== sanity test 398c: run fio to test AIO ================= 13:31:16 (1788802276) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.714074 s, 58.7 MB/s osc.lustre-OST0000-osc-ffffa0344f0a3800.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=144534: Mon Sep 7 13:34:17 2026 write: IOPS=14, BW=59.0KiB/s (61.4kB/s)(10.0MiB/170730msec); 0 zone resets slat (usec): min=23, max=36701, avg=230.93, stdev=1112.77 clat (msec): min=157, max=2722, avg=1066.40, stdev=362.27 lat (msec): min=157, max=2722, avg=1066.63, stdev=362.31 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 542], 10.00th=[ 718], 20.00th=[ 835], | 30.00th=[ 894], 40.00th=[ 953], 50.00th=[ 1020], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1250], 90.00th=[ 1502], 95.00th=[ 1770], | 99.00th=[ 2333], 99.50th=[ 2567], 99.90th=[ 2735], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 7, max= 240, per=25.41%, avg=60.73, stdev=34.82, samples=330 iops : min= 1, max= 60, avg=14.68, stdev= 8.76, samples=330 lat (msec) : 250=0.62%, 500=3.83%, 750=7.66%, 1000=34.80%, 2000=50.43% lat (msec) : >=2000=2.66% cpu : usr=0.05%, sys=0.23%, ctx=1654, 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=144535: Mon Sep 7 13:34:17 2026 write: IOPS=14, BW=59.0KiB/s (61.4kB/s)(10.0MiB/170799msec); 0 zone resets slat (usec): min=22, max=15096, avg=255.22, stdev=926.75 clat (msec): min=238, max=2770, avg=1066.97, stdev=362.00 lat (msec): min=238, max=2770, avg=1067.23, stdev=362.03 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 535], 10.00th=[ 709], 20.00th=[ 827], | 30.00th=[ 902], 40.00th=[ 961], 50.00th=[ 1020], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1250], 90.00th=[ 1485], 95.00th=[ 1754], | 99.00th=[ 2400], 99.50th=[ 2567], 99.90th=[ 2702], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min= 7, max= 256, per=25.26%, avg=60.38, stdev=29.84, samples=332 iops : min= 1, max= 64, avg=14.60, stdev= 7.49, samples=332 lat (msec) : 250=0.62%, 500=3.91%, 750=7.93%, 1000=34.34%, 2000=50.16% lat (msec) : >=2000=3.05% cpu : usr=0.05%, sys=0.25%, 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=144536: Mon Sep 7 13:34:17 2026 write: IOPS=14, BW=59.0KiB/s (61.4kB/s)(10.0MiB/170805msec); 0 zone resets slat (usec): min=20, max=16961, avg=222.64, stdev=872.19 clat (msec): min=134, max=2728, avg=1067.04, stdev=362.33 lat (msec): min=134, max=2728, avg=1067.26, stdev=362.36 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 567], 10.00th=[ 693], 20.00th=[ 818], | 30.00th=[ 911], 40.00th=[ 969], 50.00th=[ 1028], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1267], 90.00th=[ 1502], 95.00th=[ 1770], | 99.00th=[ 2467], 99.50th=[ 2567], 99.90th=[ 2702], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 7, max= 173, per=25.64%, avg=61.28, stdev=30.08, samples=327 iops : min= 1, max= 43, avg=14.82, stdev= 7.55, samples=327 lat (msec) : 250=0.66%, 500=3.59%, 750=9.80%, 1000=30.70%, 2000=52.58% lat (msec) : >=2000=2.66% cpu : usr=0.05%, sys=0.21%, ctx=1599, 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=144537: Mon Sep 7 13:34:17 2026 write: IOPS=15, BW=60.1KiB/s (61.6kB/s)(10.0MiB/170335msec); 0 zone resets slat (usec): min=23, max=24550, avg=301.71, stdev=1335.62 clat (msec): min=149, max=2868, avg=1063.97, stdev=366.30 lat (msec): min=151, max=2868, avg=1064.28, stdev=366.34 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 584], 10.00th=[ 709], 20.00th=[ 818], | 30.00th=[ 894], 40.00th=[ 961], 50.00th=[ 1011], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1267], 90.00th=[ 1469], 95.00th=[ 1737], | 99.00th=[ 2400], 99.50th=[ 2567], 99.90th=[ 2836], 99.95th=[ 2869], | 99.99th=[ 2869] bw ( KiB/s): min= 7, max= 247, per=25.19%, avg=60.20, stdev=32.21, samples=333 iops : min= 1, max= 61, avg=14.55, stdev= 8.08, samples=333 lat (msec) : 250=0.86%, 500=3.52%, 750=9.02%, 1000=33.83%, 2000=50.00% lat (msec) : >=2000=2.77% cpu : usr=0.05%, sys=0.25%, ctx=1748, 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=240KiB/s (246kB/s), 59.0KiB/s-60.1KiB/s (61.4kB/s-61.6kB/s), io=40.0MiB (41.9MB), run=170335-170805msec 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=144573: Mon Sep 7 13:36:33 2026 read: IOPS=10, BW=40.6KiB/s (41.6kB/s)(5048KiB/124352msec) slat (msec): min=2, max=340, avg=17.04, stdev=13.48 clat (msec): min=23, max=1119, avg=468.55, stdev=156.21 lat (msec): min=39, max=1151, avg=485.60, stdev=158.41 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 257], 10.00th=[ 288], 20.00th=[ 342], | 30.00th=[ 384], 40.00th=[ 418], 50.00th=[ 447], 60.00th=[ 481], | 70.00th=[ 523], 80.00th=[ 584], 90.00th=[ 676], 95.00th=[ 776], | 99.00th=[ 911], 99.50th=[ 969], 99.90th=[ 1099], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 103, per=25.63%, avg=41.26, stdev=20.75, samples=237 iops : min= 1, max= 25, avg= 9.73, stdev= 5.21, samples=237 write: IOPS=10, BW=41.8KiB/s (42.8kB/s)(5192KiB/124352msec); 0 zone resets slat (usec): min=34, max=19053, avg=397.93, stdev=1225.49 clat (msec): min=196, max=2753, avg=1056.58, stdev=385.78 lat (msec): min=196, max=2761, avg=1056.98, stdev=385.74 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 523], 10.00th=[ 609], 20.00th=[ 743], | 30.00th=[ 827], 40.00th=[ 911], 50.00th=[ 1020], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1301], 90.00th=[ 1519], 95.00th=[ 1770], | 99.00th=[ 2500], 99.50th=[ 2601], 99.90th=[ 2735], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min= 7, max= 104, per=24.93%, avg=41.88, stdev=20.67, samples=240 iops : min= 1, max= 26, avg= 9.88, stdev= 5.21, samples=240 lat (msec) : 50=0.16%, 100=0.08%, 250=2.03%, 500=31.60%, 750=23.20% lat (msec) : 1000=16.48%, 2000=25.31%, >=2000=1.13% cpu : usr=0.11%, sys=0.74%, ctx=4542, 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=144574: Mon Sep 7 13:36:33 2026 read: IOPS=10, BW=40.1KiB/s (41.1kB/s)(4976KiB/123998msec) slat (usec): min=2942, max=70743, avg=16909.54, stdev=9867.01 clat (msec): min=38, max=1121, avg=471.04, stdev=162.11 lat (msec): min=49, max=1137, avg=487.96, stdev=164.09 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 268], 10.00th=[ 305], 20.00th=[ 342], | 30.00th=[ 376], 40.00th=[ 405], 50.00th=[ 439], 60.00th=[ 477], | 70.00th=[ 527], 80.00th=[ 584], 90.00th=[ 701], 95.00th=[ 802], | 99.00th=[ 944], 99.50th=[ 995], 99.90th=[ 1099], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 111, per=24.77%, avg=39.88, stdev=21.49, samples=243 iops : min= 1, max= 27, avg= 9.38, stdev= 5.41, samples=243 write: IOPS=10, BW=42.5KiB/s (43.5kB/s)(5264KiB/123998msec); 0 zone resets slat (usec): min=28, max=19876, avg=381.35, stdev=1202.46 clat (msec): min=356, max=2697, avg=1042.71, stdev=378.37 lat (msec): min=357, max=2697, avg=1043.09, stdev=378.41 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 535], 10.00th=[ 625], 20.00th=[ 726], | 30.00th=[ 818], 40.00th=[ 894], 50.00th=[ 995], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1301], 90.00th=[ 1519], 95.00th=[ 1754], | 99.00th=[ 2265], 99.50th=[ 2567], 99.90th=[ 2702], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 7, max= 136, per=25.24%, avg=42.41, stdev=22.36, samples=242 iops : min= 1, max= 34, avg=10.01, stdev= 5.63, samples=242 lat (msec) : 50=0.04%, 100=0.20%, 250=1.52%, 500=31.45%, 750=23.48% lat (msec) : 1000=17.77%, 2000=24.53%, >=2000=1.02% cpu : usr=0.14%, sys=0.69%, ctx=4713, 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=144575: Mon Sep 7 13:36:33 2026 read: IOPS=10, BW=40.1KiB/s (41.1kB/s)(4984KiB/124283msec) slat (usec): min=3227, max=70998, avg=16935.87, stdev=9965.26 clat (msec): min=38, max=1129, avg=467.77, stdev=152.50 lat (msec): min=48, max=1141, avg=484.72, stdev=155.12 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 264], 10.00th=[ 300], 20.00th=[ 342], | 30.00th=[ 380], 