== sanity test 398c: run fio to test AIO ================= 12:31:45 (1790785905) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.541742 s, 77.4 MB/s osc.lustre-OST0000-osc-ffff98e798032000.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=180876: Wed Sep 30 12:32:20 2026 write: IOPS=103, BW=413KiB/s (423kB/s)(10.0MiB/24813msec); 0 zone resets slat (usec): min=24, max=11986, avg=208.63, stdev=681.68 clat (msec): min=28, max=309, avg=154.71, stdev=32.71 lat (msec): min=28, max=310, avg=154.93, stdev=32.70 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 110], 10.00th=[ 116], 20.00th=[ 128], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 161], | 70.00th=[ 167], 80.00th=[ 178], 90.00th=[ 192], 95.00th=[ 211], | 99.00th=[ 271], 99.50th=[ 300], 99.90th=[ 300], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 149, max= 576, per=24.96%, avg=411.39, stdev=76.47, samples=49 iops : min= 37, max= 144, avg=102.53, stdev=19.11, samples=49 lat (msec) : 50=0.04%, 100=1.88%, 250=96.76%, 500=1.33% cpu : usr=0.23%, sys=0.99%, ctx=2698, 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=180877: Wed Sep 30 12:32:20 2026 write: IOPS=103, BW=412KiB/s (422kB/s)(10.0MiB/24850msec); 0 zone resets slat (usec): min=29, max=11957, avg=211.59, stdev=677.57 clat (msec): min=77, max=298, avg=154.52, stdev=31.66 lat (msec): min=78, max=298, avg=154.74, stdev=31.66 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 108], 10.00th=[ 117], 20.00th=[ 129], | 30.00th=[ 138], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 159], | 70.00th=[ 167], 80.00th=[ 178], 90.00th=[ 192], 95.00th=[ 211], | 99.00th=[ 251], 99.50th=[ 275], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 250, max= 552, per=24.95%, avg=411.24, stdev=67.00, samples=49 iops : min= 62, max= 138, avg=102.49, stdev=16.79, samples=49 lat (msec) : 100=2.07%, 250=96.91%, 500=1.02% cpu : usr=0.17%, sys=0.97%, ctx=2731, 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=180878: Wed Sep 30 12:32:20 2026 write: IOPS=103, BW=413KiB/s (423kB/s)(10.0MiB/24812msec); 0 zone resets slat (usec): min=29, max=18825, avg=199.62, stdev=719.46 clat (msec): min=18, max=299, avg=154.72, stdev=32.43 lat (msec): min=18, max=299, avg=154.92, stdev=32.43 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 105], 10.00th=[ 117], 20.00th=[ 128], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 161], | 70.00th=[ 169], 80.00th=[ 180], 90.00th=[ 194], 95.00th=[ 207], | 99.00th=[ 257], 99.50th=[ 284], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 244, max= 598, per=25.04%, avg=412.59, stdev=67.36, samples=49 iops : min= 61, max= 149, avg=102.82, stdev=16.84, samples=49 lat (msec) : 20=0.04%, 50=0.08%, 100=2.27%, 250=96.48%, 500=1.13% cpu : usr=0.15%, sys=0.96%, ctx=2573, 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=180879: Wed Sep 30 12:32:20 2026 write: IOPS=103, BW=412KiB/s (422kB/s)(10.0MiB/24847msec); 0 zone resets slat (usec): min=29, max=11492, avg=221.29, stdev=714.90 clat (msec): min=8, max=296, avg=154.44, stdev=32.11 lat (msec): min=9, max=296, avg=154.67, stdev=32.11 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 110], 10.00th=[ 116], 20.00th=[ 128], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 161], | 70.00th=[ 167], 80.00th=[ 178], 90.00th=[ 192], 95.00th=[ 207], | 99.00th=[ 247], 99.50th=[ 266], 99.90th=[ 292], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 250, max= 576, per=24.97%, avg=411.57, stdev=65.32, samples=49 iops : min= 62, max= 144, avg=102.57, stdev=16.35, samples=49 