== sanity test 398c: run fio to test AIO ================= 18:24:00 (1787610240) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.688788 s, 60.9 MB/s osc.lustre-OST0000-osc-ffff9243ef5be000.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=175559: Mon Aug 24 18:27:08 2026 write: IOPS=14, BW=57.8KiB/s (59.2kB/s)(10.0MiB/177245msec); 0 zone resets slat (usec): min=28, max=25309, avg=207.45, stdev=903.51 clat (msec): min=197, max=2852, avg=1107.14, stdev=302.17 lat (msec): min=197, max=2852, avg=1107.35, stdev=302.19 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 676], 10.00th=[ 776], 20.00th=[ 877], | 30.00th=[ 953], 40.00th=[ 1011], 50.00th=[ 1070], 60.00th=[ 1150], | 70.00th=[ 1234], 80.00th=[ 1334], 90.00th=[ 1485], 95.00th=[ 1603], | 99.00th=[ 1938], 99.50th=[ 2333], 99.90th=[ 2769], 99.95th=[ 2836], | 99.99th=[ 2836] bw ( KiB/s): min= 7, max= 128, per=25.40%, avg=58.68, stdev=27.96, samples=343 iops : min= 1, max= 32, avg=14.21, stdev= 7.02, samples=343 lat (msec) : 250=0.62%, 500=1.25%, 750=6.17%, 1000=30.35%, 2000=60.82% lat (msec) : >=2000=0.78% cpu : usr=0.04%, sys=0.20%, ctx=1558, majf=0, minf=8 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=175560: Mon Aug 24 18:27:08 2026 write: IOPS=14, BW=57.8KiB/s (59.2kB/s)(10.0MiB/177238msec); 0 zone resets slat (usec): min=27, max=12775, avg=212.72, stdev=737.77 clat (msec): min=406, max=2784, avg=1106.48, stdev=299.45 lat (msec): min=406, max=2785, avg=1106.69, stdev=299.47 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 667], 10.00th=[ 768], 20.00th=[ 869], | 30.00th=[ 936], 40.00th=[ 1003], 50.00th=[ 1070], 60.00th=[ 1150], | 70.00th=[ 1217], 80.00th=[ 1334], 90.00th=[ 1485], 95.00th=[ 1586], | 99.00th=[ 1972], 99.50th=[ 2265], 99.90th=[ 2769], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min= 7, max= 128, per=25.72%, avg=59.41, stdev=29.80, samples=339 iops : min= 1, max= 32, avg=14.39, stdev= 7.44, samples=339 lat (msec) : 500=0.78%, 750=7.89%, 1000=30.98%, 2000=59.38%, >=2000=0.98% cpu : usr=0.04%, sys=0.19%, ctx=1545, 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=175561: Mon Aug 24 18:27:08 2026 write: IOPS=14, BW=57.8KiB/s (59.2kB/s)(10.0MiB/177192msec); 0 zone resets slat (usec): min=27, max=19980, avg=213.92, stdev=914.34 clat (msec): min=412, max=2762, avg=1106.13, stdev=301.49 lat (msec): min=412, max=2762, avg=1106.34, stdev=301.51 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 676], 10.00th=[ 751], 20.00th=[ 877], | 30.00th=[ 944], 40.00th=[ 1003], 50.00th=[ 1070], 60.00th=[ 1150], | 70.00th=[ 1217], 80.00th=[ 1334], 90.00th=[ 1502], 95.00th=[ 1620], | 99.00th=[ 2005], 99.50th=[ 2333], 99.90th=[ 2668], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min= 7, max= 128, per=25.41%, avg=58.69, stdev=26.43, samples=343 iops : min= 1, max= 32, avg=14.21, stdev= 6.59, samples=343 lat (msec) : 500=0.86%, 750=9.10%, 1000=29.65%, 2000=59.38%, >=2000=1.02% cpu : usr=0.03%, sys=0.19%, ctx=1587, majf=0, minf=8 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=175562: Mon Aug 24 18:27:08 2026 write: IOPS=14, BW=57.9KiB/s (59.3kB/s)(10.0MiB/176843msec); 0 zone resets slat (usec): min=28, max=25108, avg=242.28, stdev=988.73 clat (msec): min=63, max=2813, avg=1104.06, stdev=307.34 lat (msec): min=64, max=2813, avg=1104.31, stdev=307.34 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 667], 10.00th=[ 760], 20.00th=[ 869], | 30.00th=[ 944], 40.00th=[ 1011], 50.00th=[ 1083], 60.00th=[ 1150], | 70.00th=[ 1234], 80.00th=[ 1334], 90.00th=[ 1469], 95.00th=[ 1603], | 99.00th=[ 1888], 99.50th=[ 2433], 99.90th=[ 2702], 99.95th=[ 2802], | 99.99th=[ 2802] bw ( KiB/s): min= 7, max= 135, per=25.17%, avg=58.15, stdev=25.52, samples=346 iops : min= 1, max= 33, avg=14.08, stdev= 6.41, samples=346 lat (msec) : 100=0.12%, 250=0.55%, 500=1.17%, 750=7.03%, 