== sanity test 398c: run fio to test AIO ================= 10:24:34 (1782483874) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.163653 s, 256 MB/s osc.lustre-OST0000-osc-ffff9b21f2fd2800.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=147074: Fri Jun 26 10:25:37 2026 write: IOPS=42, BW=171KiB/s (176kB/s)(10.0MiB/59730msec); 0 zone resets slat (usec): min=45, max=5058, avg=226.69, stdev=209.34 clat (msec): min=16, max=613, avg=372.82, stdev=77.13 lat (msec): min=16, max=613, avg=373.05, stdev=77.14 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 253], 10.00th=[ 288], 20.00th=[ 326], | 30.00th=[ 342], 40.00th=[ 359], 50.00th=[ 372], 60.00th=[ 393], | 70.00th=[ 409], 80.00th=[ 430], 90.00th=[ 460], 95.00th=[ 493], | 99.00th=[ 550], 99.50th=[ 567], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 617] bw ( KiB/s): min= 104, max= 422, per=24.96%, avg=170.98, stdev=37.93, samples=118 iops : min= 26, max= 105, avg=42.63, stdev= 9.50, samples=118 lat (msec) : 20=0.04%, 100=0.35%, 250=4.49%, 500=90.62%, 750=4.49% cpu : usr=0.09%, sys=0.74%, ctx=3000, 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 rand-write: (groupid=0, jobs=1): err= 0: pid=147075: Fri Jun 26 10:25:37 2026 write: IOPS=42, BW=172KiB/s (176kB/s)(10.0MiB/59704msec); 0 zone resets slat (usec): min=45, max=4808, avg=221.66, stdev=186.29 clat (msec): min=112, max=635, avg=372.62, stdev=75.94 lat (msec): min=112, max=635, avg=372.84, stdev=75.95 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 251], 10.00th=[ 288], 20.00th=[ 321], | 30.00th=[ 342], 40.00th=[ 359], 50.00th=[ 372], 60.00th=[ 388], | 70.00th=[ 409], 80.00th=[ 430], 90.00th=[ 464], 95.00th=[ 493], | 99.00th=[ 550], 99.50th=[ 567], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 634] bw ( KiB/s): min= 112, max= 377, per=24.96%, avg=170.96, stdev=35.66, samples=118 iops : min= 28, max= 94, avg=42.62, stdev= 8.95, samples=118 lat (msec) : 250=4.96%, 500=90.59%, 750=4.45% cpu : usr=0.08%, sys=0.74%, ctx=2928, 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 rand-write: (groupid=0, jobs=1): err= 0: pid=147076: Fri Jun 26 10:25:37 2026 write: IOPS=42, BW=172KiB/s (176kB/s)(10.0MiB/59624msec); 0 zone resets slat (usec): min=35, max=4564, avg=209.42, stdev=195.44 clat (msec): min=55, max=664, avg=372.26, stdev=78.51 lat (msec): min=55, max=664, avg=372.47, stdev=78.53 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 245], 10.00th=[ 288], 20.00th=[ 321], | 30.00th=[ 342], 40.00th=[ 355], 50.00th=[ 372], 60.00th=[ 393], | 70.00th=[ 409], 80.00th=[ 435], 90.00th=[ 464], 95.00th=[ 493], | 99.00th=[ 558], 99.50th=[ 575], 99.90th=[ 600], 99.95th=[ 625], | 99.99th=[ 667] bw ( KiB/s): min= 80, max= 409, per=25.00%, avg=171.28, stdev=45.03, samples=118 iops : min= 20, max= 102, avg=42.70, stdev=11.27, samples=118 lat (msec) : 100=0.62%, 250=4.61%, 500=90.31%, 750=4.45% cpu : usr=0.07%, sys=0.68%, ctx=2856, 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 rand-write: (groupid=0, jobs=1): err= 0: pid=147077: Fri Jun 26 10:25:37 2026 write: IOPS=42, BW=171KiB/s (176kB/s)(10.0MiB/59729msec); 0 zone resets slat (usec): min=39, max=3705, avg=217.96, stdev=182.46 clat (msec): min=112, max=592, avg=372.77, stdev=75.22 lat (msec): min=112, max=592, avg=372.99, stdev=75.22 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 253], 10.00th=[ 288], 20.00th=[ 321], | 30.00th=[ 342], 40.00th=[ 359], 50.00th=[ 372], 60.00th=[ 393], | 70.00th=[ 409], 80.00th=[ 435], 90.00th=[ 460], 95.00th=[ 493], | 99.00th=[ 550], 99.50th=[ 558], 99.90th=[ 584], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 112, max= 358, per=24.95%, avg=170.92, stdev=37.10, samples=118 iops : min= 28, max= 89, avg=42.61, stdev= 9.29, samples=118 lat (msec) : 250=4.84%, 500=90.94%, 750=4.22% cpu : usr=0.06%, sys=0.72%, ctx=2919, 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=686KiB/s (702kB/s), 171KiB/s-172KiB/s (176kB/s-176kB/s), io=40.0MiB (41.9MB), run=59624-59730msec 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=147095: Fri Jun 26 10:26:16 2026 read: IOPS=35, BW=143KiB/s (147kB/s)(5048KiB/35213msec) slat (usec): min=1273, max=23529, avg=3987.15, stdev=2167.73 clat (msec): min=7, max=301, avg=136.29, stdev=31.61 lat (msec): min=10, max=306, avg=140.28, stdev=31.74 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 92], 10.00th=[ 100], 20.00th=[ 110], | 30.00th=[ 120], 40.00th=[ 129], 50.00th=[ 136], 60.00th=[ 142], | 70.00th=[ 150], 80.00th=[ 163], 90.00th=[ 176], 95.00th=[ 190], | 99.00th=[ 218], 99.50th=[ 230], 99.90th=[ 259], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 56, max= 248, per=25.09%, avg=142.76, stdev=38.37, samples=70 iops : min= 14, max= 62, avg=35.53, stdev= 9.64, samples=70 write: IOPS=36, BW=147KiB/s (151kB/s)(5192KiB/35213msec); 0 zone resets slat (usec): min=43, max=2572, avg=204.11, stdev=146.41 clat (msec): min=123, max=467, avg=296.63, stdev=55.65 lat (msec): min=123, max=467, avg=296.83, stdev=55.65 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 207], 10.00th=[ 224], 20.00th=[ 251], | 30.00th=[ 268], 40.00th=[ 284], 50.00th=[ 296], 60.00th=[ 309], | 70.00th=[ 326], 80.00th=[ 342], 90.00th=[ 372], 95.00th=[ 393], | 99.00th=[ 422], 99.50th=[ 430], 99.90th=[ 460], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 87, max= 224, per=24.80%, avg=146.81, stdev=30.03, samples=70 iops : min= 21, max= 56, avg=36.54, stdev= 7.54, samples=70 lat (msec) : 10=0.08%, 20=0.12%, 50=0.12%, 100=4.73%, 250=54.30% lat (msec) : 500=40.66% cpu : usr=0.16%, sys=1.40%, ctx=4890, 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=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=147096: Fri Jun 26 10:26:16 2026 read: IOPS=35, BW=141KiB/s (145kB/s)(4976KiB/35255msec) slat (usec): min=1415, max=19522, avg=4020.17, stdev=2095.40 clat (msec): min=2, max=229, avg=136.95, stdev=31.93 lat (msec): min=5, max=233, avg=140.97, stdev=32.07 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 91], 10.00th=[ 102], 20.00th=[ 112], | 30.00th=[ 121], 40.00th=[ 129], 50.00th=[ 136], 60.00th=[ 144], | 70.00th=[ 150], 80.00th=[ 163], 90.00th=[ 178], 95.00th=[ 194], | 99.00th=[ 213], 99.50th=[ 215], 99.90th=[ 224], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 55, max= 247, per=24.65%, avg=140.24, stdev=43.61, samples=70 iops : min= 13, max= 61, avg=34.90, stdev=10.86, samples=70 write: IOPS=37, BW=149KiB/s (153kB/s)(5264KiB/35255msec); 0 zone resets slat (usec): min=38, max=4489, avg=211.03, stdev=233.49 clat (msec): min=22, max=452, avg=294.56, stdev=61.23 lat (msec): min=23, max=452, avg=294.78, stdev=61.23 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 192], 10.00th=[ 213], 20.00th=[ 245], | 30.00th=[ 266], 40.00th=[ 284], 50.00th=[ 296], 60.00th=[ 313], | 70.00th=[ 326], 80.00th=[ 347], 90.00th=[ 376], 95.00th=[ 393], | 99.00th=[ 430], 99.50th=[ 439], 99.90th=[ 447], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 87, max= 216, per=25.13%, avg=148.76, stdev=26.05, samples=70 iops : min= 21, max= 54, avg=37.03, stdev= 6.57, samples=70 lat (msec) : 4=0.08%, 10=0.08%, 20=0.04%, 50=0.35%, 100=3.98% lat (msec) : 250=55.51%, 500=39.96% cpu : usr=0.15%, sys=1.41%, ctx=4830, 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=147097: Fri Jun 26 10:26:16 2026 read: IOPS=35, BW=141KiB/s (145kB/s)(4984KiB/35231msec) slat (usec): min=1346, max=23482, avg=4032.23, stdev=2115.20 clat (msec): min=4, max=255, avg=137.70, stdev=30.98 lat (msec): min=6, max=263, avg=141.74, stdev=31.15 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 94], 10.00th=[ 102], 20.00th=[ 113], | 30.00th=[ 122], 40.00th=[ 130], 50.00th=[ 138], 60.00th=[ 144], | 70.00th=[ 153], 80.00th=[ 161], 90.00th=[ 178], 95.00th=[ 