== sanity test 398c: run fio to test AIO ================= 21:00:32 (1780966832) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.464628 s, 90.3 MB/s osc.lustre-OST0000-osc-ffff95c590486800.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=123442: Mon Jun 8 21:03:14 2026 write: IOPS=16, BW=67.4KiB/s (69.1kB/s)(10.0MiB/151821msec); 0 zone resets slat (usec): min=23, max=22714, avg=371.05, stdev=1270.10 clat (msec): min=188, max=2003, avg=947.86, stdev=254.57 lat (msec): min=188, max=2005, avg=948.24, stdev=254.53 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 592], 10.00th=[ 651], 20.00th=[ 760], | 30.00th=[ 818], 40.00th=[ 869], 50.00th=[ 936], 60.00th=[ 986], | 70.00th=[ 1053], 80.00th=[ 1150], 90.00th=[ 1284], 95.00th=[ 1368], | 99.00th=[ 1653], 99.50th=[ 1854], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 247, per=25.30%, avg=68.06, stdev=33.32, samples=296 iops : min= 1, max= 61, avg=16.54, stdev= 8.32, samples=296 lat (msec) : 250=0.62%, 500=1.45%, 750=16.99%, 1000=42.27%, 2000=38.63% lat (msec) : >=2000=0.04% cpu : usr=0.06%, sys=0.34%, ctx=1702, 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=123443: Mon Jun 8 21:03:14 2026 write: IOPS=16, BW=67.6KiB/s (69.2kB/s)(10.0MiB/151481msec); 0 zone resets slat (usec): min=27, max=19024, avg=371.67, stdev=1314.52 clat (msec): min=93, max=2052, avg=945.98, stdev=258.50 lat (msec): min=93, max=2052, avg=946.35, stdev=258.47 clat percentiles (msec): | 1.00th=[ 266], 5.00th=[ 592], 10.00th=[ 667], 20.00th=[ 751], | 30.00th=[ 810], 40.00th=[ 869], 50.00th=[ 927], 60.00th=[ 986], | 70.00th=[ 1053], 80.00th=[ 1150], 90.00th=[ 1267], 95.00th=[ 1401], | 99.00th=[ 1703], 99.50th=[ 1754], 99.90th=[ 1989], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 7, max= 243, per=24.96%, avg=67.15, stdev=28.89, samples=300 iops : min= 1, max= 60, avg=16.31, stdev= 7.19, samples=300 lat (msec) : 100=0.20%, 250=0.66%, 500=2.27%, 750=17.15%, 1000=41.80% lat (msec) : 2000=37.85%, >=2000=0.08% cpu : usr=0.08%, sys=0.33%, ctx=1889, 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=123444: Mon Jun 8 21:03:14 2026 write: IOPS=16, BW=67.5KiB/s (69.2kB/s)(10.0MiB/151602msec); 0 zone resets slat (usec): min=24, max=18669, avg=342.74, stdev=1060.70 clat (msec): min=199, max=2008, avg=946.59, stdev=250.05 lat (msec): min=199, max=2008, avg=946.94, stdev=250.05 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 584], 10.00th=[ 667], 20.00th=[ 751], | 30.00th=[ 818], 40.00th=[ 869], 50.00th=[ 936], 60.00th=[ 986], | 70.00th=[ 1062], 80.00th=[ 1150], 90.00th=[ 1267], 95.00th=[ 1385], | 99.00th=[ 1653], 99.50th=[ 1703], 99.90th=[ 1871], 99.95th=[ 1921], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 255, per=24.96%, avg=67.14, stdev=32.75, samples=300 iops : min= 1, max= 63, avg=16.32, stdev= 8.18, samples=300 lat (msec) : 250=0.66%, 500=1.48%, 750=17.11%, 1000=42.66%, 2000=38.05% lat (msec) : >=2000=0.04% cpu : usr=0.06%, sys=0.34%, ctx=1889, 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=123445: Mon Jun 8 21:03:14 2026 write: IOPS=16, BW=67.4KiB/s (69.1kB/s)(10.0MiB/151824msec); 0 zone resets slat (usec): min=27, max=29564, avg=355.91, stdev=1316.90 clat (msec): min=190, max=1982, avg=947.91, stdev=252.88 lat (msec): min=191, max=1982, avg=948.27, stdev=252.84 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 592], 10.00th=[ 659], 20.00th=[ 760], | 30.00th=[ 810], 40.00th=[ 869], 50.00th=[ 936], 60.00th=[ 995], | 70.00th=[ 1053], 80.00th=[ 1150], 90.00th=[ 1267], 95.00th=[ 1385], | 99.00th=[ 1603], 99.50th=[ 1838], 99.90th=[ 1955], 99.95th=[ 1955], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 231, per=25.22%, avg=67.85, stdev=31.95, samples=297 iops : min= 1, max= 57, avg=16.49, stdev= 7.97, samples=297 lat (msec) : 250=0.66%, 500=2.19%, 750=16.29%, 1000=41.95%, 2000=38.91% cpu : usr=0.07%, sys=0.31%, ctx=1900, 