== sanity test 398c: run fio to test AIO ================= 19:41:56 (1787701316) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.377572 s, 111 MB/s osc.lustre-OST0000-osc-ffff99cfc8bbd800.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=146381: Tue Aug 25 19:44:19 2026 write: IOPS=18, BW=75.8KiB/s (77.6kB/s)(10.0MiB/135118msec); 0 zone resets slat (usec): min=28, max=12858, avg=181.52, stdev=589.45 clat (msec): min=306, max=1543, avg=843.58, stdev=182.84 lat (msec): min=306, max=1544, avg=843.76, stdev=182.83 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 535], 10.00th=[ 600], 20.00th=[ 701], | 30.00th=[ 751], 40.00th=[ 810], 50.00th=[ 852], 60.00th=[ 894], | 70.00th=[ 936], 80.00th=[ 986], 90.00th=[ 1053], 95.00th=[ 1133], | 99.00th=[ 1318], 99.50th=[ 1351], 99.90th=[ 1502], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 8, max= 247, per=25.06%, avg=75.93, stdev=31.96, samples=266 iops : min= 2, max= 61, avg=18.58, stdev= 7.96, samples=266 lat (msec) : 500=3.36%, 750=27.03%, 1000=51.88%, 2000=17.73% cpu : usr=0.04%, sys=0.22%, ctx=1640, 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=146382: Tue Aug 25 19:44:19 2026 write: IOPS=18, BW=75.9KiB/s (77.7kB/s)(10.0MiB/134948msec); 0 zone resets slat (usec): min=28, max=14490, avg=170.86, stdev=593.70 clat (msec): min=89, max=1459, avg=842.91, stdev=186.33 lat (msec): min=90, max=1459, avg=843.08, stdev=186.32 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 542], 10.00th=[ 609], 20.00th=[ 693], | 30.00th=[ 751], 40.00th=[ 802], 50.00th=[ 844], 60.00th=[ 894], | 70.00th=[ 944], 80.00th=[ 995], 90.00th=[ 1062], 95.00th=[ 1133], | 99.00th=[ 1301], 99.50th=[ 1351], 99.90th=[ 1401], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 7, max= 247, per=25.05%, avg=75.91, stdev=33.40, samples=266 iops : min= 1, max= 61, avg=18.57, stdev= 8.34, samples=266 lat (msec) : 100=0.04%, 250=0.59%, 500=2.19%, 750=26.72%, 1000=51.60% lat (msec) : 2000=18.87% cpu : usr=0.04%, sys=0.22%, ctx=1658, 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=146383: Tue Aug 25 19:44:19 2026 write: IOPS=18, BW=75.9KiB/s (77.7kB/s)(10.0MiB/134988msec); 0 zone resets slat (usec): min=27, max=6936, avg=171.60, stdev=469.87 clat (msec): min=210, max=1502, avg=842.85, stdev=180.43 lat (msec): min=210, max=1502, avg=843.02, stdev=180.42 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 542], 10.00th=[ 617], 20.00th=[ 693], | 30.00th=[ 751], 40.00th=[ 810], 50.00th=[ 852], 60.00th=[ 894], | 70.00th=[ 936], 80.00th=[ 978], 90.00th=[ 1045], 95.00th=[ 1133], | 99.00th=[ 1284], 99.50th=[ 1334], 99.90th=[ 1401], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 7, max= 136, per=25.93%, avg=78.56, stdev=29.88, samples=257 iops : min= 1, max= 34, avg=19.23, stdev= 7.50, samples=257 lat (msec) : 250=0.62%, 500=3.01%, 750=25.70%, 1000=54.65%, 2000=16.02% cpu : usr=0.05%, sys=0.22%, ctx=1609, 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=146384: Tue Aug 25 19:44:19 2026 write: IOPS=18, BW=75.8KiB/s (77.6kB/s)(10.0MiB/135089msec); 0 zone resets slat (usec): min=24, max=11499, avg=204.88, stdev=610.99 clat (msec): min=102, max=1507, avg=843.36, stdev=180.34 lat (msec): min=102, max=1507, avg=843.57, stdev=180.32 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 542], 10.00th=[ 609], 20.00th=[ 693], | 30.00th=[ 751], 40.00th=[ 810], 50.00th=[ 844], 60.00th=[ 894], | 70.00th=[ 944], 80.00th=[ 986], 90.00th=[ 1062], 95.00th=[ 1133], | 99.00th=[ 1301], 99.50th=[ 1351], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1502] bw ( KiB/s): min= 7, max= 136, per=24.77%, avg=75.07, stdev=24.25, samples=269 iops : min= 1, max= 34, avg=18.36, stdev= 6.04, samples=269 lat (msec) : 250=0.04%, 500=3.16%, 750=26.02%, 1000=53.71%, 2000=17.07% cpu : usr=0.05%, sys=0.24%, ctx=2141, 