== sanity test 398c: run fio to test AIO ================= 06:00:28 (1787392828) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.437115 s, 96.0 MB/s osc.lustre-OST0000-osc-ffff9f1bc32f4800.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=180363: Sat Aug 22 06:01:07 2026 write: IOPS=90, BW=360KiB/s (369kB/s)(10.0MiB/28425msec); 0 zone resets slat (usec): min=46, max=18748, avg=276.20, stdev=761.65 clat (msec): min=22, max=348, avg=176.61, stdev=48.23 lat (msec): min=23, max=348, avg=176.89, stdev=48.24 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 110], 10.00th=[ 121], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 241], 95.00th=[ 271], | 99.00th=[ 313], 99.50th=[ 326], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 189, max= 517, per=24.94%, avg=358.95, stdev=83.17, samples=56 iops : min= 47, max= 129, avg=89.36, stdev=20.80, samples=56 lat (msec) : 50=0.08%, 100=3.40%, 250=89.06%, 500=7.46% cpu : usr=0.15%, sys=1.13%, ctx=2471, 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=180364: Sat Aug 22 06:01:07 2026 write: IOPS=90, BW=360KiB/s (369kB/s)(10.0MiB/28438msec); 0 zone resets slat (usec): min=38, max=14362, avg=288.49, stdev=758.08 clat (msec): min=44, max=337, avg=177.29, stdev=48.10 lat (msec): min=45, max=349, avg=177.58, stdev=48.12 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 110], 10.00th=[ 120], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 241], 95.00th=[ 271], | 99.00th=[ 309], 99.50th=[ 334], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 173, max= 551, per=24.99%, avg=359.57, stdev=80.53, samples=56 iops : min= 43, max= 137, avg=89.54, stdev=20.18, samples=56 lat (msec) : 50=0.12%, 100=1.95%, 250=90.35%, 500=7.58% cpu : usr=0.19%, sys=1.25%, ctx=2695, 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=180365: Sat Aug 22 06:01:07 2026 write: IOPS=89, BW=360KiB/s (369kB/s)(10.0MiB/28449msec); 0 zone resets slat (usec): min=52, max=27962, avg=305.30, stdev=943.23 clat (msec): min=34, max=334, avg=177.03, stdev=47.48 lat (msec): min=34, max=334, avg=177.33, stdev=47.49 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 112], 10.00th=[ 123], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 243], 95.00th=[ 266], | 99.00th=[ 305], 99.50th=[ 326], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 175, max= 541, per=24.97%, avg=359.34, stdev=81.58, samples=56 iops : min= 43, max= 135, avg=89.46, stdev=20.42, samples=56 lat (msec) : 50=0.08%, 100=2.77%, 250=88.91%, 500=8.24% cpu : usr=0.15%, sys=1.08%, ctx=2597, 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=180366: Sat Aug 22 06:01:07 2026 write: IOPS=90, BW=362KiB/s (370kB/s)(10.0MiB/28318msec); 0 zone resets slat (usec): min=48, max=17630, avg=302.28, stdev=794.90 clat (msec): min=28, max=346, avg=175.99, stdev=48.30 lat (msec): min=28, max=347, avg=176.30, stdev=48.30 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 110], 10.00th=[ 120], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 211], 90.00th=[ 241], 95.00th=[ 275], | 99.00th=[ 305], 99.50th=[ 321], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 347] bw ( KiB/s): min= 175, max= 525, per=25.04%, avg=360.34, stdev=85.67, samples=56 iops : min= 43, max= 131, avg=89.73, stdev=21.46, samples=56 lat (msec) : 50=0.08%, 100=2.38%, 250=88.55%, 500=8.98% cpu : usr=0.14%, sys=1.07%, ctx=2683, 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=1440KiB/s (1474kB/s), 360KiB/s-362KiB/s (369kB/s-370kB/s), io=40.0MiB (41.9MB), run=28318-28449msec 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=180392: Sat Aug 22 06:01:49 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(5048KiB/32159msec) slat (usec): min=2456, max=51922, avg=13673.54, stdev=7027.32 clat (msec): min=60, max=352, avg=189.42, stdev=40.62 lat (msec): min=86, max=372, avg=203.10, stdev=42.03 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 129], 10.00th=[ 142], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 243], 95.00th=[ 259], | 99.00th=[ 313], 99.50th=[ 326], 99.90th=[ 351], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 84, max= 239, per=24.87%, avg=155.17, stdev=31.73, samples=63 iops : min= 21, max= 59, avg=38.30, stdev= 7.87, samples=63 write: IOPS=40, BW=161KiB/s (165kB/s)(5192KiB/32159msec); 0 zone resets slat (usec): min=54, max=10346, avg=308.63, stdev=710.78 clat (msec): min=29, max=322, avg=195.78, stdev=38.82 lat (msec): min=29, max=322, avg=196.09, stdev=38.80 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 140], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 213], 80.00th=[ 228], 90.00th=[ 247], 95.00th=[ 266], | 99.00th=[ 296], 99.50th=[ 305], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 84, max= 239, per=24.77%, avg=160.75, stdev=36.24, samples=63 iops : min= 21, max= 59, avg=39.68, stdev= 9.06, samples=63 lat (msec) : 50=0.04%, 100=0.35%, 250=91.33%, 500=8.28% cpu : usr=0.25%, sys=1.79%, ctx=4634, 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=180393: Sat Aug 22 06:01:49 2026 read: IOPS=38, BW=155KiB/s (159kB/s)(4976KiB/32015msec) slat (usec): min=91, max=55605, avg=13597.57, stdev=6937.80 clat (msec): min=17, max=341, avg=189.20, stdev=40.96 