== sanity test 398c: run fio to test AIO ================= 21:15:03 (1767320103) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.598616 s, 70.1 MB/s osc.lustre-OST0000-osc-ffff9cf103278800.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=151327: Thu Jan 1 21:17:43 2026 write: IOPS=17, BW=68.5KiB/s (70.1kB/s)(10.0MiB/149498msec); 0 zone resets slat (usec): min=22, max=17426, avg=173.81, stdev=812.98 clat (msec): min=142, max=2138, avg=933.91, stdev=247.53 lat (msec): min=142, max=2143, avg=934.09, stdev=247.57 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 575], 10.00th=[ 667], 20.00th=[ 751], | 30.00th=[ 810], 40.00th=[ 860], 50.00th=[ 919], 60.00th=[ 969], | 70.00th=[ 1028], 80.00th=[ 1116], 90.00th=[ 1250], 95.00th=[ 1334], | 99.00th=[ 1620], 99.50th=[ 1804], 99.90th=[ 2123], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 7, max= 176, per=24.94%, avg=68.07, stdev=28.65, samples=295 iops : min= 1, max= 44, avg=16.57, stdev= 7.21, samples=295 lat (msec) : 250=0.66%, 500=1.95%, 750=17.11%, 1000=46.13%, 2000=33.91% lat (msec) : >=2000=0.23% cpu : usr=0.04%, sys=0.20%, ctx=1696, 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=151328: Thu Jan 1 21:17:43 2026 write: IOPS=17, BW=68.5KiB/s (70.1kB/s)(10.0MiB/149567msec); 0 zone resets slat (usec): min=21, max=14442, avg=165.78, stdev=737.61 clat (msec): min=147, max=2056, avg=933.77, stdev=247.46 lat (msec): min=147, max=2056, avg=933.94, stdev=247.52 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 592], 10.00th=[ 659], 20.00th=[ 743], | 30.00th=[ 810], 40.00th=[ 860], 50.00th=[ 919], 60.00th=[ 978], | 70.00th=[ 1036], 80.00th=[ 1116], 90.00th=[ 1250], 95.00th=[ 1334], | 99.00th=[ 1620], 99.50th=[ 1703], 99.90th=[ 1989], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 7, max= 169, per=25.28%, avg=69.01, stdev=29.57, samples=291 iops : min= 1, max= 42, avg=16.80, stdev= 7.44, samples=291 lat (msec) : 250=1.25%, 500=1.45%, 750=18.28%, 1000=42.77%, 2000=36.17% lat (msec) : >=2000=0.08% cpu : usr=0.04%, sys=0.23%, ctx=1845, 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=151329: Thu Jan 1 21:17:43 2026 write: IOPS=17, BW=68.6KiB/s (70.2kB/s)(10.0MiB/149277msec); 0 zone resets slat (usec): min=21, max=14108, avg=155.87, stdev=609.92 clat (msec): min=110, max=1979, avg=932.53, stdev=252.67 lat (msec): min=110, max=1979, avg=932.69, stdev=252.66 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 584], 10.00th=[ 659], 20.00th=[ 743], | 30.00th=[ 793], 40.00th=[ 860], 50.00th=[ 919], 60.00th=[ 961], | 70.00th=[ 1028], 80.00th=[ 1133], 90.00th=[ 1267], 95.00th=[ 1368], | 99.00th=[ 1636], 99.50th=[ 1787], 99.90th=[ 1938], 99.95th=[ 1955], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 206, per=25.00%, avg=68.24, stdev=29.07, samples=294 iops : min= 1, max= 51, avg=16.61, stdev= 7.33, samples=294 lat (msec) : 250=0.98%, 500=2.03%, 750=17.89%, 1000=45.59%, 2000=33.52% cpu : usr=0.04%, sys=0.18%, ctx=1674, 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=151330: Thu Jan 1 21:17:43 2026 write: IOPS=17, BW=68.5KiB/s (70.1kB/s)(10.0MiB/149505msec); 0 zone resets slat (usec): min=22, max=14803, avg=142.25, stdev=539.60 clat (msec): min=146, max=1951, avg=933.55, stdev=247.90 lat (msec): min=146, max=1951, avg=933.70, stdev=247.91 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 592], 10.00th=[ 651], 20.00th=[ 743], | 30.00th=[ 802], 40.00th=[ 869], 50.00th=[ 919], 60.00th=[ 969], | 70.00th=[ 1028], 80.00th=[ 1116], 90.00th=[ 1250], 95.00th=[ 1368], | 99.00th=[ 1586], 99.50th=[ 1687], 99.90th=[ 1871], 99.95th=[ 1888], | 99.99th=[ 1955] bw ( KiB/s): min= 7, max= 175, per=24.93%, avg=68.07, stdev=27.89, samples=295 iops : min= 1, max= 43, avg=16.56, stdev= 6.99, samples=295 lat (msec) : 250=1.29%, 500=1.64%, 750=18.52%, 1000=44.06%, 2000=34.49% cpu : usr=0.06%, sys=0.20%, ctx=1914, 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=274KiB/s (280kB/s), 