== sanity test 398c: run fio to test AIO ================= 12:01:39 (1787846499) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.710883 s, 59.0 MB/s osc.lustre-OST0000-osc-ffff8e88504ee000.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=144716: Thu Aug 27 12:04:33 2026 write: IOPS=15, BW=63.5KiB/s (65.0kB/s)(10.0MiB/161295msec); 0 zone resets slat (usec): min=23, max=32484, avg=317.66, stdev=1403.35 clat (msec): min=78, max=2149, avg=1006.25, stdev=314.68 lat (msec): min=79, max=2149, avg=1006.57, stdev=314.73 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 617], 10.00th=[ 676], 20.00th=[ 760], | 30.00th=[ 827], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1020], | 70.00th=[ 1116], 80.00th=[ 1234], 90.00th=[ 1435], 95.00th=[ 1620], | 99.00th=[ 1938], 99.50th=[ 2056], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 230, per=25.25%, avg=63.88, stdev=30.12, samples=315 iops : min= 1, max= 57, avg=15.45, stdev= 7.55, samples=315 lat (msec) : 100=0.08%, 250=0.35%, 500=2.38%, 750=15.70%, 1000=38.32% lat (msec) : 2000=42.58%, >=2000=0.59% cpu : usr=0.07%, sys=0.29%, ctx=1874, majf=0, minf=8 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=144717: Thu Aug 27 12:04:33 2026 write: IOPS=15, BW=63.5KiB/s (65.0kB/s)(10.0MiB/161294msec); 0 zone resets slat (usec): min=22, max=23806, avg=312.13, stdev=1307.28 clat (msec): min=195, max=2285, avg=1007.07, stdev=317.70 lat (msec): min=195, max=2285, avg=1007.39, stdev=317.77 clat percentiles (msec): | 1.00th=[ 266], 5.00th=[ 600], 10.00th=[ 676], 20.00th=[ 760], | 30.00th=[ 827], 40.00th=[ 894], 50.00th=[ 944], 60.00th=[ 1020], | 70.00th=[ 1099], 80.00th=[ 1234], 90.00th=[ 1435], 95.00th=[ 1636], | 99.00th=[ 2005], 99.50th=[ 2165], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 253, per=25.24%, avg=63.87, stdev=30.93, samples=315 iops : min= 1, max= 63, avg=15.45, stdev= 7.76, samples=315 lat (msec) : 250=0.62%, 500=1.41%, 750=16.99%, 1000=38.12%, 2000=41.84% lat (msec) : >=2000=1.02% cpu : usr=0.07%, sys=0.28%, ctx=1826, 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=144718: Thu Aug 27 12:04:33 2026 write: IOPS=15, BW=63.6KiB/s (65.1kB/s)(10.0MiB/161098msec); 0 zone resets slat (usec): min=22, max=33395, avg=261.09, stdev=1179.14 clat (msec): min=114, max=2214, avg=1005.12, stdev=311.06 lat (msec): min=114, max=2214, avg=1005.39, stdev=311.06 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 617], 10.00th=[ 684], 20.00th=[ 760], | 30.00th=[ 835], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1011], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1452], 95.00th=[ 1620], | 99.00th=[ 1955], 99.50th=[ 1989], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 253, per=25.91%, avg=65.54, stdev=34.25, samples=307 iops : min= 1, max= 63, avg=15.87, stdev= 8.58, samples=307 lat (msec) : 250=0.08%, 500=2.77%, 750=15.62%, 1000=39.22%, 2000=41.88% lat (msec) : >=2000=0.43% cpu : usr=0.07%, sys=0.26%, ctx=1561, majf=0, minf=8 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=144719: Thu Aug 27 12:04:33 2026 write: IOPS=15, BW=63.5KiB/s (65.0kB/s)(10.0MiB/161294msec); 0 zone resets slat (usec): min=23, max=20508, avg=260.78, stdev=994.29 clat (msec): min=129, max=2215, avg=1006.47, stdev=308.26 lat (msec): min=129, max=2215, avg=1006.73, stdev=308.28 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 600], 10.00th=[ 684], 20.00th=[ 760], | 30.00th=[ 835], 40.00th=[ 902], 50.00th=[ 961], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1217], 90.00th=[ 1418], 95.00th=[ 1636], | 99.00th=[ 1871], 99.50th=[ 1955], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 253, per=25.25%, avg=63.88, stdev=30.42, samples=315 iops : min= 1, max= 63, avg=15.45, stdev= 7.61, samples=315 lat (msec) : 250=0.23%, 500=2.38%, 750=15.86%, 1000=38.16%, 2000=43.01% lat (msec) : >=2000=0.35% cpu : usr=0.05%, sys=0.25%, ctx=1665, 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 