== sanity test 398c: run fio to test AIO ================= 17:10:08 (1775769008) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.57973 s, 72.3 MB/s osc.lustre-OST0000-osc-ffff9c64a5f68800.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=149619: Thu Apr 9 17:13:09 2026 write: IOPS=15, BW=60.7KiB/s (62.2kB/s)(10.0MiB/168671msec); 0 zone resets slat (usec): min=37, max=14851, avg=223.81, stdev=656.36 clat (msec): min=351, max=2680, avg=1052.20, stdev=296.48 lat (msec): min=351, max=2680, avg=1052.42, stdev=296.49 clat percentiles (msec): | 1.00th=[ 527], 5.00th=[ 676], 10.00th=[ 743], 20.00th=[ 818], | 30.00th=[ 894], 40.00th=[ 944], 50.00th=[ 1003], 60.00th=[ 1053], | 70.00th=[ 1133], 80.00th=[ 1250], 90.00th=[ 1435], 95.00th=[ 1620], | 99.00th=[ 1989], 99.50th=[ 2299], 99.90th=[ 2635], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 7, max= 176, per=25.24%, avg=61.08, stdev=25.13, samples=330 iops : min= 1, max= 44, avg=14.83, stdev= 6.32, samples=330 lat (msec) : 500=0.98%, 750=9.73%, 1000=38.79%, 2000=49.53%, >=2000=0.98% cpu : usr=0.03%, sys=0.25%, ctx=1596, 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=149620: Thu Apr 9 17:13:09 2026 write: IOPS=15, BW=60.7KiB/s (62.2kB/s)(10.0MiB/168565msec); 0 zone resets slat (usec): min=37, max=19547, avg=244.40, stdev=837.95 clat (msec): min=211, max=2723, avg=1051.91, stdev=301.98 lat (msec): min=211, max=2723, avg=1052.16, stdev=302.01 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 667], 10.00th=[ 743], 20.00th=[ 818], | 30.00th=[ 894], 40.00th=[ 944], 50.00th=[ 1003], 60.00th=[ 1062], | 70.00th=[ 1133], 80.00th=[ 1250], 90.00th=[ 1435], 95.00th=[ 1636], | 99.00th=[ 2089], 99.50th=[ 2400], 99.90th=[ 2601], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 7, max= 128, per=25.31%, avg=61.26, stdev=27.23, samples=329 iops : min= 1, max= 32, avg=14.87, stdev= 6.83, samples=329 lat (msec) : 250=0.23%, 500=0.12%, 750=10.31%, 1000=38.20%, 2000=50.00% lat (msec) : >=2000=1.13% cpu : usr=0.04%, sys=0.24%, ctx=1652, 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=149621: Thu Apr 9 17:13:09 2026 write: IOPS=15, BW=60.9KiB/s (62.4kB/s)(10.0MiB/168017msec); 0 zone resets slat (usec): min=36, max=25211, avg=247.79, stdev=938.40 clat (msec): min=250, max=2720, avg=1049.47, stdev=306.80 lat (msec): min=250, max=2723, avg=1049.72, stdev=306.79 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 642], 10.00th=[ 726], 20.00th=[ 827], | 30.00th=[ 894], 40.00th=[ 944], 50.00th=[ 1003], 60.00th=[ 1053], | 70.00th=[ 1133], 80.00th=[ 1250], 90.00th=[ 1435], 95.00th=[ 1620], | 99.00th=[ 2056], 99.50th=[ 2433], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2735] bw ( KiB/s): min= 7, max= 128, per=25.70%, avg=62.19, stdev=25.35, samples=324 iops : min= 1, max= 32, avg=15.12, stdev= 6.35, samples=324 lat (msec) : 500=0.66%, 750=11.80%, 1000=37.62%, 2000=48.83%, >=2000=1.09% cpu : usr=0.04%, sys=0.25%, ctx=1796, 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=149622: Thu Apr 9 17:13:09 2026 write: IOPS=15, BW=60.8KiB/s (62.2kB/s)(10.0MiB/168470msec); 0 zone resets slat (usec): min=38, max=26295, avg=252.30, stdev=937.78 clat (msec): min=434, max=2622, avg=1051.02, stdev=298.09 lat (msec): min=434, max=2622, avg=1051.28, stdev=298.07 clat percentiles (msec): | 1.00th=[ 531], 5.00th=[ 667], 10.00th=[ 751], 20.00th=[ 818], | 30.00th=[ 885], 40.00th=[ 944], 50.00th=[ 995], 60.00th=[ 1053], | 70.00th=[ 1133], 80.00th=[ 1250], 90.00th=[ 1452], 95.00th=[ 1636], | 99.00th=[ 2039], 99.50th=[ 2299], 99.90th=[ 2601], 99.95th=[ 2601], | 99.99th=[ 2635] bw ( KiB/s): min= 7, max= 128, per=25.24%, avg=61.08, stdev=29.88, samples=330 iops : min= 1, max= 32, avg=14.83, stdev= 7.48, samples=330 lat (msec) : 500=0.74%, 750=9.41%, 1000=40.94%, 2000=47.89%, >=2000=1.02% cpu : usr=0.04%, sys=0.24%, ctx=1717, 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 