lat (msec): min=17, max=373, avg=202.80, stdev=42.37 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 128], 10.00th=[ 140], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 243], 95.00th=[ 262], | 99.00th=[ 300], 99.50th=[ 317], 99.90th=[ 338], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 87, max= 238, per=24.74%, avg=154.37, stdev=36.79, samples=63 iops : min= 21, max= 59, avg=38.10, stdev= 9.24, samples=63 write: IOPS=41, BW=164KiB/s (168kB/s)(5264KiB/32015msec); 0 zone resets slat (usec): min=57, max=13967, avg=332.60, stdev=883.28 clat (msec): min=71, max=348, avg=196.67, stdev=40.82 lat (msec): min=72, max=348, avg=197.01, stdev=40.79 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 138], 10.00th=[ 148], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 197], 60.00th=[ 205], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 249], 95.00th=[ 271], | 99.00th=[ 309], 99.50th=[ 334], 99.90th=[ 342], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 110, max= 262, per=25.31%, avg=164.24, stdev=35.26, samples=63 iops : min= 27, max= 65, avg=40.54, stdev= 8.76, samples=63 lat (msec) : 20=0.04%, 100=0.47%, 250=91.37%, 500=8.12% cpu : usr=0.22%, sys=1.80%, ctx=4395, 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=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=180394: Sat Aug 22 06:01:49 2026 read: IOPS=38, BW=156KiB/s (159kB/s)(4984KiB/32034msec) slat (usec): min=3087, max=53276, avg=13569.44, stdev=7082.44 clat (msec): min=83, max=345, avg=189.70, stdev=41.70 lat (msec): min=92, max=358, avg=203.28, stdev=43.07 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 129], 10.00th=[ 138], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 222], 90.00th=[ 245], 95.00th=[ 264], | 99.00th=[ 313], 99.50th=[ 330], 99.90th=[ 342], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 79, max= 262, per=24.91%, avg=155.41, stdev=36.37, samples=63 iops : min= 19, max= 65, avg=38.37, stdev= 9.09, samples=63 write: IOPS=41, BW=164KiB/s (168kB/s)(5256KiB/32034msec); 0 zone resets slat (usec): min=56, max=11744, avg=310.75, stdev=771.29 clat (msec): min=52, max=337, avg=195.16, stdev=38.80 lat (msec): min=53, max=337, avg=195.47, stdev=38.79 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 140], 10.00th=[ 148], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 182], 50.00th=[ 194], 60.00th=[ 203], | 70.00th=[ 213], 80.00th=[ 228], 90.00th=[ 247], 95.00th=[ 266], | 99.00th=[ 300], 99.50th=[ 309], 99.90th=[ 334], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 63, max= 239, per=25.16%, avg=163.30, stdev=35.38, samples=63 iops : min= 15, max= 59, avg=40.32, stdev= 8.86, samples=63 lat (msec) : 100=0.23%, 250=91.72%, 500=8.05% cpu : usr=0.25%, sys=1.75%, ctx=4671, 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=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=180395: Sat Aug 22 06:01:49 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(5060KiB/32127msec) slat (usec): min=2713, max=61302, avg=13612.67, stdev=7286.97 clat (msec): min=104, max=369, avg=188.61, stdev=39.28 lat (msec): min=116, max=383, avg=202.22, stdev=41.00 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 131], 10.00th=[ 142], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 220], 90.00th=[ 241], 95.00th=[ 259], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 363], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 63, max= 270, per=25.11%, avg=156.67, stdev=36.95, samples=63 iops : min= 15, max= 67, avg=38.67, stdev= 9.26, samples=63 write: IOPS=40, BW=161KiB/s (165kB/s)(5180KiB/32127msec); 0 zone resets slat (usec): min=58, max=9400, avg=318.91, stdev=755.76 clat (msec): min=104, max=341, avg=197.07, stdev=39.43 lat (msec): min=104, max=341, avg=197.39, stdev=39.43 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 138], 10.00th=[ 150], 20.00th=[ 165], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 197], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 226], 90.00th=[ 249], 95.00th=[ 271], | 99.00th=[ 317], 99.50th=[ 326], 99.90th=[ 334], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 104, max= 230, per=24.66%, avg=160.02, stdev=30.14, samples=63 iops : min= 26, max= 57, avg=39.51, stdev= 7.50, samples=63 lat (msec) : 250=91.91%, 500=8.09% cpu : usr=0.32%, sys=1.91%, ctx=4746, 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=624KiB/s (639kB/s), 155KiB/s-157KiB/s (159kB/s-161kB/s), io=19.6MiB (20.5MB), run=32015-32159msec WRITE: bw=650KiB/s (665kB/s), 161KiB/s-164KiB/s (165kB/s-168kB/s), io=20.4MiB (21.4MB), run=32015-32159msec 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=180404: Sat Aug 22 06:01:59 2026 read: IOPS=2, BW=84.6MiB/s (88.7MB/s)(40.0MiB/473msec) slat (nsec): min=28429k, max=28429k, avg=28429036.00, stdev= 0.00 clat (nsec): min=415406k, max=415406k, avg=415406493.00, stdev= 0.00 lat (nsec): min=443839k, max=443839k, avg=443839245.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.54%, ctx=5, 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=84.6MiB/s (88.7MB/s), 84.6MiB/s-84.6MiB/s (88.7MB/s-88.7MB/s), io=40.0MiB (41.9MB), run=473-473msec 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