== sanity test 398c: run fio to test AIO ================= 01:27:31 (1783142851) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.558387 s, 75.1 MB/s osc.lustre-OST0000-osc-ffff9f0cb8e3c000.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=145624: Sat Jul 4 01:29:53 2026 write: IOPS=19, BW=76.8KiB/s (78.6kB/s)(10.0MiB/133330msec); 0 zone resets slat (usec): min=40, max=11953, avg=427.86, stdev=938.13 clat (msec): min=241, max=1625, avg=831.76, stdev=185.04 lat (msec): min=241, max=1625, avg=832.19, stdev=185.03 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 531], 10.00th=[ 600], 20.00th=[ 676], | 30.00th=[ 743], 40.00th=[ 802], 50.00th=[ 844], 60.00th=[ 877], | 70.00th=[ 927], 80.00th=[ 969], 90.00th=[ 1045], 95.00th=[ 1133], | 99.00th=[ 1301], 99.50th=[ 1401], 99.90th=[ 1569], 99.95th=[ 1586], | 99.99th=[ 1620] bw ( KiB/s): min= 7, max= 144, per=24.77%, avg=76.04, stdev=32.01, samples=265 iops : min= 1, max= 36, avg=18.48, stdev= 8.03, samples=265 lat (msec) : 250=0.62%, 500=2.77%, 750=27.27%, 1000=53.95%, 2000=15.39% cpu : usr=0.05%, sys=0.41%, ctx=2377, 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=145625: Sat Jul 4 01:29:53 2026 write: IOPS=19, BW=76.9KiB/s (78.7kB/s)(10.0MiB/133172msec); 0 zone resets slat (usec): min=38, max=9150, avg=456.55, stdev=871.66 clat (msec): min=140, max=1607, avg=830.84, stdev=188.52 lat (msec): min=141, max=1607, avg=831.30, stdev=188.46 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 535], 10.00th=[ 592], 20.00th=[ 676], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 885], | 70.00th=[ 927], 80.00th=[ 978], 90.00th=[ 1053], 95.00th=[ 1116], | 99.00th=[ 1351], 99.50th=[ 1418], 99.90th=[ 1569], 99.95th=[ 1586], | 99.99th=[ 1603] bw ( KiB/s): min= 23, max= 168, per=24.86%, avg=76.31, stdev=25.90, samples=264 iops : min= 5, max= 42, avg=18.54, stdev= 6.50, samples=264 lat (msec) : 250=0.35%, 500=3.01%, 750=27.62%, 1000=52.85%, 2000=16.17% cpu : usr=0.07%, sys=0.42%, ctx=2692, 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=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=145626: Sat Jul 4 01:29:53 2026 write: IOPS=19, BW=77.1KiB/s (78.0kB/s)(10.0MiB/132745msec); 0 zone resets slat (usec): min=37, max=20953, avg=439.96, stdev=1066.19 clat (msec): min=182, max=1626, avg=828.93, stdev=192.14 lat (msec): min=182, max=1626, avg=829.37, stdev=192.14 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 523], 10.00th=[ 584], 20.00th=[ 676], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 885], | 70.00th=[ 927], 80.00th=[ 969], 90.00th=[ 1045], 95.00th=[ 1099], | 99.00th=[ 1385], 99.50th=[ 1452], 99.90th=[ 1552], 99.95th=[ 1603], | 99.99th=[ 1620] bw ( KiB/s): min= 15, max= 230, per=25.33%, avg=77.75, stdev=32.26, samples=259 iops : min= 3, max= 57, avg=18.90, stdev= 8.08, samples=259 lat (msec) : 250=0.62%, 500=3.63%, 750=26.91%, 1000=53.36%, 2000=15.47% cpu : usr=0.06%, sys=0.42%, ctx=2264, 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=145627: Sat Jul 4 01:29:53 2026 write: IOPS=19, BW=76.9KiB/s (78.8kB/s)(10.0MiB/133132msec); 0 zone resets slat (usec): min=38, max=16916, avg=407.20, stdev=906.47 clat (msec): min=263, max=1607, avg=830.58, stdev=186.27 lat (msec): min=263, max=1607, avg=830.99, stdev=186.28 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 535], 10.00th=[ 592], 20.00th=[ 676], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 877], | 70.00th=[ 919], 80.00th=[ 978], 90.00th=[ 1053], 95.00th=[ 1133], | 99.00th=[ 1318], 99.50th=[ 1418], 99.90th=[ 1502], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 15, max= 151, per=24.86%, avg=76.31, stdev=27.78, samples=264 iops : min= 3, max= 37, avg=18.54, stdev= 6.98, samples=264 lat (msec) : 500=2.97%, 750=28.44%, 1000=52.19%, 2000=16.41% cpu : usr=0.06%, sys=0.43%, ctx=2478, 