== sanity test 398c: run fio to test AIO ================= 23:00:30 (1789786830) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.647903 s, 64.7 MB/s osc.lustre-OST0000-osc-ffff8c5dc5421800.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=144675: Fri Sep 18 23:03:13 2026 write: IOPS=16, BW=67.5KiB/s (69.1kB/s)(10.0MiB/151804msec); 0 zone resets slat (usec): min=23, max=15527, avg=262.64, stdev=954.34 clat (msec): min=186, max=1944, avg=948.28, stdev=279.83 lat (msec): min=186, max=1944, avg=948.55, stdev=279.83 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 575], 10.00th=[ 667], 20.00th=[ 760], | 30.00th=[ 818], 40.00th=[ 869], 50.00th=[ 911], 60.00th=[ 969], | 70.00th=[ 1036], 80.00th=[ 1133], 90.00th=[ 1284], 95.00th=[ 1435], | 99.00th=[ 1838], 99.50th=[ 1888], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 247, per=24.93%, avg=67.07, stdev=33.44, samples=300 iops : min= 1, max= 61, avg=16.25, stdev= 8.37, samples=300 lat (msec) : 250=0.86%, 500=2.97%, 750=15.31%, 1000=45.94%, 2000=34.92% cpu : usr=0.05%, sys=0.26%, ctx=1695, 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=144676: Fri Sep 18 23:03:13 2026 write: IOPS=16, BW=67.4KiB/s (68.0kB/s)(10.0MiB/151971msec); 0 zone resets slat (usec): min=23, max=12733, avg=257.32, stdev=857.89 clat (msec): min=212, max=2000, avg=949.23, stdev=284.10 lat (msec): min=212, max=2000, avg=949.49, stdev=284.10 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 550], 10.00th=[ 667], 20.00th=[ 760], | 30.00th=[ 810], 40.00th=[ 860], 50.00th=[ 911], 60.00th=[ 969], | 70.00th=[ 1045], 80.00th=[ 1150], 90.00th=[ 1284], 95.00th=[ 1469], | 99.00th=[ 1854], 99.50th=[ 1888], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 255, per=25.61%, avg=68.90, stdev=34.60, samples=292 iops : min= 1, max= 63, avg=16.72, stdev= 8.66, samples=292 lat (msec) : 250=1.25%, 500=3.32%, 750=14.61%, 1000=44.80%, 2000=35.98% lat (msec) : >=2000=0.04% cpu : usr=0.06%, sys=0.29%, ctx=1912, 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=144677: Fri Sep 18 23:03:13 2026 write: IOPS=16, BW=67.4KiB/s (69.0kB/s)(10.0MiB/151960msec); 0 zone resets slat (usec): min=23, max=16424, avg=275.77, stdev=986.87 clat (msec): min=102, max=1999, avg=948.56, stdev=279.11 lat (msec): min=102, max=1999, avg=948.84, stdev=279.09 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 542], 10.00th=[ 667], 20.00th=[ 743], | 30.00th=[ 818], 40.00th=[ 869], 50.00th=[ 927], 60.00th=[ 969], | 70.00th=[ 1045], 80.00th=[ 1133], 90.00th=[ 1267], 95.00th=[ 1469], | 99.00th=[ 1821], 99.50th=[ 1921], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 247, per=24.94%, avg=67.08, stdev=33.34, samples=300 iops : min= 1, max= 61, avg=16.26, stdev= 8.36, samples=300 lat (msec) : 250=0.86%, 500=3.32%, 750=16.48%, 1000=43.83%, 2000=35.51% cpu : usr=0.08%, sys=0.29%, ctx=1997, 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=144678: Fri Sep 18 23:03:13 2026 write: IOPS=16, BW=67.3KiB/s (68.0kB/s)(10.0MiB/152060msec); 0 zone resets slat (usec): min=23, max=22399, avg=268.53, stdev=916.44 clat (msec): min=210, max=1968, avg=948.88, stdev=278.06 lat (msec): min=210, max=1968, avg=949.15, stdev=278.09 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 542], 10.00th=[ 667], 20.00th=[ 751], | 30.00th=[ 810], 40.00th=[ 869], 50.00th=[ 919], 60.00th=[ 969], | 70.00th=[ 1036], 80.00th=[ 1133], 90.00th=[ 1267], 95.00th=[ 1485], | 99.00th=[ 1838], 99.50th=[ 1888], 99.90th=[ 1938], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 254, per=24.93%, avg=67.07, stdev=31.08, samples=300 iops : min= 1, max= 63, avg=16.26, stdev= 7.83, samples=300 lat (msec) : 250=0.66%, 500=3.09%, 750=16.29%, 1000=44.77%, 2000=35.20% cpu : usr=0.06%, sys=0.27%, ctx=1909, 