Run status group 0 (all jobs): WRITE: bw=243KiB/s (249kB/s), 60.7KiB/s-60.9KiB/s (62.2kB/s-62.4kB/s), io=40.0MiB (41.9MB), run=168017-168671msec 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=149657: Thu Apr 9 17:15:07 2026 read: IOPS=11, BW=46.0KiB/s (47.1kB/s)(5048KiB/109738msec) slat (usec): min=2801, max=67538, avg=14806.14, stdev=8112.43 clat (msec): min=23, max=954, avg=425.54, stdev=104.55 lat (msec): min=31, max=960, avg=440.35, stdev=105.39 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 292], 10.00th=[ 317], 20.00th=[ 351], | 30.00th=[ 376], 40.00th=[ 397], 50.00th=[ 418], 60.00th=[ 439], | 70.00th=[ 460], 80.00th=[ 498], 90.00th=[ 550], 95.00th=[ 609], | 99.00th=[ 751], 99.50th=[ 810], 99.90th=[ 877], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 104, per=25.17%, avg=45.80, stdev=20.42, samples=216 iops : min= 1, max= 26, avg=11.00, stdev= 5.15, samples=216 write: IOPS=11, BW=47.3KiB/s (48.4kB/s)(5192KiB/109738msec); 0 zone resets slat (usec): min=44, max=23997, avg=328.91, stdev=1084.94 clat (msec): min=366, max=1732, avg=920.67, stdev=216.11 lat (msec): min=366, max=1732, avg=921.01, stdev=216.10 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 584], 10.00th=[ 642], 20.00th=[ 735], | 30.00th=[ 793], 40.00th=[ 860], 50.00th=[ 911], 60.00th=[ 961], | 70.00th=[ 1020], 80.00th=[ 1099], 90.00th=[ 1217], 95.00th=[ 1301], | 99.00th=[ 1485], 99.50th=[ 1536], 99.90th=[ 1703], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 7, max= 111, per=24.83%, avg=47.18, stdev=18.98, samples=216 iops : min= 1, max= 27, avg=11.33, stdev= 4.72, samples=216 lat (msec) : 50=0.23%, 100=0.16%, 250=0.55%, 500=39.22%, 750=20.43% lat (msec) : 1000=22.77%, 2000=16.64% cpu : usr=0.09%, sys=0.67%, ctx=4415, 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=149658: Thu Apr 9 17:15:07 2026 read: IOPS=11, BW=45.4KiB/s (46.5kB/s)(4976KiB/109589msec) slat (usec): min=91, max=52025, avg=14753.96, stdev=8048.77 clat (msec): min=15, max=817, avg=425.23, stdev=105.47 lat (msec): min=18, max=826, avg=439.99, stdev=106.79 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 288], 10.00th=[ 313], 20.00th=[ 347], | 30.00th=[ 376], 40.00th=[ 393], 50.00th=[ 418], 60.00th=[ 439], | 70.00th=[ 460], 80.00th=[ 498], 90.00th=[ 558], 95.00th=[ 617], | 99.00th=[ 743], 99.50th=[ 768], 99.90th=[ 810], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 7, max= 128, per=24.89%, avg=45.30, stdev=21.21, samples=215 iops : min= 1, max= 32, avg=10.87, stdev= 5.35, samples=215 write: IOPS=12, BW=48.0KiB/s (49.2kB/s)(5264KiB/109589msec); 0 zone resets slat (usec): min=38, max=33358, avg=326.45, stdev=1257.88 clat (msec): min=158, max=1730, avg=915.01, stdev=224.10 lat (msec): min=159, max=1730, avg=915.34, stdev=224.10 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 575], 10.00th=[ 642], 20.00th=[ 726], | 30.00th=[ 785], 40.00th=[ 852], 50.00th=[ 911], 60.00th=[ 969], | 70.00th=[ 1020], 80.00th=[ 1099], 90.00th=[ 1200], 95.00th=[ 1301], | 99.00th=[ 1452], 99.50th=[ 1569], 99.90th=[ 1720], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 7, max= 95, per=24.93%, avg=47.38, stdev=18.72, samples=218 iops : min= 1, max= 23, avg=11.39, stdev= 4.68, samples=218 lat (msec) : 20=0.12%, 50=0.08%, 100=0.27%, 250=1.05%, 500=38.63% lat (msec) : 750=19.84%, 1000=22.93%, 2000=17.07% cpu : usr=0.09%, sys=0.71%, ctx=4526, 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=149659: Thu Apr 9 17:15:07 2026 read: IOPS=11, BW=45.4KiB/s (46.5kB/s)(4984KiB/109738msec) slat (usec): min=3257, max=51995, avg=14868.88, stdev=8128.26 clat (msec): min=10, max=843, avg=424.58, stdev=104.81 lat (msec): min=16, max=864, avg=439.46, stdev=106.21 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 284], 10.00th=[ 317], 20.00th=[ 351], | 30.00th=[ 376], 40.00th=[ 397], 50.00th=[ 418], 60.00th=[ 439], | 