16%, 250=0.66%, 500=14.61%, 750=61.76%, 1000=22.15% lat (msec) : 2000=0.66% cpu : usr=0.06%, sys=0.34%, ctx=2203, 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=148420: Tue Sep 15 10:14:49 2026 write: IOPS=25, BW=100KiB/s (102kB/s)(10.0MiB/102303msec); 0 zone resets slat (usec): min=22, max=7309, avg=221.95, stdev=477.60 clat (msec): min=73, max=1106, avg=638.90, stdev=148.73 lat (msec): min=74, max=1107, avg=639.13, stdev=148.75 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 405], 10.00th=[ 456], 20.00th=[ 518], | 30.00th=[ 567], 40.00th=[ 609], 50.00th=[ 642], 60.00th=[ 684], | 70.00th=[ 718], 80.00th=[ 760], 90.00th=[ 818], 95.00th=[ 869], | 99.00th=[ 961], 99.50th=[ 1036], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 16, max= 255, per=24.94%, avg=99.50, stdev=33.37, samples=203 iops : min= 4, max= 63, avg=24.46, stdev= 8.33, samples=203 lat (msec) : 100=0.62%, 250=0.62%, 500=15.66%, 750=59.92%, 1000=22.62% lat (msec) : 2000=0.55% cpu : usr=0.07%, sys=0.32%, ctx=2023, 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=148421: Tue Sep 15 10:14:49 2026 write: IOPS=24, BW=99.9KiB/s (102kB/s)(10.0MiB/102506msec); 0 zone resets slat (usec): min=27, max=6694, avg=229.39, stdev=503.17 clat (msec): min=81, max=1112, avg=639.85, stdev=146.78 lat (msec): min=81, max=1112, avg=640.08, stdev=146.79 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 405], 10.00th=[ 460], 20.00th=[ 518], | 30.00th=[ 558], 40.00th=[ 600], 50.00th=[ 642], 60.00th=[ 684], | 70.00th=[ 718], 80.00th=[ 760], 90.00th=[ 827], 95.00th=[ 877], | 99.00th=[ 969], 99.50th=[ 978], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 24, max= 248, per=24.82%, avg=99.02, stdev=30.17, samples=204 iops : min= 6, max= 62, avg=24.34, stdev= 7.54, samples=204 lat (msec) : 100=0.04%, 250=0.66%, 500=15.82%, 750=60.66%, 1000=22.50% lat (msec) : 2000=0.31% cpu : usr=0.06%, sys=0.34%, ctx=2159, 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=400KiB/s (409kB/s), 99.9KiB/s-100KiB/s (102kB/s-102kB/s), io=40.0MiB (41.9MB), run=102303-102506msec 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=148447: Tue Sep 15 10:15:53 2026 read: IOPS=21, BW=85.2KiB/s (87.3kB/s)(5048KiB/59219msec) slat (usec): min=2088, max=22268, avg=7529.79, stdev=3078.76 clat (msec): min=10, max=625, avg=233.32, stdev=56.54 lat (msec): min=17, max=630, avg=240.86, stdev=56.98 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 150], 10.00th=[ 171], 20.00th=[ 192], | 30.00th=[ 209], 40.00th=[ 220], 50.00th=[ 230], 60.00th=[ 241], | 70.00th=[ 255], 80.00th=[ 275], 90.00th=[ 296], 95.00th=[ 321], | 99.00th=[ 376], 99.50th=[ 414], 99.90th=[ 584], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 23, max= 184, per=25.16%, avg=85.05, stdev=29.39, samples=117 iops : min= 5, max= 46, avg=20.79, stdev= 7.39, samples=117 write: IOPS=21, BW=87.7KiB/s (89.8kB/s)(5192KiB/59219msec); 0 zone resets slat (usec): min=29, max=7908, avg=257.92, stdev=478.79 clat (msec): min=169, max=872, avg=493.78, stdev=124.25 lat (msec): min=170, max=872, avg=494.04, stdev=124.27 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 313], 10.00th=[ 351], 20.00th=[ 384], | 30.00th=[ 422], 40.00th=[ 451], 50.00th=[ 481], 