== sanity test 398c: run fio to test AIO ================= 00:43:15 (1783140195) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.762794 s, 55.0 MB/s osc.lustre-OST0000-osc-ffff9de4c9a8c800.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=145210: Sat Jul 4 00:45:54 2026 write: IOPS=17, BW=70.0KiB/s (71.7kB/s)(10.0MiB/146186msec); 0 zone resets slat (usec): min=35, max=16037, avg=391.49, stdev=1086.49 clat (msec): min=128, max=2172, avg=912.32, stdev=258.09 lat (msec): min=128, max=2172, avg=912.71, stdev=258.13 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 542], 10.00th=[ 625], 20.00th=[ 718], | 30.00th=[ 776], 40.00th=[ 827], 50.00th=[ 877], 60.00th=[ 936], | 70.00th=[ 1003], 80.00th=[ 1099], 90.00th=[ 1250], 95.00th=[ 1351], | 99.00th=[ 1821], 99.50th=[ 1989], 99.90th=[ 2106], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 135, per=25.13%, avg=70.36, stdev=34.39, samples=286 iops : min= 1, max= 33, avg=17.06, stdev= 8.62, samples=286 lat (msec) : 250=0.66%, 500=1.25%, 750=23.63%, 1000=44.45%, 2000=29.61% lat (msec) : >=2000=0.39% cpu : usr=0.06%, sys=0.37%, ctx=2298, 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=145211: Sat Jul 4 00:45:54 2026 write: IOPS=17, BW=70.1KiB/s (71.8kB/s)(10.0MiB/146015msec); 0 zone resets slat (usec): min=37, max=25208, avg=373.14, stdev=1101.27 clat (msec): min=133, max=2170, avg=911.10, stdev=257.23 lat (msec): min=135, max=2170, avg=911.47, stdev=257.28 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 550], 10.00th=[ 634], 20.00th=[ 718], | 30.00th=[ 776], 40.00th=[ 835], 50.00th=[ 877], 60.00th=[ 936], | 70.00th=[ 995], 80.00th=[ 1083], 90.00th=[ 1234], 95.00th=[ 1368], | 99.00th=[ 1703], 99.50th=[ 1938], 99.90th=[ 2106], 99.95th=[ 2106], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 128, per=25.13%, avg=70.36, stdev=29.86, samples=286 iops : min= 1, max= 32, avg=17.05, stdev= 7.50, samples=286 lat (msec) : 250=0.59%, 500=1.29%, 750=24.49%, 1000=44.92%, 2000=28.40% lat (msec) : >=2000=0.31% cpu : usr=0.05%, sys=0.34%, ctx=2074, 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=145212: Sat Jul 4 00:45:54 2026 write: IOPS=17, BW=70.0KiB/s (71.7kB/s)(10.0MiB/146190msec); 0 zone resets slat (usec): min=37, max=18406, avg=370.64, stdev=995.78 clat (msec): min=195, max=2281, avg=912.09, stdev=256.11 lat (msec): min=195, max=2282, avg=912.46, stdev=256.10 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 567], 10.00th=[ 625], 20.00th=[ 709], | 30.00th=[ 768], 40.00th=[ 827], 50.00th=[ 877], 60.00th=[ 936], | 70.00th=[ 1003], 80.00th=[ 1099], 90.00th=[ 1234], 95.00th=[ 1351], | 99.00th=[ 1754], 99.50th=[ 1821], 99.90th=[ 2165], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 8, max= 135, per=25.13%, avg=70.37, stdev=31.36, samples=286 iops : min= 2, max= 33, avg=17.06, stdev= 7.87, samples=286 lat (msec) : 250=0.04%, 500=2.42%, 750=24.38%, 1000=42.23%, 2000=30.66% lat (msec) : >=2000=0.27% cpu : usr=0.07%, sys=0.37%, ctx=2386, 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=145213: Sat Jul 4 00:45:54 2026 write: IOPS=17, BW=70.2KiB/s (71.9kB/s)(10.0MiB/145915msec); 0 zone resets slat (usec): min=35, max=21314, avg=383.70, stdev=1018.86 clat (msec): min=133, max=2137, avg=911.27, stdev=254.91 lat (msec): min=133, max=2137, avg=911.66, stdev=254.93 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 558], 10.00th=[ 634], 20.00th=[ 709], | 30.00th=[ 776], 40.00th=[ 835], 50.00th=[ 877], 60.00th=[ 936], | 70.00th=[ 1011], 80.00th=[ 1099], 90.00th=[ 1234], 95.00th=[ 1351], | 99.00th=[ 1737], 99.50th=[ 1804], 99.90th=[ 2123], 99.95th=[ 2123], | 99.99th=[ 2140] bw ( KiB/s): min= 7, max= 135, per=24.87%, avg=69.63, stdev=30.29, samples=289 iops : min= 1, max= 33, avg=16.87, stdev= 7.60, samples=289 lat (msec) : 250=0.43%, 500=1.91%, 750=23.91%, 1000=43.01%, 2000=30.55% lat (msec) : >=2000=0.20% cpu : usr=0.06%, sys=0.39%, ctx=2321, 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=280KiB/s (287kB/s), 70.0KiB/s-70.2KiB/s (71.7kB/s-71.9kB/s), io=40.0MiB (41.9MB), run=145915-146190msec 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=145244: Sat Jul 4 00:47:42 2026 read: IOPS=12, BW=51.7KiB/s (52.9kB/s)(5048KiB/97691msec) slat (usec): min=2863, max=79878, avg=14712.85, stdev=7909.60 clat (msec): min=11, max=892, avg=375.49, stdev=108.40 lat (msec): min=27, max=898, avg=390.21, stdev=109.87 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 234], 10.00th=[ 257], 20.00th=[ 292], | 30.00th=[ 317], 40.00th=[ 334], 50.00th=[ 359], 60.00th=[ 388], | 70.00th=[ 422], 80.00th=[ 456], 90.00th=[ 510], 95.00th=[ 567], | 99.00th=[ 709], 99.50th=[ 743], 99.90th=[ 793], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 119, per=25.19%, avg=51.63, stdev=22.37, samples=192 iops : min= 1, max= 29, avg=12.37, stdev= 5.63, samples=192 write: IOPS=13, BW=53.1KiB/s (54.4kB/s)(5192KiB/97691msec); 0 zone resets slat (usec): min=40, max=12375, avg=456.00, stdev=938.13 clat (msec): min=305, max=1874, avg=820.19, stdev=218.19 lat (msec): min=305, max=1875, avg=820.65, stdev=218.19 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 502], 10.00th=[ 558], 20.00th=[ 642], | 30.00th=[ 701], 40.00th=[ 743], 50.00th=[ 793], 60.00th=[ 844], | 70.00th=[ 919], 80.00th=[ 1003], 90.00th=[ 1116], 95.00th=[ 1217], | 99.00th=[ 1385], 99.50th=[ 1620], 99.90th=[ 1787], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 111, per=24.72%, avg=52.65, stdev=19.15, samples=193 iops : min= 1, max= 27, avg=12.63, stdev= 4.85, samples=193 lat (msec) : 20=0.04%, 50=0.20%, 100=0.16%, 250=3.75%, 500=42.11% lat (msec) : 750=23.79%, 1000=19.80%, 2000=10.16% cpu : usr=0.15%, sys=0.98%, ctx=4929, 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=145245: Sat Jul 4 00:47:42 2026 read: IOPS=12, BW=50.9KiB/s (52.1kB/s)(4976KiB/97810msec) slat (usec): min=2670, max=78945, avg=14503.48, stdev=7696.21 clat (msec): min=34, max=776, avg=376.26, stdev=104.63 lat (msec): min=51, max=794, avg=390.77, stdev=106.26 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 232], 10.00th=[ 259], 20.00th=[ 296], | 30.00th=[ 321], 40.00th=[ 338], 50.00th=[ 363], 60.00th=[ 393], | 70.00th=[ 422], 80.00th=[ 456], 90.00th=[ 514], 95.00th=[ 558], | 99.00th=[ 667], 99.50th=[ 701], 99.90th=[ 768], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 7, max= 135, per=24.67%, avg=50.58, stdev=23.09, samples=192 iops : min= 1, max= 33, avg=12.11, stdev= 5.75, samples=192 write: IOPS=13, BW=53.8KiB/s (55.1kB/s)(5264KiB/97810msec); 0 zone resets slat (usec): min=42, max=13838, avg=451.69, stdev=1052.06 clat (msec): min=182, max=1840, avg=816.64, stdev=219.22 lat (msec): min=182, max=1840, avg=817.10, stdev=219.22 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 489], 10.00th=[ 558], 20.00th=[ 634], | 30.00th=[ 693], 40.00th=[ 743], 50.00th=[ 793], 60.00th=[ 844], | 70.00th=[ 911], 80.00th=[ 995], 90.00th=[ 1116], 95.00th=[ 1217], | 99.00th=[ 1368], 99.50th=[ 1519], 99.90th=[ 1787], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 7, max= 112, per=25.03%, avg=53.32, stdev=21.52, samples=193 iops : min= 1, max= 28, avg=12.79, stdev= 5.41, samples=193 lat (msec) : 50=0.16%, 100=0.23%, 250=3.52%, 500=41.41%, 750=24.53% lat (msec) : 1000=20.08%, 2000=10.08% cpu : usr=0.13%, sys=0.95%, ctx=4978, 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=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=145246: Sat Jul 4 00:47:42 2026 read: IOPS=12, BW=50.0KiB/s (52.2kB/s)(4984KiB/97744msec) slat (usec): min=3240, max=52048, avg=14375.36, stdev=7539.47 clat (msec): min=19, max=917, avg=381.53, stdev=109.60 lat (msec): min=31, max=933, avg=395.91, stdev=110.99 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 