== sanity test 398c: run fio to test AIO ================= 21:58:40 (1790733520) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.508243 s, 82.5 MB/s osc.lustre-OST0000-osc-ffff905f02c00000.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=175189: Tue Sep 29 22:02:19 2026 write: IOPS=12, BW=48.0KiB/s (50.2kB/s)(10.0MiB/209002msec); 0 zone resets slat (usec): min=29, max=14437, avg=289.34, stdev=1045.78 clat (msec): min=250, max=3507, avg=1304.95, stdev=463.63 lat (msec): min=262, max=3508, avg=1305.24, stdev=463.58 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 760], 10.00th=[ 844], 20.00th=[ 961], | 30.00th=[ 1053], 40.00th=[ 1133], 50.00th=[ 1217], 60.00th=[ 1301], | 70.00th=[ 1435], 80.00th=[ 1586], 90.00th=[ 1888], 95.00th=[ 2198], | 99.00th=[ 2769], 99.50th=[ 3272], 99.90th=[ 3507], 99.95th=[ 3507], | 99.99th=[ 3507] bw ( KiB/s): min= 7, max= 128, per=26.39%, avg=51.45, stdev=32.89, samples=390 iops : min= 1, max= 32, avg=12.36, stdev= 8.25, samples=390 lat (msec) : 500=1.64%, 750=3.16%, 1000=19.18%, 2000=68.52%, >=2000=7.50% cpu : usr=0.05%, sys=0.19%, ctx=1462, 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=175190: Tue Sep 29 22:02:19 2026 write: IOPS=12, BW=49.1KiB/s (50.3kB/s)(10.0MiB/208422msec); 0 zone resets slat (usec): min=29, max=20560, avg=288.48, stdev=1153.35 clat (msec): min=77, max=3479, avg=1301.05, stdev=475.95 lat (msec): min=78, max=3480, avg=1301.34, stdev=475.97 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 718], 10.00th=[ 810], 20.00th=[ 936], | 30.00th=[ 1045], 40.00th=[ 1116], 50.00th=[ 1217], 60.00th=[ 1318], | 70.00th=[ 1435], 80.00th=[ 1586], 90.00th=[ 1938], 95.00th=[ 2232], | 99.00th=[ 2836], 99.50th=[ 3037], 99.90th=[ 3406], 99.95th=[ 3406], | 99.99th=[ 3473] bw ( KiB/s): min= 7, max= 135, per=26.32%, avg=51.32, stdev=28.07, samples=391 iops : min= 1, max= 33, avg=12.32, stdev= 7.07, samples=391 lat (msec) : 100=0.04%, 250=0.62%, 500=1.37%, 750=3.44%, 1000=19.77% lat (msec) : 2000=66.29%, >=2000=8.48% cpu : usr=0.04%, sys=0.19%, ctx=1489, 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=175191: Tue Sep 29 22:02:19 2026 write: IOPS=12, BW=49.1KiB/s (50.2kB/s)(10.0MiB/208681msec); 0 zone resets slat (usec): min=30, max=18343, avg=312.74, stdev=1198.51 clat (msec): min=142, max=3575, avg=1303.23, stdev=479.16 lat (msec): min=143, max=3575, avg=1303.55, stdev=479.13 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 743], 10.00th=[ 827], 20.00th=[ 944], | 30.00th=[ 1045], 40.00th=[ 1116], 50.00th=[ 1217], 60.00th=[ 1334], | 70.00th=[ 1435], 80.00th=[ 1586], 90.00th=[ 1921], 95.00th=[ 2299], | 99.00th=[ 2802], 99.50th=[ 3306], 99.90th=[ 3540], 99.95th=[ 3574], | 99.99th=[ 3574] bw ( KiB/s): min= 7, max= 166, per=25.59%, avg=49.90, stdev=27.05, samples=402 iops : min= 1, max= 41, avg=11.97, stdev= 6.81, samples=402 lat (msec) : 250=0.35%, 500=1.68%, 750=3.20%, 1000=20.82%, 2000=65.47% lat (msec) : >=2000=8.48% cpu : usr=0.04%, sys=0.21%, ctx=1893, 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=175192: Tue Sep 29 22:02:19 2026 write: IOPS=12, BW=49.1KiB/s (50.2kB/s)(10.0MiB/208681msec); 0 zone resets slat (usec): min=30, max=23170, avg=285.66, stdev=1069.41 clat (msec): min=273, max=3482, avg=1302.78, stdev=473.22 lat (msec): min=273, max=3482, avg=1303.06, stdev=473.23 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 726], 10.00th=[ 835], 20.00th=[ 944], | 30.00th=[ 1045], 40.00th=[ 1133], 50.00th=[ 1234], 60.00th=[ 1334], | 70.00th=[ 1435], 80.00th=[ 1586], 90.00th=[ 1921], 95.00th=[ 2232], | 99.00th=[ 2769], 99.50th=[ 3138], 99.90th=[ 3473], 99.95th=[ 3473], | 99.99th=[ 3473] bw ( KiB/s): min= 7, max= 128, per=25.27%, avg=49.29, stdev=25.10, samples=407 iops : min= 1, max= 32, avg=11.81, stdev= 6.31, samples=407 lat (msec) : 500=2.50%, 750=3.05%, 1000=20.16%, 2000=66.37%, >=2000=7.93% cpu : usr=0.05%, sys=0.20%, ctx=1634, 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=196KiB/s (201kB/s), 48.0KiB/s-49.1KiB/s (50.2kB/s-50.3kB/s), io=40.0MiB (41.9MB), run=208422-209002msec 0% of I/O are 1-page (PAGE_SIZE=4096), max 50% 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=175243: Tue Sep 29 22:04:35 2026 read: IOPS=10, BW=40.5KiB/s (41.5kB/s)(5048KiB/124616msec) slat (usec): min=3261, max=60480, avg=16571.90, stdev=9136.59 clat (msec): min=21, max=1132, avg=491.33, stdev=126.71 lat (msec): min=27, max=1145, avg=507.91, stdev=127.82 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 330], 10.00th=[ 355], 20.00th=[ 388], | 30.00th=[ 418], 40.00th=[ 447], 50.00th=[ 477], 60.00th=[ 510], | 70.00th=[ 542], 80.00th=[ 592], 90.00th=[ 667], 95.00th=[ 709], | 99.00th=[ 835], 99.50th=[ 894], 99.90th=[ 1028], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 95, per=25.06%, avg=40.35, stdev=19.80, samples=244 iops : min= 1, max= 23, avg= 9.53, stdev= 4.99, samples=244 write: IOPS=10, BW=41.7KiB/s (42.7kB/s)(5192KiB/124616msec); 0 zone resets slat (usec): min=31, max=17342, avg=325.04, stdev=1016.89 clat (msec): min=321, max=2044, avg=1039.06, stdev=308.94 lat (msec): min=321, max=2044, avg=1039.39, stdev=308.93 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 575], 10.00th=[ 651], 20.00th=[ 760], | 30.00th=[ 852], 40.00th=[ 936], 50.00th=[ 1011], 60.00th=[ 1099], | 70.00th=[ 1200], 80.00th=[ 1301], 90.00th=[ 1469], 95.00th=[ 1586], | 99.00th=[ 1804], 99.50th=[ 1888], 99.90th=[ 2005], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 117, per=24.95%, avg=41.66, stdev=20.63, samples=243 iops : min= 1, max= 29, avg= 9.86, stdev= 5.17, samples=243 lat (msec) : 50=0.23%, 100=0.04%, 250=0.31%, 500=28.87%, 750=27.85% lat (msec) : 1000=16.68%, 2000=25.94%, >=2000=0.08% cpu : usr=0.09%, sys=0.65%, ctx=4668, 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=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=175244: Tue Sep 29 22:04:35 2026 read: IOPS=9, BW=39.0KiB/s (40.9kB/s)(4976KiB/124463msec) slat (usec): min=33, max=60936, avg=16344.50, stdev=8764.87 clat (msec): min=49, max=1052, avg=495.34, stdev=123.88 lat (msec): min=57, max=1059, avg=511.69, stdev=124.67 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 330], 10.00th=[ 355], 20.00th=[ 393], | 30.00th=[ 422], 40.00th=[ 456], 50.00th=[ 481], 60.00th=[ 514], | 70.00th=[ 542], 80.00th=[ 592], 90.00th=[ 667], 95.00th=[ 718], | 99.00th=[ 827], 99.50th=[ 894], 99.90th=[ 1045], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 103, per=24.58%, avg=39.58, stdev=19.01, samples=245 iops : min= 1, max= 25, avg= 9.34, stdev= 4.76, samples=245 write: IOPS=10, BW=42.3KiB/s (43.3kB/s)(5264KiB/124463msec); 0 zone resets slat (usec): min=30, max=18514, avg=319.54, stdev=944.11 clat (msec): min=227, max=2066, avg=1028.34, stdev=308.10 lat (msec): min=227, max=2066, avg=1028.66, stdev=308.10 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 558], 10.00th=[ 642], 20.00th=[ 760], | 30.00th=[ 852], 40.00th=[ 927], 50.00th=[ 1003], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1301], 90.00th=[ 1469], 95.00th=[ 1569], | 99.00th=[ 1821], 99.50th=[ 1888], 99.90th=[ 2056], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 7, max= 103, per=24.88%, avg=41.54, stdev=18.88, samples=247 iops : min= 1, max= 25, avg= 9.83, stdev= 4.75, samples=247 lat (msec) : 50=0.04%, 100=0.08%, 250=0.35%, 500=27.77%, 750=27.85% lat (msec) : 1000=17.46%, 2000=26.33%, >=2000=0.12% cpu : usr=0.11%, sys=0.54%, ctx=4306, 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=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=175245: Tue Sep 29 22:04:35 2026 read: IOPS=9, BW=39.0KiB/s (40.0kB/s)(4984KiB/124622msec) slat (msec): min=3, max=596, avg=17.18, stdev=21.46 clat (msec): min=44, max=1494, avg=485.38, stdev=125.48 lat (msec): min=50, max=1512, avg=502.57, stdev=127.17 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 326], 10.00th=[ 359], 20.00th=[ 393], | 30.00th=[ 414], 