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=270KiB/s (276kB/s), 67.4KiB/s-67.6KiB/s (69.1kB/s-69.2kB/s), io=40.0MiB (41.9MB), run=151481-151824msec 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=123489: Mon Jun 8 21:05:06 2026 read: IOPS=12, BW=48.7KiB/s (49.9kB/s)(5048KiB/103599msec) slat (usec): min=2191, max=46456, avg=12255.05, stdev=6810.92 clat (msec): min=6, max=934, avg=407.00, stdev=117.58 lat (msec): min=15, max=963, avg=419.26, stdev=118.61 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 259], 10.00th=[ 275], 20.00th=[ 309], | 30.00th=[ 338], 40.00th=[ 359], 50.00th=[ 388], 60.00th=[ 422], | 70.00th=[ 456], 80.00th=[ 498], 90.00th=[ 550], 95.00th=[ 625], | 99.00th=[ 785], 99.50th=[ 802], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 127, per=24.87%, avg=48.00, stdev=22.33, samples=206 iops : min= 1, max= 31, avg=11.50, stdev= 5.58, samples=206 write: IOPS=12, BW=50.1KiB/s (51.3kB/s)(5192KiB/103599msec); 0 zone resets slat (usec): min=28, max=20624, avg=412.83, stdev=1251.85 clat (msec): min=280, max=1817, avg=867.22, stdev=259.54 lat (msec): min=281, max=1817, avg=867.64, stdev=259.53 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 485], 10.00th=[ 558], 20.00th=[ 651], | 30.00th=[ 718], 40.00th=[ 776], 50.00th=[ 852], 60.00th=[ 919], | 70.00th=[ 978], 80.00th=[ 1053], 90.00th=[ 1200], 95.00th=[ 1385], | 99.00th=[ 1586], 99.50th=[ 1687], 99.90th=[ 1770], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 8, max= 110, per=24.57%, avg=49.38, stdev=20.20, samples=206 iops : min= 2, max= 27, avg=11.84, stdev= 5.07, samples=206 lat (msec) : 10=0.04%, 50=0.04%, 100=0.08%, 250=1.76%, 500=41.02% lat (msec) : 750=23.63%, 1000=19.77%, 2000=13.67% cpu : usr=0.14%, sys=0.84%, ctx=3346, 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=123490: Mon Jun 8 21:05:06 2026 read: IOPS=12, BW=48.0KiB/s (49.2kB/s)(4976KiB/103605msec) slat (usec): min=2077, max=47267, avg=12292.38, stdev=7062.54 clat (msec): min=15, max=926, avg=406.74, stdev=117.74 lat (msec): min=23, max=949, avg=419.05, stdev=118.99 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 255], 10.00th=[ 275], 20.00th=[ 305], | 30.00th=[ 338], 40.00th=[ 363], 50.00th=[ 397], 60.00th=[ 422], | 70.00th=[ 451], 80.00th=[ 498], 90.00th=[ 550], 95.00th=[ 625], | 99.00th=[ 768], 99.50th=[ 793], 99.90th=[ 902], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 116, per=24.47%, avg=47.23, stdev=22.34, samples=206 iops : min= 1, max= 29, avg=11.31, stdev= 5.60, samples=206 write: IOPS=12, BW=50.8KiB/s (52.0kB/s)(5264KiB/103605msec); 0 zone resets slat (usec): min=29, max=20649, avg=525.23, stdev=1489.17 clat (msec): min=266, max=1836, avg=861.58, stdev=260.60 lat (msec): min=267, max=1836, avg=862.11, stdev=260.58 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 485], 10.00th=[ 550], 20.00th=[ 642], | 30.00th=[ 701], 40.00th=[ 776], 50.00th=[ 844], 60.00th=[ 911], | 70.00th=[ 978], 80.00th=[ 1045], 90.00th=[ 1200], 95.00th=[ 1368], | 99.00th=[ 1603], 99.50th=[ 1670], 99.90th=[ 1770], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 7, max= 128, per=25.07%, avg=50.39, stdev=21.39, samples=205 iops : min= 1, max= 32, avg=12.09, stdev= 5.36, samples=205 lat (msec) : 20=0.08%, 50=0.04%, 100=0.12%, 250=1.88%, 500=40.04% lat (msec) : 750=24.53%, 1000=19.77%, 2000=13.55% cpu : usr=0.13%, sys=0.85%, ctx=3251, 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=123491: Mon Jun 8 21:05:06 2026 read: IOPS=12, BW=48.2KiB/s (49.4kB/s)(4984KiB/103338msec) slat (usec): min=2418, max=48064, avg=12674.34, stdev=7325.72 clat (msec): min=23, max=923, avg=407.31, stdev=123.83 lat (msec): min=35, max=956, avg=419.99, stdev=124.98 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 245], 10.00th=[ 275], 20.00th=[ 309], | 30.00th=[ 334], 40.00th=[ 368], 50.00th=[ 397], 60.00th=[ 426], | 70.00th=[ 456], 80.00th=[ 