== sanity test 398c: run fio to test AIO ================= 04:24:50 (1784190290) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.548826 s, 76.4 MB/s osc.lustre-OST0000-osc-ffff9ff5910de800.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=145285: Thu Jul 16 04:27:31 2026 write: IOPS=16, BW=67.5KiB/s (69.1kB/s)(10.0MiB/151745msec); 0 zone resets slat (usec): min=51, max=17351, avg=433.13, stdev=1156.93 clat (msec): min=325, max=1799, avg=946.91, stdev=210.03 lat (msec): min=325, max=1799, avg=947.35, stdev=210.01 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 600], 10.00th=[ 693], 20.00th=[ 776], | 30.00th=[ 844], 40.00th=[ 894], 50.00th=[ 936], 60.00th=[ 986], | 70.00th=[ 1045], 80.00th=[ 1116], 90.00th=[ 1217], 95.00th=[ 1284], | 99.00th=[ 1502], 99.50th=[ 1636], 99.90th=[ 1754], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 7, max= 128, per=25.67%, avg=69.06, stdev=30.42, samples=292 iops : min= 1, max= 32, avg=16.78, stdev= 7.60, samples=292 lat (msec) : 500=1.91%, 750=14.53%, 1000=45.70%, 2000=37.85% cpu : usr=0.05%, sys=0.34%, ctx=2337, 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=145286: Thu Jul 16 04:27:31 2026 write: IOPS=16, BW=67.6KiB/s (69.2kB/s)(10.0MiB/151462msec); 0 zone resets slat (usec): min=43, max=11297, avg=353.81, stdev=806.47 clat (msec): min=121, max=1813, avg=945.81, stdev=214.02 lat (msec): min=122, max=1813, avg=946.17, stdev=213.96 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 600], 10.00th=[ 693], 20.00th=[ 776], | 30.00th=[ 844], 40.00th=[ 885], 50.00th=[ 936], 60.00th=[ 986], | 70.00th=[ 1045], 80.00th=[ 1116], 90.00th=[ 1217], 95.00th=[ 1284], | 99.00th=[ 1519], 99.50th=[ 1603], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7, max= 151, per=25.15%, avg=67.65, stdev=28.55, samples=298 iops : min= 1, max= 37, avg=16.44, stdev= 7.10, samples=298 lat (msec) : 250=0.20%, 500=2.03%, 750=13.24%, 1000=45.47%, 2000=39.06% cpu : usr=0.05%, sys=0.31%, ctx=2089, 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=145287: Thu Jul 16 04:27:31 2026 write: IOPS=16, BW=67.7KiB/s (69.3kB/s)(10.0MiB/151289msec); 0 zone resets slat (usec): min=48, max=18092, avg=365.56, stdev=916.54 clat (msec): min=330, max=1716, avg=944.20, stdev=216.62 lat (msec): min=330, max=1716, avg=944.57, stdev=216.59 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 600], 10.00th=[ 693], 20.00th=[ 776], | 30.00th=[ 835], 40.00th=[ 885], 50.00th=[ 936], 60.00th=[ 986], | 70.00th=[ 1045], 80.00th=[ 1116], 90.00th=[ 1217], 95.00th=[ 1301], | 99.00th=[ 1569], 99.50th=[ 1636], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 7, max= 255, per=25.41%, avg=68.36, stdev=31.27, samples=295 iops : min= 1, max= 63, avg=16.61, stdev= 7.82, samples=295 lat (msec) : 500=1.99%, 750=14.65%, 1000=46.25%, 2000=37.11% cpu : usr=0.05%, sys=0.35%, ctx=2121, 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=145288: Thu Jul 16 04:27:31 2026 write: IOPS=16, BW=67.5KiB/s (69.1kB/s)(10.0MiB/151679msec); 0 zone resets slat (usec): min=45, max=20538, avg=367.43, stdev=1075.10 clat (msec): min=312, max=1745, avg=946.87, stdev=210.42 lat (msec): min=313, max=1746, avg=947.24, stdev=210.43 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 592], 10.00th=[ 701], 20.00th=[ 776], | 30.00th=[ 835], 40.00th=[ 894], 50.00th=[ 944], 60.00th=[ 986], | 70.00th=[ 1053], 80.00th=[ 1116], 90.00th=[ 1200], 95.00th=[ 1284], | 99.00th=[ 1469], 99.50th=[ 1620], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1754] bw ( KiB/s): min= 7, max= 255, per=25.68%, avg=69.07, stdev=32.89, samples=292 iops : min= 1, max= 63, avg=16.79, stdev= 8.25, samples=292 lat (msec) : 500=1.29%, 750=14.61%, 1000=45.47%, 2000=38.63% cpu : usr=0.05%, sys=0.33%, ctx=1925, 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=270KiB/s (276kB/s), 67.5KiB/s-67.7KiB/s (69.1kB/s-69.3kB/s), io=40.0MiB (41.9MB), run=151289-151745msec 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=145321: Thu Jul 16 04:29:41 2026 read: IOPS=10, BW=41.6KiB/s (42.6kB/s)(5048KiB/121422msec) slat (usec): min=3349, max=65404, avg=15551.42, stdev=8717.86 clat (msec): min=16, max=1154, avg=459.60, stdev=129.22 lat (msec): min=25, max=1165, avg=475.16, stdev=130.65 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 279], 10.00th=[ 313], 20.00th=[ 355], | 30.00th=[ 388], 40.00th=[ 422], 50.00th=[ 451], 60.00th=[ 481], | 70.00th=[ 514], 80.00th=[ 550], 90.00th=[ 617], 95.00th=[ 676], | 99.00th=[ 869], 99.50th=[ 927], 99.90th=[ 1036], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 103, per=25.18%, avg=41.55, stdev=20.25, samples=238 iops : min= 1, max= 25, avg= 9.91, stdev= 5.08, samples=238 write: IOPS=10, BW=42.8KiB/s (43.8kB/s)(5192KiB/121422msec); 0 zone resets slat (usec): min=61, max=14970, avg=472.36, stdev=1127.92 clat (msec): min=268, max=2450, avg=1031.68, stdev=296.53 lat (msec): min=268, max=2450, avg=1032.15, stdev=296.50 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 609], 10.00th=[ 676], 20.00th=[ 768], | 30.00th=[ 860], 40.00th=[ 944], 50.00th=[ 1020], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1267], 90.00th=[ 1368], 95.00th=[ 1502], | 99.00th=[ 1972], 99.50th=[ 2198], 99.90th=[ 2333], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 95, per=24.74%, avg=42.31, stdev=19.66, samples=240 iops : min= 1, max= 23, avg=10.10, stdev= 4.96, samples=240 lat (msec) : 20=0.04%, 50=0.16%, 100=0.04%, 250=1.05%, 500=32.19% lat (msec) : 750=23.87%, 1000=16.05%, 2000=26.29%, >=2000=0.31% cpu : usr=0.09%, sys=0.73%, ctx=4735, 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=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=145322: Thu Jul 16 04:29:41 2026 read: IOPS=10, BW=40.9KiB/s (41.9kB/s)(4976KiB/121558msec) slat (usec): min=3090, max=92742, avg=15715.46, stdev=8543.75 clat (msec): min=23, max=1052, avg=461.84, stdev=123.81 lat (msec): min=41, max=1074, avg=477.57, stdev=125.24 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 292], 10.00th=[ 326], 20.00th=[ 359], | 30.00th=[ 388], 40.00th=[ 422], 50.00th=[ 451], 60.00th=[ 481], | 70.00th=[ 514], 80.00th=[ 558], 90.00th=[ 625], 95.00th=[ 676], | 99.00th=[ 818], 99.50th=[ 885], 99.90th=[ 961], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 127, per=24.85%, avg=41.00, stdev=20.36, samples=237 iops : min= 1, max= 31, avg= 9.77, stdev= 5.10, samples=237 write: IOPS=10, BW=43.3KiB/s (44.3kB/s)(5264KiB/121558msec); 0 zone resets slat (usec): min=51, max=16309, avg=452.09, stdev=1130.49 clat (msec): min=221, max=2376, avg=1023.74, stdev=284.72 lat (msec): min=222, max=2377, avg=1024.19, stdev=284.77 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 609], 10.00th=[ 684], 20.00th=[ 776], | 30.00th=[ 869], 40.00th=[ 944], 50.00th=[ 1011], 60.00th=[ 1083], | 70.00th=[ 1150], 80.00th=[ 1234], 90.00th=[ 1368], 95.00th=[ 1469], | 99.00th=[ 1871], 99.50th=[ 2232], 99.90th=[ 2333], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 110, per=25.14%, avg=42.99, stdev=20.48, samples=239 iops : min= 1, max= 27, avg=10.27, stdev= 5.13, samples=239 lat (msec) : 50=0.16%, 100=0.08%, 250=0.66%, 500=31.91%, 750=23.16% lat (msec) : 1000=17.62%, 2000=25.98%, >=2000=0.43% cpu : usr=0.10%, sys=0.67%, ctx=4775, majf=0, minf=17 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=145323: Thu Jul 16 04:29:41 2026 read: IOPS=10, BW=41.0KiB/s (42.0kB/s)(4984KiB/121492msec) slat (usec): min=2678, max=69808, avg=15566.40, stdev=8620.43 clat (msec): min=18, max=1032, avg=461.31, stdev=128.40 lat (msec): min=31, max=1064, avg=476.89, stdev=129.68 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 