== sanity test 398c: run fio to test AIO ================= 02:27:23 (1788935243) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.47396 s, 88.5 MB/s osc.lustre-OST0000-osc-ffff946e51b40800.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=178788: Wed Sep 9 02:28:05 2026 write: IOPS=96, BW=388KiB/s (397kB/s)(10.0MiB/26417msec); 0 zone resets slat (usec): min=23, max=18726, avg=214.77, stdev=804.51 clat (msec): min=22, max=324, avg=164.02, stdev=40.39 lat (msec): min=23, max=324, avg=164.24, stdev=40.39 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 112], 10.00th=[ 124], 20.00th=[ 134], | 30.00th=[ 142], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 178], 80.00th=[ 192], 90.00th=[ 220], 95.00th=[ 243], | 99.00th=[ 296], 99.50th=[ 317], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 247, max= 512, per=24.93%, avg=386.40, stdev=71.72, samples=52 iops : min= 61, max= 128, avg=96.13, stdev=17.95, samples=52 lat (msec) : 50=0.12%, 100=2.38%, 250=93.83%, 500=3.67% cpu : usr=0.17%, sys=1.04%, ctx=2375, 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=178789: Wed Sep 9 02:28:05 2026 write: IOPS=97, BW=390KiB/s (400kB/s)(10.0MiB/26234msec); 0 zone resets slat (usec): min=22, max=18780, avg=167.48, stdev=609.62 clat (msec): min=21, max=344, avg=163.63, stdev=41.19 lat (msec): min=22, max=344, avg=163.80, stdev=41.20 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 112], 10.00th=[ 126], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 150], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 174], 80.00th=[ 186], 90.00th=[ 213], 95.00th=[ 247], | 99.00th=[ 305], 99.50th=[ 321], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 347] bw ( KiB/s): min= 247, max= 510, per=25.15%, avg=389.84, stdev=78.09, samples=51 iops : min= 61, max= 127, avg=97.02, stdev=19.55, samples=51 lat (msec) : 50=0.12%, 100=1.64%, 250=93.67%, 500=4.57% cpu : usr=0.24%, sys=0.90%, ctx=1634, 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=178790: Wed Sep 9 02:28:05 2026 write: IOPS=97, BW=389KiB/s (398kB/s)(10.0MiB/26355msec); 0 zone resets slat (usec): min=22, max=13961, avg=176.31, stdev=607.04 clat (msec): min=42, max=311, avg=163.44, stdev=39.67 lat (msec): min=43, max=312, avg=163.61, stdev=39.67 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 116], 10.00th=[ 126], 20.00th=[ 136], | 30.00th=[ 142], 40.00th=[ 148], 50.00th=[ 153], 60.00th=[ 161], | 70.00th=[ 174], 80.00th=[ 188], 90.00th=[ 218], 95.00th=[ 239], | 99.00th=[ 296], 99.50th=[ 313], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 247, max= 512, per=24.95%, avg=386.65, stdev=76.97, samples=52 iops : min= 61, max= 128, avg=96.23, stdev=19.28, samples=52 lat (msec) : 50=0.04%, 100=1.64%, 250=94.18%, 500=4.14% cpu : usr=0.17%, sys=0.77%, ctx=1873, 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=178791: Wed Sep 9 02:28:05 2026 write: IOPS=97, BW=388KiB/s (397kB/s)(10.0MiB/26382msec); 0 zone resets slat (usec): min=23, max=16435, avg=226.15, stdev=870.83 clat (msec): min=21, max=344, avg=163.92, stdev=40.46 lat (msec): min=22, max=344, avg=164.15, stdev=40.50 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 116], 10.00th=[ 126], 20.00th=[ 136], | 30.00th=[ 142], 40.00th=[ 148], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 174], 80.00th=[ 188], 90.00th=[ 218], 95.00th=[ 245], | 99.00th=[ 313], 99.50th=[ 326], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 246, max= 512, per=24.94%, avg=386.58, stdev=67.40, samples=52 iops : min= 61, max= 128, avg=96.21, stdev=16.91, samples=52 lat (msec) : 50=0.04%, 100=2.30%, 250=93.71%, 500=3.95% cpu : usr=0.23%, sys=1.13%, ctx=2549, 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=1551KiB/s (1588kB/s), 388KiB/s-390KiB/s (397kB/s-400kB/s), io=40.0MiB (41.9MB), run=26234-26417msec 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=178806: Wed Sep 9 02:28:51 2026 read: IOPS=36, BW=146KiB/s (150kB/s)(5048KiB/34546msec) slat (usec): min=3172, max=64899, avg=15389.11, stdev=8659.15 clat (msec): min=35, max=410, avg=203.15, stdev=50.84 lat (msec): min=55, max=427, avg=218.54, stdev=53.02 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 122], 10.00th=[ 140], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 201], 60.00th=[ 213], | 70.00th=[ 228], 80.00th=[ 245], 90.00th=[ 271], 95.00th=[ 292], | 99.00th=[ 326], 99.50th=[ 342], 99.90th=[ 376], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 63, max= 255, per=24.79%, avg=143.81, stdev=35.14, samples=68 iops : min= 15, max= 63, avg=35.47, stdev= 8.81, samples=68 write: IOPS=37, BW=150KiB/s (154kB/s)(5192KiB/34546msec); 0 zone resets slat (usec): min=31, max=14232, avg=280.70, stdev=966.69 clat (msec): min=71, max=387, avg=210.32, stdev=48.31 lat (msec): min=71, max=387, avg=210.60, stdev=48.34 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 133], 10.00th=[ 153], 20.00th=[ 169], | 30.00th=[ 188], 40.00th=[ 199], 50.00th=[ 209], 60.00th=[ 220], | 70.00th=[ 232], 80.00th=[ 249], 90.00th=[ 271], 95.00th=[ 292], | 99.00th=[ 338], 99.50th=[ 359], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 46, max= 223, per=24.57%, avg=148.43, stdev=36.74, samples=68 iops : min= 11, max= 55, avg=36.62, stdev= 9.22, samples=68 lat (msec) : 50=0.04%, 100=1.52%, 250=80.66%, 500=17.77% cpu : usr=0.32%, sys=1.85%, ctx=4157, 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=178807: Wed Sep 9 02:28:51 2026 read: IOPS=36, BW=144KiB/s (148kB/s)(4976KiB/34525msec) slat (usec): min=2739, max=65356, avg=15225.67, stdev=8795.83 clat (msec): min=18, max=383, avg=202.09, stdev=49.97 lat (msec): min=31, max=397, avg=217.33, stdev=52.06 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 125], 10.00th=[ 140], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 201], 60.00th=[ 213], | 70.00th=[ 230], 80.00th=[ 245], 90.00th=[ 264], 95.00th=[ 288], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 380], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 38, max= 215, per=24.50%, avg=142.10, stdev=35.65, samples=68 iops : min= 9, max= 53, avg=35.04, stdev= 8.89, samples=68 write: IOPS=38, BW=152KiB/s (156kB/s)(5264KiB/34525msec); 0 zone resets slat (usec): min=25, max=11683, avg=262.81, stdev=842.06 clat (msec): min=61, max=362, avg=211.53, stdev=49.80 lat (msec): min=61, max=362, avg=211.80, stdev=49.78 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 128], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 186], 40.00th=[ 201], 50.00th=[ 213], 60.00th=[ 224], | 70.00th=[ 234], 80.00th=[ 249], 90.00th=[ 279], 95.00th=[ 296], | 99.00th=[ 338], 99.50th=[ 351], 99.90th=[ 359], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 78, max= 252, per=25.00%, avg=150.97, stdev=35.45, samples=68 iops : min= 19, max= 63, avg=37.25, stdev= 8.96, samples=68 lat (msec) : 20=0.04%, 100=1.48%, 250=80.20%, 500=18.28% cpu : usr=0.28%, sys=1.93%, ctx=4151, 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=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=178808: Wed Sep 9 02:28:51 2026 read: IOPS=36, BW=144KiB/s (148kB/s)(4984KiB/34521msec) slat (usec): min=2832, max=61126, avg=15314.24, stdev=8682.05 clat (msec): min=61, max=360, avg=200.93, stdev=48.54 lat (msec): min=71, max=374, avg=216.25, stdev=51.08 