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 Run status group 0 (all jobs): WRITE: bw=303KiB/s (310kB/s), 75.8KiB/s-75.9KiB/s (77.6kB/s-77.7kB/s), io=40.0MiB (41.9MB), run=134948-135118msec 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=146413: Tue Aug 25 19:46:01 2026 read: IOPS=13, BW=53.8KiB/s (55.1kB/s)(5048KiB/93809msec) slat (usec): min=2621, max=41961, avg=11915.23, stdev=5997.13 clat (msec): min=49, max=666, avg=365.30, stdev=76.27 lat (msec): min=60, max=672, avg=377.23, stdev=76.87 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 253], 10.00th=[ 275], 20.00th=[ 300], | 30.00th=[ 326], 40.00th=[ 342], 50.00th=[ 359], 60.00th=[ 380], | 70.00th=[ 401], 80.00th=[ 430], 90.00th=[ 468], 95.00th=[ 498], | 99.00th=[ 558], 99.50th=[ 609], 99.90th=[ 642], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 7, max= 111, per=25.05%, avg=53.35, stdev=19.94, samples=186 iops : min= 1, max= 27, avg=12.89, stdev= 5.01, samples=186 write: IOPS=13, BW=55.3KiB/s (56.7kB/s)(5192KiB/93809msec); 0 zone resets slat (usec): min=28, max=10260, avg=238.74, stdev=683.01 clat (msec): min=222, max=1348, avg=786.16, stdev=182.94 lat (msec): min=222, max=1348, avg=786.41, stdev=182.94 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 510], 10.00th=[ 567], 20.00th=[ 634], | 30.00th=[ 684], 40.00th=[ 726], 50.00th=[ 768], 60.00th=[ 818], | 70.00th=[ 877], 80.00th=[ 944], 90.00th=[ 1045], 95.00th=[ 1116], | 99.00th=[ 1234], 99.50th=[ 1267], 99.90th=[ 1334], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 15, max= 111, per=24.66%, avg=54.74, stdev=18.79, samples=186 iops : min= 3, max= 27, avg=13.24, stdev= 4.77, samples=186 lat (msec) : 50=0.04%, 100=0.16%, 250=1.99%, 500=47.15%, 750=22.50% lat (msec) : 1000=21.64%, 2000=6.52% cpu : usr=0.10%, sys=0.60%, ctx=4149, 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=146414: Tue Aug 25 19:46:01 2026 read: IOPS=13, BW=53.0KiB/s (54.3kB/s)(4976KiB/93798msec) slat (usec): min=52, max=45905, avg=11890.78, stdev=6253.56 clat (msec): min=16, max=1035, avg=362.70, stdev=87.37 lat (msec): min=16, max=1048, avg=374.60, stdev=88.06 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 247], 10.00th=[ 271], 20.00th=[ 296], | 30.00th=[ 326], 40.00th=[ 342], 50.00th=[ 359], 60.00th=[ 380], | 70.00th=[ 401], 80.00th=[ 426], 90.00th=[ 460], 95.00th=[ 493], | 99.00th=[ 575], 99.50th=[ 659], 99.90th=[ 902], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 15, max= 104, per=24.70%, avg=52.61, stdev=21.46, samples=186 iops : min= 3, max= 26, avg=12.70, stdev= 5.39, samples=186 write: IOPS=14, BW=56.1KiB/s (57.5kB/s)(5264KiB/93798msec); 0 zone resets slat (usec): min=29, max=13231, avg=218.03, stdev=610.64 clat (msec): min=138, max=1606, avg=785.07, stdev=197.42 lat (msec): min=138, max=1606, avg=785.29, stdev=197.43 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 502], 10.00th=[ 558], 20.00th=[ 642], | 30.00th=[ 684], 40.00th=[ 726], 50.00th=[ 768], 60.00th=[ 810], | 70.00th=[ 869], 80.00th=[ 936], 90.00th=[ 1045], 95.00th=[ 1150], | 99.00th=[ 1284], 99.50th=[ 1318], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 7, max= 119, per=24.98%, avg=55.46, stdev=20.99, samples=186 iops : min= 1, max= 29, avg=13.42, stdev= 5.31, samples=186 lat (msec) : 20=0.16%, 50=0.12%, 100=0.20%, 250=2.81%, 500=45.74% lat (msec) : 750=22.62%, 1000=21.56%, 2000=6.80% cpu : usr=0.07%, sys=0.55%, ctx=4592, 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=146415: Tue Aug 25 19:46:01 2026 read: IOPS=13, BW=53.1KiB/s (54.4kB/s)(4984KiB/93805msec) slat (usec): min=2335, max=43427, avg=11871.51, stdev=6047.57 clat (msec): min=8, max=684, avg=363.27, stdev=82.88 lat (msec): min=14, max=690, avg=375.15, stdev=83.28 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 249], 10.00th=[ 271], 20.00th=[ 