== sanity test 398c: run fio to test AIO ================= 12:44:31 (1782233071) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.462011 s, 90.8 MB/s osc.lustre-OST0000-osc-ffff8ab98a220000.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=145567: Tue Jun 23 12:47:31 2026 write: IOPS=15, BW=61.1KiB/s (62.6kB/s)(10.0MiB/167551msec); 0 zone resets slat (usec): min=37, max=22668, avg=362.70, stdev=1162.36 clat (msec): min=60, max=2117, avg=1046.10, stdev=273.63 lat (msec): min=61, max=2117, avg=1046.46, stdev=273.62 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 642], 10.00th=[ 726], 20.00th=[ 827], | 30.00th=[ 902], 40.00th=[ 961], 50.00th=[ 1020], 60.00th=[ 1099], | 70.00th=[ 1167], 80.00th=[ 1267], 90.00th=[ 1418], 95.00th=[ 1536], | 99.00th=[ 1703], 99.50th=[ 1754], 99.90th=[ 2022], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 7, max= 176, per=24.74%, avg=60.38, stdev=27.81, samples=333 iops : min= 1, max= 44, avg=14.57, stdev= 6.97, samples=333 lat (msec) : 100=0.04%, 250=0.20%, 500=1.84%, 750=10.08%, 1000=34.30% lat (msec) : 2000=53.40%, >=2000=0.16% cpu : usr=0.06%, sys=0.36%, ctx=2345, 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=145568: Tue Jun 23 12:47:31 2026 write: IOPS=15, BW=61.0KiB/s (62.5kB/s)(10.0MiB/167745msec); 0 zone resets slat (usec): min=36, max=25007, avg=314.11, stdev=1050.06 clat (msec): min=346, max=2165, avg=1047.10, stdev=266.88 lat (msec): min=347, max=2165, avg=1047.41, stdev=266.88 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 651], 10.00th=[ 726], 20.00th=[ 835], | 30.00th=[ 902], 40.00th=[ 969], 50.00th=[ 1036], 60.00th=[ 1099], | 70.00th=[ 1167], 80.00th=[ 1267], 90.00th=[ 1401], 95.00th=[ 1536], | 99.00th=[ 1703], 99.50th=[ 1754], 99.90th=[ 2056], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 128, per=25.50%, avg=62.23, stdev=29.26, samples=323 iops : min= 1, max= 32, avg=15.04, stdev= 7.34, samples=323 lat (msec) : 500=1.91%, 750=9.26%, 1000=33.32%, 2000=55.35%, >=2000=0.16% cpu : usr=0.05%, sys=0.30%, ctx=1685, 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=145569: Tue Jun 23 12:47:31 2026 write: IOPS=15, BW=61.2KiB/s (62.6kB/s)(10.0MiB/167408msec); 0 zone resets slat (usec): min=39, max=31186, avg=327.50, stdev=1106.86 clat (msec): min=184, max=2119, avg=1045.49, stdev=273.70 lat (msec): min=184, max=2119, avg=1045.82, stdev=273.74 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 609], 10.00th=[ 718], 20.00th=[ 835], | 30.00th=[ 902], 40.00th=[ 969], 50.00th=[ 1028], 60.00th=[ 1099], | 70.00th=[ 1167], 80.00th=[ 1267], 90.00th=[ 1401], 95.00th=[ 1536], | 99.00th=[ 1720], 99.50th=[ 1754], 99.90th=[ 2005], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 7, max= 128, per=25.59%, avg=62.44, stdev=30.99, samples=322 iops : min= 1, max= 32, avg=15.10, stdev= 7.79, samples=322 lat (msec) : 250=0.62%, 500=1.41%, 750=10.08%, 1000=33.32%, 2000=54.45% lat (msec) : >=2000=0.12% cpu : usr=0.05%, sys=0.30%, ctx=1952, 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=145570: Tue Jun 23 12:47:31 2026 write: IOPS=15, BW=61.0KiB/s (62.5kB/s)(10.0MiB/167744msec); 0 zone resets slat (usec): min=40, max=15675, avg=332.57, stdev=909.29 clat (msec): min=329, max=2094, avg=1046.94, stdev=268.84 lat (msec): min=329, max=2100, avg=1047.28, stdev=268.81 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 642], 10.00th=[ 726], 20.00th=[ 835], | 30.00th=[ 902], 40.00th=[ 961], 50.00th=[ 1028], 60.00th=[ 1099], | 70.00th=[ 1167], 80.00th=[ 1267], 90.00th=[ 1401], 95.00th=[ 1536], | 99.00th=[ 1703], 99.50th=[ 1770], 99.90th=[ 2056], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 7, max= 152, per=24.82%, avg=60.55, stdev=24.98, samples=332 iops : min= 1, max= 38, avg=14.61, stdev= 6.28, samples=332 lat (msec) : 500=1.91%, 750=9.49%, 1000=34.02%, 