== sanity test 398c: run fio to test AIO ================= 22:10:30 (1788487830) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.41179 s, 102 MB/s osc.lustre-OST0000-osc-ffff98f6e0d16000.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=145446: Thu Sep 3 22:13:22 2026 write: IOPS=15, BW=62.7KiB/s (64.2kB/s)(10.0MiB/163393msec); 0 zone resets slat (usec): min=28, max=16220, avg=258.35, stdev=861.75 clat (msec): min=311, max=2126, avg=1019.95, stdev=251.81 lat (msec): min=311, max=2126, avg=1020.21, stdev=251.80 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 667], 10.00th=[ 735], 20.00th=[ 810], | 30.00th=[ 869], 40.00th=[ 936], 50.00th=[ 995], 60.00th=[ 1070], | 70.00th=[ 1133], 80.00th=[ 1234], 90.00th=[ 1351], 95.00th=[ 1469], | 99.00th=[ 1670], 99.50th=[ 1737], 99.90th=[ 1921], 99.95th=[ 1972], | 99.99th=[ 2123] bw ( KiB/s): min= 7, max= 128, per=24.92%, avg=62.30, stdev=29.46, samples=323 iops : min= 1, max= 32, avg=15.06, stdev= 7.42, samples=323 lat (msec) : 500=1.29%, 750=10.70%, 1000=38.63%, 2000=49.34%, >=2000=0.04% cpu : usr=0.05%, sys=0.23%, ctx=2276, 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=145447: Thu Sep 3 22:13:22 2026 write: IOPS=15, BW=62.7KiB/s (64.2kB/s)(10.0MiB/163346msec); 0 zone resets slat (usec): min=25, max=17954, avg=251.90, stdev=840.43 clat (msec): min=128, max=2158, avg=1020.12, stdev=260.68 lat (msec): min=129, max=2160, avg=1020.38, stdev=260.66 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 659], 10.00th=[ 726], 20.00th=[ 802], | 30.00th=[ 869], 40.00th=[ 936], 50.00th=[ 1003], 60.00th=[ 1070], | 70.00th=[ 1150], 80.00th=[ 1234], 90.00th=[ 1351], 95.00th=[ 1469], | 99.00th=[ 1737], 99.50th=[ 1804], 99.90th=[ 2123], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 160, per=24.92%, avg=62.29, stdev=29.89, samples=323 iops : min= 1, max= 40, avg=15.06, stdev= 7.51, samples=323 lat (msec) : 250=0.27%, 500=1.52%, 750=10.20%, 1000=38.24%, 2000=49.65% lat (msec) : >=2000=0.12% cpu : usr=0.06%, sys=0.24%, ctx=1919, 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=145448: Thu Sep 3 22:13:22 2026 write: IOPS=15, BW=62.7KiB/s (64.2kB/s)(10.0MiB/163345msec); 0 zone resets slat (usec): min=23, max=13505, avg=239.75, stdev=811.95 clat (msec): min=231, max=2255, avg=1019.49, stdev=255.86 lat (msec): min=231, max=2255, avg=1019.73, stdev=255.83 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 651], 10.00th=[ 718], 20.00th=[ 810], | 30.00th=[ 869], 40.00th=[ 936], 50.00th=[ 1003], 60.00th=[ 1083], | 70.00th=[ 1133], 80.00th=[ 1234], 90.00th=[ 1334], 95.00th=[ 1469], | 99.00th=[ 1703], 99.50th=[ 1787], 99.90th=[ 2165], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 128, per=24.92%, avg=62.31, stdev=28.44, samples=323 iops : min= 1, max= 32, avg=15.06, stdev= 7.14, samples=323 lat (msec) : 250=0.08%, 500=1.29%, 750=10.90%, 1000=37.66%, 2000=49.84% lat (msec) : >=2000=0.23% cpu : usr=0.05%, sys=0.22%, ctx=2027, 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=145449: Thu Sep 3 22:13:22 2026 write: IOPS=15, BW=62.7KiB/s (64.2kB/s)(10.0MiB/163396msec); 0 zone resets slat (usec): min=29, max=20737, avg=291.59, stdev=1172.44 clat (msec): min=319, max=2173, avg=1019.97, stdev=253.53 lat (msec): min=319, max=2174, avg=1020.26, stdev=253.53 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 659], 10.00th=[ 735], 20.00th=[ 810], | 30.00th=[ 869], 40.00th=[ 927], 50.00th=[ 1003], 60.00th=[ 1070], | 70.00th=[ 1133], 80.00th=[ 1234], 90.00th=[ 1351], 95.00th=[ 1469], | 99.00th=[ 1720], 99.50th=[ 1754], 99.90th=[ 2123], 99.95th=[ 2123], | 99.99th=[ 2165] bw ( KiB/s): min= 8, max= 128, per=25.00%, avg=62.50, stdev=27.44, samples=322 iops : min= 2, max= 32, avg=15.11, stdev= 6.90, samples=322 lat (msec) : 500=1.41%, 750=11.29%, 1000=37.50%, 2000=49.65%, >=2000=0.16% cpu : usr=0.05%, sys=0.25%, ctx=2059, 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=251KiB/s (257kB/s), 62.7KiB/s-62.7KiB/s (64.2kB/s-64.2kB/s), io=40.0MiB (41.9MB), run=163345-163396msec 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=145483: Thu Sep 3 22:15:27 2026 read: IOPS=10, BW=43.3KiB/s (44.4kB/s)(5048KiB/116489msec) slat (usec): min=3125, max=55067, avg=15361.98, stdev=8096.64 clat (msec): min=12, max=974, avg=458.52, stdev=119.12 lat (msec): min=32, max=987, avg=473.89, stdev=119.69 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 296], 10.00th=[ 330], 20.00th=[ 368], | 30.00th=[ 393], 40.00th=[ 418], 50.00th=[ 447], 60.00th=[ 477], | 70.00th=[ 514], 80.00th=[ 550], 90.00th=[ 617], 95.00th=[ 659], | 99.00th=[ 793], 99.50th=[ 818], 99.90th=[ 835], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 6, max= 110, per=25.13%, avg=43.22, stdev=19.69, samples=229 iops : min= 1, max= 27, avg=10.30, stdev= 4.97, samples=229 write: IOPS=11, BW=44.6KiB/s (45.6kB/s)(5192KiB/116489msec); 0 zone resets slat (usec): min=34, max=22132, avg=365.20, stdev=1335.10 clat (msec): min=334, max=1736, avg=972.07, stdev=247.22 lat (msec): min=334, max=1736, avg=972.44, stdev=247.25 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 609], 10.00th=[ 659], 20.00th=[ 751], | 30.00th=[ 827], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1020], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1318], 95.00th=[ 1385], | 99.00th=[ 1569], 99.50th=[ 1687], 99.90th=[ 1703], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 7, max= 95, per=24.86%, avg=44.49, stdev=18.07, samples=228 iops : min= 1, max= 23, avg=10.62, stdev= 4.51, samples=228 lat (msec) : 20=0.04%, 50=0.16%, 100=0.16%, 250=0.70%, 500=32.30% lat (msec) : 750=25.23%, 1000=19.45%, 2000=21.95% cpu : usr=0.10%, sys=0.68%, ctx=4837, 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=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=145484: Thu Sep 3 22:15:27 2026 read: IOPS=10, BW=42.8KiB/s (43.8kB/s)(4976KiB/116395msec) slat (usec): min=35, max=53568, avg=15255.69, stdev=8080.73 clat (msec): min=27, max=1261, avg=457.82, stdev=123.63 lat (msec): min=35, max=1276, avg=473.09, stdev=124.38 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 292], 10.00th=[ 326], 20.00th=[ 368], | 30.00th=[ 393], 40.00th=[ 422], 50.00th=[ 451], 60.00th=[ 481], | 70.00th=[ 506], 80.00th=[ 550], 90.00th=[ 609], 95.00th=[ 659], | 99.00th=[ 802], 99.50th=[ 852], 99.90th=[ 1150], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 7, max= 119, per=24.61%, avg=42.33, stdev=21.60, samples=230 iops : min= 1, max= 29, avg=10.08, stdev= 5.43, samples=230 write: IOPS=11, BW=45.2KiB/s (46.3kB/s)(5264KiB/116395msec); 0 zone resets slat (usec): min=33, max=14499, avg=301.75, stdev=879.64 clat (msec): min=270, max=2231, avg=966.70, stdev=256.89 lat (msec): min=271, max=2231, avg=967.01, stdev=256.92 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 592], 10.00th=[ 659], 20.00th=[ 751], | 30.00th=[ 818], 40.00th=[ 885], 50.00th=[ 944], 60.00th=[ 1020], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1301], 95.00th=[ 1418], | 99.00th=[ 1586], 99.50th=[ 1687], 99.90th=[ 1905], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 111, per=24.87%, avg=44.52, stdev=18.70, samples=231 iops : min= 1, max= 27, avg=10.62, stdev= 4.66, samples=231 lat (msec) : 50=0.31%, 100=0.16%, 250=0.59%, 500=33.16%, 750=23.71% lat (msec) : 1000=20.31%, 2000=21.72%, >=2000=0.04% cpu : usr=0.10%, sys=0.66%, ctx=4782, 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=145485: Thu Sep 3 22:15:27 2026 read: IOPS=10, BW=42.8KiB/s (43.8kB/s)(4984KiB/116483msec) slat (usec): min=2553, max=68329, avg=15202.25, stdev=8488.02 clat (msec): min=24, max=969, avg=459.44, stdev=113.76 lat (msec): min=30, max=988, avg=474.65, stdev=114.73 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 292], 10.00th=[ 330], 20.00th=[ 368], | 30.00th=[ 397], 40.00th=[ 422], 50.00th=[ 451], 60.00th=[ 481], | 70.00th=[ 514], 80.00th=[ 550], 90.00th=[ 609], 95.00th=[ 642], | 99.00th=[ 760], 99.50th=[ 810], 99.90th=[ 961], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 7, max= 120, per=24.78%, avg=42.62, stdev=21.15, samples=230 iops : min= 1, max= 30, avg=10.15, stdev= 5.33, samples=230 write: IOPS=11, BW=45.1KiB/s (46.2kB/s)(5256KiB/116483msec); 0 zone resets slat (usec): min=32, max=20470, avg=351.37, stdev=1288.90 clat (msec): min=196, max=1685, avg=965.20, stdev=254.69 lat (msec): min=196, max=1685, avg=965.56, stdev=254.69 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 592], 10.00th=[ 659], 20.00th=[ 743], | 30.00th=[ 810], 40.00th=[ 877], 50.00th=[ 936], 60.00th=[ 1003], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1334], 95.00th=[ 1418], | 99.00th=[ 1569], 99.50th=[ 1603], 99.90th=[ 1653], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 103, per=24.98%, avg=44.71, stdev=18.62, samples=229 iops : min= 1, max= 25, avg=10.67, stdev= 4.67, samples=229 lat (msec) : 50=0.08%, 100=0.20%, 250=0.59%, 500=32.27%, 750=25.70% lat (msec) : 1000=20.20%, 2000=20.98% cpu : usr=0.12%, sys=0.63%, ctx=4549, 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=145486: Thu Sep 3 22:15:27 2026 read: IOPS=10, BW=43.5KiB/s (44.5kB/s)(5060KiB/116425msec) slat (usec): min=3223, max=68629, avg=15532.31, stdev=8290.79 clat (msec): min=20, max=976, avg=457.46, stdev=110.18 lat (msec): min=34, max=994, avg=473.00, stdev=110.86 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 296], 10.00th=[ 326], 20.00th=[ 368], | 30.00th=[ 393], 40.00th=[ 422], 50.00th=[ 451], 60.00th=[ 481], | 70.00th=[ 506], 80.00th=[ 550], 90.00th=[ 600], 95.00th=[ 642], | 99.00th=[ 751], 99.50th=[ 802], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 120, per=25.30%, avg=43.51, stdev=19.34, samples=228 iops : min= 1, max= 30, avg=10.37, stdev= 4.88, samples=228 write: IOPS=11, BW=44.5KiB/s (45.6kB/s)(5180KiB/116425msec); 0 zone resets slat (usec): min=32, max=16737, avg=345.62, stdev=1163.64 clat (msec): min=197, max=1708, avg=973.52, stdev=245.21 lat (msec): min=197, max=1708, avg=973.87, stdev=245.24 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 600], 10.00th=[ 676], 20.00th=[ 760], | 30.00th=[ 827], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1020], | 70.00th=[ 1083], 80.00th=[ 1200], 90.00th=[ 1301], 95.00th=[ 1401], | 99.00th=[ 1586], 99.50th=[ 1653], 99.90th=[ 1687], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 7, max= 104, per=24.58%, avg=44.00, stdev=19.15, samples=230 iops : min= 1, max= 26, avg=10.50, stdev= 4.81, samples=230 lat (msec) : 50=0.08%, 100=0.04%, 250=0.43%, 500=33.59%, 750=24.41% lat (msec) : 1000=19.92%, 2000=21.52% cpu : usr=0.09%, sys=0.69%, ctx=4865, 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=172KiB/s (176kB/s), 42.8KiB/s-43.5KiB/s (43.8kB/s-44.5kB/s), io=19.6MiB (20.5MB), run=116395-116489msec WRITE: bw=179KiB/s (184kB/s), 44.5KiB/s-45.2KiB/s (45.6kB/s-46.3kB/s), io=20.4MiB (21.4MB), run=116395-116489msec 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=145508: Thu Sep 3 22:15:39 2026 read: IOPS=1, BW=56.2MiB/s (58.9MB/s)(40.0MiB/712msec) slat (nsec): min=49491k, max=49491k, avg=49491428.00, stdev= 0.00 clat (nsec): min=641437k, max=641437k, avg=641436564.00, stdev= 0.00 lat (nsec): min=690933k, max=690933k, avg=690932550.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.83%, ctx=43, 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=56.2MiB/s (58.9MB/s), 56.2MiB/s-56.2MiB/s (58.9MB/s-58.9MB/s), io=40.0MiB (41.9MB), run=712-712msec 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