== sanity test 398c: run fio to test AIO ================= 03:11:12 (1768551072) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.670492 s, 62.6 MB/s osc.lustre-OST0000-osc-ffff8c7ad15ce000.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=149740: Fri Jan 16 03:14:13 2026 write: IOPS=15, BW=60.7KiB/s (62.1kB/s)(10.0MiB/168754msec); 0 zone resets slat (usec): min=21, max=28067, avg=177.49, stdev=944.67 clat (msec): min=218, max=1986, avg=1053.26, stdev=281.02 lat (msec): min=218, max=1986, avg=1053.44, stdev=281.05 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 659], 10.00th=[ 735], 20.00th=[ 818], | 30.00th=[ 902], 40.00th=[ 961], 50.00th=[ 1028], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1435], 95.00th=[ 1569], | 99.00th=[ 1720], 99.50th=[ 1888], 99.90th=[ 1955], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 135, per=25.39%, avg=61.45, stdev=26.72, samples=327 iops : min= 1, max= 33, avg=14.88, stdev= 6.71, samples=327 lat (msec) : 250=0.62%, 500=1.80%, 750=9.45%, 1000=34.18%, 2000=53.95% cpu : usr=0.03%, sys=0.22%, ctx=1785, 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=149741: Fri Jan 16 03:14:13 2026 write: IOPS=15, BW=60.8KiB/s (62.3kB/s)(10.0MiB/168285msec); 0 zone resets slat (usec): min=23, max=10785, avg=149.99, stdev=532.80 clat (msec): min=211, max=1973, avg=1051.21, stdev=278.64 lat (msec): min=211, max=1974, avg=1051.37, stdev=278.63 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 609], 10.00th=[ 735], 20.00th=[ 818], | 30.00th=[ 894], 40.00th=[ 961], 50.00th=[ 1036], 60.00th=[ 1116], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1435], 95.00th=[ 1536], | 99.00th=[ 1720], 99.50th=[ 1821], 99.90th=[ 1921], 99.95th=[ 1921], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 128, per=25.79%, avg=62.42, stdev=29.96, samples=322 iops : min= 1, max= 32, avg=15.13, stdev= 7.49, samples=322 lat (msec) : 250=0.62%, 500=1.33%, 750=10.43%, 1000=33.44%, 2000=54.18% cpu : usr=0.04%, sys=0.16%, ctx=1435, 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=149742: Fri Jan 16 03:14:13 2026 write: IOPS=15, BW=60.7KiB/s (62.1kB/s)(10.0MiB/168809msec); 0 zone resets slat (usec): min=21, max=21684, avg=193.03, stdev=919.94 clat (msec): min=388, max=1962, avg=1053.45, stdev=276.98 lat (msec): min=389, max=1962, avg=1053.64, stdev=276.96 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 625], 10.00th=[ 726], 20.00th=[ 827], | 30.00th=[ 894], 40.00th=[ 961], 50.00th=[ 1028], 60.00th=[ 1116], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1435], 95.00th=[ 1536], | 99.00th=[ 1787], 99.50th=[ 1804], 99.90th=[ 1921], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 7, max= 248, per=25.45%, avg=61.59, stdev=34.05, samples=327 iops : min= 1, max= 62, avg=14.91, stdev= 8.55, samples=327 lat (msec) : 500=2.54%, 750=9.61%, 1000=34.26%, 2000=53.59% cpu : usr=0.04%, sys=0.19%, ctx=1994, 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=149743: Fri Jan 16 03:14:13 2026 write: IOPS=15, BW=60.7KiB/s (62.1kB/s)(10.0MiB/168806msec); 0 zone resets slat (usec): min=22, max=17383, avg=164.53, stdev=609.38 clat (msec): min=332, max=2031, avg=1053.56, stdev=277.06 lat (msec): min=332, max=2031, avg=1053.72, stdev=277.04 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 634], 10.00th=[ 726], 20.00th=[ 827], | 30.00th=[ 902], 40.00th=[ 961], 50.00th=[ 1028], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1418], 95.00th=[ 1552], | 99.00th=[ 1703], 99.50th=[ 1821], 99.90th=[ 1972], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 200, per=24.96%, avg=60.40, stdev=26.69, samples=333 iops : min= 1, max= 50, avg=14.62, stdev= 6.71, samples=333 lat (msec) : 500=1.95%, 750=9.88%, 1000=34.77%, 2000=53.32%, >=2000=0.08% cpu : usr=0.04%, sys=0.19%, ctx=1797, 