== sanity test 398c: run fio to test AIO ================= 04:56:49 (1773737809) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.465131 s, 90.2 MB/s osc.lustre-OST0000-osc-ffff959ad1baf800.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=149913: Tue Mar 17 05:00:40 2026 write: IOPS=11, BW=46.5KiB/s (47.6kB/s)(10.0MiB/220330msec); 0 zone resets slat (usec): min=36, max=40290, avg=307.06, stdev=1474.27 clat (msec): min=452, max=3678, avg=1374.75, stdev=545.86 lat (msec): min=452, max=3678, avg=1375.06, stdev=545.89 clat percentiles (msec): | 1.00th=[ 518], 5.00th=[ 760], 10.00th=[ 852], 20.00th=[ 936], | 30.00th=[ 1011], 40.00th=[ 1083], 50.00th=[ 1234], 60.00th=[ 1401], | 70.00th=[ 1569], 80.00th=[ 1787], 90.00th=[ 2072], 95.00th=[ 2467], | 99.00th=[ 3306], 99.50th=[ 3406], 99.90th=[ 3641], 99.95th=[ 3675], | 99.99th=[ 3675] bw ( KiB/s): min= 7, max= 128, per=28.20%, avg=52.18, stdev=32.86, samples=385 iops : min= 1, max= 32, avg=12.55, stdev= 8.24, samples=385 lat (msec) : 500=0.31%, 750=4.30%, 1000=24.38%, 2000=59.41%, >=2000=11.60% cpu : usr=0.03%, sys=0.20%, ctx=1927, 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=149914: Tue Mar 17 05:00:40 2026 write: IOPS=11, BW=46.5KiB/s (47.6kB/s)(10.0MiB/220114msec); 0 zone resets slat (usec): min=36, max=31319, avg=246.55, stdev=1199.93 clat (msec): min=264, max=3379, avg=1374.81, stdev=546.13 lat (msec): min=264, max=3379, avg=1375.06, stdev=546.14 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 735], 10.00th=[ 827], 20.00th=[ 944], | 30.00th=[ 1020], 40.00th=[ 1099], 50.00th=[ 1217], 60.00th=[ 1385], | 70.00th=[ 1586], 80.00th=[ 1770], 90.00th=[ 2089], 95.00th=[ 2500], | 99.00th=[ 3138], 99.50th=[ 3239], 99.90th=[ 3373], 99.95th=[ 3373], | 99.99th=[ 3373] bw ( KiB/s): min= 7, max= 128, per=26.15%, avg=48.38, stdev=29.44, samples=415 iops : min= 1, max= 32, avg=11.60, stdev= 7.39, samples=415 lat (msec) : 500=0.43%, 750=5.16%, 1000=22.38%, 2000=59.96%, >=2000=12.07% cpu : usr=0.03%, sys=0.21%, ctx=1740, 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=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=149915: Tue Mar 17 05:00:40 2026 write: IOPS=11, BW=46.5KiB/s (47.6kB/s)(10.0MiB/220327msec); 0 zone resets slat (usec): min=36, max=37162, avg=249.39, stdev=1117.88 clat (msec): min=476, max=3592, avg=1374.81, stdev=546.07 lat (msec): min=476, max=3593, avg=1375.06, stdev=546.12 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 768], 10.00th=[ 844], 20.00th=[ 936], | 30.00th=[ 1003], 40.00th=[ 1099], 50.00th=[ 1217], 60.00th=[ 1401], | 70.00th=[ 1569], 80.00th=[ 1770], 90.00th=[ 2106], 95.00th=[ 2500], | 99.00th=[ 3104], 99.50th=[ 3306], 99.90th=[ 3507], 99.95th=[ 3507], | 99.99th=[ 3608] bw ( KiB/s): min= 7, max= 128, per=26.15%, avg=48.39, stdev=27.68, samples=415 iops : min= 1, max= 32, avg=11.60, stdev= 6.96, samples=415 lat (msec) : 500=0.82%, 750=3.79%, 1000=24.69%, 2000=58.55%, >=2000=12.15% cpu : usr=0.03%, sys=0.19%, ctx=1571, 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=149916: Tue Mar 17 05:00:40 2026 write: IOPS=11, BW=46.5KiB/s (47.6kB/s)(10.0MiB/220176msec); 0 zone resets slat (usec): min=36, max=20370, avg=245.00, stdev=889.36 clat (msec): min=332, max=3498, avg=1374.75, stdev=543.15 lat (msec): min=332, max=3498, avg=1374.99, stdev=543.15 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 751], 10.00th=[ 835], 20.00th=[ 927], | 30.00th=[ 1011], 40.00th=[ 1099], 50.00th=[ 1234], 60.00th=[ 1401], | 70.00th=[ 1586], 80.00th=[ 1787], 90.00th=[ 2072], 95.00th=[ 2500], | 99.00th=[ 3171], 99.50th=[ 3306], 99.90th=[ 3406], 99.95th=[ 3507], | 99.99th=[ 3507] bw ( KiB/s): min= 7, max= 128, per=25.83%, avg=47.79, stdev=28.30, samples=420 iops : min= 1, max= 32, avg=11.45, stdev= 7.12, samples=420 lat (msec) : 500=0.39%, 750=4.65%, 1000=23.71%, 2000=59.49%, >=2000=11.76% cpu : usr=0.02%, sys=0.19%, ctx=1959, 