== sanity test 398c: run fio to test AIO ================= 21:21:10 (1784942470) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.234897 s, 179 MB/s osc.lustre-OST0000-osc-ffff93a290c7d800.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=179449: Fri Jul 24 21:21:32 2026 write: IOPS=150, BW=600KiB/s (614kB/s)(10.0MiB/17065msec); 0 zone resets slat (usec): min=35, max=15723, avg=229.00, stdev=547.06 clat (msec): min=10, max=199, avg=105.55, stdev=25.81 lat (msec): min=10, max=199, avg=105.78, stdev=25.82 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 66], 10.00th=[ 77], 20.00th=[ 85], | 30.00th=[ 92], 40.00th=[ 100], 50.00th=[ 105], 60.00th=[ 110], | 70.00th=[ 115], 80.00th=[ 125], 90.00th=[ 142], 95.00th=[ 157], | 99.00th=[ 176], 99.50th=[ 182], 99.90th=[ 184], 99.95th=[ 184], | 99.99th=[ 201] bw ( KiB/s): min= 400, max= 873, per=25.09%, avg=602.06, stdev=105.02, samples=33 iops : min= 100, max= 218, avg=150.30, stdev=26.20, samples=33 lat (msec) : 20=0.12%, 50=1.29%, 100=40.27%, 250=58.32% cpu : usr=0.23%, sys=1.80%, ctx=2851, 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=179450: Fri Jul 24 21:21:32 2026 write: IOPS=150, BW=602KiB/s (616kB/s)(10.0MiB/17022msec); 0 zone resets slat (usec): min=36, max=13356, avg=237.19, stdev=574.02 clat (msec): min=9, max=233, avg=105.83, stdev=26.72 lat (msec): min=9, max=233, avg=106.07, stdev=26.73 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 67], 10.00th=[ 75], 20.00th=[ 84], | 30.00th=[ 93], 40.00th=[ 100], 50.00th=[ 105], 60.00th=[ 109], | 70.00th=[ 116], 80.00th=[ 124], 90.00th=[ 140], 95.00th=[ 159], | 99.00th=[ 180], 99.50th=[ 190], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 440, max= 880, per=25.18%, avg=604.36, stdev=103.14, samples=33 iops : min= 110, max= 220, avg=150.88, stdev=25.74, samples=33 lat (msec) : 10=0.08%, 20=0.08%, 50=1.29%, 100=40.23%, 250=58.32% cpu : usr=0.28%, sys=1.81%, ctx=2839, 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=179451: Fri Jul 24 21:21:32 2026 write: IOPS=150, BW=602KiB/s (617kB/s)(10.0MiB/17007msec); 0 zone resets slat (usec): min=35, max=8165, avg=237.01, stdev=503.04 clat (msec): min=23, max=247, avg=105.88, stdev=27.28 lat (msec): min=23, max=248, avg=106.12, stdev=27.27 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 67], 10.00th=[ 74], 20.00th=[ 84], | 30.00th=[ 91], 40.00th=[ 99], 50.00th=[ 104], 60.00th=[ 110], | 70.00th=[ 116], 80.00th=[ 127], 90.00th=[ 142], 95.00th=[ 155], | 99.00th=[ 180], 99.50th=[ 203], 99.90th=[ 249], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 448, max= 838, per=25.23%, avg=605.42, stdev=101.12, samples=33 iops : min= 112, max= 209, avg=151.12, stdev=25.26, samples=33 lat (msec) : 50=1.33%, 100=41.56%, 250=57.11% cpu : usr=0.28%, sys=2.05%, ctx=3062, 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=179452: Fri Jul 24 21:21:32 2026 write: IOPS=150, BW=600KiB/s (615kB/s)(10.0MiB/17053msec); 0 zone resets slat (usec): min=36, max=6921, avg=228.57, stdev=458.23 clat (msec): min=40, max=204, avg=105.55, stdev=25.96 lat (msec): min=41, max=205, avg=105.78, stdev=25.97 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 68], 10.00th=[ 74], 20.00th=[ 84], | 30.00th=[ 91], 40.00th=[ 100], 50.00th=[ 105], 60.00th=[ 110], | 70.00th=[ 116], 80.00th=[ 126], 90.00th=[ 140], 95.00th=[ 157], | 99.00th=[ 174], 99.50th=[ 180], 99.90th=[ 199], 99.95th=[ 201], | 99.99th=[ 205] bw ( KiB/s): min= 464, max= 774, per=25.13%, avg=603.03, stdev=92.10, samples=33 iops : min= 116, max= 193, avg=150.55, stdev=23.01, samples=33 lat (msec) : 50=0.82%, 100=40.39%, 250=58.79% cpu : usr=0.30%, sys=1.80%, ctx=2873, 