== sanity test 398c: run fio to test AIO ================= 18:37:55 (1787870275) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.514155 s, 81.6 MB/s osc.lustre-OST0000-osc-ffff88c0384b1000.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=146178: Thu Aug 27 18:40:41 2026 write: IOPS=16, BW=66.3KiB/s (67.9kB/s)(10.0MiB/154427msec); 0 zone resets slat (usec): min=21, max=11259, avg=170.29, stdev=585.31 clat (msec): min=383, max=2468, avg=963.80, stdev=268.58 lat (msec): min=384, max=2469, avg=963.97, stdev=268.58 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 567], 10.00th=[ 659], 20.00th=[ 768], | 30.00th=[ 818], 40.00th=[ 885], 50.00th=[ 936], 60.00th=[ 995], | 70.00th=[ 1053], 80.00th=[ 1150], 90.00th=[ 1301], 95.00th=[ 1435], | 99.00th=[ 1854], 99.50th=[ 2140], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 240, per=25.20%, avg=66.78, stdev=32.94, samples=302 iops : min= 1, max= 60, avg=16.25, stdev= 8.28, samples=302 lat (msec) : 500=2.58%, 750=15.39%, 1000=43.28%, 2000=38.09%, >=2000=0.66% cpu : usr=0.05%, sys=0.19%, ctx=1584, 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=146179: Thu Aug 27 18:40:41 2026 write: IOPS=16, BW=66.3KiB/s (67.9kB/s)(10.0MiB/154346msec); 0 zone resets slat (usec): min=22, max=11925, avg=188.41, stdev=663.86 clat (msec): min=322, max=2491, avg=963.51, stdev=273.44 lat (msec): min=325, max=2491, avg=963.70, stdev=273.42 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 558], 10.00th=[ 642], 20.00th=[ 760], | 30.00th=[ 827], 40.00th=[ 877], 50.00th=[ 936], 60.00th=[ 995], | 70.00th=[ 1062], 80.00th=[ 1150], 90.00th=[ 1318], 95.00th=[ 1435], | 99.00th=[ 1787], 99.50th=[ 2089], 99.90th=[ 2400], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 144, per=25.19%, avg=66.75, stdev=30.71, samples=302 iops : min= 1, max= 36, avg=16.24, stdev= 7.71, samples=302 lat (msec) : 500=2.58%, 750=16.48%, 1000=42.62%, 2000=37.62%, >=2000=0.70% cpu : usr=0.04%, sys=0.19%, ctx=1567, 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=146180: Thu Aug 27 18:40:41 2026 write: IOPS=16, BW=66.3KiB/s (67.9kB/s)(10.0MiB/154349msec); 0 zone resets slat (usec): min=21, max=9133, avg=161.18, stdev=526.35 clat (msec): min=111, max=2468, avg=964.05, stdev=273.95 lat (msec): min=118, max=2468, avg=964.21, stdev=273.94 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 567], 10.00th=[ 651], 20.00th=[ 768], | 30.00th=[ 827], 40.00th=[ 885], 50.00th=[ 936], 60.00th=[ 995], | 70.00th=[ 1062], 80.00th=[ 1150], 90.00th=[ 1301], 95.00th=[ 1435], | 99.00th=[ 1770], 99.50th=[ 2165], 99.90th=[ 2467], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 191, per=25.02%, avg=66.30, stdev=36.66, samples=304 iops : min= 1, max= 47, avg=16.12, stdev= 9.17, samples=304 lat (msec) : 250=0.62%, 500=2.42%, 750=14.22%, 1000=44.02%, 2000=38.01% lat (msec) : >=2000=0.70% cpu : usr=0.03%, sys=0.22%, ctx=1729, 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=146181: Thu Aug 27 18:40:41 2026 write: IOPS=16, BW=66.4KiB/s (68.0kB/s)(10.0MiB/154175msec); 0 zone resets slat (usec): min=23, max=14847, avg=192.06, stdev=689.05 clat (msec): min=224, max=2409, avg=962.38, stdev=271.23 lat (msec): min=225, max=2409, avg=962.57, stdev=271.26 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 542], 10.00th=[ 659], 20.00th=[ 760], | 30.00th=[ 835], 40.00th=[ 885], 50.00th=[ 936], 60.00th=[ 995], | 70.00th=[ 1053], 80.00th=[ 1150], 90.00th=[ 1301], 95.00th=[ 1418], | 99.00th=[ 1821], 99.50th=[ 2232], 99.90th=[ 2333], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 152, per=25.20%, avg=66.77, stdev=29.83, samples=302 iops : min= 1, max= 38, avg=16.25, stdev= 7.50, samples=302 lat (msec) : 250=0.04%, 500=2.85%, 750=16.64%, 1000=42.34%, 2000=37.38% lat (msec) : >=2000=0.74% cpu : usr=0.04%, sys=0.23%, ctx=1876, 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=265KiB/s (272kB/s), 66.3KiB/s-66.4KiB/s (67.9kB/s-68.0kB/s), io=40.0MiB (41.9MB), run=154175-154427msec 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=146214: Thu Aug 27 18:42:32 2026 read: IOPS=12, BW=48.9KiB/s (50.1kB/s)(5048KiB/103157msec) slat (msec): min=2, max=301, avg=14.81, stdev=12.01 clat (msec): min=7, max=978, avg=406.97, stdev=116.34 lat (msec): min=35, max=986, avg=421.80, stdev=117.40 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 249], 10.00th=[ 284], 20.00th=[ 317], | 30.00th=[ 342], 40.00th=[ 368], 50.00th=[ 397], 60.00th=[ 422], | 70.00th=[ 447], 80.00th=[ 493], 90.00th=[ 558], 95.00th=[ 600], | 99.00th=[ 718], 99.50th=[ 827], 99.90th=[ 961], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 104, per=25.07%, avg=48.64, stdev=20.46, samples=204 iops : min= 1, max= 26, avg=11.69, stdev= 5.19, samples=204 write: IOPS=12, BW=50.3KiB/s (51.5kB/s)(5192KiB/103157msec); 0 zone resets slat (usec): min=23, max=14901, avg=270.86, stdev=985.95 clat (msec): min=287, max=1896, avg=857.56, stdev=233.84 lat (msec): min=287, max=1897, avg=857.83, stdev=233.89 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 510], 10.00th=[ 567], 20.00th=[ 684], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 894], | 70.00th=[ 953], 80.00th=[ 1036], 90.00th=[ 1133], 95.00th=[ 1250], | 99.00th=[ 1536], 99.50th=[ 1703], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 7, max= 136, per=24.69%, avg=49.87, stdev=22.24, samples=204 iops : min= 1, max= 34, avg=12.00, stdev= 5.60, samples=204 lat (msec) : 10=0.04%, 50=0.16%, 100=0.23%, 250=2.07%, 500=39.92% lat (msec) : 750=22.58%, 1000=22.73%, 2000=12.27% cpu : usr=0.10%, sys=0.63%, ctx=4014, 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=146215: Thu Aug 27 18:42:32 2026 read: IOPS=12, BW=48.4KiB/s (49.5kB/s)(4976KiB/102875msec) slat (usec): min=2387, max=84645, avg=14660.53, stdev=8867.46 clat (msec): min=15, max=1149, avg=399.49, stdev=116.58 lat (msec): min=22, max=1175, avg=414.16, stdev=118.04 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 247], 10.00th=[ 279], 20.00th=[ 313], | 30.00th=[ 338], 40.00th=[ 363], 50.00th=[ 393], 60.00th=[ 418], | 70.00th=[ 439], 80.00th=[ 481], 90.00th=[ 535], 95.00th=[ 600], | 99.00th=[ 793], 99.50th=[ 827], 99.90th=[ 1116], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 128, per=24.79%, avg=48.09, stdev=22.36, samples=203 iops : min= 1, max= 32, avg=11.55, stdev= 5.64, samples=203 write: IOPS=12, BW=51.2KiB/s (52.4kB/s)(5264KiB/102875msec); 0 zone resets slat (usec): min=25, max=12998, avg=267.60, stdev=841.47 clat (msec): min=229, max=1947, avg=856.48, stdev=240.65 lat (msec): min=229, max=1947, avg=856.75, stdev=240.67 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 506], 10.00th=[ 567], 20.00th=[ 676], | 30.00th=[ 743], 40.00th=[ 785], 50.00th=[ 835], 60.00th=[ 885], | 70.00th=[ 953], 80.00th=[ 1036], 90.00th=[ 1133], 95.00th=[ 1267], | 99.00th=[ 1536], 99.50th=[ 1787], 99.90th=[ 1955], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 7, max= 112, per=25.06%, avg=50.62, stdev=21.77, samples=204 iops : min= 1, max= 28, avg=12.18, stdev= 5.50, samples=204 lat (msec) : 20=0.08%, 50=0.20%, 100=0.20%, 250=2.23%, 500=40.78% lat (msec) : 750=21.05%, 1000=22.62%, 2000=12.85% cpu : usr=0.09%, sys=0.63%, ctx=4278, 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=146216: Thu Aug 27 18:42:32 2026 read: IOPS=12, BW=48.3KiB/s (49.4kB/s)(4984KiB/103272msec) slat (usec): min=35, max=77738, avg=14296.47, stdev=8804.87 clat (msec): min=10, max=945, avg=396.87, stdev=112.34 lat (msec): min=16, max=980, avg=411.17, stdev=114.14 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 