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=186KiB/s (190kB/s), 46.5KiB/s-46.5KiB/s (47.6kB/s-47.6kB/s), io=40.0MiB (41.9MB), run=220114-220330msec 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=149959: Tue Mar 17 05:02:52 2026 read: IOPS=10, BW=41.9KiB/s (42.9kB/s)(5048KiB/120587msec) slat (usec): min=3122, max=65444, avg=15869.05, stdev=8960.75 clat (msec): min=11, max=1427, avg=476.88, stdev=167.55 lat (msec): min=18, max=1435, avg=492.76, stdev=169.58 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 275], 10.00th=[ 313], 20.00th=[ 359], | 30.00th=[ 393], 40.00th=[ 418], 50.00th=[ 451], 60.00th=[ 481], | 70.00th=[ 523], 80.00th=[ 567], 90.00th=[ 667], 95.00th=[ 785], | 99.00th=[ 1133], 99.50th=[ 1234], 99.90th=[ 1401], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 7, max= 111, per=25.38%, avg=41.89, stdev=20.43, samples=235 iops : min= 1, max= 27, avg= 9.98, stdev= 5.17, samples=235 write: IOPS=10, BW=43.1KiB/s (44.1kB/s)(5192KiB/120587msec); 0 zone resets slat (usec): min=42, max=11926, avg=321.39, stdev=869.82 clat (msec): min=258, max=2479, avg=1002.99, stdev=337.86 lat (msec): min=258, max=2480, avg=1003.31, stdev=337.90 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 523], 10.00th=[ 617], 20.00th=[ 726], | 30.00th=[ 810], 40.00th=[ 894], 50.00th=[ 961], 60.00th=[ 1053], | 70.00th=[ 1150], 80.00th=[ 1250], 90.00th=[ 1418], 95.00th=[ 1586], | 99.00th=[ 2232], 99.50th=[ 2366], 99.90th=[ 2467], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 96, per=25.11%, avg=43.19, stdev=19.41, samples=235 iops : min= 1, max= 24, avg=10.31, stdev= 4.90, samples=235 lat (msec) : 20=0.04%, 50=0.04%, 100=0.20%, 250=1.33%, 500=32.73% lat (msec) : 750=23.09%, 1000=18.63%, 2000=23.24%, >=2000=0.70% cpu : usr=0.09%, sys=0.70%, ctx=4734, 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=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=149960: Tue Mar 17 05:02:52 2026 read: IOPS=10, BW=41.2KiB/s (42.2kB/s)(4976KiB/120734msec) slat (usec): min=64, max=58543, avg=15769.71, stdev=8764.93 clat (msec): min=26, max=1489, avg=478.19, stdev=165.88 lat (msec): min=32, max=1510, avg=493.97, stdev=167.78 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 284], 10.00th=[ 317], 20.00th=[ 368], | 30.00th=[ 393], 40.00th=[ 418], 50.00th=[ 451], 60.00th=[ 481], | 70.00th=[ 518], 80.00th=[ 567], 90.00th=[ 667], 95.00th=[ 768], | 99.00th=[ 1133], 99.50th=[ 1234], 99.90th=[ 1401], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 7, max= 103, per=25.08%, avg=41.39, stdev=20.37, samples=234 iops : min= 1, max= 25, avg= 9.87, stdev= 5.13, samples=234 write: IOPS=10, BW=43.6KiB/s (44.6kB/s)(5264KiB/120734msec); 0 zone resets slat (usec): min=39, max=12901, avg=254.19, stdev=546.72 clat (msec): min=167, max=2480, avg=999.50, stdev=354.51 lat (msec): min=167, max=2480, avg=999.76, stdev=354.54 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 498], 10.00th=[ 592], 20.00th=[ 718], | 30.00th=[ 810], 40.00th=[ 894], 50.00th=[ 961], 60.00th=[ 1045], | 70.00th=[ 1150], 80.00th=[ 1267], 90.00th=[ 1418], 95.00th=[ 1620], | 99.00th=[ 2265], 99.50th=[ 2366], 99.90th=[ 2433], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 118, per=25.20%, avg=43.34, stdev=21.62, samples=237 iops : min= 1, max= 29, avg=10.35, stdev= 5.47, samples=237 lat (msec) : 50=0.04%, 100=0.16%, 250=1.48%, 500=33.12%, 750=22.70% lat (msec) : 1000=18.55%, 2000=23.16%, >=2000=0.78% cpu : usr=0.08%, sys=0.58%, ctx=4288, majf=0, minf=16 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=149961: Tue Mar 17 05:02:52 2026 read: IOPS=10, BW=41.2KiB/s (42.2kB/s)(4984KiB/120947msec) slat (usec): min=2616, max=67941, avg=15916.30, stdev=8999.13 clat (msec): min=5, max=1183, avg=471.17, stdev=159.27 lat (msec): min=19, max=1210, avg=487.09, stdev=161.44 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 271], 10.00th=[ 309], 20.00th=[ 363], | 30.00th=[ 