== sanity test 398c: run fio to test AIO ================= 18:14:24 (1781216064) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.703559 s, 59.6 MB/s osc.lustre-OST0000-osc-ffff907e4ed7c000.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=145848: Thu Jun 11 18:17:22 2026 write: IOPS=15, BW=61.8KiB/s (63.3kB/s)(10.0MiB/165710msec); 0 zone resets slat (usec): min=43, max=22791, avg=463.96, stdev=1405.90 clat (msec): min=400, max=2253, avg=1033.93, stdev=254.69 lat (msec): min=400, max=2253, avg=1034.40, stdev=254.75 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 693], 10.00th=[ 760], 20.00th=[ 835], | 30.00th=[ 885], 40.00th=[ 927], 50.00th=[ 986], 60.00th=[ 1053], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1368], 95.00th=[ 1569], | 99.00th=[ 1770], 99.50th=[ 1821], 99.90th=[ 2072], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 128, per=26.19%, avg=64.69, stdev=31.53, samples=311 iops : min= 1, max= 32, avg=15.65, stdev= 7.89, samples=311 lat (msec) : 500=0.12%, 750=8.95%, 1000=42.85%, 2000=47.93%, >=2000=0.16% cpu : usr=0.06%, sys=0.38%, ctx=2145, 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=145849: Thu Jun 11 18:17:22 2026 write: IOPS=15, BW=61.9KiB/s (63.4kB/s)(10.0MiB/165433msec); 0 zone resets slat (usec): min=43, max=22916, avg=458.50, stdev=1366.69 clat (msec): min=162, max=2202, avg=1032.93, stdev=256.69 lat (msec): min=163, max=2203, avg=1033.40, stdev=256.70 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 701], 10.00th=[ 768], 20.00th=[ 835], | 30.00th=[ 877], 40.00th=[ 927], 50.00th=[ 978], 60.00th=[ 1045], | 70.00th=[ 1133], 80.00th=[ 1217], 90.00th=[ 1385], 95.00th=[ 1552], | 99.00th=[ 1770], 99.50th=[ 1888], 99.90th=[ 1989], 99.95th=[ 1989], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 127, per=25.16%, avg=62.15, stdev=31.39, samples=323 iops : min= 1, max= 31, avg=15.01, stdev= 7.87, samples=323 lat (msec) : 250=0.08%, 500=0.62%, 750=7.85%, 1000=43.83%, 2000=47.58% lat (msec) : >=2000=0.04% cpu : usr=0.06%, sys=0.38%, ctx=2059, 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=145850: Thu Jun 11 18:17:22 2026 write: IOPS=15, BW=61.9KiB/s (63.4kB/s)(10.0MiB/165430msec); 0 zone resets slat (usec): min=38, max=23195, avg=483.52, stdev=1507.33 clat (msec): min=183, max=2197, avg=1032.00, stdev=254.91 lat (msec): min=183, max=2197, avg=1032.49, stdev=254.85 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 709], 10.00th=[ 751], 20.00th=[ 835], | 30.00th=[ 885], 40.00th=[ 927], 50.00th=[ 978], 60.00th=[ 1053], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1368], 95.00th=[ 1569], | 99.00th=[ 1787], 99.50th=[ 1838], 99.90th=[ 1955], 99.95th=[ 1955], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 127, per=24.97%, avg=61.67, stdev=27.48, samples=326 iops : min= 1, max= 31, avg=14.88, stdev= 6.89, samples=326 lat (msec) : 250=0.12%, 500=0.23%, 750=9.38%, 1000=43.24%, 2000=46.99% lat (msec) : >=2000=0.04% cpu : usr=0.07%, sys=0.39%, ctx=2272, 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=145851: Thu Jun 11 18:17:22 2026 write: IOPS=15, BW=61.8KiB/s (63.3kB/s)(10.0MiB/165706msec); 0 zone resets slat (usec): min=40, max=26316, avg=416.25, stdev=1230.00 clat (msec): min=224, max=2184, avg=1033.75, stdev=249.23 lat (msec): min=225, max=2185, avg=1034.17, stdev=249.23 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 709], 10.00th=[ 760], 20.00th=[ 835], | 30.00th=[ 885], 40.00th=[ 936], 50.00th=[ 995], 60.00th=[ 1053], | 70.00th=[ 1133], 80.00th=[ 1217], 90.00th=[ 1351], 95.00th=[ 1536], | 99.00th=[ 1770], 99.50th=[ 1854], 99.90th=[ 2123], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 128, per=25.59%, avg=63.21, stdev=29.31, samples=318 iops : min= 1, max= 32, avg=15.27, stdev= 7.35, samples=318 lat (msec) : 250=0.04%, 500=0.04%, 750=8.09%, 