== sanity test 398c: run fio to test AIO ================= 20:34:55 (1787790895) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.420054 s, 99.9 MB/s osc.lustre-OST0000-osc-ffff89e972912000.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=180203: Wed Aug 26 20:35:29 2026 write: IOPS=100, BW=400KiB/s (410kB/s)(10.0MiB/25591msec); 0 zone resets slat (usec): min=25, max=11053, avg=243.78, stdev=705.31 clat (msec): min=25, max=315, avg=159.51, stdev=39.40 lat (msec): min=25, max=316, avg=159.76, stdev=39.42 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 93], 10.00th=[ 111], 20.00th=[ 128], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 180], 80.00th=[ 192], 90.00th=[ 211], 95.00th=[ 224], | 99.00th=[ 262], 99.50th=[ 271], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 317] bw ( KiB/s): min= 266, max= 764, per=25.12%, avg=400.34, stdev=92.35, samples=50 iops : min= 66, max= 191, avg=99.72, stdev=23.15, samples=50 lat (msec) : 50=0.23%, 100=6.09%, 250=91.95%, 500=1.72% cpu : usr=0.14%, sys=1.11%, ctx=2107, 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=180204: Wed Aug 26 20:35:29 2026 write: IOPS=99, BW=399KiB/s (408kB/s)(10.0MiB/25686msec); 0 zone resets slat (usec): min=22, max=9831, avg=243.99, stdev=625.11 clat (msec): min=16, max=309, avg=159.96, stdev=39.11 lat (msec): min=16, max=309, avg=160.21, stdev=39.12 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 93], 10.00th=[ 108], 20.00th=[ 130], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 178], 80.00th=[ 190], 90.00th=[ 207], 95.00th=[ 224], | 99.00th=[ 262], 99.50th=[ 284], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 254, max= 653, per=24.87%, avg=396.45, stdev=84.91, samples=51 iops : min= 63, max= 163, avg=98.78, stdev=21.27, samples=51 lat (msec) : 20=0.04%, 50=0.08%, 100=7.03%, 250=91.48%, 500=1.37% cpu : usr=0.21%, sys=1.11%, ctx=2642, 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=180205: Wed Aug 26 20:35:29 2026 write: IOPS=99, BW=399KiB/s (408kB/s)(10.0MiB/25690msec); 0 zone resets slat (usec): min=28, max=14138, avg=227.35, stdev=722.71 clat (msec): min=22, max=281, avg=159.54, stdev=38.88 lat (msec): min=22, max=281, avg=159.77, stdev=38.89 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 100], 10.00th=[ 107], 20.00th=[ 130], | 30.00th=[ 142], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 180], 80.00th=[ 190], 90.00th=[ 207], 95.00th=[ 224], | 99.00th=[ 266], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 254, max= 685, per=24.89%, avg=396.73, stdev=85.99, samples=51 iops : min= 63, max= 171, avg=98.82, stdev=21.56, samples=51 lat (msec) : 50=0.04%, 100=5.39%, 250=93.01%, 500=1.56% cpu : usr=0.22%, sys=1.02%, ctx=2363, 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=180206: Wed Aug 26 20:35:29 2026 write: IOPS=99, BW=399KiB/s (409kB/s)(10.0MiB/25635msec); 0 zone resets slat (usec): min=28, max=20211, avg=265.27, stdev=792.25 clat (msec): min=21, max=340, avg=159.32, stdev=40.33 lat (msec): min=26, max=340, avg=159.59, stdev=40.28 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 95], 10.00th=[ 107], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 178], 80.00th=[ 192], 90.00th=[ 211], 95.00th=[ 224], | 99.00th=[ 268], 99.50th=[ 284], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 262, max= 645, per=25.09%, avg=399.88, stdev=88.77, samples=50 iops : min= 65, max= 161, avg=99.64, stdev=22.26, samples=50 lat (msec) : 50=0.23%, 100=6.80%, 250=91.48%, 500=1.48% cpu : usr=0.20%, sys=1.21%, ctx=2075, 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=1594KiB/s (1633kB/s), 399KiB/s-400KiB/s (408kB/s-410kB/s), io=40.0MiB (41.9MB), run=25591-25690msec 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=180220: Wed Aug 26 20:36:07 2026 read: IOPS=39, BW=159KiB/s (163kB/s)(5048KiB/31780msec) slat (usec): min=3118, max=67648, avg=13673.11, stdev=8022.15 clat (msec): min=14, max=392, avg=187.50, stdev=51.27 lat (msec): min=18, max=411, avg=201.18, stdev=53.58 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 111], 10.00th=[ 128], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 232], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 334], 99.50th=[ 347], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 61, max= 288, per=24.97%, avg=157.56, stdev=42.39, samples=63 iops : min= 15, max= 72, avg=38.94, stdev=10.59, samples=63 write: IOPS=40, BW=163KiB/s (167kB/s)(5192KiB/31780msec); 0 zone resets slat (usec): min=27, max=13442, avg=230.38, stdev=707.03 clat (msec): min=33, max=389, avg=192.12, stdev=48.32 lat (msec): min=33, max=389, avg=192.35, stdev=48.32 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 120], 10.00th=[ 133], 20.00th=[ 150], | 30.00th=[ 165], 40.00th=[ 178], 50.00th=[ 192], 60.00th=[ 205], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 249], 95.00th=[ 275], | 99.00th=[ 347], 99.50th=[ 355], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 45, max= 272, per=24.67%, avg=162.11, stdev=44.01, samples=63 iops : min= 11, max= 68, avg=40.10, stdev=11.06, samples=63 lat (msec) : 20=0.04%, 50=0.16%, 100=1.60%, 250=87.73%, 500=10.47% cpu : usr=0.21%, sys=1.55%, ctx=4176, 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=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=180221: Wed Aug 26 20:36:07 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(4976KiB/31653msec) slat (usec): min=55, max=60792, avg=13215.05, stdev=7397.16 clat (msec): min=15, max=364, avg=186.40, stdev=50.11 lat (msec): min=30, max=388, avg=199.62, stdev=51.77 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 115], 10.00th=[ 126], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 228], 90.00th=[ 257], 95.00th=[ 271], | 99.00th=[ 326], 99.50th=[ 351], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 76, max= 248, per=24.79%, avg=156.40, stdev=39.20, samples=62 iops : min= 19, max= 62, avg=38.66, stdev= 9.79, samples=62 write: IOPS=41, BW=166KiB/s (170kB/s)(5264KiB/31653msec); 0 zone resets slat (usec): min=31, max=24101, avg=264.14, stdev=1014.38 clat (msec): min=81, max=383, avg=193.58, stdev=47.75 lat (msec): min=81, max=383, avg=193.85, stdev=47.80 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 123], 10.00th=[ 133], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 232], 90.00th=[ 253], 95.00th=[ 271], | 99.00th=[ 338], 99.50th=[ 355], 99.90th=[ 376], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 79, max= 326, per=25.32%, avg=166.32, stdev=45.75, samples=62 iops : min= 19, max= 81, avg=41.15, stdev=11.50, samples=62 lat (msec) : 20=0.04%, 50=0.08%, 100=1.02%, 250=87.42%, 500=11.45% cpu : usr=0.27%, sys=1.75%, ctx=4199, 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=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=180222: Wed Aug 26 20:36:07 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(4984KiB/31732msec) slat (usec): min=32, max=54133, avg=13190.59, stdev=7475.20 clat (msec): min=74, max=375, avg=187.01, stdev=50.74 lat (msec): min=85, max=385, avg=200.21, stdev=52.73 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 110], 10.00th=[ 125], 20.00th=[ 142], | 30.00th=[ 157], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 230], 90.00th=[ 253], 95.00th=[ 271], | 99.00th=[ 342], 99.50th=[ 359], 99.90th=[ 368], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 56, max= 288, per=24.84%, avg=156.73, stdev=44.70, samples=63 iops : min= 14, max= 72, avg=38.75, stdev=11.20, samples=63 write: IOPS=41, BW=166KiB/s (170kB/s)(5256KiB/31732msec); 0 zone resets slat (usec): min=32, max=25359, avg=268.47, stdev=1057.94 clat (msec): min=20, max=410, avg=193.89, stdev=48.62 lat (msec): min=21, max=412, avg=194.16, stdev=48.65 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 155], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 213], 80.00th=[ 230], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 347], 99.50th=[ 359], 99.90th=[ 401], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 55, max= 294, per=25.03%, avg=164.44, stdev=41.61, samples=63 iops : min= 13, max= 73, avg=40.67, stdev=10.41, samples=63 lat (msec) : 50=0.04%, 100=1.37%, 250=87.66%, 500=10.94% cpu : usr=0.26%, sys=1.53%, ctx=4237, 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=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=180223: Wed Aug 26 20:36:07 2026 read: IOPS=40, BW=160KiB/s (164kB/s)(5060KiB/31577msec) slat (usec): min=53, max=62757, avg=13371.47, stdev=7349.59 clat (msec): min=23, max=381, avg=186.80, stdev=50.73 lat (msec): min=31, max=402, avg=200.18, stdev=52.52 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 114], 10.00th=[ 126], 20.00th=[ 142], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 226], 90.00th=[ 251], 95.00th=[ 271], | 99.00th=[ 338], 99.50th=[ 351], 99.90th=[ 376], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 63, max= 262, per=25.39%, avg=160.21, stdev=40.55, samples=62 iops : min= 15, max= 65, avg=39.60, stdev=10.17, samples=62 write: IOPS=41, BW=164KiB/s (168kB/s)(5180KiB/31577msec); 0 zone resets slat (usec): min=31, max=12982, avg=219.71, stdev=670.12 clat (msec): min=84, max=380, avg=193.68, stdev=49.17 lat (msec): min=84, max=380, avg=193.91, stdev=49.19 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 124], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 167], 40.00th=[ 180], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 228], 90.00th=[ 247], 95.00th=[ 279], | 99.00th=[ 359], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 95, max= 280, per=24.93%, avg=163.76, stdev=41.59, samples=62 iops : min= 23, max= 70, avg=40.48, stdev=10.44, samples=62 lat (msec) : 50=0.12%, 100=1.13%, 250=89.02%, 500=9.73% cpu : usr=0.31%, sys=1.69%, ctx=4155, 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=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=631KiB/s (647kB/s), 157KiB/s-160KiB/s (161kB/s-164kB/s), io=19.6MiB (20.5MB), run=31577-31780msec WRITE: bw=657KiB/s (673kB/s), 163KiB/s-166KiB/s (167kB/s-170kB/s), io=20.4MiB (21.4MB), run=31577-31780msec 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=180231: Wed Aug 26 20:36:15 2026 read: IOPS=2, BW=102MiB/s (106MB/s)(40.0MiB/394msec) slat (nsec): min=23847k, max=23847k, avg=23846896.00, stdev= 0.00 clat (nsec): min=354780k, max=354780k, avg=354779818.00, stdev= 0.00 lat (nsec): min=378632k, max=378632k, avg=378632231.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 355], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] lat (msec) : 500=100.00% cpu : usr=0.25%, sys=3.56%, ctx=7, majf=0, minf=8 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=102MiB/s (106MB/s), 102MiB/s-102MiB/s (106MB/s-106MB/s), io=40.0MiB (41.9MB), run=394-394msec 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