== sanity test 398c: run fio to test AIO ================= 20:10:41 (1786407041) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.966873 s, 43.4 MB/s osc.lustre-OST0000-osc-ffff8998c6128800.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=144317: Mon Aug 10 20:14:29 2026 write: IOPS=11, BW=47.3KiB/s (48.4kB/s)(10.0MiB/216520msec); 0 zone resets slat (usec): min=50, max=15355, avg=536.99, stdev=1106.77 clat (msec): min=306, max=2708, avg=1350.72, stdev=316.42 lat (msec): min=306, max=2708, avg=1351.27, stdev=316.47 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 860], 10.00th=[ 986], 20.00th=[ 1099], | 30.00th=[ 1200], 40.00th=[ 1284], 50.00th=[ 1351], 60.00th=[ 1418], | 70.00th=[ 1502], 80.00th=[ 1586], 90.00th=[ 1720], 95.00th=[ 1838], | 99.00th=[ 2123], 99.50th=[ 2299], 99.90th=[ 2635], 99.95th=[ 2635], | 99.99th=[ 2702] bw ( KiB/s): min= 7, max= 255, per=25.42%, avg=48.04, stdev=29.20, samples=419 iops : min= 1, max= 63, avg=11.63, stdev= 7.32, samples=419 lat (msec) : 500=1.45%, 750=1.37%, 1000=9.02%, 2000=85.78%, >=2000=2.38% cpu : usr=0.05%, sys=0.31%, ctx=2194, 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=144318: Mon Aug 10 20:14:29 2026 write: IOPS=11, BW=47.3KiB/s (48.5kB/s)(10.0MiB/216278msec); 0 zone resets slat (usec): min=50, max=16558, avg=551.46, stdev=1145.86 clat (msec): min=245, max=2446, avg=1350.60, stdev=329.21 lat (msec): min=245, max=2446, avg=1351.15, stdev=329.21 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 860], 10.00th=[ 978], 20.00th=[ 1099], | 30.00th=[ 1200], 40.00th=[ 1284], 50.00th=[ 1351], 60.00th=[ 1435], | 70.00th=[ 1502], 80.00th=[ 1603], 90.00th=[ 1754], 95.00th=[ 1838], | 99.00th=[ 2123], 99.50th=[ 2265], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 231, per=25.40%, avg=48.01, stdev=27.03, samples=419 iops : min= 1, max= 57, avg=11.61, stdev= 6.76, samples=419 lat (msec) : 250=0.27%, 500=1.64%, 750=1.68%, 1000=8.48%, 2000=85.08% lat (msec) : >=2000=2.85% cpu : usr=0.06%, sys=0.35%, ctx=2315, 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=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=144319: Mon Aug 10 20:14:29 2026 write: IOPS=11, BW=47.3KiB/s (48.4kB/s)(10.0MiB/216463msec); 0 zone resets slat (usec): min=50, max=12043, avg=488.54, stdev=964.42 clat (msec): min=311, max=2610, avg=1350.61, stdev=320.22 lat (msec): min=311, max=2610, avg=1351.10, stdev=320.25 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 860], 10.00th=[ 978], 20.00th=[ 1116], | 30.00th=[ 1200], 40.00th=[ 1284], 50.00th=[ 1351], 60.00th=[ 1435], | 70.00th=[ 1502], 80.00th=[ 1586], 90.00th=[ 1737], 95.00th=[ 1871], | 99.00th=[ 2198], 99.50th=[ 2198], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2601] bw ( KiB/s): min= 7, max= 255, per=25.67%, avg=48.51, stdev=27.30, samples=415 iops : min= 1, max= 63, avg=11.74, stdev= 6.87, samples=415 lat (msec) : 500=1.88%, 750=0.70%, 1000=8.91%, 2000=85.78%, >=2000=2.73% cpu : usr=0.05%, sys=0.34%, ctx=2207, 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=144320: Mon Aug 10 20:14:29 2026 write: IOPS=11, BW=47.3KiB/s (48.5kB/s)(10.0MiB/216338msec); 0 zone resets slat (usec): min=51, max=14194, avg=511.94, stdev=1021.28 clat (msec): min=204, max=2647, avg=1350.12, stdev=323.95 lat (msec): min=204, max=2648, avg=1350.64, stdev=323.97 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 869], 10.00th=[ 969], 20.00th=[ 1116], | 30.00th=[ 1200], 40.00th=[ 1284], 50.00th=[ 1351], 60.00th=[ 1418], | 70.00th=[ 1502], 80.00th=[ 1603], 90.00th=[ 1720], 95.00th=[ 1871], | 99.00th=[ 2198], 99.50th=[ 2366], 99.90th=[ 2635], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 7, max= 215, per=25.11%, avg=47.46, stdev=27.91, samples=424 iops : min= 1, max= 53, avg=11.48, stdev= 7.02, samples=424 lat (msec) : 250=0.04%, 500=2.11%, 750=1.05%, 1000=8.55%, 2000=85.55% lat (msec) : >=2000=2.70% cpu : usr=0.06%, sys=0.32%, ctx=2294, 