70.00th=[ 460], 80.00th=[ 493], 90.00th=[ 550], 95.00th=[ 617], | 99.00th=[ 735], 99.50th=[ 760], 99.90th=[ 810], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 120, per=24.83%, avg=45.19, stdev=20.71, samples=217 iops : min= 1, max= 30, avg=10.84, stdev= 5.26, samples=217 write: IOPS=11, BW=47.9KiB/s (49.0kB/s)(5256KiB/109738msec); 0 zone resets slat (usec): min=50, max=15333, avg=294.58, stdev=755.82 clat (msec): min=415, max=1698, avg=915.84, stdev=215.94 lat (msec): min=420, max=1698, avg=916.14, stdev=215.92 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 592], 10.00th=[ 642], 20.00th=[ 718], | 30.00th=[ 785], 40.00th=[ 852], 50.00th=[ 911], 60.00th=[ 961], | 70.00th=[ 1020], 80.00th=[ 1099], 90.00th=[ 1217], 95.00th=[ 1284], | 99.00th=[ 1452], 99.50th=[ 1519], 99.90th=[ 1687], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 7, max= 103, per=24.92%, avg=47.35, stdev=18.17, samples=217 iops : min= 1, max= 25, avg=11.38, stdev= 4.51, samples=217 lat (msec) : 20=0.04%, 50=0.20%, 100=0.23%, 250=0.78%, 500=38.98% lat (msec) : 750=20.70%, 1000=22.30%, 2000=16.76% cpu : usr=0.08%, sys=0.66%, ctx=4265, 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=149660: Thu Apr 9 17:15:07 2026 read: IOPS=11, BW=46.2KiB/s (47.3kB/s)(5060KiB/109540msec) slat (usec): min=2478, max=58634, avg=14721.16, stdev=8256.69 clat (msec): min=14, max=856, avg=425.23, stdev=100.80 lat (msec): min=19, max=870, avg=439.96, stdev=101.98 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 292], 10.00th=[ 321], 20.00th=[ 351], | 30.00th=[ 376], 40.00th=[ 393], 50.00th=[ 414], 60.00th=[ 439], | 70.00th=[ 460], 80.00th=[ 493], 90.00th=[ 550], 95.00th=[ 600], | 99.00th=[ 743], 99.50th=[ 760], 99.90th=[ 852], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7, max= 95, per=25.46%, avg=46.35, stdev=19.10, samples=214 iops : min= 1, max= 23, avg=11.12, stdev= 4.82, samples=214 write: IOPS=11, BW=47.3KiB/s (48.4kB/s)(5180KiB/109540msec); 0 zone resets slat (usec): min=58, max=17591, avg=338.65, stdev=977.59 clat (msec): min=403, max=1631, avg=919.55, stdev=215.60 lat (msec): min=404, max=1632, avg=919.89, stdev=215.61 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 592], 10.00th=[ 642], 20.00th=[ 726], | 30.00th=[ 802], 40.00th=[ 852], 50.00th=[ 911], 60.00th=[ 961], | 70.00th=[ 1011], 80.00th=[ 1099], 90.00th=[ 1217], 95.00th=[ 1318], | 99.00th=[ 1452], 99.50th=[ 1536], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 8, max= 104, per=24.87%, avg=47.25, stdev=18.26, samples=215 iops : min= 2, max= 26, avg=11.35, stdev= 4.56, samples=215 lat (msec) : 20=0.04%, 50=0.12%, 100=0.20%, 250=0.47%, 500=40.12% lat (msec) : 750=19.96%, 1000=22.93%, 2000=16.17% cpu : usr=0.09%, sys=0.69%, ctx=4797, 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=183KiB/s (187kB/s), 45.4KiB/s-46.2KiB/s (46.5kB/s-47.3kB/s), io=19.6MiB (20.5MB), run=109540-109738msec WRITE: bw=190KiB/s (195kB/s), 47.3KiB/s-48.0KiB/s (48.4kB/s-49.2kB/s), io=20.4MiB (21.4MB), run=109540-109738msec 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=149681: Thu Apr 9 17:15:20 2026 read: IOPS=1, BW=67.5MiB/s (70.7MB/s)(40.0MiB/593msec) slat (nsec): min=36406k, max=36406k, avg=36405833.00, stdev= 0.00 clat (nsec): min=500795k, max=500795k, avg=500794725.00, stdev= 0.00 lat (nsec): min=537205k, max=537205k, avg=537205077.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[ 502], | 30.00th=[ 502], 40.00th=[ 502], 50.00th=[ 502], 60.00th=[ 502], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 502], 95.00th=[ 502], | 99.00th=[ 502], 99.50th=[ 502], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.03%, ctx=4, majf=0, minf=9 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=67.5MiB/s (70.7MB/s), 67.5MiB/s-67.5MiB/s (70.7MB/s-70.7MB/s), io=40.0MiB (41.9MB), run=593-593msec 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