2000=54.38%, >=2000=0.20% cpu : usr=0.06%, sys=0.36%, ctx=2331, 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=244KiB/s (250kB/s), 61.0KiB/s-61.2KiB/s (62.5kB/s-62.6kB/s), io=40.0MiB (41.9MB), run=167408-167745msec 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=145604: Tue Jun 23 12:49:37 2026 read: IOPS=10, BW=42.7KiB/s (43.8kB/s)(5048KiB/118135msec) slat (usec): min=3528, max=94920, avg=17010.01, stdev=10056.84 clat (msec): min=15, max=1133, avg=462.23, stdev=146.07 lat (msec): min=29, max=1158, avg=479.25, stdev=148.20 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 279], 10.00th=[ 313], 20.00th=[ 351], | 30.00th=[ 380], 40.00th=[ 409], 50.00th=[ 439], 60.00th=[ 472], | 70.00th=[ 510], 80.00th=[ 567], 90.00th=[ 642], 95.00th=[ 735], | 99.00th=[ 927], 99.50th=[ 969], 99.90th=[ 1116], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 110, per=24.88%, avg=42.05, stdev=20.67, samples=234 iops : min= 1, max= 27, avg= 9.94, stdev= 5.17, samples=234 write: IOPS=10, BW=43.9KiB/s (45.0kB/s)(5192KiB/118135msec); 0 zone resets slat (usec): min=42, max=21849, avg=463.30, stdev=1370.52 clat (msec): min=329, max=1971, avg=987.01, stdev=274.95 lat (msec): min=329, max=1972, avg=987.47, stdev=274.89 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 600], 10.00th=[ 667], 20.00th=[ 751], | 30.00th=[ 818], 40.00th=[ 894], 50.00th=[ 961], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1351], 95.00th=[ 1485], | 99.00th=[ 1770], 99.50th=[ 1838], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 103, per=24.58%, avg=43.25, stdev=19.58, samples=234 iops : min= 1, max= 25, avg=10.24, stdev= 4.88, samples=234 lat (msec) : 20=0.04%, 50=0.23%, 100=0.16%, 250=0.90%, 500=32.73% lat (msec) : 750=23.05%, 1000=19.73%, 2000=23.16% cpu : usr=0.11%, sys=0.82%, ctx=4349, 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=145605: Tue Jun 23 12:49:37 2026 read: IOPS=10, BW=42.1KiB/s (43.1kB/s)(4976KiB/118117msec) slat (usec): min=3725, max=78002, avg=17373.47, stdev=10000.68 clat (msec): min=16, max=1139, avg=460.30, stdev=148.33 lat (msec): min=28, max=1177, avg=477.69, stdev=150.47 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 279], 10.00th=[ 309], 20.00th=[ 342], | 30.00th=[ 372], 40.00th=[ 405], 50.00th=[ 435], 60.00th=[ 468], | 70.00th=[ 510], 80.00th=[ 575], 90.00th=[ 659], 95.00th=[ 735], | 99.00th=[ 936], 99.50th=[ 953], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 110, per=24.73%, avg=41.80, stdev=21.06, samples=232 iops : min= 1, max= 27, avg= 9.87, stdev= 5.30, samples=232 write: IOPS=11, BW=44.6KiB/s (45.6kB/s)(5264KiB/118117msec); 0 zone resets slat (usec): min=41, max=22679, avg=510.53, stdev=1503.05 clat (msec): min=177, max=2073, avg=982.21, stdev=283.04 lat (msec): min=177, max=2074, avg=982.72, stdev=283.03 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 592], 10.00th=[ 651], 20.00th=[ 743], | 30.00th=[ 810], 40.00th=[ 885], 50.00th=[ 961], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1351], 95.00th=[ 1485], | 99.00th=[ 1770], 99.50th=[ 1854], 99.90th=[ 1955], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 7, max= 111, per=25.13%, avg=44.23, stdev=19.37, samples=232 iops : min= 1, max= 27, avg=10.48, stdev= 4.87, samples=232 lat (msec) : 20=0.04%, 50=0.16%, 100=0.27%, 250=1.02%, 500=32.54% lat (msec) : 750=23.28%, 1000=20.35%, 2000=22.30%, >=2000=0.04% cpu : usr=0.11%, sys=0.81%, ctx=4825, 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=145606: Tue Jun 23 12:49:37 2026 read: IOPS=10, BW=42.3KiB/s (43.3kB/s)(4984KiB/117881msec) slat (usec): min=52, max=81446, avg=16857.90, stdev=9487.41 clat (msec): min=20, max=1153, avg=454.34, stdev=149.54 lat (msec): min=25, max=1178, avg=471.20, stdev=152.27 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 268], 10.00th=[ 