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 Run status group 0 (all jobs): WRITE: bw=269KiB/s (276kB/s), 67.3KiB/s-67.5KiB/s (68.0kB/s-69.1kB/s), io=40.0MiB (41.9MB), run=151804-152060msec 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=144721: Fri Sep 18 23:05:02 2026 read: IOPS=12, BW=51.3KiB/s (52.5kB/s)(5048KiB/98461msec) slat (usec): min=44, max=70400, avg=14238.36, stdev=7936.22 clat (msec): min=11, max=1153, avg=382.56, stdev=118.52 lat (msec): min=22, max=1173, avg=396.81, stdev=120.19 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 218], 10.00th=[ 257], 20.00th=[ 292], | 30.00th=[ 326], 40.00th=[ 342], 50.00th=[ 372], 60.00th=[ 397], | 70.00th=[ 422], 80.00th=[ 468], 90.00th=[ 523], 95.00th=[ 609], | 99.00th=[ 735], 99.50th=[ 818], 99.90th=[ 978], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 144, per=25.27%, avg=51.31, stdev=24.90, samples=193 iops : min= 1, max= 36, avg=12.33, stdev= 6.26, samples=193 write: IOPS=13, BW=52.7KiB/s (53.0kB/s)(5192KiB/98461msec); 0 zone resets slat (usec): min=33, max=16703, avg=386.14, stdev=1150.05 clat (msec): min=150, max=1822, avg=826.49, stdev=245.97 lat (msec): min=150, max=1822, avg=826.88, stdev=246.00 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 485], 10.00th=[ 535], 20.00th=[ 617], | 30.00th=[ 684], 40.00th=[ 760], 50.00th=[ 810], 60.00th=[ 860], | 70.00th=[ 919], 80.00th=[ 1003], 90.00th=[ 1150], 95.00th=[ 1250], | 99.00th=[ 1620], 99.50th=[ 1720], 99.90th=[ 1787], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7, max= 126, per=24.97%, avg=52.69, stdev=21.67, samples=193 iops : min= 1, max= 31, avg=12.67, stdev= 5.45, samples=193 lat (msec) : 20=0.08%, 50=0.20%, 100=0.16%, 250=4.26%, 500=41.41% lat (msec) : 750=22.73%, 1000=20.78%, 2000=10.39% cpu : usr=0.15%, sys=0.87%, ctx=5019, 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=144722: Fri Sep 18 23:05:02 2026 read: IOPS=12, BW=50.4KiB/s (51.6kB/s)(4976KiB/98814msec) slat (usec): min=2782, max=57666, avg=14272.23, stdev=7815.55 clat (msec): min=10, max=902, avg=379.20, stdev=115.84 lat (msec): min=29, max=908, avg=393.48, stdev=117.48 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 220], 10.00th=[ 255], 20.00th=[ 296], | 30.00th=[ 317], 40.00th=[ 342], 50.00th=[ 368], 60.00th=[ 393], | 70.00th=[ 418], 80.00th=[ 464], 90.00th=[ 531], 95.00th=[ 592], | 99.00th=[ 701], 99.50th=[ 760], 99.90th=[ 860], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 127, per=24.51%, avg=49.77, stdev=24.41, samples=196 iops : min= 1, max= 31, avg=11.94, stdev= 6.13, samples=196 write: IOPS=13, BW=53.3KiB/s (54.6kB/s)(5264KiB/98814msec); 0 zone resets slat (usec): min=23, max=16084, avg=388.96, stdev=1124.82 clat (msec): min=189, max=1824, avg=827.19, stdev=251.32 lat (msec): min=189, max=1824, avg=827.58, stdev=251.28 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 489], 10.00th=[ 518], 20.00th=[ 625], | 30.00th=[ 684], 40.00th=[ 760], 50.00th=[ 810], 60.00th=[ 860], | 70.00th=[ 911], 80.00th=[ 1003], 90.00th=[ 1150], 95.00th=[ 1301], | 99.00th=[ 1636], 99.50th=[ 1720], 99.90th=[ 1804], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7, max= 104, per=24.96%, avg=52.67, stdev=22.55, samples=196 iops : min= 1, max= 26, avg=12.66, stdev= 5.66, samples=196 lat (msec) : 20=0.08%, 50=0.35%, 100=0.16%, 250=3.52%, 500=41.17% lat (msec) : 750=23.01%, 1000=21.45%, 2000=10.27% cpu : usr=0.14%, sys=0.87%, ctx=4831, 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=144723: Fri Sep 18 23:05:02 2026 read: IOPS=12, BW=50.4KiB/s (51.6kB/s)(4984KiB/98845msec) slat (usec): min=3110, max=71017, avg=14693.39, stdev=8070.52 clat (msec): min=15, max=826, avg=382.49, stdev=111.30 lat (msec): min=29, max=843, avg=397.19, stdev=112.96 