== sanity test 398c: run fio to test AIO ================= 17:07:59 (1786568879) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.360036 s, 116 MB/s osc.lustre-OST0000-osc-ffff8d75ae07d000.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=145150: Wed Aug 12 17:09:59 2026 write: IOPS=22, BW=91.7KiB/s (93.9kB/s)(10.0MiB/111664msec); 0 zone resets slat (usec): min=37, max=17802, avg=284.94, stdev=776.51 clat (msec): min=151, max=1168, avg=697.11, stdev=161.78 lat (msec): min=152, max=1168, avg=697.40, stdev=161.79 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 439], 10.00th=[ 514], 20.00th=[ 575], | 30.00th=[ 617], 40.00th=[ 667], 50.00th=[ 709], 60.00th=[ 735], | 70.00th=[ 776], 80.00th=[ 818], 90.00th=[ 894], 95.00th=[ 961], | 99.00th=[ 1062], 99.50th=[ 1133], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 23, max= 256, per=24.86%, avg=90.97, stdev=27.85, samples=222 iops : min= 5, max= 64, avg=22.36, stdev= 7.01, samples=222 lat (msec) : 250=1.48%, 500=6.21%, 750=55.20%, 1000=34.14%, 2000=2.97% cpu : usr=0.04%, sys=0.40%, ctx=2691, majf=0, minf=8 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=145151: Wed Aug 12 17:09:59 2026 write: IOPS=22, BW=91.8KiB/s (94.0kB/s)(10.0MiB/111549msec); 0 zone resets slat (usec): min=35, max=15006, avg=272.23, stdev=718.71 clat (msec): min=85, max=1221, avg=696.58, stdev=164.59 lat (msec): min=86, max=1221, avg=696.85, stdev=164.57 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 443], 10.00th=[ 510], 20.00th=[ 575], | 30.00th=[ 625], 40.00th=[ 667], 50.00th=[ 701], 60.00th=[ 735], | 70.00th=[ 776], 80.00th=[ 818], 90.00th=[ 885], 95.00th=[ 953], | 99.00th=[ 1099], 99.50th=[ 1116], 99.90th=[ 1150], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 7, max= 248, per=24.85%, avg=90.95, stdev=30.93, samples=222 iops : min= 1, max= 62, avg=22.36, stdev= 7.80, samples=222 lat (msec) : 100=0.04%, 250=1.72%, 500=7.42%, 750=53.59%, 1000=33.75% lat (msec) : 2000=3.48% cpu : usr=0.06%, sys=0.36%, ctx=2631, 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=145152: Wed Aug 12 17:09:59 2026 write: IOPS=22, BW=91.7KiB/s (93.9kB/s)(10.0MiB/111661msec); 0 zone resets slat (usec): min=39, max=18343, avg=296.18, stdev=926.06 clat (msec): min=150, max=1187, avg=697.01, stdev=160.21 lat (msec): min=150, max=1187, avg=697.31, stdev=160.19 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 447], 10.00th=[ 514], 20.00th=[ 584], | 30.00th=[ 617], 40.00th=[ 667], 50.00th=[ 701], 60.00th=[ 735], | 70.00th=[ 776], 80.00th=[ 818], 90.00th=[ 885], 95.00th=[ 953], | 99.00th=[ 1070], 99.50th=[ 1116], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 23, max= 256, per=24.86%, avg=90.98, stdev=29.97, samples=222 iops : min= 5, max= 64, avg=22.36, stdev= 7.53, samples=222 lat (msec) : 250=1.25%, 500=6.41%, 750=55.62%, 1000=33.59%, 2000=3.12% cpu : usr=0.04%, sys=0.39%, ctx=3011, majf=0, minf=8 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=145153: Wed Aug 12 17:09:59 2026 write: IOPS=22, BW=91.8KiB/s (94.0kB/s)(10.0MiB/111550msec); 0 zone resets slat (usec): min=36, max=13065, avg=258.35, stdev=600.81 clat (msec): min=38, max=1169, avg=696.32, stdev=166.49 lat (msec): min=39, max=1169, avg=696.58, stdev=166.49 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 430], 10.00th=[ 510], 20.00th=[ 575], | 30.00th=[ 617], 40.00th=[ 667], 50.00th=[ 701], 60.00th=[ 743], | 70.00th=[ 776], 80.00th=[ 818], 90.00th=[ 894], 95.00th=[ 