498], 90.00th=[ 567], 95.00th=[ 634], | 99.00th=[ 776], 99.50th=[ 818], 99.90th=[ 911], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 135, per=24.93%, avg=48.12, stdev=21.76, samples=204 iops : min= 1, max= 33, avg=11.53, stdev= 5.47, samples=204 write: IOPS=12, BW=50.9KiB/s (52.1kB/s)(5256KiB/103338msec); 0 zone resets slat (usec): min=28, max=17272, avg=443.81, stdev=1324.03 clat (msec): min=265, max=1766, avg=858.21, stdev=255.37 lat (msec): min=265, max=1766, avg=858.66, stdev=255.39 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 477], 10.00th=[ 567], 20.00th=[ 651], | 30.00th=[ 709], 40.00th=[ 776], 50.00th=[ 844], 60.00th=[ 902], | 70.00th=[ 969], 80.00th=[ 1028], 90.00th=[ 1200], 95.00th=[ 1334], | 99.00th=[ 1603], 99.50th=[ 1687], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 111, per=24.87%, avg=50.00, stdev=20.20, samples=205 iops : min= 1, max= 27, avg=12.00, stdev= 5.02, samples=205 lat (msec) : 50=0.31%, 100=0.12%, 250=2.54%, 500=39.30%, 750=23.83% lat (msec) : 1000=21.95%, 2000=11.95% cpu : usr=0.15%, sys=0.96%, ctx=3387, 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=123492: Mon Jun 8 21:05:06 2026 read: IOPS=12, BW=49.0KiB/s (50.2kB/s)(5060KiB/103176msec) slat (usec): min=70, max=45475, avg=12467.13, stdev=7013.44 clat (msec): min=12, max=917, avg=403.35, stdev=124.71 lat (msec): min=12, max=933, avg=415.82, stdev=125.90 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 239], 10.00th=[ 271], 20.00th=[ 305], | 30.00th=[ 334], 40.00th=[ 359], 50.00th=[ 393], 60.00th=[ 418], | 70.00th=[ 447], 80.00th=[ 493], 90.00th=[ 558], 95.00th=[ 634], | 99.00th=[ 768], 99.50th=[ 818], 99.90th=[ 911], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 119, per=25.13%, avg=48.50, stdev=24.05, samples=205 iops : min= 1, max= 29, avg=11.63, stdev= 6.01, samples=205 write: IOPS=12, BW=50.2KiB/s (51.4kB/s)(5180KiB/103176msec); 0 zone resets slat (usec): min=31, max=21756, avg=502.39, stdev=1473.77 clat (msec): min=121, max=1823, avg=867.23, stdev=266.11 lat (msec): min=121, max=1823, avg=867.73, stdev=266.15 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 468], 10.00th=[ 542], 20.00th=[ 651], | 30.00th=[ 718], 40.00th=[ 785], 50.00th=[ 844], 60.00th=[ 911], | 70.00th=[ 978], 80.00th=[ 1053], 90.00th=[ 1217], 95.00th=[ 1385], | 99.00th=[ 1603], 99.50th=[ 1687], 99.90th=[ 1770], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 8, max= 104, per=24.90%, avg=50.05, stdev=20.75, samples=202 iops : min= 2, max= 26, avg=12.01, stdev= 5.22, samples=202 lat (msec) : 20=0.12%, 50=0.20%, 100=0.16%, 250=3.05%, 500=40.00% lat (msec) : 750=22.85%, 1000=20.04%, 2000=13.59% cpu : usr=0.14%, sys=0.89%, ctx=3387, 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=194KiB/s (198kB/s), 48.0KiB/s-49.0KiB/s (49.2kB/s-50.2kB/s), io=19.6MiB (20.5MB), run=103176-103605msec WRITE: bw=202KiB/s (206kB/s), 50.1KiB/s-50.9KiB/s (51.3kB/s-52.1kB/s), io=20.4MiB (21.4MB), run=103176-103605msec 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=123511: Mon Jun 8 21:05:17 2026 read: IOPS=2, BW=80.6MiB/s (84.6MB/s)(40.0MiB/496msec) slat (nsec): min=99758k, max=99758k, avg=99757560.00, stdev= 0.00 clat (nsec): min=360029k, max=360029k, avg=360029039.00, stdev= 0.00 lat (nsec): min=459793k, max=459793k, avg=459793068.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 359], 10.00th=[ 359], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 359], 50.00th=[ 359], 60.00th=[ 359], | 70.00th=[ 359], 80.00th=[ 359], 90.00th=[ 359], 95.00th=[ 359], | 99.00th=[ 359], 99.50th=[ 359], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.64%, ctx=5, 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=80.6MiB/s (84.6MB/s), 80.6MiB/s-80.6MiB/s (84.6MB/s-84.6MB/s), io=40.0MiB (41.9MB), run=496-496msec debug=super ioctl neterror warning dlmtrace error emerg ha rpctrace vfstrace config console lfsck