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=243KiB/s (248kB/s), 60.7KiB/s-60.8KiB/s (62.1kB/s-62.3kB/s), io=40.0MiB (41.9MB), run=168285-168809msec 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=149778: Fri Jan 16 03:16:06 2026 read: IOPS=12, BW=48.7KiB/s (49.9kB/s)(5048KiB/103615msec) slat (usec): min=2112, max=80618, avg=13535.73, stdev=8268.11 clat (msec): min=11, max=876, avg=405.91, stdev=126.67 lat (msec): min=21, max=881, avg=419.45, stdev=128.13 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 230], 10.00th=[ 266], 20.00th=[ 305], | 30.00th=[ 334], 40.00th=[ 363], 50.00th=[ 393], 60.00th=[ 422], | 70.00th=[ 460], 80.00th=[ 502], 90.00th=[ 575], 95.00th=[ 634], | 99.00th=[ 726], 99.50th=[ 743], 99.90th=[ 869], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 7, max= 136, per=25.00%, avg=48.26, stdev=24.13, samples=205 iops : min= 1, max= 34, avg=11.58, stdev= 6.08, samples=205 write: IOPS=12, BW=50.1KiB/s (51.3kB/s)(5192KiB/103615msec); 0 zone resets slat (usec): min=26, max=16585, avg=279.58, stdev=1079.77 clat (msec): min=263, max=1666, avg=866.18, stdev=261.98 lat (msec): min=264, max=1667, avg=866.46, stdev=262.01 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 493], 10.00th=[ 550], 20.00th=[ 642], | 30.00th=[ 701], 40.00th=[ 776], 50.00th=[ 835], 60.00th=[ 919], | 70.00th=[ 995], 80.00th=[ 1083], 90.00th=[ 1200], 95.00th=[ 1351], | 99.00th=[ 1586], 99.50th=[ 1636], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7, max= 120, per=24.69%, avg=49.63, stdev=22.33, samples=205 iops : min= 1, max= 30, avg=11.92, stdev= 5.59, samples=205 lat (msec) : 20=0.12%, 50=0.23%, 100=0.23%, 250=3.20%, 500=38.20% lat (msec) : 750=26.02%, 1000=16.91%, 2000=15.08% cpu : usr=0.08%, sys=0.63%, ctx=4323, 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=149779: Fri Jan 16 03:16:06 2026 read: IOPS=12, BW=48.0KiB/s (49.2kB/s)(4976KiB/103608msec) slat (usec): min=1987, max=72767, avg=14102.30, stdev=8750.64 clat (msec): min=20, max=874, avg=408.00, stdev=119.09 lat (msec): min=29, max=886, avg=422.11, stdev=120.77 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 241], 10.00th=[ 271], 20.00th=[ 313], | 30.00th=[ 338], 40.00th=[ 368], 50.00th=[ 397], 60.00th=[ 426], | 70.00th=[ 464], 80.00th=[ 502], 90.00th=[ 567], 95.00th=[ 625], | 99.00th=[ 718], 99.50th=[ 751], 99.90th=[ 818], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 7, max= 144, per=24.98%, avg=48.21, stdev=22.98, samples=202 iops : min= 1, max= 36, avg=11.56, stdev= 5.82, samples=202 write: IOPS=12, BW=50.8KiB/s (52.0kB/s)(5264KiB/103608msec); 0 zone resets slat (usec): min=24, max=12433, avg=226.89, stdev=726.49 clat (msec): min=265, max=1648, avg=858.61, stdev=256.63 lat (msec): min=265, max=1649, avg=858.83, stdev=256.66 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 493], 10.00th=[ 542], 20.00th=[ 642], | 30.00th=[ 701], 40.00th=[ 768], 50.00th=[ 835], 60.00th=[ 911], | 70.00th=[ 986], 80.00th=[ 1070], 90.00th=[ 1200], 95.00th=[ 1301], | 99.00th=[ 1552], 99.50th=[ 1603], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 7, max= 112, per=25.12%, avg=50.50, stdev=21.49, samples=204 iops : min= 1, max= 28, avg=12.14, stdev= 5.41, samples=204 lat (msec) : 50=0.12%, 100=0.16%, 250=3.05%, 500=38.05%, 750=26.56% lat (msec) : 1000=17.30%, 2000=14.77% cpu : usr=0.10%, sys=0.60%, ctx=4314, 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=149780: Fri Jan 16 03:16:06 2026 read: IOPS=12, BW=48.3KiB/s (49.4kB/s)(4984KiB/103271msec) slat (usec): min=55, max=59851, avg=13926.51, stdev=8415.61 clat (msec): min=15, max=878, avg=403.11, stdev=126.34 lat (msec): min=15, max=885, avg=417.04, stdev=128.22 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 222], 10.00th=[ 264], 20.00th=[ 309], | 30.00th=[ 338], 40.00th=[ 