192], | 99.00th=[ 215], 99.50th=[ 220], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 47, max= 256, per=24.83%, avg=141.27, stdev=38.51, samples=70 iops : min= 11, max= 64, avg=35.16, stdev= 9.73, samples=70 write: IOPS=37, BW=149KiB/s (153kB/s)(5256KiB/35231msec); 0 zone resets slat (usec): min=56, max=3918, avg=209.33, stdev=193.81 clat (msec): min=77, max=452, avg=293.74, stdev=58.11 lat (msec): min=77, max=452, avg=293.95, stdev=58.11 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 197], 10.00th=[ 218], 20.00th=[ 245], | 30.00th=[ 266], 40.00th=[ 279], 50.00th=[ 296], 60.00th=[ 309], | 70.00th=[ 326], 80.00th=[ 342], 90.00th=[ 372], 95.00th=[ 388], | 99.00th=[ 418], 99.50th=[ 426], 99.90th=[ 443], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 72, max= 224, per=25.03%, avg=148.20, stdev=27.44, samples=70 iops : min= 18, max= 56, avg=36.89, stdev= 6.82, samples=70 lat (msec) : 10=0.08%, 20=0.04%, 50=0.23%, 100=4.22%, 250=55.70% lat (msec) : 500=39.73% cpu : usr=0.13%, sys=1.46%, ctx=4926, 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=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=147098: Fri Jun 26 10:26:16 2026 read: IOPS=36, BW=144KiB/s (148kB/s)(5060KiB/35120msec) slat (usec): min=52, max=25995, avg=4064.84, stdev=2395.86 clat (msec): min=3, max=345, avg=135.78, stdev=33.94 lat (msec): min=6, max=348, avg=139.85, stdev=34.09 clat percentiles (msec): | 1.00th=[ 28], 5.00th=[ 92], 10.00th=[ 102], 20.00th=[ 112], | 30.00th=[ 120], 40.00th=[ 127], 50.00th=[ 136], 60.00th=[ 142], | 70.00th=[ 150], 80.00th=[ 161], 90.00th=[ 176], 95.00th=[ 190], | 99.00th=[ 224], 99.50th=[ 232], 99.90th=[ 342], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 47, max= 248, per=25.47%, avg=144.90, stdev=39.37, samples=69 iops : min= 11, max= 62, avg=36.07, stdev= 9.85, samples=69 write: IOPS=36, BW=147KiB/s (151kB/s)(5180KiB/35120msec); 0 zone resets slat (usec): min=57, max=4758, avg=211.88, stdev=209.78 clat (msec): min=35, max=570, avg=296.68, stdev=64.32 lat (msec): min=35, max=571, avg=296.89, stdev=64.32 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 192], 10.00th=[ 215], 20.00th=[ 247], | 30.00th=[ 268], 40.00th=[ 284], 50.00th=[ 296], 60.00th=[ 313], | 70.00th=[ 330], 80.00th=[ 347], 90.00th=[ 376], 95.00th=[ 397], | 99.00th=[ 439], 99.50th=[ 514], 99.90th=[ 567], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 95, max= 224, per=24.89%, avg=147.38, stdev=25.58, samples=69 iops : min= 23, max= 56, avg=36.68, stdev= 6.44, samples=69 lat (msec) : 4=0.08%, 10=0.16%, 20=0.04%, 50=0.66%, 100=4.38% lat (msec) : 250=55.23%, 500=39.18%, 750=0.27% cpu : usr=0.17%, sys=1.39%, ctx=4940, majf=0, minf=16 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=569KiB/s (583kB/s), 141KiB/s-144KiB/s (145kB/s-148kB/s), io=19.6MiB (20.5MB), run=35120-35255msec WRITE: bw=593KiB/s (607kB/s), 147KiB/s-149KiB/s (151kB/s-153kB/s), io=20.4MiB (21.4MB), run=35120-35255msec 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=147117: Fri Jun 26 10:26:20 2026 read: IOPS=6, BW=276MiB/s (289MB/s)(40.0MiB/145msec) slat (nsec): min=12684k, max=12684k, avg=12684248.00, stdev= 0.00 clat (nsec): min=123022k, max=123022k, avg=123021845.00, stdev= 0.00 lat (nsec): min=135711k, max=135711k, avg=135711003.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 124], 10.00th=[ 124], 20.00th=[ 124], | 30.00th=[ 124], 40.00th=[ 124], 50.00th=[ 124], 60.00th=[ 124], | 70.00th=[ 124], 80.00th=[ 124], 90.00th=[ 124], 95.00th=[ 124], | 99.00th=[ 124], 99.50th=[ 124], 99.90th=[ 124], 99.95th=[ 124], | 99.99th=[ 124] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=6.94%, ctx=43, 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=276MiB/s (289MB/s), 276MiB/s-276MiB/s (289MB/s-289MB/s), io=40.0MiB (41.9MB), run=145-145msec 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