Run status group 0 (all jobs): WRITE: bw=254KiB/s (260kB/s), 63.5KiB/s-63.6KiB/s (65.0kB/s-65.1kB/s), io=40.0MiB (41.9MB), run=161098-161295msec 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=144751: Thu Aug 27 12:06:55 2026 read: IOPS=9, BW=37.8KiB/s (38.7kB/s)(5048KiB/133502msec) slat (usec): min=2933, max=97601, avg=18624.95, stdev=11312.79 clat (msec): min=24, max=1102, avg=512.77, stdev=170.91 lat (msec): min=35, max=1163, avg=531.41, stdev=174.08 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 284], 10.00th=[ 326], 20.00th=[ 372], | 30.00th=[ 418], 40.00th=[ 460], 50.00th=[ 502], 60.00th=[ 542], | 70.00th=[ 584], 80.00th=[ 642], 90.00th=[ 726], 95.00th=[ 844], | 99.00th=[ 1003], 99.50th=[ 1053], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 95, per=25.34%, avg=38.01, stdev=19.96, samples=259 iops : min= 1, max= 23, avg= 8.92, stdev= 5.02, samples=259 write: IOPS=9, BW=38.9KiB/s (39.8kB/s)(5192KiB/133502msec); 0 zone resets slat (usec): min=27, max=27576, avg=388.96, stdev=1581.01 clat (msec): min=314, max=2165, avg=1125.69, stdev=339.20 lat (msec): min=314, max=2165, avg=1126.08, stdev=339.27 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 617], 10.00th=[ 709], 20.00th=[ 827], | 30.00th=[ 927], 40.00th=[ 1011], 50.00th=[ 1099], 60.00th=[ 1183], | 70.00th=[ 1284], 80.00th=[ 1418], 90.00th=[ 1586], 95.00th=[ 1720], | 99.00th=[ 1989], 99.50th=[ 2072], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 110, per=24.59%, avg=38.36, stdev=18.69, samples=263 iops : min= 1, max= 27, avg= 9.00, stdev= 4.70, samples=263 lat (msec) : 50=0.16%, 100=0.27%, 250=1.56%, 500=23.63%, 750=25.94% lat (msec) : 1000=16.56%, 2000=31.48%, >=2000=0.39% cpu : usr=0.11%, sys=0.77%, ctx=4535, 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=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=144752: Thu Aug 27 12:06:55 2026 read: IOPS=9, BW=37.2KiB/s (38.1kB/s)(4976KiB/133599msec) slat (usec): min=2752, max=71002, avg=18927.21, stdev=11026.54 clat (msec): min=38, max=1109, avg=510.25, stdev=169.15 lat (msec): min=55, max=1166, avg=529.19, stdev=172.56 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 275], 10.00th=[ 326], 20.00th=[ 380], | 30.00th=[ 418], 40.00th=[ 456], 50.00th=[ 489], 60.00th=[ 531], | 70.00th=[ 567], 80.00th=[ 625], 90.00th=[ 735], 95.00th=[ 844], | 99.00th=[ 1003], 99.50th=[ 1045], 99.90th=[ 1099], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 117, per=24.82%, avg=37.23, stdev=21.70, samples=260 iops : min= 1, max= 29, avg= 8.73, stdev= 5.46, samples=260 write: IOPS=9, BW=39.4KiB/s (40.3kB/s)(5264KiB/133599msec); 0 zone resets slat (usec): min=29, max=24807, avg=374.99, stdev=1316.81 clat (msec): min=337, max=2207, avg=1121.37, stdev=339.91 lat (msec): min=337, max=2207, avg=1121.75, stdev=339.98 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 609], 10.00th=[ 701], 20.00th=[ 827], | 30.00th=[ 927], 40.00th=[ 1011], 50.00th=[ 1116], 60.00th=[ 1183], | 70.00th=[ 1284], 80.00th=[ 1401], 90.00th=[ 1586], 95.00th=[ 1737], | 99.00th=[ 1989], 99.50th=[ 2089], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 95, per=25.19%, avg=39.29, stdev=19.78, samples=261 iops : min= 1, max= 23, avg= 9.24, stdev= 4.96, samples=261 lat (msec) : 50=0.04%, 100=0.12%, 250=1.68%, 500=24.84%, 750=24.41% lat (msec) : 1000=16.56%, 2000=31.84%, >=2000=0.51% cpu : usr=0.13%, sys=0.75%, ctx=4624, 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=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=144753: Thu Aug 27 12:06:55 2026 read: IOPS=9, BW=37.3KiB/s (38.2kB/s)(4984KiB/133713msec) slat (usec): min=3757, max=83092, avg=18517.37, stdev=10612.22 clat (msec): min=32, max=1215, avg=510.29, stdev=175.87 lat (msec): min=45, max=1226, avg=528.82, stdev=178.63 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 239], 10.00th=[ 317], 20.00th=[ 376], | 30.00th=[ 414], 40.00th=[ 456], 50.00th=[ 498], 60.00th=[ 