== sanity test 398c: run fio to test AIO ================= 19:50:09 (1788393009) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.192088 s, 218 MB/s osc.lustre-OST0000-osc-ffff9be5ad777800.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=148747: Wed Sep 2 19:53:08 2026 write: IOPS=14, BW=58.0KiB/s (60.4kB/s)(10.0MiB/173587msec); 0 zone resets slat (usec): min=22, max=17075, avg=183.12, stdev=706.97 clat (msec): min=82, max=3951, avg=1084.09, stdev=712.87 lat (msec): min=82, max=3951, avg=1084.28, stdev=712.89 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 376], 10.00th=[ 418], 20.00th=[ 498], | 30.00th=[ 558], 40.00th=[ 642], 50.00th=[ 802], 60.00th=[ 1083], | 70.00th=[ 1368], 80.00th=[ 1687], 90.00th=[ 2123], 95.00th=[ 2500], | 99.00th=[ 3272], 99.50th=[ 3574], 99.90th=[ 3775], 99.95th=[ 3910], | 99.99th=[ 3943] bw ( KiB/s): min= 7, max= 269, per=26.06%, avg=61.24, stdev=44.49, samples=328 iops : min= 1, max= 67, avg=14.84, stdev=11.20, samples=328 lat (msec) : 100=0.23%, 250=1.02%, 500=19.69%, 750=26.99%, 1000=9.02% lat (msec) : 2000=31.17%, >=2000=11.88% cpu : usr=0.03%, sys=0.18%, ctx=2086, 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=148748: Wed Sep 2 19:53:08 2026 write: IOPS=14, BW=58.8KiB/s (60.2kB/s)(10.0MiB/174149msec); 0 zone resets slat (usec): min=21, max=28752, avg=197.57, stdev=1022.13 clat (msec): min=119, max=3777, avg=1087.35, stdev=708.82 lat (msec): min=119, max=3798, avg=1087.55, stdev=708.90 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 384], 10.00th=[ 426], 20.00th=[ 502], | 30.00th=[ 558], 40.00th=[ 642], 50.00th=[ 810], 60.00th=[ 1099], | 70.00th=[ 1351], 80.00th=[ 1653], 90.00th=[ 2123], 95.00th=[ 2500], | 99.00th=[ 3272], 99.50th=[ 3440], 99.90th=[ 3775], 99.95th=[ 3775], | 99.99th=[ 3775] bw ( KiB/s): min= 7, max= 255, per=26.24%, avg=61.66, stdev=42.98, samples=326 iops : min= 1, max= 63, avg=14.95, stdev=10.80, samples=326 lat (msec) : 250=0.90%, 500=19.18%, 750=27.30%, 1000=8.05%, 2000=32.30% lat (msec) : >=2000=12.27% cpu : usr=0.05%, sys=0.24%, ctx=1815, 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=148749: Wed Sep 2 19:53:08 2026 write: IOPS=14, BW=58.8KiB/s (60.2kB/s)(10.0MiB/174144msec); 0 zone resets slat (usec): min=22, max=16476, avg=170.07, stdev=627.47 clat (msec): min=114, max=3886, avg=1087.53, stdev=710.28 lat (msec): min=114, max=3886, avg=1087.70, stdev=710.28 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 380], 10.00th=[ 426], 20.00th=[ 502], | 30.00th=[ 558], 40.00th=[ 634], 50.00th=[ 802], 60.00th=[ 1116], | 70.00th=[ 1368], 80.00th=[ 1687], 90.00th=[ 2140], 95.00th=[ 2467], | 99.00th=[ 3272], 99.50th=[ 3608], 99.90th=[ 3708], 99.95th=[ 3775], | 99.99th=[ 3876] bw ( KiB/s): min= 7, max= 223, per=26.82%, avg=63.02, stdev=42.88, samples=319 iops : min= 1, max= 55, avg=15.29, stdev=10.75, samples=319 lat (msec) : 250=0.70%, 500=19.34%, 750=28.24%, 1000=7.07%, 2000=32.58% lat (msec) : >=2000=12.07% cpu : usr=0.03%, sys=0.18%, ctx=2115, 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=148750: Wed Sep 2 19:53:08 2026 write: IOPS=14, BW=58.8KiB/s (60.2kB/s)(10.0MiB/174146msec); 0 zone resets slat (usec): min=24, max=49559, avg=233.39, stdev=1781.97 clat (msec): min=96, max=3789, avg=1087.47, stdev=712.97 lat (msec): min=96, max=3789, avg=1087.71, stdev=713.07 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 376], 10.00th=[ 418], 20.00th=[ 502], | 30.00th=[ 567], 40.00th=[ 642], 50.00th=[ 802], 60.00th=[ 1116], | 70.00th=[ 1351], 80.00th=[ 1670], 90.00th=[ 2106], 95.00th=[ 2467], | 99.00th=[ 3339], 99.50th=[ 3473], 99.90th=[ 3775], 99.95th=[ 3775], | 99.99th=[ 3775] bw ( KiB/s): min= 7, max= 223, per=26.23%, avg=61.63, stdev=42.88, samples=326 iops : min= 1, max= 55, avg=14.94, stdev=10.76, samples=326 lat (msec) : 100=0.08%, 250=0.82%, 500=19.14%, 750=28.52%, 1000=6.29% lat (msec) : 2000=33.20%, >=2000=11.95% cpu : usr=0.05%, sys=0.21%, ctx=2213, 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=235KiB/s (241kB/s), 58.8KiB/s-58.0KiB/s (60.2kB/s-60.4kB/s), io=40.0MiB (41.9MB), run=173587-174149msec 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=148785: Wed Sep 2 19:55:14 2026 read: IOPS=10, BW=43.0KiB/s (44.0kB/s)(5048KiB/117370msec) slat (usec): min=2505, max=67401, avg=14629.30, stdev=8458.21 clat (msec): min=9, max=1296, avg=452.44, stdev=132.67 lat (msec): min=18, max=1308, avg=467.07, stdev=134.43 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 275], 10.00th=[ 313], 20.00th=[ 351], | 30.00th=[ 380], 40.00th=[ 405], 50.00th=[ 439], 60.00th=[ 472], | 70.00th=[ 506], 80.00th=[ 550], 90.00th=[ 609], 95.00th=[ 684], | 99.00th=[ 860], 99.50th=[ 885], 99.90th=[ 1150], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 7, max= 103, per=25.08%, avg=42.64, stdev=20.47, samples=232 iops : min= 1, max= 25, avg=10.23, stdev= 5.14, samples=232 write: IOPS=11, BW=44.2KiB/s (45.3kB/s)(5192KiB/117370msec); 0 zone resets slat (usec): min=33, max=21227, avg=230.97, stdev=810.30 clat (msec): min=363, max=1876, avg=989.47, stdev=267.19 lat (msec): min=363, max=1876, avg=989.70, stdev=267.19 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 617], 10.00th=[ 667], 20.00th=[ 768], | 30.00th=[ 835], 40.00th=[ 885], 50.00th=[ 961], 60.00th=[ 1020], | 70.00th=[ 1116], 80.00th=[ 1200], 90.00th=[ 1368], 95.00th=[ 1502], | 99.00th=[ 1703], 99.50th=[ 1720], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 101, per=24.81%, avg=43.91, stdev=18.63, samples=232 iops : min= 1, max= 25, avg=10.54, stdev= 4.72, samples=232 lat (msec) : 10=0.04%, 50=0.12%, 100=0.20%, 250=0.90%, 500=33.59% lat (msec) : 750=22.07%, 1000=20.94%, 2000=22.15% cpu : usr=0.08%, sys=0.52%, ctx=4394, 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=148786: Wed Sep 2 19:55:14 2026 read: IOPS=10, BW=42.3KiB/s (43.3kB/s)(4976KiB/117770msec) slat (usec): min=2778, max=64881, avg=14250.53, stdev=8179.24 clat (msec): min=6, max=1130, avg=448.52, stdev=134.59 lat (msec): min=10, max=1142, avg=462.77, stdev=136.22 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 268], 10.00th=[ 305], 20.00th=[ 342], | 30.00th=[ 372], 40.00th=[ 401], 50.00th=[ 430], 60.00th=[ 460], | 70.00th=[ 498], 80.00th=[ 550], 90.00th=[ 617], 95.00th=[ 693], | 99.00th=[ 860], 99.50th=[ 927], 99.90th=[ 1116], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 112, per=24.71%, avg=42.00, stdev=21.49, samples=232 iops : min= 1, max= 28, avg=10.07, stdev= 5.40, samples=232 write: IOPS=11, BW=44.7KiB/s (45.8kB/s)(5264KiB/117770msec); 0 zone resets slat (usec): min=29, max=11589, avg=218.70, stdev=751.01 clat (msec): min=239, max=1912, avg=992.17, stdev=268.24 lat (msec): min=239, max=1914, avg=992.39, stdev=268.25 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 617], 10.00th=[ 676], 20.00th=[ 760], | 30.00th=[ 827], 40.00th=[ 885], 50.00th=[ 969], 60.00th=[ 1053], | 70.00th=[ 1116], 80.00th=[ 1200], 90.00th=[ 1351], 95.00th=[ 1485], | 99.00th=[ 1703], 99.50th=[ 1838], 99.90th=[ 1888], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 7, max= 119, per=24.94%, avg=44.14, stdev=19.94, samples=234 iops : min= 1, max= 29, avg=10.61, stdev= 5.00, samples=234 lat (msec) : 10=0.04%, 50=0.08%, 100=0.16%, 250=1.37%, 500=33.59% lat (msec) : 750=20.90%, 1000=19.88%, 2000=23.98% cpu : usr=0.08%, sys=0.49%, ctx=3821, 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=148787: Wed Sep 2 19:55:14 2026 read: IOPS=10, BW=42.3KiB/s (43.3kB/s)(4984KiB/117839msec) slat (usec): min=2745, max=71275, avg=14408.51, stdev=8406.16 clat (msec): min=26, max=923, avg=452.98, stdev=127.11 lat (msec): min=41, max=950, avg=467.40, stdev=128.70 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 279], 10.00th=[ 313], 20.00th=[ 