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=2400KiB/s (2458kB/s), 600KiB/s-602KiB/s (614kB/s-617kB/s), io=40.0MiB (41.9MB), run=17007-17065msec 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=179464: Fri Jul 24 21:21:54 2026 read: IOPS=75, BW=302KiB/s (309kB/s)(5048KiB/16714msec) slat (usec): min=60, max=30307, avg=7306.31, stdev=4051.27 clat (msec): min=19, max=182, avg=98.85, stdev=24.75 lat (msec): min=19, max=191, avg=106.16, stdev=25.91 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 66], 10.00th=[ 71], 20.00th=[ 79], | 30.00th=[ 85], 40.00th=[ 90], 50.00th=[ 95], 60.00th=[ 102], | 70.00th=[ 110], 80.00th=[ 120], 90.00th=[ 136], 95.00th=[ 144], | 99.00th=[ 167], 99.50th=[ 169], 99.90th=[ 174], 99.95th=[ 182], | 99.99th=[ 182] bw ( KiB/s): min= 208, max= 456, per=25.15%, avg=301.00, stdev=49.92, samples=33 iops : min= 52, max= 114, avg=74.88, stdev=12.59, samples=33 write: IOPS=77, BW=311KiB/s (318kB/s)(5192KiB/16714msec); 0 zone resets slat (usec): min=41, max=6752, avg=240.18, stdev=453.64 clat (msec): min=51, max=169, avg=102.25, stdev=23.17 lat (msec): min=51, max=169, avg=102.50, stdev=23.19 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 71], 10.00th=[ 77], 20.00th=[ 83], | 30.00th=[ 87], 40.00th=[ 93], 50.00th=[ 99], 60.00th=[ 105], | 70.00th=[ 113], 80.00th=[ 123], 90.00th=[ 136], 95.00th=[ 150], | 99.00th=[ 163], 99.50th=[ 165], 99.90th=[ 169], 99.95th=[ 169], | 99.99th=[ 169] bw ( KiB/s): min= 191, max= 423, per=24.89%, avg=310.18, stdev=54.41, samples=33 iops : min= 47, max= 105, avg=77.21, stdev=13.58, samples=33 lat (msec) : 20=0.12%, 50=0.31%, 100=54.88%, 250=44.69% cpu : usr=0.27%, sys=2.83%, ctx=4787, 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=179465: Fri Jul 24 21:21:54 2026 read: IOPS=74, BW=297KiB/s (305kB/s)(4976KiB/16728msec) slat (usec): min=1515, max=31549, avg=7383.85, stdev=3902.77 clat (msec): min=9, max=176, avg=98.66, stdev=23.31 lat (msec): min=13, max=192, avg=106.05, stdev=24.56 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 66], 10.00th=[ 72], 20.00th=[ 80], | 30.00th=[ 85], 40.00th=[ 90], 50.00th=[ 96], 60.00th=[ 102], | 70.00th=[ 108], 80.00th=[ 118], 90.00th=[ 132], 95.00th=[ 142], | 99.00th=[ 163], 99.50th=[ 169], 99.90th=[ 174], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 208, max= 399, per=24.77%, avg=296.52, stdev=52.16, samples=33 iops : min= 52, max= 99, avg=73.76, stdev=13.03, samples=33 write: IOPS=78, BW=315KiB/s (322kB/s)(5264KiB/16728msec); 0 zone resets slat (usec): min=45, max=6764, avg=231.44, stdev=394.53 clat (msec): min=60, max=178, avg=101.71, stdev=22.13 lat (msec): min=60, max=178, avg=101.95, stdev=22.15 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 71], 10.00th=[ 77], 20.00th=[ 83], | 30.00th=[ 88], 40.00th=[ 93], 50.00th=[ 99], 60.00th=[ 104], | 70.00th=[ 112], 80.00th=[ 121], 90.00th=[ 136], 95.00th=[ 144], | 99.00th=[ 161], 99.50th=[ 165], 99.90th=[ 171], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 199, max= 399, per=25.27%, avg=314.91, stdev=51.89, samples=33 iops : min= 49, max= 99, avg=78.36, stdev=13.08, samples=33 lat (msec) : 10=0.04%, 20=0.08%, 100=55.74%, 250=44.14% cpu : usr=0.28%, sys=2.79%, ctx=4856, 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=179466: Fri Jul 24 21:21:54 2026 read: IOPS=74, BW=298KiB/s (305kB/s)(4984KiB/16730msec) slat (usec): min=56, max=29373, avg=7293.85, stdev=4053.34 clat (msec): min=26, max=181, avg=98.61, stdev=23.31 lat (msec): min=30, max=195, avg=105.91, stdev=24.52 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 67], 10.00th=[ 72], 20.00th=[ 80], | 30.00th=[ 85], 40.00th=[ 90], 50.00th=[ 94], 60.00th=[ 102], | 70.00th=[ 108], 