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 Run status group 0 (all jobs): WRITE: bw=189KiB/s (194kB/s), 47.3KiB/s-47.3KiB/s (48.4kB/s-48.5kB/s), io=40.0MiB (41.9MB), run=216278-216520msec 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=144361: Mon Aug 10 20:17:05 2026 read: IOPS=8, BW=34.1KiB/s (34.9kB/s)(5048KiB/148160msec) slat (usec): min=4543, max=92855, avg=20941.49, stdev=10339.35 clat (msec): min=15, max=1299, avg=583.30, stdev=143.35 lat (msec): min=31, max=1318, avg=604.26, stdev=144.93 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 397], 10.00th=[ 430], 20.00th=[ 468], | 30.00th=[ 506], 40.00th=[ 535], 50.00th=[ 567], 60.00th=[ 600], | 70.00th=[ 634], 80.00th=[ 684], 90.00th=[ 768], 95.00th=[ 827], | 99.00th=[ 1053], 99.50th=[ 1133], 99.90th=[ 1284], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 7, max= 87, per=25.40%, avg=34.29, stdev=17.30, samples=287 iops : min= 1, max= 21, avg= 8.06, stdev= 4.32, samples=287 write: IOPS=8, BW=35.0KiB/s (35.9kB/s)(5192KiB/148160msec); 0 zone resets slat (usec): min=55, max=16041, avg=663.52, stdev=1282.38 clat (msec): min=453, max=2330, avg=1234.50, stdev=298.52 lat (msec): min=454, max=2331, avg=1235.17, stdev=298.49 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 793], 10.00th=[ 869], 20.00th=[ 978], | 30.00th=[ 1062], 40.00th=[ 1150], 50.00th=[ 1217], 60.00th=[ 1284], | 70.00th=[ 1385], 80.00th=[ 1485], 90.00th=[ 1653], 95.00th=[ 1754], | 99.00th=[ 2056], 99.50th=[ 2123], 99.90th=[ 2299], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 103, per=25.04%, avg=35.06, stdev=17.29, samples=288 iops : min= 1, max= 25, avg= 8.25, stdev= 4.35, samples=288 lat (msec) : 20=0.04%, 100=0.16%, 250=0.16%, 500=14.10%, 750=30.51% lat (msec) : 1000=15.66%, 2000=38.75%, >=2000=0.62% cpu : usr=0.09%, sys=0.76%, ctx=4850, 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=144362: Mon Aug 10 20:17:05 2026 read: IOPS=8, BW=33.6KiB/s (34.4kB/s)(4976KiB/148221msec) slat (usec): min=4308, max=69955, avg=20869.47, stdev=9612.57 clat (msec): min=48, max=1314, avg=585.51, stdev=149.82 lat (msec): min=80, max=1341, avg=606.40, stdev=151.41 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 384], 10.00th=[ 422], 20.00th=[ 468], | 30.00th=[ 506], 40.00th=[ 542], 50.00th=[ 575], 60.00th=[ 609], | 70.00th=[ 642], 80.00th=[ 693], 90.00th=[ 768], 95.00th=[ 844], | 99.00th=[ 1099], 99.50th=[ 1183], 99.90th=[ 1284], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 7, max= 102, per=25.23%, avg=34.07, stdev=17.37, samples=284 iops : min= 1, max= 25, avg= 8.00, stdev= 4.35, samples=284 write: IOPS=8, BW=35.5KiB/s (36.4kB/s)(5264KiB/148221msec); 0 zone resets slat (usec): min=53, max=17479, avg=600.21, stdev=1146.45 clat (msec): min=236, max=2346, avg=1225.05, stdev=317.75 lat (msec): min=236, max=2355, avg=1225.65, stdev=317.72 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 751], 10.00th=[ 827], 20.00th=[ 953], | 30.00th=[ 1053], 40.00th=[ 1133], 50.00th=[ 1200], 60.00th=[ 1284], | 70.00th=[ 1385], 80.00th=[ 1485], 90.00th=[ 1636], 95.00th=[ 1770], | 99.00th=[ 2056], 99.50th=[ 2198], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 102, per=25.36%, avg=35.50, stdev=17.71, samples=288 iops : min= 1, max= 25, avg= 8.36, stdev= 4.43, samples=288 lat (msec) : 50=0.04%, 100=0.08%, 250=0.31%, 500=13.98%, 750=31.13% lat (msec) : 1000=14.96%, 2000=38.71%, >=2000=0.78% cpu : usr=0.12%, sys=0.80%, ctx=5240, 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=144363: Mon Aug 10 20:17:05 2026 read: IOPS=8, BW=33.7KiB/s (34.5kB/s)(4984KiB/148020msec) slat (usec): min=60, max=70602, avg=20411.07, stdev=9627.44 clat (msec): min=22, max=1354, avg=581.80, stdev=141.97 lat (msec): min=38, max=1378, avg=602.23, stdev=143.07 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 401], 10.00th=[ 426], 20.00th=[ 472], | 30.00th=[ 510], 40.00th=[ 542], 50.00th=[ 567], 60.00th=[ 600], | 