40.00th=[ 439], 50.00th=[ 464], 60.00th=[ 493], | 70.00th=[ 531], 80.00th=[ 584], 90.00th=[ 651], 95.00th=[ 709], | 99.00th=[ 818], 99.50th=[ 944], 99.90th=[ 1183], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 7, max= 111, per=25.10%, avg=40.41, stdev=21.02, samples=241 iops : min= 1, max= 27, avg= 9.54, stdev= 5.31, samples=241 write: IOPS=10, BW=42.2KiB/s (43.2kB/s)(5256KiB/124622msec); 0 zone resets slat (usec): min=33, max=26756, avg=334.62, stdev=1303.17 clat (msec): min=277, max=2038, avg=1038.66, stdev=319.46 lat (msec): min=277, max=2038, avg=1039.00, stdev=319.47 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 542], 10.00th=[ 651], 20.00th=[ 760], | 30.00th=[ 852], 40.00th=[ 944], 50.00th=[ 1020], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1301], 90.00th=[ 1469], 95.00th=[ 1636], | 99.00th=[ 1888], 99.50th=[ 1955], 99.90th=[ 2022], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 111, per=24.93%, avg=41.64, stdev=18.02, samples=245 iops : min= 1, max= 27, avg= 9.85, stdev= 4.53, samples=245 lat (msec) : 50=0.04%, 100=0.20%, 250=0.23%, 500=31.02%, 750=25.35% lat (msec) : 1000=16.09%, 2000=26.99%, >=2000=0.08% cpu : usr=0.12%, sys=0.60%, ctx=4607, 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=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=175246: Tue Sep 29 22:04:35 2026 read: IOPS=10, BW=40.8KiB/s (41.7kB/s)(5060KiB/124148msec) slat (usec): min=3092, max=94399, avg=16452.71, stdev=9006.66 clat (msec): min=92, max=1644, avg=492.96, stdev=131.48 lat (msec): min=118, max=1652, avg=509.42, stdev=132.64 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 326], 10.00th=[ 355], 20.00th=[ 393], | 30.00th=[ 422], 40.00th=[ 447], 50.00th=[ 468], 60.00th=[ 502], | 70.00th=[ 542], 80.00th=[ 592], 90.00th=[ 659], 95.00th=[ 701], | 99.00th=[ 860], 99.50th=[ 885], 99.90th=[ 1368], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 7, max= 135, per=25.26%, avg=40.67, stdev=19.50, samples=243 iops : min= 1, max= 33, avg= 9.61, stdev= 4.88, samples=243 write: IOPS=10, BW=41.7KiB/s (42.7kB/s)(5180KiB/124148msec); 0 zone resets slat (usec): min=33, max=22234, avg=334.46, stdev=1132.09 clat (msec): min=388, max=2132, avg=1032.87, stdev=307.15 lat (msec): min=388, max=2132, avg=1033.21, stdev=307.17 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 584], 10.00th=[ 651], 20.00th=[ 760], | 30.00th=[ 844], 40.00th=[ 936], 50.00th=[ 1003], 60.00th=[ 1083], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1435], 95.00th=[ 1586], | 99.00th=[ 1854], 99.50th=[ 1955], 99.90th=[ 2056], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 7, max= 109, per=24.77%, avg=41.37, stdev=18.69, samples=244 iops : min= 1, max= 27, avg= 9.79, stdev= 4.68, samples=244 lat (msec) : 100=0.04%, 250=0.23%, 500=30.20%, 750=26.95%, 1000=16.91% lat (msec) : 2000=25.51%, >=2000=0.16% cpu : usr=0.11%, sys=0.62%, ctx=4581, 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=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=161KiB/s (165kB/s), 39.0KiB/s-40.8KiB/s (40.9kB/s-41.7kB/s), io=19.6MiB (20.5MB), run=124148-124622msec WRITE: bw=168KiB/s (172kB/s), 41.7KiB/s-42.3KiB/s (42.7kB/s-43.3kB/s), io=20.4MiB (21.4MB), run=124148-124622msec 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=175271: Tue Sep 29 22:04:46 2026 read: IOPS=1, BW=62.9MiB/s (65.9MB/s)(40.0MiB/636msec) slat (nsec): min=21339k, max=21339k, avg=21339259.00, stdev= 0.00 clat (nsec): min=591988k, max=591988k, avg=591988152.00, stdev= 0.00 lat (nsec): min=613333k, max=613333k, avg=613332975.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 592], 80.00th=[ 592], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] lat (msec) : 750=100.00% cpu : usr=0.31%, sys=2.52%, 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=62.9MiB/s (65.9MB/s), 62.9MiB/s-62.9MiB/s (65.9MB/s-65.9MB/s), io=40.0MiB (41.9MB), run=636-636msec 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