== sanity test 398c: run fio to test AIO ================= 06:22:05 (1781000525) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.589976 s, 71.1 MB/s osc.lustre-OST0000-osc-ffff9405504d5800.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=180821: Tue Jun 9 06:22:41 2026 write: IOPS=97, BW=389KiB/s (398kB/s)(10.0MiB/26357msec); 0 zone resets slat (usec): min=47, max=47718, avg=341.19, stdev=1184.16 clat (msec): min=26, max=318, avg=163.33, stdev=40.29 lat (msec): min=26, max=318, avg=163.67, stdev=40.24 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 104], 10.00th=[ 114], 20.00th=[ 133], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 182], 80.00th=[ 194], 90.00th=[ 218], 95.00th=[ 241], | 99.00th=[ 271], 99.50th=[ 292], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 256, max= 596, per=25.02%, avg=387.88, stdev=71.94, samples=52 iops : min= 64, max= 149, avg=96.56, stdev=18.02, samples=52 lat (msec) : 50=0.12%, 100=3.48%, 250=93.28%, 500=3.12% cpu : usr=0.20%, sys=1.42%, ctx=3103, 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=180822: Tue Jun 9 06:22:41 2026 write: IOPS=97, BW=389KiB/s (398kB/s)(10.0MiB/26330msec); 0 zone resets slat (usec): min=42, max=19632, avg=300.84, stdev=857.11 clat (msec): min=46, max=316, avg=164.10, stdev=39.69 lat (msec): min=47, max=316, avg=164.40, stdev=39.70 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 103], 10.00th=[ 115], 20.00th=[ 134], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 182], 80.00th=[ 192], 90.00th=[ 218], 95.00th=[ 241], | 99.00th=[ 275], 99.50th=[ 296], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 317] bw ( KiB/s): min= 256, max= 597, per=25.08%, avg=388.75, stdev=71.54, samples=52 iops : min= 64, max= 149, avg=96.81, stdev=17.97, samples=52 lat (msec) : 50=0.04%, 100=3.91%, 250=92.89%, 500=3.16% cpu : usr=0.16%, sys=1.21%, ctx=2745, 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=180823: Tue Jun 9 06:22:41 2026 write: IOPS=96, BW=388KiB/s (397kB/s)(10.0MiB/26410msec); 0 zone resets slat (usec): min=50, max=26360, avg=332.73, stdev=1001.21 clat (msec): min=12, max=319, avg=163.44, stdev=40.08 lat (msec): min=13, max=320, avg=163.77, stdev=40.07 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 103], 10.00th=[ 113], 20.00th=[ 134], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 180], 80.00th=[ 194], 90.00th=[ 218], 95.00th=[ 243], | 99.00th=[ 264], 99.50th=[ 317], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 256, max= 597, per=24.90%, avg=385.92, stdev=74.18, samples=52 iops : min= 64, max= 149, avg=96.10, stdev=18.55, samples=52 lat (msec) : 20=0.04%, 50=0.04%, 100=3.71%, 250=92.11%, 500=4.10% cpu : usr=0.15%, sys=1.44%, ctx=3058, 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=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=180824: Tue Jun 9 06:22:41 2026 write: IOPS=96, BW=388KiB/s (397kB/s)(10.0MiB/26419msec); 0 zone resets slat (usec): min=39, max=15155, avg=296.62, stdev=747.06 clat (msec): min=53, max=322, avg=163.62, stdev=39.39 lat (msec): min=54, max=322, avg=163.92, stdev=39.41 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 107], 10.00th=[ 118], 20.00th=[ 132], | 30.00th=[ 142], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 171], | 70.00th=[ 182], 80.00th=[ 194], 90.00th=[ 220], 95.00th=[ 234], | 99.00th=[ 262], 99.50th=[ 292], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 256, max= 548, per=24.90%, avg=385.90, stdev=69.50, samples=52 iops : min= 64, max= 137, avg=96.06, stdev=17.45, samples=52 