== sanity test 398c: run fio to test AIO ================= 12:37:39 (1785083859) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.341424 s, 123 MB/s osc.lustre-OST0000-osc-ffff9eadc2f15800.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=151105: Sun Jul 26 12:38:14 2026 write: IOPS=96, BW=384KiB/s (393kB/s)(10.0MiB/26653msec); 0 zone resets slat (usec): min=34, max=18675, avg=342.34, stdev=936.16 clat (msec): min=31, max=449, avg=166.02, stdev=56.65 lat (msec): min=31, max=449, avg=166.37, stdev=56.68 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 82], 10.00th=[ 97], 20.00th=[ 122], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 188], 80.00th=[ 209], 90.00th=[ 236], 95.00th=[ 264], | 99.00th=[ 347], 99.50th=[ 388], 99.90th=[ 439], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 143, max= 626, per=25.15%, avg=383.21, stdev=99.29, samples=52 iops : min= 35, max= 156, avg=95.42, stdev=24.85, samples=52 lat (msec) : 50=0.08%, 100=10.62%, 250=81.88%, 500=7.42% cpu : usr=0.23%, sys=1.45%, ctx=2333, 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=151106: Sun Jul 26 12:38:14 2026 write: IOPS=95, BW=381KiB/s (390kB/s)(10.0MiB/26876msec); 0 zone resets slat (usec): min=36, max=19993, avg=395.92, stdev=1114.08 clat (msec): min=38, max=402, avg=166.65, stdev=56.12 lat (msec): min=45, max=402, avg=167.05, stdev=56.13 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 87], 10.00th=[ 101], 20.00th=[ 122], | 30.00th=[ 136], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 174], | 70.00th=[ 188], 80.00th=[ 209], 90.00th=[ 245], 95.00th=[ 262], | 99.00th=[ 368], 99.50th=[ 388], 99.90th=[ 397], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 151, max= 636, per=24.91%, avg=379.62, stdev=98.93, samples=53 iops : min= 37, max= 159, avg=94.53, stdev=24.76, samples=53 lat (msec) : 50=0.12%, 100=9.45%, 250=82.73%, 500=7.70% cpu : usr=0.24%, sys=1.69%, ctx=2775, 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=151107: Sun Jul 26 12:38:14 2026 write: IOPS=95, BW=381KiB/s (390kB/s)(10.0MiB/26863msec); 0 zone resets slat (usec): min=35, max=25674, avg=320.67, stdev=984.52 clat (msec): min=42, max=444, avg=166.48, stdev=56.67 lat (msec): min=43, max=444, avg=166.80, stdev=56.70 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 83], 10.00th=[ 97], 20.00th=[ 121], | 30.00th=[ 136], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 174], | 70.00th=[ 188], 80.00th=[ 211], 90.00th=[ 239], 95.00th=[ 264], | 99.00th=[ 342], 99.50th=[ 401], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 135, max= 637, per=24.89%, avg=379.40, stdev=104.25, samples=53 iops : min= 33, max= 159, avg=94.45, stdev=26.11, samples=53 lat (msec) : 50=0.82%, 100=10.27%, 250=81.48%, 500=7.42% cpu : usr=0.26%, sys=1.23%, ctx=2290, 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=151108: Sun Jul 26 12:38:14 2026 write: IOPS=95, BW=381KiB/s (390kB/s)(10.0MiB/26861msec); 0 zone resets slat (usec): min=37, max=22546, avg=331.18, stdev=1109.38 clat (msec): min=21, max=402, avg=166.51, stdev=54.92 lat (msec): min=21, max=402, avg=166.85, stdev=54.95 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 80], 10.00th=[ 99], 20.00th=[ 124], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 161], 60.00th=[ 176], | 70.00th=[ 190], 80.00th=[ 211], 90.00th=[ 236], 95.00th=[ 255], | 99.00th=[ 368], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 384], | 99.99th=[ 405] bw ( KiB/s): min= 134, max= 640, per=24.90%, avg=379.47, stdev=104.90, samples=53 iops : min= 33, max= 160, avg=94.49, stdev=26.28, samples=53 lat (msec) : 50=0.16%, 100=10.39%, 250=83.48%, 500=5.98% cpu : usr=0.14%, sys=1.40%, ctx=2179, 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=1524KiB/s (1561kB/s), 381KiB/s-384KiB/s (390kB/s-393kB/s), io=40.0MiB (41.9MB), run=26653-26876msec 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=151122: Sun Jul 26 12:39:03 2026 read: IOPS=33, BW=134KiB/s (138kB/s)(5048KiB/37586msec) slat (usec): min=79, max=77359, avg=16495.42, stdev=9665.44 clat (msec): min=20, max=417, avg=220.08, stdev=58.17 lat (msec): min=20, max=430, avg=236.58, stdev=60.74 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 138], 10.00th=[ 153], 20.00th=[ 171], | 30.00th=[ 186], 40.00th=[ 203], 50.00th=[ 215], 60.00th=[ 228], | 70.00th=[ 245], 80.00th=[ 268], 90.00th=[ 296], 95.00th=[ 334], | 99.00th=[ 372], 99.50th=[ 384], 99.90th=[ 409], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 63, max= 231, per=24.91%, avg=132.78, stdev=38.46, samples=74 iops : min= 15, max= 57, avg=32.77, stdev= 9.59, samples=74 write: IOPS=34, BW=138KiB/s (141kB/s)(5192KiB/37586msec); 0 zone resets slat (usec): min=54, max=24793, avg=413.18, stdev=1527.85 clat (msec): min=62, max=461, avg=231.18, stdev=58.58 lat (msec): min=63, max=461, avg=231.60, stdev=58.61 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 146], 10.00th=[ 161], 20.00th=[ 180], | 30.00th=[ 199], 40.00th=[ 213], 50.00th=[ 228], 60.00th=[ 243], | 70.00th=[ 257], 80.00th=[ 279], 90.00th=[ 309], 95.00th=[ 334], | 99.00th=[ 393], 99.50th=[ 414], 99.90th=[ 443], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 48, max= 240, per=24.76%, avg=137.43, stdev=34.24, samples=74 iops : min= 12, max= 60, avg=33.93, stdev= 8.56, samples=74 lat (msec) : 50=0.12%, 100=0.39%, 250=68.67%, 500=30.82% cpu : usr=0.28%, sys=2.00%, ctx=4684, 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=151123: Sun Jul 26 12:39:03 2026 read: IOPS=33, BW=132KiB/s (136kB/s)(4976KiB/37595msec) slat (usec): min=3391, max=82546, avg=16065.38, stdev=9279.79 clat (msec): min=47, max=499, avg=220.92, stdev=58.79 lat (msec): min=59, max=513, avg=237.00, stdev=60.98 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 140], 10.00th=[ 155], 20.00th=[ 171], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 213], 60.00th=[ 228], | 70.00th=[ 247], 80.00th=[ 268], 90.00th=[ 296], 95.00th=[ 330], | 99.00th=[ 384], 99.50th=[ 418], 99.90th=[ 498], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 30, max= 271, per=24.52%, avg=130.70, stdev=38.38, samples=74 iops : min= 7, max= 67, avg=32.24, stdev= 9.63, samples=74 write: IOPS=35, BW=140KiB/s (143kB/s)(5264KiB/37595msec); 0 zone resets slat (usec): min=56, max=14102, avg=350.04, stdev=902.13 clat (msec): min=46, max=494, avg=230.39, stdev=57.39 lat (msec): min=47, max=494, avg=230.74, stdev=57.42 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 150], 10.00th=[ 163], 20.00th=[ 182], | 30.00th=[ 197], 40.00th=[ 211], 50.00th=[ 224], 60.00th=[ 239], | 70.00th=[ 255], 80.00th=[ 275], 90.00th=[ 305], 95.00th=[ 334], | 99.00th=[ 397], 99.50th=[ 409], 99.90th=[ 451], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 56, max= 219, per=25.12%, avg=139.43, stdev=36.59, samples=74 iops : min= 14, max= 54, avg=34.43, stdev= 9.12, samples=74 lat (msec) : 50=0.08%, 100=0.27%, 250=69.26%, 500=30.39% cpu : usr=0.21%, sys=1.96%, ctx=4459, 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=151124: Sun Jul 26 12:39:03 2026 read: IOPS=33, BW=133KiB/s (136kB/s)(4984KiB/37472msec) slat (usec): min=56, max=79062, avg=16673.64, stdev=9878.35 clat (msec): min=20, max=451, avg=223.38, stdev=59.78 lat (msec): min=33, max=464, avg=240.07, stdev=62.60 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 138], 10.00th=[ 155], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 203], 50.00th=[ 218], 60.00th=[ 230], | 70.00th=[ 247], 80.00th=[ 275], 90.00th=[ 309], 