1000=29.73% lat (msec) : 2000=60.66%, >=2000=0.74% cpu : usr=0.03%, sys=0.23%, ctx=1727, 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=231KiB/s (237kB/s), 57.8KiB/s-57.9KiB/s (59.2kB/s-59.3kB/s), io=40.0MiB (41.9MB), run=176843-177245msec 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=175598: Mon Aug 24 18:29:09 2026 read: IOPS=11, BW=45.7KiB/s (46.8kB/s)(5048KiB/110411msec) slat (usec): min=35, max=56914, avg=13708.40, stdev=7705.53 clat (msec): min=56, max=1372, avg=423.94, stdev=123.83 lat (msec): min=66, max=1388, avg=437.66, stdev=125.30 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 271], 10.00th=[ 300], 20.00th=[ 334], | 30.00th=[ 359], 40.00th=[ 380], 50.00th=[ 405], 60.00th=[ 435], | 70.00th=[ 464], 80.00th=[ 514], 90.00th=[ 567], 95.00th=[ 634], | 99.00th=[ 726], 99.50th=[ 978], 99.90th=[ 1351], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 7, max= 120, per=25.57%, avg=46.02, stdev=21.92, samples=215 iops : min= 1, max= 30, avg=11.08, stdev= 5.51, samples=215 write: IOPS=11, BW=47.0KiB/s (48.2kB/s)(5192KiB/110411msec); 0 zone resets slat (usec): min=29, max=11116, avg=194.43, stdev=586.88 clat (msec): min=178, max=2063, avg=934.30, stdev=260.25 lat (msec): min=178, max=2063, avg=934.49, stdev=260.24 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 527], 10.00th=[ 634], 20.00th=[ 726], | 30.00th=[ 785], 40.00th=[ 844], 50.00th=[ 911], 60.00th=[ 978], | 70.00th=[ 1053], 80.00th=[ 1150], 90.00th=[ 1250], 95.00th=[ 1368], | 99.00th=[ 1821], 99.50th=[ 1854], 99.90th=[ 1972], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 7, max= 112, per=25.09%, avg=46.91, stdev=19.49, samples=217 iops : min= 1, max= 28, avg=11.30, stdev= 4.92, samples=217 lat (msec) : 100=0.08%, 250=1.84%, 500=38.36%, 750=20.55%, 1000=20.27% lat (msec) : 2000=18.87%, >=2000=0.04% cpu : usr=0.07%, sys=0.46%, ctx=4354, 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=175599: Mon Aug 24 18:29:09 2026 read: IOPS=11, BW=44.7KiB/s (45.8kB/s)(4976KiB/111200msec) slat (usec): min=2299, max=56453, avg=13623.89, stdev=7662.01 clat (msec): min=21, max=841, avg=426.18, stdev=111.13 lat (msec): min=35, max=855, avg=439.81, stdev=112.37 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 279], 10.00th=[ 305], 20.00th=[ 338], | 30.00th=[ 363], 40.00th=[ 384], 50.00th=[ 414], 60.00th=[ 439], | 70.00th=[ 468], 80.00th=[ 518], 90.00th=[ 567], 95.00th=[ 625], | 99.00th=[ 743], 99.50th=[ 760], 99.90th=[ 802], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 112, per=24.74%, avg=44.54, stdev=22.44, samples=219 iops : min= 1, max= 28, avg=10.70, stdev= 5.64, samples=219 write: IOPS=11, BW=47.3KiB/s (48.5kB/s)(5264KiB/111200msec); 0 zone resets slat (usec): min=30, max=11088, avg=211.44, stdev=731.80 clat (msec): min=163, max=1887, avg=933.98, stdev=256.94 lat (msec): min=163, max=1887, avg=934.19, stdev=256.94 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 531], 10.00th=[ 625], 20.00th=[ 735], | 30.00th=[ 793], 40.00th=[ 852], 50.00th=[ 919], 60.00th=[ 995], | 70.00th=[ 1062], 80.00th=[ 1150], 90.00th=[ 1250], 95.00th=[ 1351], | 99.00th=[ 1687], 99.50th=[ 1737], 99.90th=[ 1871], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 8, max= 112, per=25.08%, avg=46.90, stdev=19.88, samples=220 iops : min= 2, max= 28, avg=11.30, stdev= 4.99, samples=220 lat (msec) : 50=0.12%, 100=0.20%, 250=1.25%, 500=37.54%, 750=21.13% lat (msec) : 1000=19.80%, 2000=19.96% cpu : usr=0.09%, sys=0.51%, ctx=4764, 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=175600: Mon Aug 24 18:29:09 2026 read: IOPS=11, BW=44.8KiB/s (45.9kB/s)(4984KiB/111204msec) slat (usec): min=2704, max=71207, avg=13840.85, stdev=8045.04 clat (msec): min=36, max=837, avg=425.57, stdev=114.14 lat (msec): min=46, max=851, avg=439.42, stdev=115.23 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 