300], | 30.00th=[ 321], 40.00th=[ 342], 50.00th=[ 359], 60.00th=[ 380], | 70.00th=[ 401], 80.00th=[ 426], 90.00th=[ 464], 95.00th=[ 498], | 99.00th=[ 592], 99.50th=[ 609], 99.90th=[ 667], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 7, max= 151, per=24.93%, avg=53.10, stdev=23.53, samples=185 iops : min= 1, max= 37, avg=12.83, stdev= 5.87, samples=185 write: IOPS=14, BW=56.0KiB/s (57.4kB/s)(5256KiB/93805msec); 0 zone resets slat (usec): min=29, max=9415, avg=243.48, stdev=653.27 clat (msec): min=204, max=1348, avg=783.76, stdev=190.07 lat (msec): min=204, max=1349, avg=784.01, stdev=190.06 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 498], 10.00th=[ 550], 20.00th=[ 634], | 30.00th=[ 684], 40.00th=[ 726], 50.00th=[ 768], 60.00th=[ 818], | 70.00th=[ 869], 80.00th=[ 927], 90.00th=[ 1045], 95.00th=[ 1150], | 99.00th=[ 1267], 99.50th=[ 1284], 99.90th=[ 1334], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 112, per=25.02%, avg=55.55, stdev=21.75, samples=185 iops : min= 1, max= 28, avg=13.44, stdev= 5.47, samples=185 lat (msec) : 10=0.04%, 100=0.55%, 250=2.38%, 500=45.90%, 750=22.89% lat (msec) : 1000=21.05%, 2000=7.19% cpu : usr=0.09%, sys=0.59%, ctx=4107, 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=146416: Tue Aug 25 19:46:01 2026 read: IOPS=13, BW=54.1KiB/s (55.3kB/s)(5060KiB/93614msec) slat (usec): min=2435, max=45186, avg=11812.93, stdev=6299.20 clat (msec): min=14, max=937, avg=363.05, stdev=84.45 lat (msec): min=21, max=950, avg=374.87, stdev=84.90 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 251], 10.00th=[ 271], 20.00th=[ 300], | 30.00th=[ 321], 40.00th=[ 342], 50.00th=[ 359], 60.00th=[ 380], | 70.00th=[ 401], 80.00th=[ 426], 90.00th=[ 464], 95.00th=[ 498], | 99.00th=[ 575], 99.50th=[ 600], 99.90th=[ 927], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 120, per=25.43%, avg=54.17, stdev=21.55, samples=184 iops : min= 1, max= 30, avg=13.10, stdev= 5.40, samples=184 write: IOPS=13, BW=55.3KiB/s (56.7kB/s)(5180KiB/93614msec); 0 zone resets slat (usec): min=32, max=18196, avg=245.37, stdev=808.47 clat (msec): min=180, max=1493, avg=788.11, stdev=192.19 lat (msec): min=180, max=1493, avg=788.36, stdev=192.20 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 498], 10.00th=[ 558], 20.00th=[ 625], | 30.00th=[ 693], 40.00th=[ 735], 50.00th=[ 776], 60.00th=[ 818], | 70.00th=[ 877], 80.00th=[ 944], 90.00th=[ 1045], 95.00th=[ 1116], | 99.00th=[ 1284], 99.50th=[ 1318], 99.90th=[ 1435], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 8, max= 119, per=24.72%, avg=54.88, stdev=19.17, samples=185 iops : min= 2, max= 29, avg=13.28, stdev= 4.85, samples=185 lat (msec) : 20=0.08%, 50=0.16%, 100=0.16%, 250=2.11%, 500=47.23% lat (msec) : 750=21.84%, 1000=21.84%, 2000=6.60% cpu : usr=0.08%, sys=0.56%, ctx=4156, 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=214KiB/s (219kB/s), 53.0KiB/s-54.1KiB/s (54.3kB/s-55.3kB/s), io=19.6MiB (20.5MB), run=93614-93809msec WRITE: bw=223KiB/s (228kB/s), 55.3KiB/s-56.1KiB/s (56.7kB/s-57.5kB/s), io=20.4MiB (21.4MB), run=93614-93809msec 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=146434: Tue Aug 25 19:46:10 2026 read: IOPS=1, BW=78.7MiB/s (82.6MB/s)(40.0MiB/508msec) slat (nsec): min=32625k, max=32625k, avg=32625341.00, stdev= 0.00 clat (nsec): min=451466k, max=451466k, avg=451465804.00, stdev= 0.00 lat (nsec): min=484096k, max=484096k, avg=484095890.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 451], 10.00th=[ 451], 20.00th=[ 451], | 30.00th=[ 451], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.56%, ctx=24, majf=0, minf=10 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=78.7MiB/s (82.6MB/s), 78.7MiB/s-78.7MiB/s (82.6MB/s-82.6MB/s), io=40.0MiB (41.9MB), run=508-508msec 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