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 222], 10.00th=[ 264], 20.00th=[ 300], | 30.00th=[ 326], 40.00th=[ 347], 50.00th=[ 372], 60.00th=[ 393], | 70.00th=[ 422], 80.00th=[ 468], 90.00th=[ 527], 95.00th=[ 592], | 99.00th=[ 693], 99.50th=[ 726], 99.90th=[ 793], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 7, max= 136, per=24.75%, avg=50.25, stdev=24.00, samples=195 iops : min= 1, max= 34, avg=12.07, stdev= 5.99, samples=195 write: IOPS=13, BW=53.2KiB/s (54.5kB/s)(5256KiB/98845msec); 0 zone resets slat (usec): min=26, max=18195, avg=371.16, stdev=1044.93 clat (msec): min=97, max=1784, avg=824.78, stdev=259.40 lat (msec): min=97, max=1784, avg=825.16, stdev=259.42 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 460], 10.00th=[ 514], 20.00th=[ 617], | 30.00th=[ 693], 40.00th=[ 743], 50.00th=[ 802], 60.00th=[ 852], | 70.00th=[ 919], 80.00th=[ 1011], 90.00th=[ 1167], 95.00th=[ 1301], | 99.00th=[ 1703], 99.50th=[ 1770], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 15, max= 110, per=24.81%, avg=52.36, stdev=20.79, samples=196 iops : min= 3, max= 27, avg=12.59, stdev= 5.26, samples=196 lat (msec) : 20=0.12%, 50=0.20%, 100=0.31%, 250=3.28%, 500=42.15% lat (msec) : 750=23.59%, 1000=19.65%, 2000=10.70% cpu : usr=0.14%, sys=0.87%, ctx=4831, 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=144724: Fri Sep 18 23:05:02 2026 read: IOPS=12, BW=51.3KiB/s (52.5kB/s)(5060KiB/98639msec) slat (usec): min=2777, max=60321, avg=14499.59, stdev=7924.21 clat (msec): min=17, max=864, avg=384.85, stdev=115.07 lat (msec): min=30, max=874, avg=399.36, stdev=116.88 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 226], 10.00th=[ 259], 20.00th=[ 296], | 30.00th=[ 321], 40.00th=[ 351], 50.00th=[ 372], 60.00th=[ 393], | 70.00th=[ 426], 80.00th=[ 468], 90.00th=[ 535], 95.00th=[ 600], | 99.00th=[ 743], 99.50th=[ 760], 99.90th=[ 802], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 15, max= 136, per=25.38%, avg=51.53, stdev=21.56, samples=193 iops : min= 3, max= 34, avg=12.38, stdev= 5.41, samples=193 write: IOPS=13, BW=52.5KiB/s (53.8kB/s)(5180KiB/98639msec); 0 zone resets slat (usec): min=28, max=20987, avg=387.79, stdev=1142.52 clat (msec): min=268, max=1773, avg=825.82, stdev=252.35 lat (msec): min=268, max=1773, avg=826.21, stdev=252.36 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 477], 10.00th=[ 523], 20.00th=[ 617], | 30.00th=[ 684], 40.00th=[ 760], 50.00th=[ 810], 60.00th=[ 860], | 70.00th=[ 911], 80.00th=[ 1003], 90.00th=[ 1150], 95.00th=[ 1318], | 99.00th=[ 1603], 99.50th=[ 1737], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 112, per=24.62%, avg=51.94, stdev=21.23, samples=195 iops : min= 1, max= 28, avg=12.49, stdev= 5.36, samples=195 lat (msec) : 20=0.04%, 50=0.08%, 100=0.23%, 250=3.71%, 500=42.81% lat (msec) : 750=21.37%, 1000=21.68%, 2000=10.08% cpu : usr=0.14%, sys=0.91%, ctx=5114, 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=203KiB/s (208kB/s), 50.4KiB/s-51.3KiB/s (51.6kB/s-52.5kB/s), io=19.6MiB (20.5MB), run=98461-98845msec WRITE: bw=211KiB/s (216kB/s), 52.5KiB/s-53.3KiB/s (53.8kB/s-54.6kB/s), io=20.4MiB (21.4MB), run=98461-98845msec 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=144743: Fri Sep 18 23:05:10 2026 read: IOPS=1, BW=60.2MiB/s (63.2MB/s)(40.0MiB/664msec) slat (nsec): min=44941k, max=44941k, avg=44941021.00, stdev= 0.00 clat (nsec): min=596686k, max=596686k, avg=596686264.00, stdev= 0.00 lat (nsec): min=641633k, max=641633k, avg=641632569.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.26%, ctx=5, majf=0, minf=7 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=60.2MiB/s (63.2MB/s), 60.2MiB/s-60.2MiB/s (63.2MB/s-63.2MB/s), io=40.0MiB (41.9MB), run=664-664msec 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