== sanity test 398c: run fio to test AIO ================= 18:33:10 (1786833190) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.467566 s, 89.7 MB/s osc.lustre-OST0000-osc-ffff8fcfe6e3f000.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=146764: Sat Aug 15 18:36:04 2026 write: IOPS=15, BW=62.9KiB/s (64.4kB/s)(10.0MiB/162921msec); 0 zone resets slat (usec): min=47, max=15267, avg=265.91, stdev=756.78 clat (msec): min=237, max=2114, avg=1016.77, stdev=255.45 lat (msec): min=237, max=2118, avg=1017.04, stdev=255.44 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 667], 10.00th=[ 726], 20.00th=[ 818], | 30.00th=[ 877], 40.00th=[ 936], 50.00th=[ 995], 60.00th=[ 1053], | 70.00th=[ 1116], 80.00th=[ 1200], 90.00th=[ 1368], 95.00th=[ 1469], | 99.00th=[ 1754], 99.50th=[ 1854], 99.90th=[ 2039], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 7, max= 128, per=26.65%, avg=66.89, stdev=32.91, samples=301 iops : min= 1, max= 32, avg=16.26, stdev= 8.22, samples=301 lat (msec) : 250=0.04%, 500=2.54%, 750=9.88%, 1000=38.55%, 2000=48.75% lat (msec) : >=2000=0.23% cpu : usr=0.05%, sys=0.23%, ctx=1746, 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=146765: Sat Aug 15 18:36:04 2026 write: IOPS=15, BW=62.9KiB/s (64.5kB/s)(10.0MiB/162680msec); 0 zone resets slat (usec): min=49, max=18022, avg=269.63, stdev=782.05 clat (msec): min=120, max=2163, avg=1015.12, stdev=261.52 lat (msec): min=120, max=2163, avg=1015.39, stdev=261.57 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 642], 10.00th=[ 718], 20.00th=[ 810], | 30.00th=[ 869], 40.00th=[ 936], 50.00th=[ 1003], 60.00th=[ 1062], | 70.00th=[ 1133], 80.00th=[ 1217], 90.00th=[ 1351], 95.00th=[ 1469], | 99.00th=[ 1720], 99.50th=[ 1989], 99.90th=[ 2089], 99.95th=[ 2089], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 135, per=25.13%, avg=63.08, stdev=27.37, samples=319 iops : min= 1, max= 33, avg=15.31, stdev= 6.84, samples=319 lat (msec) : 250=0.04%, 500=2.11%, 750=10.98%, 1000=36.48%, 2000=50.00% lat (msec) : >=2000=0.39% cpu : usr=0.04%, sys=0.26%, ctx=2029, 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=146766: Sat Aug 15 18:36:04 2026 write: IOPS=15, BW=63.2KiB/s (64.7kB/s)(10.0MiB/162106msec); 0 zone resets slat (usec): min=50, max=14923, avg=295.33, stdev=891.36 clat (msec): min=171, max=2159, avg=1012.38, stdev=264.93 lat (msec): min=171, max=2160, avg=1012.68, stdev=264.93 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 651], 10.00th=[ 718], 20.00th=[ 810], | 30.00th=[ 877], 40.00th=[ 936], 50.00th=[ 995], 60.00th=[ 1062], | 70.00th=[ 1133], 80.00th=[ 1200], 90.00th=[ 1351], 95.00th=[ 1485], | 99.00th=[ 1687], 99.50th=[ 1821], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 255, per=25.13%, avg=63.08, stdev=28.91, samples=319 iops : min= 1, max= 63, avg=15.31, stdev= 7.23, samples=319 lat (msec) : 250=0.66%, 500=2.03%, 750=11.21%, 1000=36.52%, 2000=49.14% lat (msec) : >=2000=0.43% cpu : usr=0.04%, sys=0.28%, ctx=2196, 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=146767: Sat Aug 15 18:36:04 2026 write: IOPS=15, BW=62.9KiB/s (64.4kB/s)(10.0MiB/162771msec); 0 zone resets slat (usec): min=49, max=17585, avg=283.53, stdev=914.61 clat (msec): min=177, max=2084, avg=1015.73, stdev=258.78 lat (msec): min=178, max=2084, avg=1016.01, stdev=258.76 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 651], 10.00th=[ 718], 20.00th=[ 818], | 30.00th=[ 877], 40.00th=[ 944], 50.00th=[ 1003], 60.00th=[ 1062], | 70.00th=[ 1133], 80.00th=[ 1200], 90.00th=[ 1334], 95.00th=[ 1485], | 99.00th=[ 1720], 99.50th=[ 1871], 99.90th=[ 2039], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 15, max= 151, per=24.98%, avg=62.69, stdev=25.55, samples=321 iops : min= 3, max= 37, avg=15.21, stdev= 6.40, samples=321 lat (msec) : 250=0.04%, 500=2.27%, 750=10.31%, 1000=35.78%, 2000=51.25% lat (msec) : >=2000=0.35% cpu : usr=0.04%, sys=0.25%, ctx=1939, 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=251KiB/s (257kB/s), 62.9KiB/s-63.2KiB/s (64.4kB/s-64.7kB/s), io=40.0MiB (41.9MB), run=162106-162921msec 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=146800: Sat Aug 15 18:37:56 2026 read: IOPS=12, BW=48.7KiB/s (49.8kB/s)(5048KiB/103718msec) slat (usec): min=2870, max=67549, avg=13701.35, stdev=7715.43 clat (msec): min=8, max=886, avg=398.48, stdev=111.38 lat (msec): min=19, max=910, avg=412.18, stdev=112.75 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 255], 10.00th=[ 284], 20.00th=[ 317], | 30.00th=[ 338], 40.00th=[ 359], 50.00th=[ 384], 60.00th=[ 414], | 70.00th=[ 439], 80.00th=[ 477], 90.00th=[ 527], 95.00th=[ 592], | 99.00th=[ 760], 99.50th=[ 818], 99.90th=[ 877], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 125, per=25.03%, avg=48.31, stdev=24.10, samples=205 iops : min= 1, max= 31, avg=11.61, stdev= 6.08, samples=205 write: IOPS=12, BW=50.1KiB/s (51.3kB/s)(5192KiB/103718msec); 0 zone resets slat (usec): min=53, max=15463, avg=379.11, stdev=919.38 clat (msec): min=213, max=1647, avg=873.99, stdev=254.26 lat (msec): min=213, max=1649, avg=874.38, stdev=254.29 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 514], 10.00th=[ 592], 20.00th=[ 667], | 30.00th=[ 718], 40.00th=[ 776], 50.00th=[ 835], 60.00th=[ 894], | 70.00th=[ 969], 80.00th=[ 1070], 90.00th=[ 1267], 95.00th=[ 1368], | 99.00th=[ 1519], 99.50th=[ 1552], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 8, max= 112, per=25.09%, avg=50.44, stdev=20.52, samples=202 iops : min= 2, max= 28, avg=12.14, stdev= 5.14, samples=202 lat (msec) : 10=0.04%, 20=0.04%, 50=0.04%, 100=0.35%, 250=1.72% lat (msec) : 500=42.27%, 750=22.38%, 1000=19.14%, 2000=14.02% cpu : usr=0.11%, sys=0.65%, ctx=4962, 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=146801: Sat Aug 15 18:37:56 2026 read: IOPS=11, BW=47.9KiB/s (49.1kB/s)(4976KiB/103859msec) slat (usec): min=2799, max=55178, avg=13681.33, stdev=7129.22 clat (msec): min=21, max=911, avg=399.51, stdev=114.13 lat (msec): min=30, max=944, avg=413.20, stdev=115.25 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 249], 10.00th=[ 279], 20.00th=[ 313], | 30.00th=[ 338], 40.00th=[ 359], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 439], 80.00th=[ 481], 90.00th=[ 550], 95.00th=[ 600], | 99.00th=[ 776], 99.50th=[ 785], 99.90th=[ 877], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7, max= 111, per=24.74%, avg=47.75, stdev=22.79, samples=204 iops : min= 1, max= 27, avg=11.47, stdev= 5.73, samples=204 write: IOPS=12, BW=50.7KiB/s (51.9kB/s)(5264KiB/103859msec); 0 zone resets slat (usec): min=55, max=19501, avg=321.22, stdev=784.66 clat (msec): min=286, max=1651, avg=869.27, stdev=254.18 lat (msec): min=286, max=1652, avg=869.59, stdev=254.20 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 510], 10.00th=[ 584], 20.00th=[ 659], | 30.00th=[ 718], 40.00th=[ 776], 50.00th=[ 835], 60.00th=[ 894], | 70.00th=[ 961], 80.00th=[ 1083], 90.00th=[ 1250], 95.00th=[ 1368], | 99.00th=[ 1502], 99.50th=[ 1552], 99.90th=[ 1586], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 7, max= 144, per=25.23%, avg=50.71, stdev=20.86, samples=204 iops : min= 1, max= 36, avg=12.21, stdev= 5.27, samples=204 lat (msec) : 50=0.12%, 100=0.27%, 250=2.07%, 500=40.62%, 750=23.28% lat (msec) : 1000=20.08%, 2000=13.55% cpu : usr=0.09%, sys=0.64%, ctx=4516, 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=146802: Sat Aug 15 18:37:56 2026 read: IOPS=11, BW=47.0KiB/s (49.1kB/s)(4984KiB/103862msec) slat (usec): min=2926, max=68895, avg=13604.05, stdev=7460.37 clat (msec): min=14, max=857, avg=396.30, stdev=107.42 lat (msec): min=24, max=873, avg=409.91, stdev=108.51 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 247], 10.00th=[ 279], 20.00th=[ 317], | 30.00th=[ 338], 40.00th=[ 363], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 439], 80.00th=[ 472], 90.00th=[ 527], 95.00th=[ 584], | 99.00th=[ 726], 99.50th=[ 760], 99.90th=[ 810], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7, max= 120, per=24.93%, avg=48.12, stdev=22.42, samples=204 iops : min= 1, max= 30, avg=11.56, stdev= 5.66, samples=204 write: IOPS=12, BW=50.6KiB/s (51.8kB/s)(5256KiB/103862msec); 0 zone resets slat (usec): min=55, max=20941, avg=407.50, stdev=1220.15 clat (msec): min=272, max=1661, avg=872.78, stdev=260.40 lat (msec): min=273, max=1661, avg=873.19, stdev=260.41 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 498], 10.00th=[ 575], 20.00th=[ 659], | 30.00th=[ 718], 40.00th=[ 776], 50.00th=[ 835], 60.00th=[ 894], | 70.00th=[ 969], 80.00th=[ 1083], 90.00th=[ 1284], 95.00th=[ 1385], | 99.00th=[ 1536], 99.50th=[ 1569], 99.90th=[ 1653], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7, max= 119, per=24.81%, avg=49.86, stdev=19.83, samples=206 iops : min= 1, max= 29, avg=12.00, stdev= 4.99, samples=206 lat (msec) : 20=0.08%, 50=0.16%, 100=0.16%, 250=2.23%, 500=41.64% lat (msec) : 750=22.50%, 1000=19.26%, 2000=13.98% cpu : usr=0.09%, sys=0.70%, ctx=4833, 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=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=146803: Sat Aug 15 18:37:56 2026 read: IOPS=12, BW=49.1KiB/s (50.3kB/s)(5060KiB/103003msec) slat (usec): min=100, max=65578, avg=13364.66, stdev=7447.80 clat (msec): min=16, max=901, avg=399.88, stdev=116.21 lat (msec): min=33, max=940, avg=413.25, stdev=117.85 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 251], 10.00th=[ 279], 20.00th=[ 317], | 30.00th=[ 338], 40.00th=[ 359], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 447], 80.00th=[ 485], 90.00th=[ 542], 95.00th=[ 592], | 99.00th=[ 768], 99.50th=[ 810], 99.90th=[ 885], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 104, per=25.33%, avg=48.88, stdev=21.14, samples=203 iops : min= 1, max= 26, avg=11.75, stdev= 5.38, samples=203 write: IOPS=12, BW=50.3KiB/s (51.5kB/s)(5180KiB/103003msec); 0 zone resets slat (usec): min=59, max=8406, avg=362.24, stdev=760.15 clat (msec): min=155, max=1652, avg=867.82, stdev=265.12 lat (msec): min=157, max=1656, avg=868.19, stdev=265.16 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 502], 10.00th=[ 567], 20.00th=[ 651], | 30.00th=[ 718], 40.00th=[ 768], 50.00th=[ 827], 60.00th=[ 894], | 70.00th=[ 978], 80.00th=[ 1083], 90.00th=[ 1284], 95.00th=[ 1368], | 99.00th=[ 1536], 99.50th=[ 1586], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 7, max= 120, per=24.76%, avg=49.76, stdev=22.19, samples=204 iops : min= 1, max= 30, avg=11.98, stdev= 5.58, samples=204 lat (msec) : 20=0.04%, 50=0.23%, 100=0.43%, 250=1.91%, 500=41.17% lat (msec) : 750=24.06%, 1000=18.28%, 2000=13.87% cpu : usr=0.10%, sys=0.65%, ctx=4745, 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=193KiB/s (198kB/s), 47.9KiB/s-49.1KiB/s (49.1kB/s-50.3kB/s), io=19.6MiB (20.5MB), run=103003-103862msec WRITE: bw=201KiB/s (206kB/s), 50.1KiB/s-50.7KiB/s (51.3kB/s-51.9kB/s), io=20.4MiB (21.4MB), run=103003-103862msec 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=146822: Sat Aug 15 18:38:05 2026 read: IOPS=2, BW=90.7MiB/s (95.1MB/s)(40.0MiB/441msec) slat (nsec): min=45547k, max=45547k, avg=45547074.00, stdev= 0.00 clat (nsec): min=375362k, max=375362k, avg=375361750.00, stdev= 0.00 lat (nsec): min=420914k, max=420914k, avg=420913668.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 376], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 376], 80.00th=[ 376], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.18%, ctx=23, 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=90.7MiB/s (95.1MB/s), 90.7MiB/s-90.7MiB/s (95.1MB/s-95.1MB/s), io=40.0MiB (41.9MB), run=441-441msec 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