300], 20.00th=[ 342], | 30.00th=[ 368], 40.00th=[ 397], 50.00th=[ 426], 60.00th=[ 460], | 70.00th=[ 506], 80.00th=[ 567], 90.00th=[ 651], 95.00th=[ 726], | 99.00th=[ 919], 99.50th=[ 1028], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 120, per=24.89%, avg=42.06, stdev=21.62, samples=232 iops : min= 1, max= 30, avg= 9.94, stdev= 5.43, samples=232 write: IOPS=11, BW=44.6KiB/s (45.7kB/s)(5256KiB/117881msec); 0 zone resets slat (usec): min=53, max=12069, avg=412.83, stdev=950.74 clat (msec): min=153, max=2010, avg=987.07, stdev=288.34 lat (msec): min=154, max=2010, avg=987.48, stdev=288.38 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 575], 10.00th=[ 651], 20.00th=[ 751], | 30.00th=[ 818], 40.00th=[ 885], 50.00th=[ 961], 60.00th=[ 1036], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1351], 95.00th=[ 1502], | 99.00th=[ 1804], 99.50th=[ 1854], 99.90th=[ 1972], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 111, per=24.98%, avg=43.96, stdev=20.60, samples=232 iops : min= 1, max= 27, avg=10.41, stdev= 5.14, samples=232 lat (msec) : 50=0.20%, 100=0.31%, 250=1.72%, 500=32.58%, 750=22.46% lat (msec) : 1000=19.38%, 2000=23.32%, >=2000=0.04% cpu : usr=0.11%, sys=0.85%, ctx=4753, 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=145607: Tue Jun 23 12:49:37 2026 read: IOPS=10, BW=42.8KiB/s (43.9kB/s)(5060KiB/118129msec) slat (usec): min=2678, max=63444, avg=16910.80, stdev=9258.76 clat (msec): min=11, max=954, avg=459.43, stdev=135.55 lat (msec): min=21, max=979, avg=476.35, stdev=137.09 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 292], 10.00th=[ 317], 20.00th=[ 355], | 30.00th=[ 380], 40.00th=[ 409], 50.00th=[ 435], 60.00th=[ 472], | 70.00th=[ 510], 80.00th=[ 567], 90.00th=[ 642], 95.00th=[ 726], | 99.00th=[ 860], 99.50th=[ 902], 99.90th=[ 944], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 111, per=25.25%, avg=42.68, stdev=20.60, samples=231 iops : min= 1, max= 27, avg=10.10, stdev= 5.14, samples=231 write: IOPS=10, BW=43.8KiB/s (44.9kB/s)(5180KiB/118129msec); 0 zone resets slat (usec): min=41, max=49950, avg=587.51, stdev=2121.24 clat (msec): min=229, max=1957, avg=991.14, stdev=279.45 lat (msec): min=229, max=1957, avg=991.74, stdev=279.46 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 592], 10.00th=[ 659], 20.00th=[ 751], | 30.00th=[ 827], 40.00th=[ 894], 50.00th=[ 961], 60.00th=[ 1028], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1351], 95.00th=[ 1485], | 99.00th=[ 1821], 99.50th=[ 1854], 99.90th=[ 1955], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 7, max= 104, per=24.54%, avg=43.20, stdev=18.99, samples=234 iops : min= 1, max= 26, avg=10.22, stdev= 4.78, samples=234 lat (msec) : 20=0.04%, 50=0.12%, 100=0.23%, 250=0.78%, 500=33.36% lat (msec) : 750=22.73%, 1000=20.43%, 2000=22.30% cpu : usr=0.12%, sys=0.81%, ctx=4395, 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=170KiB/s (174kB/s), 42.1KiB/s-42.8KiB/s (43.1kB/s-43.9kB/s), io=19.6MiB (20.5MB), run=117881-118135msec WRITE: bw=177KiB/s (181kB/s), 43.8KiB/s-44.6KiB/s (44.9kB/s-45.7kB/s), io=20.4MiB (21.4MB), run=117881-118135msec 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=145630: Tue Jun 23 12:49:48 2026 read: IOPS=2, BW=81.5MiB/s (85.4MB/s)(40.0MiB/491msec) slat (nsec): min=28130k, max=28130k, avg=28130350.00, stdev= 0.00 clat (nsec): min=443938k, max=443938k, avg=443938200.00, stdev= 0.00 lat (nsec): min=472074k, max=472074k, avg=472074314.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 443], | 70.00th=[ 443], 80.00th=[ 443], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.86%, ctx=3, 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=81.5MiB/s (85.4MB/s), 81.5MiB/s-81.5MiB/s (85.4MB/s-85.4MB/s), io=40.0MiB (41.9MB), run=491-491msec 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