lat (msec) : 10=0.04%, 50=0.16%, 100=1.91%, 250=96.91%, 500=0.98% cpu : usr=0.21%, sys=1.17%, ctx=2918, 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=1648KiB/s (1688kB/s), 412KiB/s-413KiB/s (422kB/s-423kB/s), io=40.0MiB (41.9MB), run=24812-24850msec 0% of I/O are 1-page (PAGE_SIZE=4096), max 50% 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=180892: Wed Sep 30 12:32:57 2026 read: IOPS=42, BW=170KiB/s (174kB/s)(5048KiB/29711msec) slat (usec): min=113, max=66154, avg=13010.40, stdev=7778.36 clat (msec): min=28, max=427, avg=173.35, stdev=52.68 lat (msec): min=31, max=442, avg=186.37, stdev=54.98 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 102], 10.00th=[ 113], 20.00th=[ 131], | 30.00th=[ 144], 40.00th=[ 157], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 194], 80.00th=[ 213], 90.00th=[ 239], 95.00th=[ 275], | 99.00th=[ 334], 99.50th=[ 355], 99.90th=[ 418], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 37, max= 279, per=24.97%, avg=168.58, stdev=49.73, samples=59 iops : min= 9, max= 69, avg=41.71, stdev=12.42, samples=59 write: IOPS=43, BW=175KiB/s (179kB/s)(5192KiB/29711msec); 0 zone resets slat (usec): min=36, max=10789, avg=192.07, stdev=565.76 clat (msec): min=31, max=406, avg=181.36, stdev=50.67 lat (msec): min=31, max=406, avg=181.55, stdev=50.64 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 114], 10.00th=[ 122], 20.00th=[ 138], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 247], 95.00th=[ 279], | 99.00th=[ 330], 99.50th=[ 351], 99.90th=[ 388], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 45, max= 271, per=24.73%, avg=173.83, stdev=42.33, samples=59 iops : min= 11, max= 67, avg=43.03, stdev=10.52, samples=59 lat (msec) : 50=0.35%, 100=2.85%, 250=88.05%, 500=8.75% cpu : usr=0.21%, sys=1.76%, ctx=4397, 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=180893: Wed Sep 30 12:32:57 2026 read: IOPS=42, BW=169KiB/s (173kB/s)(4976KiB/29429msec) slat (usec): min=26, max=53713, avg=13108.61, stdev=7761.05 clat (msec): min=11, max=465, avg=175.34, stdev=55.56 lat (msec): min=23, max=491, avg=188.45, stdev=57.77 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 105], 10.00th=[ 117], 20.00th=[ 131], | 30.00th=[ 144], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 211], 90.00th=[ 243], 95.00th=[ 275], | 99.00th=[ 372], 99.50th=[ 401], 99.90th=[ 451], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 80, max= 296, per=24.96%, avg=168.50, stdev=47.47, samples=58 iops : min= 20, max= 74, avg=41.69, stdev=11.87, samples=58 write: IOPS=44, BW=179KiB/s (183kB/s)(5264KiB/29429msec); 0 zone resets slat (usec): min=27, max=11330, avg=180.53, stdev=515.21 clat (msec): min=80, max=465, avg=179.10, stdev=49.58 lat (msec): min=80, max=465, avg=179.28, stdev=49.58 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 112], 10.00th=[ 124], 20.00th=[ 138], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 213], 90.00th=[ 243], 95.00th=[ 268], | 99.00th=[ 342], 99.50th=[ 372], 99.90th=[ 426], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 95, max= 279, per=25.51%, avg=179.36, stdev=45.85, samples=58 iops : min= 23, max= 69, avg=44.40, stdev=11.44, samples=58 lat (msec) : 20=0.04%, 50=0.23%, 100=2.15%, 250=89.34%, 500=8.24% cpu : usr=0.21%, sys=1.50%, ctx=3759, 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=180894: Wed Sep 30 12:32:57 2026 read: IOPS=42, BW=169KiB/s (173kB/s)(4984KiB/29561msec) slat (usec): min=2152, max=64204, avg=12883.61, stdev=7837.22 clat (msec): min=18, max=441, avg=175.28, stdev=50.76 