95.00th=[ 334], | 99.00th=[ 376], 99.50th=[ 393], 99.90th=[ 439], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 64, max= 227, per=24.87%, avg=132.55, stdev=35.96, samples=74 iops : min= 16, max= 56, avg=32.72, stdev= 9.01, samples=74 write: IOPS=35, BW=140KiB/s (144kB/s)(5256KiB/37472msec); 0 zone resets slat (usec): min=41, max=15106, avg=345.24, stdev=919.51 clat (msec): min=85, max=437, avg=227.57, stdev=59.09 lat (msec): min=85, max=437, avg=227.92, stdev=59.06 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 144], 10.00th=[ 159], 20.00th=[ 176], | 30.00th=[ 190], 40.00th=[ 207], 50.00th=[ 224], 60.00th=[ 239], | 70.00th=[ 255], 80.00th=[ 279], 90.00th=[ 305], 95.00th=[ 334], | 99.00th=[ 397], 99.50th=[ 409], 99.90th=[ 414], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 55, max= 239, per=25.16%, avg=139.64, stdev=39.78, samples=74 iops : min= 13, max= 59, avg=34.50, stdev= 9.98, samples=74 lat (msec) : 50=0.04%, 100=0.51%, 250=68.59%, 500=30.86% cpu : usr=0.32%, sys=1.90%, ctx=4311, 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=151125: Sun Jul 26 12:39:03 2026 read: IOPS=33, BW=135KiB/s (138kB/s)(5060KiB/37538msec) slat (usec): min=3190, max=88500, avg=16303.84, stdev=9911.49 clat (msec): min=34, max=447, avg=220.88, stdev=57.82 lat (msec): min=48, max=457, avg=237.20, stdev=60.54 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 140], 10.00th=[ 153], 20.00th=[ 171], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 213], 60.00th=[ 226], | 70.00th=[ 245], 80.00th=[ 268], 90.00th=[ 300], 95.00th=[ 326], | 99.00th=[ 380], 99.50th=[ 401], 99.90th=[ 443], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 54, max= 206, per=25.12%, avg=133.88, stdev=37.79, samples=74 iops : min= 13, max= 51, avg=33.07, stdev= 9.51, samples=74 write: IOPS=34, BW=138KiB/s (141kB/s)(5180KiB/37538msec); 0 zone resets slat (usec): min=57, max=17083, avg=331.57, stdev=847.91 clat (msec): min=52, max=425, avg=228.81, stdev=59.10 lat (msec): min=52, max=425, avg=229.14, stdev=59.08 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 146], 10.00th=[ 161], 20.00th=[ 178], | 30.00th=[ 192], 40.00th=[ 209], 50.00th=[ 222], 60.00th=[ 236], | 70.00th=[ 253], 80.00th=[ 275], 90.00th=[ 309], 95.00th=[ 338], | 99.00th=[ 409], 99.50th=[ 414], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 54, max= 231, per=24.69%, avg=137.04, stdev=35.52, samples=74 iops : min= 13, max= 57, avg=33.82, stdev= 8.86, samples=74 lat (msec) : 50=0.04%, 100=0.12%, 250=70.86%, 500=28.98% cpu : usr=0.22%, sys=1.84%, ctx=4419, 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=534KiB/s (547kB/s), 132KiB/s-135KiB/s (136kB/s-138kB/s), io=19.6MiB (20.5MB), run=37472-37595msec WRITE: bw=556KiB/s (569kB/s), 138KiB/s-140KiB/s (141kB/s-144kB/s), io=20.4MiB (21.4MB), run=37472-37595msec 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=151135: Sun Jul 26 12:39:14 2026 read: IOPS=1, BW=71.6MiB/s (75.0MB/s)(40.0MiB/559msec) slat (nsec): min=58497k, max=58497k, avg=58496959.00, stdev= 0.00 clat (nsec): min=463989k, max=463989k, avg=463989003.00, stdev= 0.00 lat (nsec): min=522492k, max=522492k, avg=522491617.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 464], 10.00th=[ 464], 20.00th=[ 464], | 30.00th=[ 464], 40.00th=[ 464], 50.00th=[ 464], 60.00th=[ 464], | 70.00th=[ 464], 80.00th=[ 464], 90.00th=[ 464], 95.00th=[ 464], | 99.00th=[ 464], 99.50th=[ 464], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] lat (msec) : 500=100.00% cpu : usr=0.18%, sys=2.15%, ctx=9, 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=71.6MiB/s (75.0MB/s), 71.6MiB/s-71.6MiB/s (75.0MB/s-75.0MB/s), io=40.0MiB (41.9MB), run=559-559msec 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