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=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=307KiB/s (315kB/s), 76.8KiB/s-77.1KiB/s (78.6kB/s-78.0kB/s), io=40.0MiB (41.9MB), run=132745-133330msec 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=145655: Sat Jul 4 01:31:23 2026 read: IOPS=14, BW=59.6KiB/s (60.0kB/s)(5048KiB/84761msec) slat (usec): min=3086, max=40182, avg=11165.48, stdev=4980.45 clat (msec): min=32, max=770, avg=328.47, stdev=77.64 lat (msec): min=39, max=783, avg=339.65, stdev=78.48 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 222], 10.00th=[ 241], 20.00th=[ 271], | 30.00th=[ 288], 40.00th=[ 309], 50.00th=[ 326], 60.00th=[ 342], | 70.00th=[ 359], 80.00th=[ 384], 90.00th=[ 422], 95.00th=[ 460], | 99.00th=[ 527], 99.50th=[ 617], 99.90th=[ 709], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 15, max= 128, per=24.97%, avg=58.93, stdev=23.71, samples=168 iops : min= 3, max= 32, avg=14.22, stdev= 5.95, samples=168 write: IOPS=15, BW=61.3KiB/s (62.7kB/s)(5192KiB/84761msec); 0 zone resets slat (usec): min=56, max=9814, avg=450.23, stdev=794.95 clat (msec): min=238, max=1247, avg=712.01, stdev=183.60 lat (msec): min=238, max=1247, avg=712.46, stdev=183.59 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 439], 10.00th=[ 498], 20.00th=[ 558], | 30.00th=[ 609], 40.00th=[ 642], 50.00th=[ 693], 60.00th=[ 743], | 70.00th=[ 793], 80.00th=[ 860], 90.00th=[ 961], 95.00th=[ 1070], | 99.00th=[ 1183], 99.50th=[ 1234], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 15, max= 111, per=24.69%, avg=60.74, stdev=20.14, samples=168 iops : min= 3, max= 27, avg=14.67, stdev= 5.06, samples=168 lat (msec) : 50=0.12%, 100=0.20%, 250=6.45%, 500=47.03%, 750=26.91% lat (msec) : 1000=15.35%, 2000=3.95% cpu : usr=0.11%, sys=0.93%, ctx=4955, 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=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=145656: Sat Jul 4 01:31:23 2026 read: IOPS=14, BW=58.9KiB/s (60.3kB/s)(4976KiB/84550msec) slat (usec): min=63, max=35125, avg=10999.31, stdev=5013.57 clat (msec): min=8, max=780, avg=325.45, stdev=80.50 lat (msec): min=19, max=786, avg=336.46, stdev=81.22 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 211], 10.00th=[ 239], 20.00th=[ 266], | 30.00th=[ 288], 40.00th=[ 305], 50.00th=[ 321], 60.00th=[ 342], | 70.00th=[ 363], 80.00th=[ 384], 90.00th=[ 422], 95.00th=[ 456], | 99.00th=[ 518], 99.50th=[ 550], 99.90th=[ 776], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 120, per=24.58%, avg=58.02, stdev=24.50, samples=168 iops : min= 1, max= 30, avg=13.99, stdev= 6.16, samples=168 write: IOPS=15, BW=62.3KiB/s (63.8kB/s)(5264KiB/84550msec); 0 zone resets slat (usec): min=56, max=22257, avg=489.56, stdev=1020.14 clat (msec): min=89, max=1304, avg=708.71, stdev=190.32 lat (msec): min=89, max=1304, avg=709.20, stdev=190.32 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 418], 10.00th=[ 489], 20.00th=[ 567], | 30.00th=[ 609], 40.00th=[ 642], 50.00th=[ 693], 60.00th=[ 743], | 70.00th=[ 793], 80.00th=[ 860], 90.00th=[ 961], 95.00th=[ 1053], | 99.00th=[ 1200], 99.50th=[ 1234], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 7, max= 119, per=25.02%, avg=61.55, stdev=22.41, samples=168 iops : min= 1, max= 29, avg=14.88, stdev= 5.62, samples=168 lat (msec) : 10=0.04%, 20=0.16%, 50=0.23%, 100=0.27%, 250=6.45% lat (msec) : 500=46.56%, 750=26.60%, 1000=15.90%, 2000=3.79% cpu : usr=0.12%, sys=0.92%, ctx=4846, majf=0, minf=16 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=145657: Sat Jul 4 01:31:23 2026 read: IOPS=14, BW=58.8KiB/s (60.2kB/s)(4984KiB/84760msec) slat (usec): min=2935, max=46457, avg=11258.99, stdev=5292.12 clat (msec): min=17, max=640, avg=328.72, stdev=79.34 lat (msec): min=22, max=654, avg=339.99, stdev=80.06 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 220], 10.00th=[ 241], 20.00th=[ 268], | 30.00th=[ 288], 40.00th=[ 309], 50.00th=[ 