230], 10.00th=[ 264], 20.00th=[ 296], | 30.00th=[ 321], 40.00th=[ 347], 50.00th=[ 368], 60.00th=[ 397], | 70.00th=[ 430], 80.00th=[ 464], 90.00th=[ 518], 95.00th=[ 584], | 99.00th=[ 701], 99.50th=[ 735], 99.90th=[ 844], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 127, per=25.03%, avg=51.31, stdev=23.24, samples=191 iops : min= 1, max= 31, avg=12.30, stdev= 5.85, samples=191 write: IOPS=13, BW=53.8KiB/s (55.1kB/s)(5256KiB/97744msec); 0 zone resets slat (usec): min=45, max=15070, avg=466.02, stdev=990.23 clat (msec): min=347, max=1867, avg=810.90, stdev=215.45 lat (msec): min=348, max=1867, avg=811.37, stdev=215.46 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 489], 10.00th=[ 550], 20.00th=[ 642], | 30.00th=[ 693], 40.00th=[ 735], 50.00th=[ 785], 60.00th=[ 844], | 70.00th=[ 902], 80.00th=[ 978], 90.00th=[ 1099], 95.00th=[ 1200], | 99.00th=[ 1334], 99.50th=[ 1552], 99.90th=[ 1787], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 127, per=24.99%, avg=53.23, stdev=21.13, samples=193 iops : min= 1, max= 31, avg=12.77, stdev= 5.31, samples=193 lat (msec) : 20=0.04%, 50=0.12%, 100=0.23%, 250=3.32%, 500=41.29% lat (msec) : 750=25.31%, 1000=20.62%, 2000=9.06% cpu : usr=0.14%, sys=0.95%, ctx=4917, 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=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=145247: Sat Jul 4 00:47:42 2026 read: IOPS=12, BW=51.0KiB/s (53.2kB/s)(5060KiB/97389msec) slat (usec): min=90, max=57497, avg=14507.25, stdev=7768.35 clat (msec): min=7, max=967, avg=381.00, stdev=113.06 lat (msec): min=25, max=975, avg=395.52, stdev=114.46 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 239], 10.00th=[ 264], 20.00th=[ 292], | 30.00th=[ 317], 40.00th=[ 338], 50.00th=[ 368], 60.00th=[ 397], | 70.00th=[ 426], 80.00th=[ 468], 90.00th=[ 518], 95.00th=[ 575], | 99.00th=[ 726], 99.50th=[ 760], 99.90th=[ 953], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 7, max= 112, per=25.32%, avg=51.91, stdev=22.75, samples=191 iops : min= 1, max= 28, avg=12.44, stdev= 5.73, samples=191 write: IOPS=13, BW=53.2KiB/s (54.5kB/s)(5180KiB/97389msec); 0 zone resets slat (usec): min=42, max=21110, avg=487.48, stdev=1179.88 clat (msec): min=168, max=1799, avg=815.45, stdev=217.79 lat (msec): min=168, max=1799, avg=815.94, stdev=217.84 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 493], 10.00th=[ 567], 20.00th=[ 642], | 30.00th=[ 701], 40.00th=[ 751], 50.00th=[ 785], 60.00th=[ 844], | 70.00th=[ 902], 80.00th=[ 978], 90.00th=[ 1099], 95.00th=[ 1217], | 99.00th=[ 1368], 99.50th=[ 1401], 99.90th=[ 1770], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 7, max= 104, per=24.98%, avg=53.21, stdev=21.47, samples=191 iops : min= 1, max= 26, avg=12.76, stdev= 5.43, samples=191 lat (msec) : 10=0.04%, 20=0.04%, 50=0.20%, 100=0.20%, 250=3.01% lat (msec) : 500=42.38%, 750=23.63%, 1000=21.02%, 2000=9.49% cpu : usr=0.16%, sys=0.97%, ctx=5180, 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=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=205KiB/s (210kB/s), 50.9KiB/s-51.0KiB/s (52.1kB/s-53.2kB/s), io=19.6MiB (20.5MB), run=97389-97810msec WRITE: bw=214KiB/s (219kB/s), 53.1KiB/s-53.8KiB/s (54.4kB/s-55.1kB/s), io=20.4MiB (21.4MB), run=97389-97810msec 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=145265: Sat Jul 4 00:47:52 2026 read: IOPS=1, BW=62.3MiB/s (65.3MB/s)(40.0MiB/642msec) slat (nsec): min=43460k, max=43460k, avg=43460026.00, stdev= 0.00 clat (nsec): min=585435k, max=585435k, avg=585434916.00, stdev= 0.00 lat (nsec): min=629102k, max=629102k, avg=629101858.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.18%, ctx=5, 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=62.3MiB/s (65.3MB/s), 62.3MiB/s-62.3MiB/s (65.3MB/s-65.3MB/s), io=40.0MiB (41.9MB), run=642-642msec 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