243], 10.00th=[ 271], 20.00th=[ 309], | 30.00th=[ 334], 40.00th=[ 363], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 439], 80.00th=[ 481], 90.00th=[ 542], 95.00th=[ 600], | 99.00th=[ 684], 99.50th=[ 726], 99.90th=[ 894], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 111, per=24.93%, avg=48.36, stdev=22.16, samples=203 iops : min= 1, max= 27, avg=11.62, stdev= 5.62, samples=203 write: IOPS=12, BW=50.9KiB/s (52.1kB/s)(5256KiB/103272msec); 0 zone resets slat (usec): min=26, max=17391, avg=255.73, stdev=903.73 clat (msec): min=159, max=1935, avg=866.55, stdev=232.00 lat (msec): min=160, max=1936, avg=866.81, stdev=232.00 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 514], 10.00th=[ 592], 20.00th=[ 701], | 30.00th=[ 751], 40.00th=[ 802], 50.00th=[ 852], 60.00th=[ 894], | 70.00th=[ 961], 80.00th=[ 1045], 90.00th=[ 1150], 95.00th=[ 1267], | 99.00th=[ 1502], 99.50th=[ 1552], 99.90th=[ 1905], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 112, per=24.80%, avg=50.09, stdev=21.69, samples=205 iops : min= 1, max= 28, avg=12.05, stdev= 5.49, samples=205 lat (msec) : 20=0.08%, 50=0.16%, 100=0.31%, 250=2.73%, 500=39.34% lat (msec) : 750=21.41%, 1000=23.16%, 2000=12.81% cpu : usr=0.08%, sys=0.64%, ctx=4440, 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=146217: Thu Aug 27 18:42:32 2026 read: IOPS=12, BW=49.1KiB/s (50.2kB/s)(5060KiB/103153msec) slat (usec): min=2436, max=66498, avg=14151.24, stdev=8277.26 clat (msec): min=62, max=928, avg=399.45, stdev=105.24 lat (msec): min=75, max=970, avg=413.61, stdev=106.68 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 255], 10.00th=[ 284], 20.00th=[ 313], | 30.00th=[ 342], 40.00th=[ 363], 50.00th=[ 388], 60.00th=[ 418], | 70.00th=[ 443], 80.00th=[ 477], 90.00th=[ 535], 95.00th=[ 584], | 99.00th=[ 701], 99.50th=[ 743], 99.90th=[ 911], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 128, per=25.41%, avg=49.29, stdev=21.24, samples=202 iops : min= 1, max= 32, avg=11.85, stdev= 5.40, samples=202 write: IOPS=12, BW=50.2KiB/s (51.4kB/s)(5180KiB/103153msec); 0 zone resets slat (usec): min=28, max=18522, avg=296.80, stdev=1087.42 clat (msec): min=289, max=1972, avg=866.55, stdev=242.72 lat (msec): min=291, max=1973, avg=866.85, stdev=242.71 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 510], 10.00th=[ 584], 20.00th=[ 676], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 852], 60.00th=[ 894], | 70.00th=[ 953], 80.00th=[ 1036], 90.00th=[ 1167], 95.00th=[ 1284], | 99.00th=[ 1586], 99.50th=[ 1888], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 111, per=24.48%, avg=49.45, stdev=20.06, samples=205 iops : min= 1, max= 27, avg=11.89, stdev= 5.09, samples=205 lat (msec) : 100=0.12%, 250=2.15%, 500=41.76%, 750=21.05%, 1000=23.09% lat (msec) : 2000=11.84% cpu : usr=0.10%, sys=0.64%, ctx=4433, 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=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=194KiB/s (199kB/s), 48.3KiB/s-49.1KiB/s (49.4kB/s-50.2kB/s), io=19.6MiB (20.5MB), run=102875-103272msec WRITE: bw=202KiB/s (207kB/s), 50.2KiB/s-51.2KiB/s (51.4kB/s-52.4kB/s), io=20.4MiB (21.4MB), run=102875-103272msec 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=146239: Thu Aug 27 18:42:41 2026 read: IOPS=1, BW=67.7MiB/s (70.0MB/s)(40.0MiB/591msec) slat (nsec): min=48654k, max=48654k, avg=48653989.00, stdev= 0.00 clat (nsec): min=501954k, max=501954k, avg=501954109.00, stdev= 0.00 lat (nsec): min=550612k, max=550612k, avg=550612397.00, 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=2.20%, ctx=18, 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=67.7MiB/s (70.0MB/s), 67.7MiB/s-67.7MiB/s (70.0MB/s-70.0MB/s), io=40.0MiB (41.9MB), run=591-591msec 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