363], 50.00th=[ 388], 60.00th=[ 418], | 70.00th=[ 460], 80.00th=[ 498], 90.00th=[ 575], 95.00th=[ 634], | 99.00th=[ 726], 99.50th=[ 743], 99.90th=[ 869], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 7, max= 136, per=24.87%, avg=48.00, stdev=24.69, samples=204 iops : min= 1, max= 34, avg=11.51, stdev= 6.22, samples=204 write: IOPS=12, BW=50.9KiB/s (52.1kB/s)(5256KiB/103271msec); 0 zone resets slat (usec): min=29, max=22604, avg=238.09, stdev=982.10 clat (msec): min=136, max=1685, avg=860.95, stdev=264.19 lat (msec): min=137, max=1685, avg=861.19, stdev=264.26 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 489], 10.00th=[ 542], 20.00th=[ 642], | 30.00th=[ 709], 40.00th=[ 768], 50.00th=[ 835], 60.00th=[ 894], | 70.00th=[ 978], 80.00th=[ 1070], 90.00th=[ 1200], 95.00th=[ 1368], | 99.00th=[ 1569], 99.50th=[ 1620], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 152, per=24.83%, avg=49.90, stdev=22.12, samples=205 iops : min= 1, max= 38, avg=12.00, stdev= 5.57, samples=205 lat (msec) : 20=0.12%, 50=0.31%, 100=0.39%, 250=3.36%, 500=37.97% lat (msec) : 750=25.35%, 1000=18.32%, 2000=14.18% cpu : usr=0.13%, sys=0.65%, ctx=4317, 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=149781: Fri Jan 16 03:16:06 2026 read: IOPS=12, BW=48.9KiB/s (50.0kB/s)(5060KiB/103559msec) slat (msec): min=2, max=509, avg=14.69, stdev=20.71 clat (msec): min=24, max=1336, avg=413.61, stdev=137.67 lat (msec): min=29, max=1350, avg=428.31, stdev=139.96 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 232], 10.00th=[ 266], 20.00th=[ 309], | 30.00th=[ 338], 40.00th=[ 368], 50.00th=[ 397], 60.00th=[ 426], | 70.00th=[ 468], 80.00th=[ 514], 90.00th=[ 600], 95.00th=[ 642], | 99.00th=[ 743], 99.50th=[ 793], 99.90th=[ 1267], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 7, max= 112, per=25.68%, avg=49.56, stdev=22.73, samples=200 iops : min= 1, max= 28, avg=11.91, stdev= 5.70, samples=200 write: IOPS=12, BW=50.0KiB/s (51.2kB/s)(5180KiB/103559msec); 0 zone resets slat (usec): min=26, max=21785, avg=270.13, stdev=1000.76 clat (msec): min=251, max=1683, avg=858.44, stdev=262.73 lat (msec): min=251, max=1685, avg=858.71, stdev=262.71 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 493], 10.00th=[ 542], 20.00th=[ 634], | 30.00th=[ 693], 40.00th=[ 768], 50.00th=[ 827], 60.00th=[ 894], | 70.00th=[ 986], 80.00th=[ 1070], 90.00th=[ 1200], 95.00th=[ 1351], | 99.00th=[ 1569], 99.50th=[ 1620], 99.90th=[ 1670], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 128, per=24.73%, avg=49.72, stdev=21.72, samples=204 iops : min= 1, max= 32, avg=11.95, stdev= 5.45, samples=204 lat (msec) : 50=0.23%, 100=0.31%, 250=3.16%, 500=37.19%, 750=27.46% lat (msec) : 1000=17.07%, 2000=14.57% cpu : usr=0.12%, sys=0.62%, ctx=4554, 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=194KiB/s (198kB/s), 48.0KiB/s-48.9KiB/s (49.2kB/s-50.0kB/s), io=19.6MiB (20.5MB), run=103271-103615msec WRITE: bw=202KiB/s (206kB/s), 50.0KiB/s-50.9KiB/s (51.2kB/s-52.1kB/s), io=20.4MiB (21.4MB), run=103271-103615msec 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=149802: Fri Jan 16 03:16:17 2026 read: IOPS=1, BW=77.4MiB/s (81.1MB/s)(40.0MiB/517msec) slat (nsec): min=30175k, max=30175k, avg=30175109.00, stdev= 0.00 clat (nsec): min=473617k, max=473617k, avg=473617179.00, stdev= 0.00 lat (nsec): min=503797k, max=503797k, avg=503796668.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 472], 10.00th=[ 472], 20.00th=[ 472], | 30.00th=[ 472], 40.00th=[ 472], 50.00th=[ 472], 60.00th=[ 472], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.13%, ctx=13, 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=77.4MiB/s (81.1MB/s), 77.4MiB/s-77.4MiB/s (81.1MB/s-81.1MB/s), io=40.0MiB (41.9MB), run=517-517msec 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