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 127], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 174], 40.00th=[ 188], 50.00th=[ 201], 60.00th=[ 213], | 70.00th=[ 226], 80.00th=[ 243], 90.00th=[ 264], 95.00th=[ 284], | 99.00th=[ 321], 99.50th=[ 326], 99.90th=[ 355], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 45, max= 231, per=24.68%, avg=143.15, stdev=37.85, samples=68 iops : min= 11, max= 57, avg=35.28, stdev= 9.50, samples=68 write: IOPS=38, BW=152KiB/s (156kB/s)(5256KiB/34521msec); 0 zone resets slat (usec): min=29, max=22539, avg=293.22, stdev=1050.41 clat (msec): min=61, max=374, avg=211.76, stdev=49.44 lat (msec): min=61, max=374, avg=212.06, stdev=49.43 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 132], 10.00th=[ 150], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 224], | 70.00th=[ 236], 80.00th=[ 253], 90.00th=[ 279], 95.00th=[ 296], | 99.00th=[ 326], 99.50th=[ 342], 99.90th=[ 359], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 60, max= 239, per=24.85%, avg=150.12, stdev=35.12, samples=68 iops : min= 15, max= 59, avg=37.07, stdev= 8.75, samples=68 lat (msec) : 100=1.72%, 250=79.88%, 500=18.40% cpu : usr=0.27%, sys=1.77%, ctx=4412, 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=178809: Wed Sep 9 02:28:51 2026 read: IOPS=36, BW=147KiB/s (150kB/s)(5060KiB/34507msec) slat (usec): min=54, max=85648, avg=15451.20, stdev=8854.41 clat (msec): min=33, max=362, avg=202.00, stdev=50.66 lat (msec): min=34, max=376, avg=217.46, stdev=52.61 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 123], 10.00th=[ 142], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 201], 60.00th=[ 213], | 70.00th=[ 228], 80.00th=[ 245], 90.00th=[ 266], 95.00th=[ 288], | 99.00th=[ 330], 99.50th=[ 347], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 55, max= 271, per=25.06%, avg=145.34, stdev=40.90, samples=68 iops : min= 13, max= 67, avg=35.85, stdev=10.25, samples=68 write: IOPS=37, BW=150KiB/s (154kB/s)(5180KiB/34507msec); 0 zone resets slat (usec): min=28, max=23908, avg=328.49, stdev=1214.30 clat (msec): min=32, max=363, avg=212.74, stdev=51.52 lat (msec): min=36, max=364, avg=213.07, stdev=51.51 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 126], 10.00th=[ 150], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 211], 60.00th=[ 226], | 70.00th=[ 239], 80.00th=[ 255], 90.00th=[ 279], 95.00th=[ 305], | 99.00th=[ 338], 99.50th=[ 347], 99.90th=[ 355], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 87, max= 238, per=24.55%, avg=148.31, stdev=32.09, samples=68 iops : min= 21, max= 59, avg=36.60, stdev= 8.04, samples=68 lat (msec) : 50=0.27%, 100=1.13%, 250=78.98%, 500=19.61% cpu : usr=0.24%, sys=1.91%, ctx=4318, 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=581KiB/s (595kB/s), 144KiB/s-147KiB/s (148kB/s-150kB/s), io=19.6MiB (20.5MB), run=34507-34546msec WRITE: bw=605KiB/s (619kB/s), 150KiB/s-152KiB/s (154kB/s-156kB/s), io=20.4MiB (21.4MB), run=34507-34546msec 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=178819: Wed Sep 9 02:29:02 2026 read: IOPS=1, BW=55.9MiB/s (58.6MB/s)(40.0MiB/716msec) slat (nsec): min=46329k, max=46329k, avg=46329327.00, stdev= 0.00 clat (nsec): min=651782k, max=651782k, avg=651782472.00, stdev= 0.00 lat (nsec): min=698117k, max=698117k, avg=698117447.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] lat (msec) : 750=100.00% cpu : usr=0.14%, sys=2.38%, ctx=8, 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=55.9MiB/s (58.6MB/s), 55.9MiB/s-55.9MiB/s (58.6MB/s-58.6MB/s), io=40.0MiB (41.9MB), run=716-716msec 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