40.00th=[ 414], 50.00th=[ 443], 60.00th=[ 481], | 70.00th=[ 523], 80.00th=[ 584], 90.00th=[ 676], 95.00th=[ 751], | 99.00th=[ 902], 99.50th=[ 961], 99.90th=[ 1053], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 119, per=25.50%, avg=41.05, stdev=20.91, samples=237 iops : min= 1, max= 29, avg= 9.68, stdev= 5.22, samples=237 write: IOPS=10, BW=42.3KiB/s (43.3kB/s)(5256KiB/124283msec); 0 zone resets slat (usec): min=24, max=34959, avg=420.75, stdev=1606.50 clat (msec): min=262, max=2723, avg=1050.37, stdev=381.71 lat (msec): min=262, max=2724, avg=1050.80, stdev=381.76 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 550], 10.00th=[ 625], 20.00th=[ 735], | 30.00th=[ 810], 40.00th=[ 894], 50.00th=[ 995], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1318], 90.00th=[ 1519], 95.00th=[ 1770], | 99.00th=[ 2366], 99.50th=[ 2567], 99.90th=[ 2702], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 7, max= 112, per=24.92%, avg=41.86, stdev=22.00, samples=243 iops : min= 1, max= 28, avg= 9.88, stdev= 5.54, samples=243 lat (msec) : 50=0.08%, 100=0.16%, 250=1.76%, 500=30.90%, 750=24.14% lat (msec) : 1000=17.19%, 2000=24.73%, >=2000=1.05% cpu : usr=0.12%, sys=0.84%, ctx=4661, 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=144576: Mon Sep 7 13:36:33 2026 read: IOPS=10, BW=40.0KiB/s (41.0kB/s)(5060KiB/123432msec) slat (usec): min=52, max=67690, avg=16773.44, stdev=9783.55 clat (msec): min=19, max=991, avg=461.25, stdev=156.80 lat (msec): min=26, max=1015, avg=478.03, stdev=158.99 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 247], 10.00th=[ 292], 20.00th=[ 338], | 30.00th=[ 376], 40.00th=[ 405], 50.00th=[ 435], 60.00th=[ 472], | 70.00th=[ 523], 80.00th=[ 584], 90.00th=[ 676], 95.00th=[ 760], | 99.00th=[ 885], 99.50th=[ 936], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7, max= 111, per=25.44%, avg=40.96, stdev=21.04, samples=241 iops : min= 1, max= 27, avg= 9.66, stdev= 5.28, samples=241 write: IOPS=10, BW=41.0KiB/s (42.0kB/s)(5180KiB/123432msec); 0 zone resets slat (usec): min=30, max=14726, avg=378.78, stdev=1105.31 clat (msec): min=159, max=2661, avg=1056.67, stdev=380.05 lat (msec): min=159, max=2661, avg=1057.06, stdev=380.05 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 550], 10.00th=[ 625], 20.00th=[ 751], | 30.00th=[ 827], 40.00th=[ 919], 50.00th=[ 1011], 60.00th=[ 1133], | 70.00th=[ 1217], 80.00th=[ 1301], 90.00th=[ 1519], 95.00th=[ 1754], | 99.00th=[ 2366], 99.50th=[ 2567], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 7, max= 104, per=24.95%, avg=41.91, stdev=20.60, samples=240 iops : min= 1, max= 26, avg= 9.89, stdev= 5.16, samples=240 lat (msec) : 20=0.04%, 50=0.23%, 100=0.31%, 250=2.15%, 500=31.56% lat (msec) : 750=22.46%, 1000=17.30%, 2000=24.61%, >=2000=1.33% cpu : usr=0.14%, sys=0.86%, ctx=4751, 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=161KiB/s (165kB/s), 40.1KiB/s-40.0KiB/s (41.1kB/s-41.0kB/s), io=19.6MiB (20.5MB), run=123432-124352msec WRITE: bw=168KiB/s (172kB/s), 41.8KiB/s-42.5KiB/s (42.8kB/s-43.5kB/s), io=20.4MiB (21.4MB), run=123432-124352msec 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=144600: Mon Sep 7 13:36:45 2026 read: IOPS=1, BW=58.4MiB/s (61.2MB/s)(40.0MiB/685msec) slat (nsec): min=45187k, max=45187k, avg=45186757.00, stdev= 0.00 clat (nsec): min=604531k, max=604531k, avg=604530887.00, stdev= 0.00 lat (nsec): min=649722k, max=649722k, avg=649721785.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 609], 5.00th=[ 609], 10.00th=[ 609], 20.00th=[ 609], | 30.00th=[ 609], 40.00th=[ 609], 50.00th=[ 609], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] lat (msec) : 750=100.00% cpu : usr=0.15%, sys=2.49%, ctx=45, 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=58.4MiB/s (61.2MB/s), 58.4MiB/s-58.4MiB/s (61.2MB/s-61.2MB/s), io=40.0MiB (41.9MB), run=685-685msec 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