68.5KiB/s-68.6KiB/s (70.1kB/s-70.2kB/s), io=40.0MiB (41.9MB), run=149277-149567msec 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=151361: Thu Jan 1 21:19:33 2026 read: IOPS=12, BW=50.0KiB/s (51.2kB/s)(5048KiB/100916msec) slat (usec): min=22, max=62543, avg=13583.04, stdev=7963.56 clat (msec): min=16, max=1061, avg=397.80, stdev=106.44 lat (msec): min=21, max=1069, avg=411.39, stdev=107.48 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 266], 10.00th=[ 288], 20.00th=[ 317], | 30.00th=[ 342], 40.00th=[ 363], 50.00th=[ 380], 60.00th=[ 405], | 70.00th=[ 439], 80.00th=[ 468], 90.00th=[ 527], 95.00th=[ 592], | 99.00th=[ 735], 99.50th=[ 835], 99.90th=[ 944], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 112, per=25.00%, avg=49.50, stdev=22.00, samples=200 iops : min= 1, max= 28, avg=11.87, stdev= 5.54, samples=200 write: IOPS=12, BW=51.4KiB/s (52.7kB/s)(5192KiB/100916msec); 0 zone resets slat (usec): min=20, max=12625, avg=193.77, stdev=626.71 clat (msec): min=157, max=1655, avg=842.91, stdev=242.79 lat (msec): min=157, max=1655, avg=843.11, stdev=242.80 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 493], 10.00th=[ 550], 20.00th=[ 642], | 30.00th=[ 701], 40.00th=[ 760], 50.00th=[ 818], 60.00th=[ 877], | 70.00th=[ 953], 80.00th=[ 1036], 90.00th=[ 1183], 95.00th=[ 1301], | 99.00th=[ 1569], 99.50th=[ 1586], 99.90th=[ 1636], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 7, max= 104, per=24.76%, avg=51.01, stdev=20.51, samples=199 iops : min= 1, max= 26, avg=12.26, stdev= 5.17, samples=199 lat (msec) : 20=0.04%, 50=0.08%, 100=0.16%, 250=1.64%, 500=43.48% lat (msec) : 750=22.42%, 1000=20.31%, 2000=11.88% cpu : usr=0.11%, sys=0.57%, ctx=4769, 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=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=151362: Thu Jan 1 21:19:33 2026 read: IOPS=12, BW=49.2KiB/s (50.3kB/s)(4976KiB/101208msec) slat (usec): min=2933, max=66653, avg=13690.09, stdev=7840.05 clat (msec): min=13, max=826, avg=397.38, stdev=99.24 lat (msec): min=18, max=843, avg=411.08, stdev=100.61 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 271], 10.00th=[ 292], 20.00th=[ 321], | 30.00th=[ 342], 40.00th=[ 363], 50.00th=[ 384], 60.00th=[ 409], | 70.00th=[ 435], 80.00th=[ 468], 90.00th=[ 523], 95.00th=[ 584], | 99.00th=[ 693], 99.50th=[ 718], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 7, max= 119, per=24.72%, avg=48.94, stdev=22.81, samples=199 iops : min= 1, max= 29, avg=11.74, stdev= 5.74, samples=199 write: IOPS=13, BW=52.0KiB/s (53.3kB/s)(5264KiB/101208msec); 0 zone resets slat (usec): min=30, max=17862, avg=210.19, stdev=762.12 clat (msec): min=235, max=1678, avg=839.31, stdev=235.78 lat (msec): min=235, max=1678, avg=839.52, stdev=235.83 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 493], 10.00th=[ 550], 20.00th=[ 642], | 30.00th=[ 709], 40.00th=[ 760], 50.00th=[ 827], 60.00th=[ 877], | 70.00th=[ 936], 80.00th=[ 1036], 90.00th=[ 1150], 95.00th=[ 1267], | 99.00th=[ 1502], 99.50th=[ 1603], 99.90th=[ 1636], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 120, per=24.90%, avg=51.30, stdev=20.43, samples=201 iops : min= 1, max= 30, avg=12.33, stdev= 5.15, samples=201 lat (msec) : 20=0.04%, 50=0.16%, 100=0.16%, 250=1.25%, 500=43.28% lat (msec) : 750=23.40%, 1000=20.04%, 2000=11.68% cpu : usr=0.11%, sys=0.57%, ctx=4583, 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=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=151363: Thu Jan 1 21:19:33 2026 read: IOPS=12, BW=49.2KiB/s (50.4kB/s)(4984KiB/101210msec) slat (usec): min=2747, max=73714, avg=13904.99, stdev=7566.82 clat (msec): min=29, max=829, avg=398.06, stdev=104.05 lat (msec): min=39, max=850, avg=411.97, stdev=105.25 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 262], 10.00th=[ 288], 20.00th=[ 321], | 30.00th=[ 342], 40.00th=[ 363], 50.00th=[ 384], 60.00th=[ 409], | 70.00th=[ 435], 80.00th=[ 472], 90.00th=[ 