1000=43.67%, 2000=48.01% lat (msec) : >=2000=0.16% cpu : usr=0.06%, sys=0.36%, ctx=2063, 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=247KiB/s (253kB/s), 61.8KiB/s-61.9KiB/s (63.3kB/s-63.4kB/s), io=40.0MiB (41.9MB), run=165430-165710msec 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=145884: Thu Jun 11 18:19:18 2026 read: IOPS=12, BW=48.4KiB/s (49.6kB/s)(5048KiB/104232msec) slat (usec): min=3204, max=59547, avg=15940.05, stdev=8287.55 clat (msec): min=21, max=1292, avg=416.64, stdev=121.03 lat (msec): min=29, max=1313, avg=432.59, stdev=122.16 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 264], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 355], 40.00th=[ 380], 50.00th=[ 401], 60.00th=[ 426], | 70.00th=[ 451], 80.00th=[ 493], 90.00th=[ 558], 95.00th=[ 625], | 99.00th=[ 844], 99.50th=[ 944], 99.90th=[ 1150], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 7, max= 167, per=25.18%, avg=48.35, stdev=24.38, samples=204 iops : min= 1, max= 41, avg=11.52, stdev= 6.12, samples=204 write: IOPS=12, BW=49.8KiB/s (51.0kB/s)(5192KiB/104232msec); 0 zone resets slat (usec): min=58, max=17055, avg=467.06, stdev=1189.62 clat (msec): min=319, max=1654, avg=860.67, stdev=227.09 lat (msec): min=319, max=1654, avg=861.14, stdev=227.06 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 510], 10.00th=[ 584], 20.00th=[ 659], | 30.00th=[ 726], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 902], | 70.00th=[ 961], 80.00th=[ 1045], 90.00th=[ 1183], 95.00th=[ 1267], | 99.00th=[ 1452], 99.50th=[ 1603], 99.90th=[ 1636], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 7, max= 111, per=24.86%, avg=49.71, stdev=19.65, samples=204 iops : min= 1, max= 27, avg=11.87, stdev= 4.93, samples=204 lat (msec) : 50=0.12%, 100=0.08%, 250=1.48%, 500=40.74%, 750=23.05% lat (msec) : 1000=21.99%, 2000=12.54% cpu : usr=0.12%, sys=1.00%, ctx=4958, 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=145885: Thu Jun 11 18:19:18 2026 read: IOPS=11, BW=47.9KiB/s (49.0kB/s)(4976KiB/103891msec) slat (usec): min=62, max=63717, avg=15700.38, stdev=8349.14 clat (msec): min=31, max=987, avg=412.56, stdev=116.20 lat (msec): min=43, max=1002, avg=428.27, stdev=117.50 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 264], 10.00th=[ 292], 20.00th=[ 321], | 30.00th=[ 355], 40.00th=[ 376], 50.00th=[ 397], 60.00th=[ 422], | 70.00th=[ 456], 80.00th=[ 493], 90.00th=[ 558], 95.00th=[ 617], | 99.00th=[ 785], 99.50th=[ 852], 99.90th=[ 978], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 126, per=24.69%, avg=47.40, stdev=22.72, samples=205 iops : min= 1, max= 31, avg=11.29, stdev= 5.72, samples=205 write: IOPS=12, BW=50.7KiB/s (51.9kB/s)(5264KiB/103891msec); 0 zone resets slat (usec): min=44, max=15137, avg=472.53, stdev=1146.73 clat (msec): min=206, max=1680, avg=856.92, stdev=235.13 lat (msec): min=206, max=1680, avg=857.39, stdev=235.13 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 506], 10.00th=[ 567], 20.00th=[ 659], | 30.00th=[ 718], 40.00th=[ 785], 50.00th=[ 844], 60.00th=[ 902], | 70.00th=[ 961], 80.00th=[ 1045], 90.00th=[ 1167], 95.00th=[ 1267], | 99.00th=[ 1485], 99.50th=[ 1586], 99.90th=[ 1653], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 103, per=25.07%, avg=50.13, stdev=21.28, samples=205 iops : min= 1, max= 25, avg=11.98, stdev= 5.31, samples=205 lat (msec) : 50=0.12%, 100=0.39%, 250=1.56%, 500=39.57%, 750=23.95% lat (msec) : 1000=21.48%, 2000=12.93% cpu : usr=0.15%, sys=1.02%, ctx=4981, 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=145886: Thu Jun 11 18:19:18 2026 read: IOPS=11, BW=47.8KiB/s (48.9kB/s)(4984KiB/104303msec) slat (usec): min=2951, max=63329, avg=16135.96, stdev=8486.56 clat (msec): min=13, max=982, avg=416.31, stdev=114.47 lat (msec): min=28, max=1019, avg=432.45, stdev=115.87 