351], | 30.00th=[ 380], 40.00th=[ 405], 50.00th=[ 435], 60.00th=[ 464], | 70.00th=[ 502], 80.00th=[ 550], 90.00th=[ 625], 95.00th=[ 693], | 99.00th=[ 818], 99.50th=[ 869], 99.90th=[ 919], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 111, per=24.97%, avg=42.45, stdev=21.46, samples=231 iops : min= 1, max= 27, avg=10.19, stdev= 5.38, samples=231 write: IOPS=11, BW=44.6KiB/s (45.7kB/s)(5256KiB/117839msec); 0 zone resets slat (usec): min=32, max=13551, avg=216.84, stdev=644.97 clat (msec): min=384, max=1851, avg=988.42, stdev=267.01 lat (msec): min=384, max=1851, avg=988.64, stdev=266.98 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 609], 10.00th=[ 667], 20.00th=[ 760], | 30.00th=[ 827], 40.00th=[ 885], 50.00th=[ 953], 60.00th=[ 1020], | 70.00th=[ 1116], 80.00th=[ 1200], 90.00th=[ 1368], 95.00th=[ 1485], | 99.00th=[ 1720], 99.50th=[ 1754], 99.90th=[ 1838], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 96, per=24.91%, avg=44.09, stdev=18.59, samples=233 iops : min= 1, max= 24, avg=10.60, stdev= 4.64, samples=233 lat (msec) : 50=0.08%, 100=0.08%, 250=0.82%, 500=33.52%, 750=22.58% lat (msec) : 1000=21.13%, 2000=21.80% cpu : usr=0.08%, sys=0.53%, ctx=4560, 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=148788: Wed Sep 2 19:55:14 2026 read: IOPS=10, BW=43.3KiB/s (44.3kB/s)(5060KiB/116954msec) slat (usec): min=44, max=74882, avg=14153.14, stdev=8476.98 clat (msec): min=17, max=1000, avg=453.49, stdev=133.56 lat (msec): min=21, max=1026, avg=467.65, stdev=135.29 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 271], 10.00th=[ 305], 20.00th=[ 347], | 30.00th=[ 380], 40.00th=[ 414], 50.00th=[ 447], 60.00th=[ 472], | 70.00th=[ 506], 80.00th=[ 550], 90.00th=[ 625], 95.00th=[ 693], | 99.00th=[ 844], 99.50th=[ 885], 99.90th=[ 953], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7, max= 111, per=25.63%, avg=43.57, stdev=19.56, samples=228 iops : min= 1, max= 27, avg=10.46, stdev= 4.91, samples=228 write: IOPS=11, BW=44.3KiB/s (45.4kB/s)(5180KiB/116954msec); 0 zone resets slat (usec): min=33, max=11075, avg=197.76, stdev=577.35 clat (msec): min=163, max=1903, avg=987.20, stdev=273.09 lat (msec): min=163, max=1903, avg=987.40, stdev=273.10 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 592], 10.00th=[ 659], 20.00th=[ 768], | 30.00th=[ 827], 40.00th=[ 885], 50.00th=[ 961], 60.00th=[ 1036], | 70.00th=[ 1133], 80.00th=[ 1217], 90.00th=[ 1368], 95.00th=[ 1485], | 99.00th=[ 1653], 99.50th=[ 1720], 99.90th=[ 1871], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 7, max= 110, per=25.22%, avg=44.64, stdev=20.50, samples=227 iops : min= 1, max= 27, avg=10.73, stdev= 5.16, samples=227 lat (msec) : 20=0.04%, 50=0.31%, 100=0.12%, 250=1.25%, 500=33.01% lat (msec) : 750=22.58%, 1000=20.62%, 2000=22.07% cpu : usr=0.07%, sys=0.52%, ctx=4023, 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=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=170KiB/s (174kB/s), 42.3KiB/s-43.3KiB/s (43.3kB/s-44.3kB/s), io=19.6MiB (20.5MB), run=116954-117839msec WRITE: bw=177KiB/s (182kB/s), 44.2KiB/s-44.7KiB/s (45.3kB/s-45.8kB/s), io=20.4MiB (21.4MB), run=116954-117839msec 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=148809: Wed Sep 2 19:55:25 2026 read: IOPS=1, BW=76.5MiB/s (80.2MB/s)(40.0MiB/523msec) slat (nsec): min=49489k, max=49489k, avg=49488865.00, stdev= 0.00 clat (nsec): min=451086k, max=451086k, avg=451085952.00, stdev= 0.00 lat (nsec): min=500580k, max=500580k, avg=500579720.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 451], 10.00th=[ 451], 20.00th=[ 451], | 30.00th=[ 451], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.34%, ctx=13, 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=76.5MiB/s (80.2MB/s), 76.5MiB/s-76.5MiB/s (80.2MB/s-80.2MB/s), io=40.0MiB (41.9MB), run=523-523msec 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