70.00th=[ 625], 80.00th=[ 676], 90.00th=[ 760], 95.00th=[ 835], | 99.00th=[ 1020], 99.50th=[ 1133], 99.90th=[ 1284], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 87, per=25.06%, avg=33.83, stdev=16.65, samples=288 iops : min= 1, max= 21, avg= 7.94, stdev= 4.17, samples=288 write: IOPS=8, BW=35.5KiB/s (36.4kB/s)(5256KiB/148020msec); 0 zone resets slat (usec): min=53, max=10468, avg=598.14, stdev=1017.98 clat (msec): min=284, max=2418, avg=1229.69, stdev=319.39 lat (msec): min=285, max=2418, avg=1230.29, stdev=319.45 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 760], 10.00th=[ 852], 20.00th=[ 961], | 30.00th=[ 1053], 40.00th=[ 1133], 50.00th=[ 1200], 60.00th=[ 1284], | 70.00th=[ 1385], 80.00th=[ 1485], 90.00th=[ 1670], 95.00th=[ 1770], | 99.00th=[ 2072], 99.50th=[ 2232], 99.90th=[ 2366], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 95, per=25.30%, avg=35.42, stdev=16.62, samples=288 iops : min= 1, max= 23, avg= 8.35, stdev= 4.17, samples=288 lat (msec) : 50=0.12%, 100=0.12%, 250=0.16%, 500=13.12%, 750=32.07% lat (msec) : 1000=14.88%, 2000=38.75%, >=2000=0.78% cpu : usr=0.10%, sys=0.79%, ctx=4979, 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=144364: Mon Aug 10 20:17:05 2026 read: IOPS=8, BW=34.2KiB/s (35.0kB/s)(5060KiB/148026msec) slat (usec): min=5330, max=77496, avg=20720.06, stdev=9857.27 clat (msec): min=41, max=1259, avg=586.92, stdev=139.79 lat (msec): min=66, max=1279, avg=607.65, stdev=141.04 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 414], 10.00th=[ 439], 20.00th=[ 472], | 30.00th=[ 510], 40.00th=[ 542], 50.00th=[ 575], 60.00th=[ 600], | 70.00th=[ 642], 80.00th=[ 684], 90.00th=[ 760], 95.00th=[ 827], | 99.00th=[ 1070], 99.50th=[ 1167], 99.90th=[ 1250], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 7, max= 88, per=25.69%, avg=34.68, stdev=16.62, samples=285 iops : min= 1, max= 22, avg= 8.15, stdev= 4.18, samples=285 write: IOPS=8, BW=34.0KiB/s (35.8kB/s)(5180KiB/148026msec); 0 zone resets slat (usec): min=52, max=12511, avg=661.83, stdev=1322.01 clat (msec): min=280, max=2326, avg=1230.75, stdev=316.18 lat (msec): min=280, max=2326, avg=1231.42, stdev=316.20 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 760], 10.00th=[ 852], 20.00th=[ 953], | 30.00th=[ 1053], 40.00th=[ 1133], 50.00th=[ 1200], 60.00th=[ 1284], | 70.00th=[ 1385], 80.00th=[ 1485], 90.00th=[ 1670], 95.00th=[ 1787], | 99.00th=[ 2072], 99.50th=[ 2232], 99.90th=[ 2299], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 104, per=25.05%, avg=35.08, stdev=18.43, samples=287 iops : min= 1, max= 26, avg= 8.26, stdev= 4.63, samples=287 lat (msec) : 50=0.04%, 100=0.04%, 250=0.16%, 500=13.63%, 750=32.19% lat (msec) : 1000=15.20%, 2000=38.05%, >=2000=0.70% cpu : usr=0.09%, sys=0.80%, ctx=5074, 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=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=135KiB/s (139kB/s), 33.6KiB/s-34.2KiB/s (34.4kB/s-35.0kB/s), io=19.6MiB (20.5MB), run=148020-148221msec WRITE: bw=141KiB/s (144kB/s), 34.0KiB/s-35.5KiB/s (35.8kB/s-36.4kB/s), io=20.4MiB (21.4MB), run=148020-148221msec 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=144390: Mon Aug 10 20:17:17 2026 read: IOPS=0, BW=39.6MiB/s (41.5MB/s)(40.0MiB/1010msec) slat (nsec): min=38640k, max=38640k, avg=38640075.00, stdev= 0.00 clat (nsec): min=949520k, max=949520k, avg=949520483.00, stdev= 0.00 lat (nsec): min=988190k, max=988190k, avg=988189912.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 953], 5.00th=[ 953], 10.00th=[ 953], 20.00th=[ 953], | 30.00th=[ 953], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 70.00th=[ 953], 80.00th=[ 953], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=1.49%, ctx=43, 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=39.6MiB/s (41.5MB/s), 39.6MiB/s-39.6MiB/s (41.5MB/s-41.5MB/s), io=40.0MiB (41.9MB), run=1010-1010msec 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