961], | 99.00th=[ 1083], 99.50th=[ 1133], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 256, per=24.85%, avg=90.97, stdev=31.63, samples=222 iops : min= 1, max= 64, avg=22.36, stdev= 7.97, samples=222 lat (msec) : 50=0.04%, 250=1.60%, 500=6.95%, 750=54.14%, 1000=33.63% lat (msec) : 2000=3.63% cpu : usr=0.07%, sys=0.37%, ctx=3018, 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=367KiB/s (376kB/s), 91.7KiB/s-91.8KiB/s (93.9kB/s-94.0kB/s), io=40.0MiB (41.9MB), run=111549-111664msec 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=145178: Wed Aug 12 17:11:20 2026 read: IOPS=16, BW=66.9KiB/s (68.5kB/s)(5048KiB/75497msec) slat (usec): min=36, max=43514, avg=9713.06, stdev=5044.26 clat (msec): min=12, max=803, avg=306.58, stdev=88.68 lat (msec): min=23, max=816, avg=316.30, stdev=89.70 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 192], 10.00th=[ 215], 20.00th=[ 243], | 30.00th=[ 262], 40.00th=[ 279], 50.00th=[ 296], 60.00th=[ 317], | 70.00th=[ 342], 80.00th=[ 368], 90.00th=[ 405], 95.00th=[ 456], | 99.00th=[ 558], 99.50th=[ 617], 99.90th=[ 793], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 23, max= 183, per=25.27%, avg=66.71, stdev=26.56, samples=149 iops : min= 5, max= 45, avg=16.22, stdev= 6.62, samples=149 write: IOPS=17, BW=68.8KiB/s (70.4kB/s)(5192KiB/75497msec); 0 zone resets slat (usec): min=38, max=10477, avg=289.42, stdev=627.33 clat (msec): min=73, max=1212, avg=621.91, stdev=163.33 lat (msec): min=73, max=1212, avg=622.20, stdev=163.35 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 368], 10.00th=[ 426], 20.00th=[ 489], | 30.00th=[ 535], 40.00th=[ 575], 50.00th=[ 617], 60.00th=[ 651], | 70.00th=[ 701], 80.00th=[ 751], 90.00th=[ 835], 95.00th=[ 902], | 99.00th=[ 1028], 99.50th=[ 1133], 99.90th=[ 1200], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 8, max= 122, per=24.69%, avg=67.90, stdev=22.31, samples=150 iops : min= 2, max= 30, avg=16.53, stdev= 5.58, samples=150 lat (msec) : 20=0.04%, 50=0.59%, 100=0.39%, 250=11.41%, 500=46.45% lat (msec) : 750=30.78%, 1000=9.69%, 2000=0.66% cpu : usr=0.09%, sys=0.88%, ctx=5165, 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=145179: Wed Aug 12 17:11:20 2026 read: IOPS=16, BW=65.6KiB/s (67.2kB/s)(4976KiB/75862msec) slat (usec): min=2185, max=35430, avg=9977.51, stdev=5042.52 clat (msec): min=12, max=620, avg=307.62, stdev=85.29 lat (msec): min=21, max=639, avg=317.60, stdev=86.01 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 194], 10.00th=[ 215], 20.00th=[ 239], | 30.00th=[ 266], 40.00th=[ 284], 50.00th=[ 296], 60.00th=[ 321], | 70.00th=[ 342], 80.00th=[ 363], 90.00th=[ 414], 95.00th=[ 464], | 99.00th=[ 558], 99.50th=[ 600], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 15, max= 159, per=24.55%, avg=64.81, stdev=25.43, samples=151 iops : min= 3, max= 39, avg=15.75, stdev= 6.39, samples=151 write: IOPS=17, BW=69.4KiB/s (71.1kB/s)(5264KiB/75862msec); 0 zone resets slat (usec): min=41, max=8066, avg=279.06, stdev=542.23 clat (msec): min=120, max=1197, avg=620.36, stdev=154.52 lat (msec): min=120, max=1198, avg=620.64, stdev=154.54 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 376], 10.00th=[ 430], 20.00th=[ 489], | 30.00th=[ 542], 40.00th=[ 584], 50.00th=[ 617], 60.00th=[ 651], | 70.00th=[ 693], 80.00th=[ 743], 90.00th=[ 818], 95.00th=[ 885], | 99.00th=[ 1003], 99.50th=[ 1062], 99.90th=[ 1167], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 