535], 95.00th=[ 584], | 99.00th=[ 693], 99.50th=[ 735], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 7, max= 111, per=24.59%, avg=48.69, stdev=23.09, samples=201 iops : min= 1, max= 27, avg=11.68, stdev= 5.81, samples=201 write: IOPS=12, BW=51.9KiB/s (53.2kB/s)(5256KiB/101210msec); 0 zone resets slat (usec): min=31, max=20922, avg=206.80, stdev=761.39 clat (msec): min=129, max=1583, avg=838.89, stdev=235.67 lat (msec): min=132, max=1583, avg=839.09, stdev=235.69 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 489], 10.00th=[ 558], 20.00th=[ 642], | 30.00th=[ 709], 40.00th=[ 760], 50.00th=[ 818], 60.00th=[ 869], | 70.00th=[ 936], 80.00th=[ 1028], 90.00th=[ 1183], 95.00th=[ 1284], | 99.00th=[ 1435], 99.50th=[ 1502], 99.90th=[ 1569], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 7, max= 120, per=24.79%, avg=51.07, stdev=20.58, samples=201 iops : min= 1, max= 30, avg=12.27, stdev= 5.15, samples=201 lat (msec) : 50=0.16%, 100=0.27%, 250=1.68%, 500=42.27%, 750=23.67% lat (msec) : 1000=20.51%, 2000=11.45% cpu : usr=0.11%, sys=0.60%, ctx=4304, 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=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=151364: Thu Jan 1 21:19:33 2026 read: IOPS=12, BW=50.1KiB/s (51.3kB/s)(5060KiB/100918msec) slat (usec): min=2753, max=79711, avg=13799.00, stdev=8349.88 clat (msec): min=23, max=1049, avg=398.66, stdev=107.14 lat (msec): min=34, max=1068, avg=412.47, stdev=108.59 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 262], 10.00th=[ 284], 20.00th=[ 313], | 30.00th=[ 342], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 409], | 70.00th=[ 439], 80.00th=[ 468], 90.00th=[ 535], 95.00th=[ 600], | 99.00th=[ 726], 99.50th=[ 768], 99.90th=[ 953], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 111, per=25.36%, avg=50.21, stdev=20.99, samples=198 iops : min= 1, max= 27, avg=12.06, stdev= 5.30, samples=198 write: IOPS=12, BW=51.3KiB/s (52.6kB/s)(5180KiB/100918msec); 0 zone resets slat (usec): min=33, max=14130, avg=242.02, stdev=852.22 clat (msec): min=166, max=1636, avg=841.39, stdev=235.42 lat (msec): min=166, max=1636, avg=841.64, stdev=235.46 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 502], 10.00th=[ 558], 20.00th=[ 651], | 30.00th=[ 709], 40.00th=[ 776], 50.00th=[ 818], 60.00th=[ 869], | 70.00th=[ 936], 80.00th=[ 1020], 90.00th=[ 1150], 95.00th=[ 1284], | 99.00th=[ 1519], 99.50th=[ 1586], 99.90th=[ 1620], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 7, max= 103, per=24.54%, avg=50.55, stdev=19.34, samples=200 iops : min= 1, max= 25, avg=12.14, stdev= 4.86, samples=200 lat (msec) : 50=0.12%, 100=0.23%, 250=1.84%, 500=43.05%, 750=22.07% lat (msec) : 1000=21.45%, 2000=11.25% cpu : usr=0.09%, sys=0.60%, ctx=4874, 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=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=198KiB/s (203kB/s), 49.2KiB/s-50.1KiB/s (50.3kB/s-51.3kB/s), io=19.6MiB (20.5MB), run=100916-101210msec WRITE: bw=206KiB/s (211kB/s), 51.3KiB/s-52.0KiB/s (52.6kB/s-53.3kB/s), io=20.4MiB (21.4MB), run=100916-101210msec 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=151383: Thu Jan 1 21:19:42 2026 read: IOPS=3, BW=137MiB/s (144MB/s)(40.0MiB/291msec) slat (nsec): min=15408k, max=15408k, avg=15407674.00, stdev= 0.00 clat (nsec): min=263875k, max=263875k, avg=263874719.00, stdev= 0.00 lat (nsec): min=279287k, max=279287k, avg=279287186.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 264], 10.00th=[ 264], 20.00th=[ 264], | 30.00th=[ 264], 40.00th=[ 264], 50.00th=[ 264], 60.00th=[ 264], | 70.00th=[ 264], 80.00th=[ 264], 90.00th=[ 264], 95.00th=[ 264], | 99.00th=[ 264], 99.50th=[ 264], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.45%, ctx=4, 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=137MiB/s (144MB/s), 137MiB/s-137MiB/s (144MB/s-144MB/s), io=40.0MiB (41.9MB), run=291-291msec 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