279], 10.00th=[ 317], 20.00th=[ 355], | 30.00th=[ 393], 40.00th=[ 418], 50.00th=[ 456], 60.00th=[ 489], | 70.00th=[ 518], 80.00th=[ 558], 90.00th=[ 625], 95.00th=[ 667], | 99.00th=[ 827], 99.50th=[ 902], 99.90th=[ 961], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7, max= 112, per=24.80%, avg=40.92, stdev=20.12, samples=239 iops : min= 1, max= 28, avg= 9.75, stdev= 5.03, samples=239 write: IOPS=10, BW=43.3KiB/s (44.3kB/s)(5256KiB/121492msec); 0 zone resets slat (usec): min=57, max=22600, avg=473.63, stdev=1261.10 clat (msec): min=284, max=2469, avg=1024.44, stdev=294.20 lat (msec): min=285, max=2469, avg=1024.92, stdev=294.26 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 600], 10.00th=[ 684], 20.00th=[ 768], | 30.00th=[ 860], 40.00th=[ 927], 50.00th=[ 1020], 60.00th=[ 1083], | 70.00th=[ 1150], 80.00th=[ 1250], 90.00th=[ 1368], 95.00th=[ 1485], | 99.00th=[ 1955], 99.50th=[ 2198], 99.90th=[ 2433], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 104, per=25.04%, avg=42.82, stdev=18.84, samples=239 iops : min= 1, max= 26, avg=10.23, stdev= 4.71, samples=239 lat (msec) : 20=0.04%, 50=0.08%, 100=0.31%, 250=0.66%, 500=31.05% lat (msec) : 750=24.65%, 1000=16.64%, 2000=26.17%, >=2000=0.39% cpu : usr=0.11%, sys=0.73%, ctx=4851, 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=145324: Thu Jul 16 04:29:41 2026 read: IOPS=10, BW=41.9KiB/s (42.9kB/s)(5060KiB/120880msec) slat (usec): min=62, max=52753, avg=15371.00, stdev=8366.35 clat (msec): min=10, max=1492, avg=465.13, stdev=137.47 lat (msec): min=15, max=1505, avg=480.52, stdev=139.03 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 275], 10.00th=[ 317], 20.00th=[ 363], | 30.00th=[ 393], 40.00th=[ 426], 50.00th=[ 451], 60.00th=[ 489], | 70.00th=[ 518], 80.00th=[ 558], 90.00th=[ 634], 95.00th=[ 684], | 99.00th=[ 852], 99.50th=[ 1011], 99.90th=[ 1133], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 7, max= 103, per=26.02%, avg=42.94, stdev=18.76, samples=231 iops : min= 1, max= 25, avg=10.25, stdev= 4.71, samples=231 write: IOPS=10, BW=42.9KiB/s (43.9kB/s)(5180KiB/120880msec); 0 zone resets slat (usec): min=52, max=15816, avg=449.66, stdev=1136.02 clat (msec): min=114, max=2351, avg=1022.65, stdev=303.70 lat (msec): min=114, max=2352, avg=1023.10, stdev=303.68 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 600], 10.00th=[ 659], 20.00th=[ 776], | 30.00th=[ 860], 40.00th=[ 944], 50.00th=[ 1020], 60.00th=[ 1083], | 70.00th=[ 1150], 80.00th=[ 1234], 90.00th=[ 1368], 95.00th=[ 1502], | 99.00th=[ 2056], 99.50th=[ 2198], 99.90th=[ 2333], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 119, per=24.75%, avg=42.33, stdev=19.51, samples=239 iops : min= 1, max= 29, avg=10.10, stdev= 4.88, samples=239 lat (msec) : 20=0.12%, 50=0.20%, 100=0.12%, 250=1.52%, 500=31.21% lat (msec) : 750=23.75%, 1000=16.68%, 2000=25.82%, >=2000=0.59% cpu : usr=0.09%, sys=0.69%, ctx=4735, majf=0, minf=18 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=165KiB/s (169kB/s), 40.9KiB/s-41.9KiB/s (41.9kB/s-42.9kB/s), io=19.6MiB (20.5MB), run=120880-121558msec WRITE: bw=172KiB/s (176kB/s), 42.8KiB/s-43.3KiB/s (43.8kB/s-44.3kB/s), io=20.4MiB (21.4MB), run=120880-121558msec 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=145346: Thu Jul 16 04:29:52 2026 read: IOPS=1, BW=54.1MiB/s (56.7MB/s)(40.0MiB/740msec) slat (nsec): min=44943k, max=44943k, avg=44943156.00, stdev= 0.00 clat (nsec): min=669968k, max=669968k, avg=669967517.00, stdev= 0.00 lat (nsec): min=714915k, max=714915k, avg=714915360.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.76%, 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=54.1MiB/s (56.7MB/s), 54.1MiB/s-54.1MiB/s (56.7MB/s-56.7MB/s), io=40.0MiB (41.9MB), run=740-740msec 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