393], 40.00th=[ 414], 50.00th=[ 443], 60.00th=[ 477], | 70.00th=[ 510], 80.00th=[ 558], 90.00th=[ 667], 95.00th=[ 793], | 99.00th=[ 1070], 99.50th=[ 1133], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 7, max= 118, per=24.85%, avg=41.00, stdev=22.25, samples=238 iops : min= 1, max= 29, avg= 9.76, stdev= 5.58, samples=238 write: IOPS=10, BW=43.5KiB/s (44.5kB/s)(5256KiB/120947msec); 0 zone resets slat (usec): min=51, max=22310, avg=320.27, stdev=1198.40 clat (msec): min=107, max=2479, avg=1007.64, stdev=342.05 lat (msec): min=107, max=2479, avg=1007.96, stdev=342.03 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 550], 10.00th=[ 617], 20.00th=[ 735], | 30.00th=[ 827], 40.00th=[ 894], 50.00th=[ 961], 60.00th=[ 1045], | 70.00th=[ 1150], 80.00th=[ 1267], 90.00th=[ 1435], 95.00th=[ 1620], | 99.00th=[ 2232], 99.50th=[ 2400], 99.90th=[ 2433], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 111, per=25.09%, avg=43.16, stdev=20.56, samples=237 iops : min= 1, max= 27, avg=10.30, stdev= 5.19, samples=237 lat (msec) : 10=0.04%, 20=0.04%, 50=0.04%, 100=0.08%, 250=1.52% lat (msec) : 500=33.36%, 750=21.76%, 1000=19.22%, 2000=23.28%, >=2000=0.66% cpu : usr=0.10%, sys=0.66%, ctx=4875, 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=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=149962: Tue Mar 17 05:02:52 2026 read: IOPS=10, BW=41.8KiB/s (42.8kB/s)(5060KiB/120950msec) slat (usec): min=2176, max=54043, avg=15589.30, stdev=8676.04 clat (msec): min=17, max=1596, avg=473.68, stdev=164.29 lat (msec): min=35, max=1605, avg=489.28, stdev=166.41 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 275], 10.00th=[ 313], 20.00th=[ 363], | 30.00th=[ 393], 40.00th=[ 418], 50.00th=[ 447], 60.00th=[ 481], | 70.00th=[ 514], 80.00th=[ 567], 90.00th=[ 659], 95.00th=[ 768], | 99.00th=[ 1083], 99.50th=[ 1250], 99.90th=[ 1569], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 7, max= 120, per=25.61%, avg=42.25, stdev=20.93, samples=234 iops : min= 1, max= 30, avg=10.07, stdev= 5.30, samples=234 write: IOPS=10, BW=42.8KiB/s (43.9kB/s)(5180KiB/120950msec); 0 zone resets slat (usec): min=53, max=17920, avg=302.34, stdev=893.66 clat (msec): min=193, max=2517, avg=1012.54, stdev=352.08 lat (msec): min=194, max=2517, avg=1012.85, stdev=352.08 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 514], 10.00th=[ 609], 20.00th=[ 726], | 30.00th=[ 827], 40.00th=[ 902], 50.00th=[ 969], 60.00th=[ 1045], | 70.00th=[ 1150], 80.00th=[ 1267], 90.00th=[ 1452], 95.00th=[ 1636], | 99.00th=[ 2140], 99.50th=[ 2400], 99.90th=[ 2467], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 119, per=24.77%, avg=42.60, stdev=19.76, samples=237 iops : min= 1, max= 29, avg=10.16, stdev= 5.00, samples=237 lat (msec) : 20=0.04%, 50=0.08%, 100=0.16%, 250=1.17%, 500=33.59% lat (msec) : 750=22.58%, 1000=18.20%, 2000=23.40%, >=2000=0.78% cpu : usr=0.09%, sys=0.64%, ctx=4759, 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=166KiB/s (170kB/s), 41.2KiB/s-41.9KiB/s (42.2kB/s-42.9kB/s), io=19.6MiB (20.5MB), run=120587-120950msec WRITE: bw=173KiB/s (177kB/s), 42.8KiB/s-43.6KiB/s (43.9kB/s-44.6kB/s), io=20.4MiB (21.4MB), run=120587-120950msec 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=149996: Tue Mar 17 05:03:08 2026 read: IOPS=1, BW=46.7MiB/s (48.0MB/s)(40.0MiB/856msec) slat (nsec): min=41662k, max=41662k, avg=41662177.00, stdev= 0.00 clat (nsec): min=753737k, max=753737k, avg=753737446.00, stdev= 0.00 lat (nsec): min=795405k, max=795405k, avg=795404856.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 751], 5.00th=[ 751], 10.00th=[ 751], 20.00th=[ 751], | 30.00th=[ 751], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=1.17%, ctx=5, 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=46.7MiB/s (48.0MB/s), 46.7MiB/s-46.7MiB/s (48.0MB/s-48.0MB/s), io=40.0MiB (41.9MB), run=856-856msec 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