lat (msec) : 100=3.44%, 250=93.32%, 500=3.24% cpu : usr=0.14%, sys=1.21%, ctx=2684, 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=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=1550KiB/s (1588kB/s), 388KiB/s-389KiB/s (397kB/s-398kB/s), io=40.0MiB (41.9MB), run=26330-26419msec 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=180840: Tue Jun 9 06:23:21 2026 read: IOPS=41, BW=167KiB/s (171kB/s)(5048KiB/30277msec) slat (usec): min=2607, max=59505, avg=13495.50, stdev=7267.12 clat (msec): min=16, max=387, avg=176.70, stdev=43.63 lat (msec): min=22, max=425, avg=190.20, stdev=45.32 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 117], 10.00th=[ 126], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 209], 90.00th=[ 236], 95.00th=[ 255], | 99.00th=[ 305], 99.50th=[ 330], 99.90th=[ 376], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 82, max= 240, per=25.08%, avg=166.03, stdev=38.39, samples=60 iops : min= 20, max= 60, avg=41.07, stdev= 9.61, samples=60 write: IOPS=42, BW=171KiB/s (176kB/s)(5192KiB/30277msec); 0 zone resets slat (usec): min=55, max=12051, avg=315.13, stdev=843.71 clat (msec): min=87, max=379, avg=185.37, stdev=40.94 lat (msec): min=87, max=380, avg=185.70, stdev=40.95 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 126], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 239], 95.00th=[ 255], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 347], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 59, max= 280, per=24.85%, avg=171.23, stdev=39.02, samples=60 iops : min= 14, max= 70, avg=42.37, stdev= 9.87, samples=60 lat (msec) : 20=0.04%, 50=0.04%, 100=1.02%, 250=92.85%, 500=6.05% cpu : usr=0.24%, sys=1.97%, ctx=4583, 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=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=180841: Tue Jun 9 06:23:21 2026 read: IOPS=41, BW=164KiB/s (168kB/s)(4976KiB/30288msec) slat (usec): min=2623, max=56172, avg=13673.83, stdev=7715.53 clat (msec): min=18, max=370, avg=177.32, stdev=41.24 lat (msec): min=30, max=379, avg=191.00, stdev=42.84 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 117], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 232], 95.00th=[ 247], | 99.00th=[ 296], 99.50th=[ 313], 99.90th=[ 342], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 67, max= 262, per=24.68%, avg=163.38, stdev=38.89, samples=60 iops : min= 16, max= 65, avg=40.40, stdev= 9.77, samples=60 write: IOPS=43, BW=174KiB/s (178kB/s)(5264KiB/30288msec); 0 zone resets slat (usec): min=55, max=16587, avg=313.05, stdev=845.50 clat (msec): min=83, max=417, avg=185.56, stdev=40.92 lat (msec): min=83, max=418, avg=185.88, stdev=40.94 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 129], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 236], 95.00th=[ 262], | 99.00th=[ 309], 99.50th=[ 330], 99.90th=[ 363], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 111, max= 262, per=25.17%, avg=173.40, stdev=39.36, samples=60 iops : min= 27, max= 65, avg=42.93, stdev= 9.92, samples=60 lat (msec) : 20=0.04%, 50=0.04%, 100=0.74%, 250=93.83%, 500=5.35% cpu : usr=0.21%, sys=1.83%, ctx=4408, 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=180842: Tue Jun 9 06:23:21 2026 read: IOPS=41, BW=165KiB/s (169kB/s)(4984KiB/30237msec) slat (usec): min=2868, max=76423, avg=13454.48, stdev=7382.74 clat (msec): min=67, max=329, avg=175.78, stdev=40.23 lat (msec): min=73, max=344, avg=189.24, stdev=41.54 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 117], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 209], 90.00th=[ 230], 95.00th=[ 247], | 99.00th=[ 279], 99.50th=[ 296], 99.90th=[ 326], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 64, max= 254, per=24.84%, avg=164.42, stdev=39.47, samples=60 iops : min= 16, max= 63, avg=40.67, stdev= 9.86, samples=60 write: IOPS=43, BW=174KiB/s (178kB/s)(5256KiB/30237msec); 0 zone resets slat (usec): min=52, max=25049, avg=315.66, stdev=985.38 clat (msec): min=67, max=346, avg=186.05, stdev=41.14 lat (msec): min=67, max=346, avg=186.37, stdev=41.13 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 127], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 241], 95.00th=[ 262], | 99.00th=[ 317], 99.50th=[ 326], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 82, max= 254, per=25.09%, avg=172.85, stdev=39.31, samples=60 iops : min= 20, max= 63, avg=42.77, stdev= 9.95, samples=60 lat (msec) : 100=0.82%, 250=93.40%, 500=5.78% cpu : usr=0.21%, sys=1.73%, ctx=4309, 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=180843: Tue Jun 9 06:23:21 2026 read: IOPS=41, BW=168KiB/s (172kB/s)(5060KiB/30146msec) slat (usec): min=84, max=69453, avg=13405.95, stdev=7534.24 clat (msec): min=28, max=395, avg=177.98, stdev=42.91 lat (msec): min=28, max=407, avg=191.39, stdev=44.67 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 118], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 194], 80.00th=[ 211], 90.00th=[ 232], 95.00th=[ 257], | 99.00th=[ 305], 99.50th=[ 321], 99.90th=[ 388], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 111, max= 239, per=25.44%, avg=168.39, stdev=31.52, samples=59 iops : min= 27, max= 59, avg=41.66, stdev= 7.93, samples=59 write: IOPS=42, BW=172KiB/s (176kB/s)(5180KiB/30146msec); 0 zone resets slat (usec): min=51, max=11527, avg=308.14, stdev=757.69 clat (msec): min=92, max=454, avg=184.59, stdev=42.12 lat (msec): min=93, max=454, avg=184.90, stdev=42.14 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 125], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 239], 95.00th=[ 259], | 99.00th=[ 300], 99.50th=[ 313], 99.90th=[ 426], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 103, max= 248, per=24.95%, avg=171.92, stdev=37.93, samples=59 iops : min= 25, max= 62, avg=42.54, stdev= 9.51, samples=59 lat (msec) : 50=0.23%, 100=0.51%, 250=92.77%, 500=6.48% cpu : usr=0.20%, sys=1.77%, ctx=4455, majf=0, minf=15 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=663KiB/s (678kB/s), 164KiB/s-168KiB/s (168kB/s-172kB/s), io=19.6MiB (20.5MB), run=30146-30288msec WRITE: bw=690KiB/s (706kB/s), 171KiB/s-174KiB/s (176kB/s-178kB/s), io=20.4MiB (21.4MB), run=30146-30288msec 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=180851: Tue Jun 9 06:23:31 2026 read: IOPS=2, BW=91.7MiB/s (96.2MB/s)(40.0MiB/436msec) slat (nsec): min=37077k, max=37077k, avg=37076683.00, stdev= 0.00 clat (nsec): min=378319k, max=378319k, avg=378318930.00, stdev= 0.00 lat (nsec): min=415399k, max=415399k, avg=415399430.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 380], 10.00th=[ 380], 20.00th=[ 380], | 30.00th=[ 380], 40.00th=[ 380], 50.00th=[ 380], 60.00th=[ 380], | 70.00th=[ 380], 80.00th=[ 380], 90.00th=[ 380], 95.00th=[ 380], | 99.00th=[ 380], 99.50th=[ 380], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.99%, 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=91.7MiB/s (96.2MB/s), 91.7MiB/s-91.7MiB/s (96.2MB/s-96.2MB/s), io=40.0MiB (41.9MB), run=436-436msec 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