60.00th=[ 514], | 70.00th=[ 558], 80.00th=[ 609], 90.00th=[ 676], 95.00th=[ 709], | 99.00th=[ 785], 99.50th=[ 827], 99.90th=[ 869], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 40, max= 200, per=24.81%, avg=87.34, stdev=26.32, samples=117 iops : min= 10, max= 50, avg=21.37, stdev= 6.56, samples=117 lat (msec) : 20=0.08%, 50=0.16%, 100=0.23%, 250=33.87%, 500=43.01% lat (msec) : 750=21.68%, 1000=0.98% cpu : usr=0.13%, sys=1.00%, ctx=4816, 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=148448: Tue Sep 15 10:15:53 2026 read: IOPS=21, BW=84.0KiB/s (86.0kB/s)(4976KiB/59222msec) slat (usec): min=62, max=26465, avg=7416.04, stdev=3091.35 clat (msec): min=9, max=442, avg=233.24, stdev=51.80 lat (msec): min=11, max=450, avg=240.66, stdev=52.54 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 150], 10.00th=[ 176], 20.00th=[ 197], | 30.00th=[ 209], 40.00th=[ 222], 50.00th=[ 232], 60.00th=[ 243], | 70.00th=[ 257], 80.00th=[ 271], 90.00th=[ 296], 95.00th=[ 317], | 99.00th=[ 368], 99.50th=[ 393], 99.90th=[ 430], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 15, max= 159, per=24.74%, avg=83.62, stdev=28.20, samples=117 iops : min= 3, max= 39, avg=20.44, stdev= 7.07, samples=117 write: IOPS=22, BW=88.9KiB/s (91.0kB/s)(5264KiB/59222msec); 0 zone resets slat (usec): min=30, max=5328, avg=227.38, stdev=373.13 clat (msec): min=77, max=883, avg=491.69, stdev=129.56 lat (msec): min=78, max=883, avg=491.92, stdev=129.58 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 296], 10.00th=[ 338], 20.00th=[ 384], | 30.00th=[ 418], 40.00th=[ 447], 50.00th=[ 485], 60.00th=[ 523], | 70.00th=[ 558], 80.00th=[ 609], 90.00th=[ 667], 95.00th=[ 709], | 99.00th=[ 785], 99.50th=[ 818], 99.90th=[ 877], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 32, max= 208, per=25.10%, avg=88.34, stdev=27.04, samples=117 iops : min= 8, max= 52, avg=21.62, stdev= 6.77, samples=117 lat (msec) : 10=0.04%, 20=0.08%, 50=0.16%, 100=0.12%, 250=32.97% lat (msec) : 500=42.97%, 750=22.42%, 1000=1.25% cpu : usr=0.15%, sys=0.95%, ctx=4763, 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=148449: Tue Sep 15 10:15:53 2026 read: IOPS=21, BW=84.2KiB/s (86.2kB/s)(4984KiB/59224msec) slat (usec): min=2548, max=27095, avg=7506.72, stdev=3140.46 clat (msec): min=9, max=442, avg=232.80, stdev=48.75 lat (msec): min=14, max=451, avg=240.32, stdev=49.20 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 155], 10.00th=[ 176], 20.00th=[ 194], | 30.00th=[ 209], 40.00th=[ 224], 50.00th=[ 232], 60.00th=[ 243], | 70.00th=[ 257], 80.00th=[ 275], 90.00th=[ 292], 95.00th=[ 309], | 99.00th=[ 347], 99.50th=[ 368], 99.90th=[ 409], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 8, max= 160, per=24.89%, avg=84.14, stdev=31.17, samples=117 iops : min= 2, max= 40, avg=20.56, stdev= 7.83, samples=117 write: IOPS=22, BW=88.7KiB/s (90.9kB/s)(5256KiB/59224msec); 0 zone resets slat (usec): min=37, max=4117, avg=239.70, stdev=378.82 clat (msec): min=142, max=845, avg=491.60, stdev=125.19 lat (msec): min=143, max=845, avg=491.84, stdev=125.21 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 296], 10.00th=[ 351], 20.00th=[ 388], | 30.00th=[ 418], 40.00th=[ 451], 50.00th=[ 485], 60.00th=[ 