271], 10.00th=[ 296], 20.00th=[ 334], | 30.00th=[ 363], 40.00th=[ 388], 50.00th=[ 414], 60.00th=[ 443], | 70.00th=[ 472], 80.00th=[ 518], 90.00th=[ 567], 95.00th=[ 634], | 99.00th=[ 743], 99.50th=[ 776], 99.90th=[ 802], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 7, max= 127, per=24.87%, avg=44.76, stdev=22.63, samples=219 iops : min= 1, max= 31, avg=10.76, stdev= 5.68, samples=219 write: IOPS=11, BW=47.3KiB/s (48.4kB/s)(5256KiB/111204msec); 0 zone resets slat (usec): min=31, max=5095, avg=176.23, stdev=409.15 clat (msec): min=157, max=1919, avg=934.80, stdev=247.67 lat (msec): min=157, max=1919, avg=934.97, stdev=247.67 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 550], 10.00th=[ 634], 20.00th=[ 735], | 30.00th=[ 793], 40.00th=[ 852], 50.00th=[ 911], 60.00th=[ 978], | 70.00th=[ 1045], 80.00th=[ 1150], 90.00th=[ 1250], 95.00th=[ 1351], | 99.00th=[ 1620], 99.50th=[ 1838], 99.90th=[ 1854], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 7, max= 110, per=24.99%, avg=46.72, stdev=20.30, samples=220 iops : min= 1, max= 27, avg=11.25, stdev= 5.11, samples=220 lat (msec) : 50=0.20%, 100=0.23%, 250=1.05%, 500=36.95%, 750=21.29% lat (msec) : 1000=21.13%, 2000=19.14% cpu : usr=0.06%, sys=0.47%, ctx=4301, 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=175601: Mon Aug 24 18:29:09 2026 read: IOPS=11, BW=45.5KiB/s (46.6kB/s)(5060KiB/111143msec) slat (usec): min=2529, max=60023, avg=13554.64, stdev=8055.01 clat (msec): min=17, max=1316, avg=424.29, stdev=119.11 lat (msec): min=28, max=1335, avg=437.85, stdev=120.32 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 268], 10.00th=[ 300], 20.00th=[ 334], | 30.00th=[ 359], 40.00th=[ 380], 50.00th=[ 409], 60.00th=[ 439], | 70.00th=[ 464], 80.00th=[ 510], 90.00th=[ 567], 95.00th=[ 634], | 99.00th=[ 768], 99.50th=[ 827], 99.90th=[ 1250], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 7, max= 127, per=25.65%, avg=46.18, stdev=21.62, samples=215 iops : min= 1, max= 31, avg=11.11, stdev= 5.42, samples=215 write: IOPS=11, BW=46.6KiB/s (47.7kB/s)(5180KiB/111143msec); 0 zone resets slat (usec): min=32, max=10314, avg=234.92, stdev=730.33 clat (msec): min=113, max=2024, avg=942.72, stdev=257.08 lat (msec): min=114, max=2024, avg=942.96, stdev=257.07 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 558], 10.00th=[ 634], 20.00th=[ 735], | 30.00th=[ 802], 40.00th=[ 860], 50.00th=[ 927], 60.00th=[ 986], | 70.00th=[ 1062], 80.00th=[ 1150], 90.00th=[ 1267], 95.00th=[ 1385], | 99.00th=[ 1737], 99.50th=[ 1821], 99.90th=[ 1888], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 103, per=24.90%, avg=46.57, stdev=20.16, samples=218 iops : min= 1, max= 25, avg=11.22, stdev= 5.09, samples=218 lat (msec) : 20=0.04%, 50=0.04%, 100=0.16%, 250=1.29%, 500=38.05% lat (msec) : 750=20.82%, 1000=20.23%, 2000=19.34%, >=2000=0.04% cpu : usr=0.08%, sys=0.48%, ctx=4647, 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=180KiB/s (185kB/s), 44.7KiB/s-45.7KiB/s (45.8kB/s-46.8kB/s), io=19.6MiB (20.5MB), run=110411-111204msec WRITE: bw=188KiB/s (192kB/s), 46.6KiB/s-47.3KiB/s (47.7kB/s-48.5kB/s), io=20.4MiB (21.4MB), run=110411-111204msec 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=175623: Mon Aug 24 18:29:18 2026 read: IOPS=2, BW=87.7MiB/s (91.0MB/s)(40.0MiB/456msec) slat (nsec): min=26850k, max=26850k, avg=26850391.00, stdev= 0.00 clat (nsec): min=415773k, max=415773k, avg=415773037.00, stdev= 0.00 lat (nsec): min=442629k, max=442629k, avg=442628838.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] lat (msec) : 500=100.00% cpu : usr=0.22%, sys=2.64%, ctx=13, 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=87.7MiB/s (91.0MB/s), 87.7MiB/s-87.7MiB/s (91.0MB/s-91.0MB/s), io=40.0MiB (41.9MB), run=456-456msec 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