326], 60.00th=[ 342], | 70.00th=[ 363], 80.00th=[ 393], 90.00th=[ 426], 95.00th=[ 460], | 99.00th=[ 558], 99.50th=[ 584], 99.90th=[ 634], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 8, max= 135, per=24.73%, avg=58.35, stdev=24.99, samples=168 iops : min= 2, max= 33, avg=14.08, stdev= 6.24, samples=168 write: IOPS=15, BW=62.0KiB/s (63.5kB/s)(5256KiB/84760msec); 0 zone resets slat (usec): min=56, max=10508, avg=434.95, stdev=736.65 clat (msec): min=129, max=1319, avg=707.60, stdev=184.55 lat (msec): min=129, max=1319, avg=708.04, stdev=184.56 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 439], 10.00th=[ 498], 20.00th=[ 558], | 30.00th=[ 609], 40.00th=[ 651], 50.00th=[ 684], 60.00th=[ 735], | 70.00th=[ 785], 80.00th=[ 852], 90.00th=[ 953], 95.00th=[ 1062], | 99.00th=[ 1183], 99.50th=[ 1217], 99.90th=[ 1301], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 7, max= 120, per=24.87%, avg=61.18, stdev=20.87, samples=168 iops : min= 1, max= 30, avg=14.78, stdev= 5.27, samples=168 lat (msec) : 20=0.04%, 50=0.12%, 100=0.27%, 250=6.25%, 500=46.13% lat (msec) : 750=28.28%, 1000=14.88%, 2000=4.02% cpu : usr=0.12%, sys=0.91%, ctx=4742, 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=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=145658: Sat Jul 4 01:31:23 2026 read: IOPS=14, BW=59.7KiB/s (61.1kB/s)(5060KiB/84764msec) slat (usec): min=3011, max=37336, avg=11164.31, stdev=5025.52 clat (msec): min=27, max=726, avg=332.52, stdev=80.67 lat (msec): min=34, max=735, avg=343.69, stdev=81.20 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 220], 10.00th=[ 243], 20.00th=[ 271], | 30.00th=[ 288], 40.00th=[ 309], 50.00th=[ 326], 60.00th=[ 342], | 70.00th=[ 363], 80.00th=[ 388], 90.00th=[ 435], 95.00th=[ 481], | 99.00th=[ 542], 99.50th=[ 642], 99.90th=[ 718], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 7, max= 120, per=25.19%, avg=59.45, stdev=24.02, samples=167 iops : min= 1, max= 30, avg=14.35, stdev= 6.04, samples=167 write: IOPS=15, BW=61.1KiB/s (62.6kB/s)(5180KiB/84764msec); 0 zone resets slat (usec): min=56, max=12492, avg=476.99, stdev=953.91 clat (msec): min=160, max=1272, avg=708.96, stdev=179.13 lat (msec): min=161, max=1272, avg=709.45, stdev=179.16 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 443], 10.00th=[ 498], 20.00th=[ 558], | 30.00th=[ 609], 40.00th=[ 651], 50.00th=[ 693], 60.00th=[ 735], | 70.00th=[ 785], 80.00th=[ 852], 90.00th=[ 953], 95.00th=[ 1062], | 99.00th=[ 1167], 99.50th=[ 1183], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 23, max= 128, per=24.78%, avg=60.95, stdev=20.10, samples=167 iops : min= 5, max= 32, avg=14.72, stdev= 5.02, samples=167 lat (msec) : 50=0.20%, 100=0.04%, 250=6.09%, 500=46.80%, 750=28.28% lat (msec) : 1000=15.04%, 2000=3.55% cpu : usr=0.14%, sys=0.92%, ctx=4803, majf=0, minf=15 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=237KiB/s (242kB/s), 58.8KiB/s-59.7KiB/s (60.2kB/s-61.1kB/s), io=19.6MiB (20.5MB), run=84550-84764msec WRITE: bw=246KiB/s (252kB/s), 61.1KiB/s-62.3KiB/s (62.6kB/s-63.8kB/s), io=20.4MiB (21.4MB), run=84550-84764msec 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=145674: Sat Jul 4 01:31:31 2026 read: IOPS=2, BW=105MiB/s (110MB/s)(40.0MiB/381msec) slat (nsec): min=30079k, max=30079k, avg=30079433.00, stdev= 0.00 clat (nsec): min=327023k, max=327023k, avg=327023089.00, stdev= 0.00 lat (nsec): min=357131k, max=357131k, avg=357130805.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 326], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 326], 95.00th=[ 326], | 99.00th=[ 326], 99.50th=[ 326], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.68%, ctx=22, 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=105MiB/s (110MB/s), 105MiB/s-105MiB/s (110MB/s-110MB/s), io=40.0MiB (41.9MB), run=381-381msec 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