== sanity test 398c: run fio to test AIO ================= 23:45:03 (1788752703) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.523247 s, 80.2 MB/s osc.lustre-OST0000-osc-ffff90567a435000.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=146435: Sun Sep 6 23:47:39 2026 write: IOPS=17, BW=70.4KiB/s (72.1kB/s)(10.0MiB/145415msec); 0 zone resets slat (usec): min=20, max=21128, avg=263.78, stdev=979.25 clat (msec): min=219, max=1669, avg=907.85, stdev=248.12 lat (msec): min=225, max=1670, avg=908.12, stdev=248.15 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 542], 10.00th=[ 617], 20.00th=[ 718], | 30.00th=[ 785], 40.00th=[ 844], 50.00th=[ 902], 60.00th=[ 953], | 70.00th=[ 1020], 80.00th=[ 1116], 90.00th=[ 1234], 95.00th=[ 1334], | 99.00th=[ 1536], 99.50th=[ 1586], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1670] bw ( KiB/s): min= 7, max= 256, per=25.50%, avg=71.66, stdev=32.31, samples=281 iops : min= 1, max= 64, avg=17.40, stdev= 8.12, samples=281 lat (msec) : 250=1.25%, 500=2.66%, 750=21.68%, 1000=41.91%, 2000=32.50% cpu : usr=0.06%, sys=0.30%, ctx=1843, 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=146436: Sun Sep 6 23:47:39 2026 write: IOPS=17, BW=70.4KiB/s (72.1kB/s)(10.0MiB/145526msec); 0 zone resets slat (usec): min=22, max=17994, avg=264.62, stdev=912.93 clat (msec): min=138, max=1641, avg=908.90, stdev=252.35 lat (msec): min=140, max=1641, avg=909.16, stdev=252.30 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 542], 10.00th=[ 617], 20.00th=[ 709], | 30.00th=[ 776], 40.00th=[ 844], 50.00th=[ 894], 60.00th=[ 961], | 70.00th=[ 1028], 80.00th=[ 1099], 90.00th=[ 1234], 95.00th=[ 1368], | 99.00th=[ 1536], 99.50th=[ 1586], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1636] bw ( KiB/s): min= 15, max= 256, per=25.04%, avg=70.37, stdev=32.10, samples=286 iops : min= 3, max= 64, avg=17.07, stdev= 8.06, samples=286 lat (msec) : 250=1.29%, 500=2.27%, 750=21.48%, 1000=40.43%, 2000=34.53% cpu : usr=0.07%, sys=0.33%, ctx=2238, 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=146437: Sun Sep 6 23:47:39 2026 write: IOPS=17, BW=70.4KiB/s (72.1kB/s)(10.0MiB/145523msec); 0 zone resets slat (usec): min=26, max=18713, avg=274.00, stdev=1028.46 clat (msec): min=83, max=1665, avg=908.35, stdev=250.32 lat (msec): min=83, max=1665, avg=908.63, stdev=250.33 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 542], 10.00th=[ 617], 20.00th=[ 718], | 30.00th=[ 785], 40.00th=[ 844], 50.00th=[ 894], 60.00th=[ 961], | 70.00th=[ 1020], 80.00th=[ 1116], 90.00th=[ 1234], 95.00th=[ 1318], | 99.00th=[ 1552], 99.50th=[ 1603], 99.90th=[ 1653], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7, max= 256, per=25.22%, avg=70.86, stdev=36.13, samples=284 iops : min= 1, max= 64, avg=17.20, stdev= 9.08, samples=284 lat (msec) : 100=0.04%, 250=2.50%, 500=1.17%, 750=20.74%, 1000=42.58% lat (msec) : 2000=32.97% cpu : usr=0.07%, sys=0.29%, ctx=2090, 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=146438: Sun Sep 6 23:47:39 2026 write: IOPS=17, BW=70.4KiB/s (72.0kB/s)(10.0MiB/145547msec); 0 zone resets slat (usec): min=23, max=18383, avg=269.15, stdev=925.74 clat (msec): min=210, max=1673, avg=908.42, stdev=245.97 lat (msec): min=210, max=1673, avg=908.70, stdev=245.99 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 550], 10.00th=[ 617], 20.00th=[ 718], | 30.00th=[ 785], 40.00th=[ 844], 50.00th=[ 902], 60.00th=[ 969], | 70.00th=[ 1028], 80.00th=[ 1099], 90.00th=[ 1217], 95.00th=[ 1334], | 99.00th=[ 1502], 99.50th=[ 1569], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7, max= 256, per=24.77%, avg=69.61, stdev=29.62, samples=289 iops : min= 1, max= 64, avg=16.88, stdev= 7.48, samples=289 lat (msec) : 250=1.72%, 500=1.48%, 750=21.60%, 1000=40.51%, 2000=34.69% cpu : usr=0.07%, sys=0.29%, ctx=1865, 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=281KiB/s (288kB/s), 70.4KiB/s-70.4KiB/s (72.0kB/s-72.1kB/s), io=40.0MiB (41.9MB), run=145415-145547msec 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=146468: Sun Sep 6 23:49:26 2026 read: IOPS=12, BW=50.7KiB/s (51.9kB/s)(5048KiB/99599msec) slat (usec): min=2779, max=57039, avg=14330.82, stdev=8155.72 clat (msec): min=57, max=1027, avg=394.34, stdev=101.40 lat (msec): min=63, max=1037, avg=408.68, stdev=102.73 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 253], 10.00th=[ 284], 20.00th=[ 313], | 30.00th=[ 334], 40.00th=[ 359], 50.00th=[ 380], 60.00th=[ 409], | 70.00th=[ 439], 80.00th=[ 472], 90.00th=[ 523], 95.00th=[ 575], | 99.00th=[ 676], 99.50th=[ 735], 99.90th=[ 902], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 151, per=24.99%, avg=50.23, stdev=23.55, samples=197 iops : min= 1, max= 37, avg=12.02, stdev= 5.91, samples=197 write: IOPS=13, BW=52.1KiB/s (53.4kB/s)(5192KiB/99599msec); 0 zone resets slat (usec): min=33, max=33187, avg=363.32, stdev=1367.43 clat (msec): min=319, max=1658, avg=827.52, stdev=215.31 lat (msec): min=319, max=1659, avg=827.88, stdev=215.29 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 518], 10.00th=[ 575], 20.00th=[ 642], | 30.00th=[ 701], 40.00th=[ 751], 50.00th=[ 810], 60.00th=[ 860], | 70.00th=[ 919], 80.00th=[ 995], 90.00th=[ 1099], 95.00th=[ 1217], | 99.00th=[ 1435], 99.50th=[ 1502], 99.90th=[ 1636], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 6, max= 127, per=24.65%, avg=51.53, stdev=21.08, samples=197 iops : min= 1, max= 31, avg=12.35, stdev= 5.30, samples=197 lat (msec) : 100=0.08%, 250=2.15%, 500=41.91%, 750=24.77%, 1000=21.05% lat (msec) : 2000=10.04% cpu : usr=0.12%, sys=0.80%, ctx=4899, 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=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=146469: Sun Sep 6 23:49:26 2026 read: IOPS=12, BW=49.0KiB/s (51.2kB/s)(4976KiB/99599msec) slat (msec): min=3, max=384, avg=14.95, stdev=16.25 clat (msec): min=28, max=1110, avg=394.94, stdev=110.59 lat (msec): min=37, max=1118, avg=409.91, stdev=111.46 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 251], 10.00th=[ 284], 20.00th=[ 313], | 30.00th=[ 334], 40.00th=[ 355], 50.00th=[ 380], 60.00th=[ 401], | 70.00th=[ 435], 80.00th=[ 477], 90.00th=[ 531], 95.00th=[ 592], | 99.00th=[ 693], 99.50th=[ 844], 99.90th=[ 1099], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 120, per=24.62%, avg=49.48, stdev=22.11, samples=197 iops : min= 1, max= 30, avg=11.84, stdev= 5.56, samples=197 write: IOPS=13, BW=52.9KiB/s (54.1kB/s)(5264KiB/99599msec); 0 zone resets slat (usec): min=26, max=12750, avg=344.57, stdev=900.43 clat (msec): min=300, max=1937, avg=821.29, stdev=213.30 lat (msec): min=300, max=1937, avg=821.63, stdev=213.29 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 514], 10.00th=[ 567], 20.00th=[ 642], | 30.00th=[ 693], 40.00th=[ 751], 50.00th=[ 810], 60.00th=[ 869], | 70.00th=[ 919], 80.00th=[ 986], 90.00th=[ 1099], 95.00th=[ 1183], | 99.00th=[ 1385], 99.50th=[ 1552], 99.90th=[ 1720], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 127, per=25.05%, avg=52.36, stdev=20.72, samples=196 iops : min= 1, max= 31, avg=12.56, stdev= 5.19, samples=196 lat (msec) : 50=0.12%, 100=0.12%, 250=2.27%, 500=40.98%, 750=25.16% lat (msec) : 1000=21.88%, 2000=9.49% cpu : usr=0.11%, sys=0.86%, ctx=4699, 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=146470: Sun Sep 6 23:49:26 2026 read: IOPS=12, BW=50.0KiB/s (51.2kB/s)(4984KiB/99597msec) slat (usec): min=40, max=57072, avg=14266.34, stdev=7861.50 clat (msec): min=15, max=846, avg=390.86, stdev=107.73 lat (msec): min=21, max=902, avg=405.14, stdev=109.05 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 245], 10.00th=[ 268], 20.00th=[ 305], | 30.00th=[ 330], 40.00th=[ 355], 50.00th=[ 380], 60.00th=[ 405], | 70.00th=[ 439], 80.00th=[ 481], 90.00th=[ 535], 95.00th=[ 584], | 