80.00th=[ 117], 90.00th=[ 133], 95.00th=[ 144], | 99.00th=[ 163], 99.50th=[ 169], 99.90th=[ 180], 99.95th=[ 182], | 99.99th=[ 182] bw ( KiB/s): min= 199, max= 400, per=24.91%, avg=298.18, stdev=55.16, samples=33 iops : min= 49, max= 100, avg=74.18, stdev=13.81, samples=33 write: IOPS=78, BW=314KiB/s (322kB/s)(5256KiB/16730msec); 0 zone resets slat (usec): min=38, max=12635, avg=242.11, stdev=517.07 clat (msec): min=38, max=177, avg=102.24, stdev=22.48 lat (msec): min=39, max=178, avg=102.48, stdev=22.50 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 72], 10.00th=[ 78], 20.00th=[ 84], | 30.00th=[ 89], 40.00th=[ 94], 50.00th=[ 100], 60.00th=[ 104], | 70.00th=[ 111], 80.00th=[ 121], 90.00th=[ 136], 95.00th=[ 146], | 99.00th=[ 165], 99.50th=[ 169], 99.90th=[ 176], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 199, max= 408, per=25.12%, avg=312.94, stdev=54.99, samples=33 iops : min= 49, max= 102, avg=77.85, stdev=13.81, samples=33 lat (msec) : 50=0.12%, 100=54.84%, 250=45.04% cpu : usr=0.30%, sys=2.61%, ctx=4454, 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=179467: Fri Jul 24 21:21:54 2026 read: IOPS=75, BW=302KiB/s (309kB/s)(5060KiB/16755msec) slat (usec): min=77, max=27714, avg=7186.88, stdev=3757.07 clat (msec): min=53, max=172, avg=98.70, stdev=23.06 lat (msec): min=59, max=182, avg=105.90, stdev=24.02 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 68], 10.00th=[ 72], 20.00th=[ 79], | 30.00th=[ 84], 40.00th=[ 90], 50.00th=[ 96], 60.00th=[ 103], | 70.00th=[ 109], 80.00th=[ 117], 90.00th=[ 131], 95.00th=[ 142], | 99.00th=[ 163], 99.50th=[ 167], 99.90th=[ 174], 99.95th=[ 174], | 99.99th=[ 174] bw ( KiB/s): min= 152, max= 416, per=25.20%, avg=301.67, stdev=57.26, samples=33 iops : min= 38, max= 104, avg=75.06, stdev=14.35, samples=33 write: IOPS=77, BW=309KiB/s (317kB/s)(5180KiB/16755msec); 0 zone resets slat (usec): min=38, max=6246, avg=240.10, stdev=423.50 clat (msec): min=56, max=195, avg=102.26, stdev=22.78 lat (msec): min=56, max=195, avg=102.51, stdev=22.78 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 72], 10.00th=[ 77], 20.00th=[ 83], | 30.00th=[ 89], 40.00th=[ 93], 50.00th=[ 99], 60.00th=[ 105], | 70.00th=[ 113], 80.00th=[ 121], 90.00th=[ 134], 95.00th=[ 146], | 99.00th=[ 167], 99.50th=[ 176], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 199, max= 408, per=24.68%, avg=307.52, stdev=51.27, samples=33 iops : min= 49, max= 102, avg=76.52, stdev=12.92, samples=33 lat (msec) : 100=54.41%, 250=45.59% cpu : usr=0.27%, sys=2.69%, ctx=4704, 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=1198KiB/s (1226kB/s), 297KiB/s-302KiB/s (305kB/s-309kB/s), io=19.6MiB (20.5MB), run=16714-16755msec WRITE: bw=1247KiB/s (1277kB/s), 309KiB/s-315KiB/s (317kB/s-322kB/s), io=20.4MiB (21.4MB), run=16714-16755msec 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=179474: Fri Jul 24 21:22:00 2026 read: IOPS=3, BW=121MiB/s (127MB/s)(40.0MiB/330msec) slat (nsec): min=44396k, max=44396k, avg=44395806.00, stdev= 0.00 clat (nsec): min=263169k, max=263169k, avg=263169049.00, stdev= 0.00 lat (nsec): min=307570k, max=307570k, avg=307570055.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 264], 10.00th=[ 264], 20.00th=[ 264], | 30.00th=[ 264], 40.00th=[ 264], 50.00th=[ 264], 60.00th=[ 264], | 70.00th=[ 264], 80.00th=[ 264], 90.00th=[ 264], 95.00th=[ 264], | 99.00th=[ 264], 99.50th=[ 264], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=4.26%, ctx=5, majf=0, minf=9 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=121MiB/s (127MB/s), 121MiB/s-121MiB/s (127MB/s-127MB/s), io=40.0MiB (41.9MB), run=330-330msec 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