535], | 70.00th=[ 584], 80.00th=[ 642], 90.00th=[ 735], 95.00th=[ 844], | 99.00th=[ 978], 99.50th=[ 1083], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 7, max= 104, per=25.12%, avg=37.68, stdev=20.74, samples=258 iops : min= 1, max= 26, avg= 8.83, stdev= 5.21, samples=258 write: IOPS=9, BW=39.3KiB/s (40.3kB/s)(5256KiB/133713msec); 0 zone resets slat (usec): min=28, max=25781, avg=448.49, stdev=1568.79 clat (msec): min=184, max=2194, avg=1123.31, stdev=336.50 lat (msec): min=184, max=2195, avg=1123.76, stdev=336.56 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 567], 10.00th=[ 709], 20.00th=[ 844], | 30.00th=[ 944], 40.00th=[ 1028], 50.00th=[ 1116], 60.00th=[ 1183], | 70.00th=[ 1284], 80.00th=[ 1401], 90.00th=[ 1552], 95.00th=[ 1703], | 99.00th=[ 1938], 99.50th=[ 2072], 99.90th=[ 2140], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 95, per=24.96%, avg=38.93, stdev=18.32, samples=261 iops : min= 1, max= 23, avg= 9.15, stdev= 4.61, samples=261 lat (msec) : 50=0.12%, 100=0.39%, 250=2.19%, 500=23.67%, 750=24.30% lat (msec) : 1000=16.41%, 2000=32.54%, >=2000=0.39% cpu : usr=0.12%, sys=0.73%, ctx=4502, 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=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=144754: Thu Aug 27 12:06:55 2026 read: IOPS=9, BW=38.0KiB/s (38.9kB/s)(5060KiB/133141msec) slat (usec): min=47, max=97262, avg=18725.66, stdev=11509.61 clat (msec): min=8, max=1065, avg=513.53, stdev=167.77 lat (msec): min=29, max=1163, avg=532.26, stdev=170.92 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 279], 10.00th=[ 330], 20.00th=[ 368], | 30.00th=[ 418], 40.00th=[ 460], 50.00th=[ 502], 60.00th=[ 535], | 70.00th=[ 592], 80.00th=[ 642], 90.00th=[ 726], 95.00th=[ 844], | 99.00th=[ 978], 99.50th=[ 995], 99.90th=[ 1045], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 117, per=25.60%, avg=38.40, stdev=20.42, samples=257 iops : min= 1, max= 29, avg= 9.02, stdev= 5.12, samples=257 write: IOPS=9, BW=38.9KiB/s (39.8kB/s)(5180KiB/133141msec); 0 zone resets slat (usec): min=33, max=25543, avg=402.93, stdev=1425.51 clat (msec): min=141, max=2190, avg=1123.38, stdev=342.68 lat (msec): min=141, max=2190, avg=1123.79, stdev=342.73 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 592], 10.00th=[ 709], 20.00th=[ 852], | 30.00th=[ 944], 40.00th=[ 1028], 50.00th=[ 1116], 60.00th=[ 1167], | 70.00th=[ 1267], 80.00th=[ 1401], 90.00th=[ 1586], 95.00th=[ 1720], | 99.00th=[ 2056], 99.50th=[ 2123], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 110, per=24.58%, avg=38.35, stdev=19.07, samples=262 iops : min= 1, max= 27, avg= 9.01, stdev= 4.79, samples=262 lat (msec) : 10=0.04%, 50=0.12%, 100=0.16%, 250=1.45%, 500=24.49% lat (msec) : 750=24.84%, 1000=16.88%, 2000=31.29%, >=2000=0.74% cpu : usr=0.14%, sys=0.75%, ctx=4613, 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=150KiB/s (154kB/s), 37.2KiB/s-38.0KiB/s (38.1kB/s-38.9kB/s), io=19.6MiB (20.5MB), run=133141-133713msec WRITE: bw=156KiB/s (160kB/s), 38.9KiB/s-39.4KiB/s (39.8kB/s-40.3kB/s), io=20.4MiB (21.4MB), run=133141-133713msec 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=144780: Thu Aug 27 12:07:09 2026 read: IOPS=1, BW=68.0MiB/s (71.3MB/s)(40.0MiB/588msec) slat (nsec): min=56147k, max=56147k, avg=56147465.00, stdev= 0.00 clat (nsec): min=507171k, max=507171k, avg=507171092.00, stdev= 0.00 lat (nsec): min=563326k, max=563326k, avg=563325877.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 506], | 30.00th=[ 506], 40.00th=[ 506], 50.00th=[ 506], 60.00th=[ 506], | 70.00th=[ 506], 80.00th=[ 506], 90.00th=[ 506], 95.00th=[ 506], | 99.00th=[ 506], 99.50th=[ 506], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.87%, ctx=5, majf=0, minf=7 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=68.0MiB/s (71.3MB/s), 68.0MiB/s-68.0MiB/s (71.3MB/s-71.3MB/s), io=40.0MiB (41.9MB), run=588-588msec 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