518], | 70.00th=[ 550], 80.00th=[ 600], 90.00th=[ 667], 95.00th=[ 709], | 99.00th=[ 785], 99.50th=[ 802], 99.90th=[ 827], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 39, max= 208, per=25.03%, avg=88.10, stdev=26.68, samples=117 iops : min= 9, max= 52, avg=21.56, stdev= 6.66, samples=117 lat (msec) : 10=0.04%, 50=0.20%, 100=0.12%, 250=33.12%, 500=43.24% lat (msec) : 750=22.15%, 1000=1.13% cpu : usr=0.13%, sys=0.95%, ctx=4840, 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=148450: Tue Sep 15 10:15:53 2026 read: IOPS=21, BW=85.5KiB/s (87.5kB/s)(5060KiB/59190msec) slat (usec): min=2202, max=22158, avg=7504.75, stdev=3132.55 clat (msec): min=8, max=637, avg=234.54, stdev=53.36 lat (msec): min=13, max=648, avg=242.05, stdev=53.93 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 157], 10.00th=[ 176], 20.00th=[ 194], | 30.00th=[ 211], 40.00th=[ 222], 50.00th=[ 234], 60.00th=[ 245], | 70.00th=[ 255], 80.00th=[ 271], 90.00th=[ 296], 95.00th=[ 317], | 99.00th=[ 368], 99.50th=[ 418], 99.90th=[ 558], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 24, max= 152, per=25.23%, avg=85.26, stdev=27.59, samples=117 iops : min= 6, max= 38, avg=20.85, stdev= 6.89, samples=117 write: IOPS=21, BW=87.5KiB/s (89.6kB/s)(5180KiB/59190msec); 0 zone resets slat (usec): min=33, max=7884, avg=241.86, stdev=405.28 clat (msec): min=146, max=889, avg=493.09, stdev=126.97 lat (msec): min=146, max=889, avg=493.33, stdev=126.99 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 305], 10.00th=[ 334], 20.00th=[ 384], | 30.00th=[ 422], 40.00th=[ 451], 50.00th=[ 485], 60.00th=[ 518], | 70.00th=[ 558], 80.00th=[ 609], 90.00th=[ 667], 95.00th=[ 709], | 99.00th=[ 793], 99.50th=[ 802], 99.90th=[ 844], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 32, max= 184, per=24.78%, avg=87.22, stdev=23.94, samples=117 iops : min= 8, max= 46, avg=21.34, stdev= 6.00, samples=117 lat (msec) : 10=0.08%, 50=0.16%, 100=0.04%, 250=32.93%, 500=43.55% lat (msec) : 750=22.23%, 1000=1.02% cpu : usr=0.12%, sys=1.00%, ctx=4822, 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=339KiB/s (347kB/s), 84.0KiB/s-85.5KiB/s (86.0kB/s-87.5kB/s), io=19.6MiB (20.5MB), run=59190-59224msec WRITE: bw=353KiB/s (361kB/s), 87.5KiB/s-88.9KiB/s (89.6kB/s-91.0kB/s), io=20.4MiB (21.4MB), run=59190-59224msec 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=148462: Tue Sep 15 10:15:59 2026 read: IOPS=3, BW=147MiB/s (154MB/s)(40.0MiB/273msec) slat (nsec): min=14450k, max=14450k, avg=14450299.00, stdev= 0.00 clat (nsec): min=247689k, max=247689k, avg=247688703.00, stdev= 0.00 lat (nsec): min=262143k, max=262143k, avg=262143098.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 249], 10.00th=[ 249], 20.00th=[ 249], | 30.00th=[ 249], 40.00th=[ 249], 50.00th=[ 249], 60.00th=[ 249], | 70.00th=[ 249], 80.00th=[ 249], 90.00th=[ 249], 95.00th=[ 249], | 99.00th=[ 249], 99.50th=[ 249], 99.90th=[ 249], 99.95th=[ 249], | 99.99th=[ 249] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=4.78%, ctx=43, 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=147MiB/s (154MB/s), 147MiB/s-147MiB/s (154MB/s-154MB/s), io=40.0MiB (41.9MB), run=273-273msec 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