99.00th=[ 659], 99.50th=[ 676], 99.90th=[ 827], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 135, per=25.12%, avg=50.49, stdev=22.72, samples=194 iops : min= 1, max= 33, avg=12.09, stdev= 5.69, samples=194 write: IOPS=13, BW=52.8KiB/s (54.0kB/s)(5256KiB/99597msec); 0 zone resets slat (usec): min=26, max=16316, avg=339.97, stdev=936.42 clat (msec): min=97, max=1710, avg=827.32, stdev=217.65 lat (msec): min=97, max=1710, avg=827.67, stdev=217.69 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 510], 10.00th=[ 575], 20.00th=[ 642], | 30.00th=[ 701], 40.00th=[ 760], 50.00th=[ 810], 60.00th=[ 877], | 70.00th=[ 936], 80.00th=[ 995], 90.00th=[ 1099], 95.00th=[ 1200], | 99.00th=[ 1401], 99.50th=[ 1502], 99.90th=[ 1687], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 7, max= 103, per=24.99%, avg=52.22, stdev=19.19, samples=196 iops : min= 1, max= 25, avg=12.52, stdev= 4.83, samples=196 lat (msec) : 20=0.08%, 50=0.16%, 100=0.27%, 250=2.77%, 500=40.23% lat (msec) : 750=24.84%, 1000=21.64%, 2000=10.00% cpu : usr=0.14%, sys=0.83%, ctx=4701, 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=146471: Sun Sep 6 23:49:26 2026 read: IOPS=12, BW=50.8KiB/s (52.0kB/s)(5060KiB/99596msec) slat (usec): min=2519, max=59143, avg=14396.87, stdev=8088.78 clat (msec): min=12, max=740, avg=394.48, stdev=100.85 lat (msec): min=25, max=751, avg=408.89, stdev=101.66 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 253], 10.00th=[ 279], 20.00th=[ 313], | 30.00th=[ 342], 40.00th=[ 363], 50.00th=[ 384], 60.00th=[ 409], | 70.00th=[ 443], 80.00th=[ 485], 90.00th=[ 527], 95.00th=[ 575], | 99.00th=[ 634], 99.50th=[ 676], 99.90th=[ 735], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 7, max= 127, per=25.33%, avg=50.92, stdev=21.83, samples=195 iops : min= 1, max= 31, avg=12.20, stdev= 5.49, samples=195 write: IOPS=13, BW=52.0KiB/s (53.3kB/s)(5180KiB/99596msec); 0 zone resets slat (usec): min=25, max=13314, avg=318.54, stdev=881.03 clat (msec): min=250, max=1692, avg=829.03, stdev=213.03 lat (msec): min=250, max=1692, avg=829.35, stdev=213.08 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 510], 10.00th=[ 575], 20.00th=[ 642], | 30.00th=[ 709], 40.00th=[ 768], 50.00th=[ 818], 60.00th=[ 885], | 70.00th=[ 927], 80.00th=[ 1003], 90.00th=[ 1099], 95.00th=[ 1200], | 99.00th=[ 1401], 99.50th=[ 1536], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 111, per=24.48%, avg=51.16, stdev=19.04, samples=197 iops : min= 1, max= 27, avg=12.26, stdev= 4.76, samples=197 lat (msec) : 20=0.04%, 50=0.20%, 100=0.16%, 250=1.88%, 500=42.03% lat (msec) : 750=23.71%, 1000=21.80%, 2000=10.20% cpu : usr=0.14%, sys=0.81%, ctx=4766, 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=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=201KiB/s (206kB/s), 49.0KiB/s-50.8KiB/s (51.2kB/s-52.0kB/s), io=19.6MiB (20.5MB), run=99596-99599msec WRITE: bw=210KiB/s (215kB/s), 52.0KiB/s-52.9KiB/s (53.3kB/s-54.1kB/s), io=20.4MiB (21.4MB), run=99596-99599msec 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=146490: Sun Sep 6 23:49:37 2026 read: IOPS=2, BW=83.3MiB/s (87.4MB/s)(40.0MiB/480msec) slat (nsec): min=43302k, max=43302k, avg=43301953.00, stdev= 0.00 clat (nsec): min=406100k, max=406100k, avg=406099844.00, stdev= 0.00 lat (nsec): min=449407k, max=449407k, avg=449406822.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 405], 10.00th=[ 405], 20.00th=[ 405], | 30.00th=[ 405], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 405], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 405], 95.00th=[ 405], | 99.00th=[ 405], 99.50th=[ 405], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.92%, ctx=43, 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=83.3MiB/s (87.4MB/s), 83.3MiB/s-83.3MiB/s (87.4MB/s-87.4MB/s), io=40.0MiB (41.9MB), run=480-480msec 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