lat (msec): min=26, max=460, avg=188.17, stdev=53.00 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 106], 10.00th=[ 118], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 209], 90.00th=[ 239], 95.00th=[ 271], | 99.00th=[ 334], 99.50th=[ 355], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 37, max= 271, per=24.97%, avg=168.55, stdev=48.34, samples=58 iops : min= 9, max= 67, avg=41.71, stdev=12.06, samples=58 write: IOPS=44, BW=178KiB/s (182kB/s)(5256KiB/29561msec); 0 zone resets slat (usec): min=34, max=9973, avg=188.08, stdev=587.49 clat (msec): min=57, max=387, avg=178.58, stdev=51.21 lat (msec): min=57, max=387, avg=178.77, stdev=51.21 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 109], 10.00th=[ 121], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 245], 95.00th=[ 279], | 99.00th=[ 326], 99.50th=[ 351], 99.90th=[ 384], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 45, max= 311, per=25.23%, avg=177.36, stdev=52.97, samples=58 iops : min= 11, max= 77, avg=43.91, stdev=13.23, samples=58 lat (msec) : 20=0.04%, 50=0.04%, 100=2.46%, 250=89.10%, 500=8.36% cpu : usr=0.25%, sys=1.53%, ctx=3770, 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=180895: Wed Sep 30 12:32:57 2026 read: IOPS=42, BW=170KiB/s (174kB/s)(5060KiB/29713msec) slat (usec): min=48, max=61403, avg=12958.28, stdev=7725.03 clat (msec): min=37, max=408, avg=174.68, stdev=50.65 lat (msec): min=37, max=428, avg=187.64, stdev=52.93 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 108], 10.00th=[ 117], 20.00th=[ 133], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 192], 80.00th=[ 209], 90.00th=[ 243], 95.00th=[ 271], | 99.00th=[ 334], 99.50th=[ 359], 99.90th=[ 393], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 30, max= 248, per=25.09%, avg=169.39, stdev=44.16, samples=59 iops : min= 7, max= 62, avg=41.92, stdev=11.06, samples=59 write: IOPS=43, BW=174KiB/s (179kB/s)(5180KiB/29713msec); 0 zone resets slat (usec): min=30, max=11342, avg=235.00, stdev=774.39 clat (msec): min=37, max=402, avg=180.29, stdev=50.35 lat (msec): min=38, max=402, avg=180.53, stdev=50.38 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 110], 10.00th=[ 124], 20.00th=[ 138], | 30.00th=[ 150], 40.00th=[ 161], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 201], 80.00th=[ 218], 90.00th=[ 247], 95.00th=[ 275], | 99.00th=[ 321], 99.50th=[ 363], 99.90th=[ 388], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 37, max= 263, per=24.61%, avg=173.00, stdev=45.98, samples=59 iops : min= 9, max= 65, avg=42.83, stdev=11.44, samples=59 lat (msec) : 50=0.23%, 100=2.11%, 250=88.79%, 500=8.87% cpu : usr=0.18%, sys=1.52%, ctx=4387, 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=675KiB/s (692kB/s), 169KiB/s-170KiB/s (173kB/s-174kB/s), io=19.6MiB (20.5MB), run=29429-29713msec WRITE: bw=703KiB/s (720kB/s), 174KiB/s-179KiB/s (179kB/s-183kB/s), io=20.4MiB (21.4MB), run=29429-29713msec 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=180905: Wed Sep 30 12:33:05 2026 read: IOPS=1, BW=64.5MiB/s (67.7MB/s)(40.0MiB/620msec) slat (nsec): min=44860k, max=44860k, avg=44859985.00, stdev= 0.00 clat (nsec): min=551594k, max=551594k, avg=551594051.00, stdev= 0.00 lat (nsec): min=596458k, max=596458k, avg=596458052.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.94%, ctx=8, 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=64.5MiB/s (67.7MB/s), 64.5MiB/s-64.5MiB/s (67.7MB/s-67.7MB/s), io=40.0MiB (41.9MB), run=620-620msec 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