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 268], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 355], 40.00th=[ 376], 50.00th=[ 401], 60.00th=[ 426], | 70.00th=[ 456], 80.00th=[ 498], 90.00th=[ 575], 95.00th=[ 625], | 99.00th=[ 768], 99.50th=[ 802], 99.90th=[ 852], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 119, per=24.79%, avg=47.60, stdev=22.98, samples=205 iops : min= 1, max= 29, avg=11.34, stdev= 5.77, samples=205 write: IOPS=12, BW=50.4KiB/s (51.6kB/s)(5256KiB/104303msec); 0 zone resets slat (usec): min=49, max=39970, avg=517.38, stdev=1676.26 clat (msec): min=118, max=1674, avg=856.98, stdev=231.06 lat (msec): min=118, max=1677, avg=857.50, stdev=231.17 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 506], 10.00th=[ 575], 20.00th=[ 651], | 30.00th=[ 726], 40.00th=[ 793], 50.00th=[ 852], 60.00th=[ 911], | 70.00th=[ 969], 80.00th=[ 1045], 90.00th=[ 1150], 95.00th=[ 1250], | 99.00th=[ 1469], 99.50th=[ 1586], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 8, max= 95, per=24.75%, avg=49.49, stdev=18.85, samples=207 iops : min= 2, max= 23, avg=11.81, stdev= 4.73, samples=207 lat (msec) : 20=0.04%, 50=0.08%, 100=0.12%, 250=1.48%, 500=39.80% lat (msec) : 750=24.18%, 1000=21.29%, 2000=13.01% cpu : usr=0.14%, sys=0.97%, ctx=4936, 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=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=145887: Thu Jun 11 18:19:18 2026 read: IOPS=12, BW=48.6KiB/s (49.8kB/s)(5060KiB/104056msec) slat (usec): min=2917, max=65777, avg=15765.68, stdev=8500.09 clat (msec): min=38, max=1193, avg=418.28, stdev=118.52 lat (msec): min=44, max=1223, avg=434.06, stdev=119.85 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 264], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 351], 40.00th=[ 376], 50.00th=[ 401], 60.00th=[ 430], | 70.00th=[ 460], 80.00th=[ 502], 90.00th=[ 567], 95.00th=[ 625], | 99.00th=[ 802], 99.50th=[ 852], 99.90th=[ 1053], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 111, per=25.52%, avg=49.00, stdev=20.75, samples=202 iops : min= 1, max= 27, avg=11.69, stdev= 5.21, samples=202 write: IOPS=12, BW=49.8KiB/s (50.0kB/s)(5180KiB/104056msec); 0 zone resets slat (usec): min=53, max=14747, avg=463.12, stdev=1039.48 clat (msec): min=280, max=1724, avg=858.78, stdev=233.77 lat (msec): min=280, max=1724, avg=859.25, stdev=233.76 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 489], 10.00th=[ 567], 20.00th=[ 659], | 30.00th=[ 726], 40.00th=[ 793], 50.00th=[ 852], 60.00th=[ 894], | 70.00th=[ 969], 80.00th=[ 1045], 90.00th=[ 1183], 95.00th=[ 1267], | 99.00th=[ 1519], 99.50th=[ 1569], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 8, max= 111, per=24.53%, avg=49.06, stdev=20.39, samples=206 iops : min= 2, max= 27, avg=11.70, stdev= 5.12, samples=206 lat (msec) : 50=0.12%, 100=0.08%, 250=1.48%, 500=40.66%, 750=22.70% lat (msec) : 1000=22.34%, 2000=12.62% cpu : usr=0.13%, sys=0.96%, 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=192KiB/s (197kB/s), 47.8KiB/s-48.6KiB/s (48.9kB/s-49.8kB/s), io=19.6MiB (20.5MB), run=103891-104303msec WRITE: bw=200KiB/s (205kB/s), 49.8KiB/s-50.7KiB/s (50.0kB/s-51.9kB/s), io=20.4MiB (21.4MB), run=103891-104303msec 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=145907: Thu Jun 11 18:19:30 2026 read: IOPS=1, BW=65.7MiB/s (68.9MB/s)(40.0MiB/609msec) slat (nsec): min=42922k, max=42922k, avg=42921589.00, stdev= 0.00 clat (nsec): min=538776k, max=538776k, avg=538776360.00, stdev= 0.00 lat (nsec): min=581703k, max=581703k, avg=581703113.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.30%, ctx=24, 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=65.7MiB/s (68.9MB/s), 65.7MiB/s-65.7MiB/s (68.9MB/s-68.9MB/s), io=40.0MiB (41.9MB), run=609-609msec 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