135, per=24.96%, avg=68.64, stdev=25.06, samples=151 iops : min= 1, max= 33, avg=16.70, stdev= 6.26, samples=151 lat (msec) : 20=0.12%, 50=0.20%, 100=0.16%, 250=11.84%, 500=46.37% lat (msec) : 750=31.29%, 1000=9.45%, 2000=0.59% cpu : usr=0.09%, sys=0.79%, ctx=5185, 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=145180: Wed Aug 12 17:11:20 2026 read: IOPS=16, BW=65.8KiB/s (67.3kB/s)(4984KiB/75798msec) slat (usec): min=2195, max=43735, avg=10199.98, stdev=5421.35 clat (msec): min=14, max=616, avg=302.54, stdev=81.10 lat (msec): min=27, max=638, avg=312.75, stdev=82.00 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 192], 10.00th=[ 213], 20.00th=[ 241], | 30.00th=[ 259], 40.00th=[ 279], 50.00th=[ 296], 60.00th=[ 313], | 70.00th=[ 338], 80.00th=[ 359], 90.00th=[ 401], 95.00th=[ 451], | 99.00th=[ 542], 99.50th=[ 558], 99.90th=[ 609], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 8, max= 159, per=24.69%, avg=65.18, stdev=28.64, samples=150 iops : min= 2, max= 39, avg=15.84, stdev= 7.15, samples=150 write: IOPS=17, BW=69.3KiB/s (71.0kB/s)(5256KiB/75798msec); 0 zone resets slat (usec): min=59, max=9171, avg=304.35, stdev=546.59 clat (msec): min=100, max=1210, avg=624.15, stdev=162.22 lat (msec): min=101, max=1210, avg=624.46, stdev=162.24 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 376], 10.00th=[ 422], 20.00th=[ 489], | 30.00th=[ 535], 40.00th=[ 584], 50.00th=[ 617], 60.00th=[ 659], | 70.00th=[ 693], 80.00th=[ 751], 90.00th=[ 844], 95.00th=[ 911], | 99.00th=[ 1045], 99.50th=[ 1083], 99.90th=[ 1200], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 15, max= 151, per=24.78%, avg=68.15, stdev=22.79, samples=150 iops : min= 3, max= 37, avg=16.59, stdev= 5.69, samples=150 lat (msec) : 20=0.04%, 50=0.23%, 100=0.20%, 250=11.72%, 500=46.52% lat (msec) : 750=30.90%, 1000=9.53%, 2000=0.86% cpu : usr=0.13%, sys=0.85%, ctx=5297, 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=145181: Wed Aug 12 17:11:20 2026 read: IOPS=16, BW=67.0KiB/s (68.6kB/s)(5060KiB/75496msec) slat (usec): min=1932, max=40794, avg=9913.68, stdev=5147.41 clat (msec): min=19, max=668, avg=303.09, stdev=80.98 lat (msec): min=23, max=674, avg=313.01, stdev=81.74 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 194], 10.00th=[ 215], 20.00th=[ 239], | 30.00th=[ 262], 40.00th=[ 279], 50.00th=[ 296], 60.00th=[ 313], | 70.00th=[ 334], 80.00th=[ 363], 90.00th=[ 401], 95.00th=[ 443], | 99.00th=[ 550], 99.50th=[ 584], 99.90th=[ 609], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 8, max= 182, per=25.38%, avg=67.01, stdev=27.24, samples=149 iops : min= 2, max= 45, avg=16.30, stdev= 6.80, samples=149 write: IOPS=17, BW=68.6KiB/s (70.3kB/s)(5180KiB/75496msec); 0 zone resets slat (usec): min=41, max=16398, avg=312.49, stdev=813.46 clat (msec): min=232, max=1195, avg=624.65, stdev=156.42 lat (msec): min=232, max=1195, avg=624.96, stdev=156.44 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 388], 10.00th=[ 435], 20.00th=[ 489], | 30.00th=[ 542], 40.00th=[ 575], 50.00th=[ 609], 60.00th=[ 642], | 70.00th=[ 701], 80.00th=[ 751], 90.00th=[ 835], 95.00th=[ 902], | 99.00th=[ 1045], 99.50th=[ 1083], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 136, per=24.64%, avg=67.77, stdev=21.33, samples=150 iops : min= 1, max= 34, avg=16.49, stdev= 5.33, samples=150 lat (msec) : 20=0.08%, 50=0.27%, 100=0.08%, 250=11.64%, 500=47.15% lat (msec) : 750=30.55%, 1000=9.34%, 2000=0.90% cpu : usr=0.11%, sys=0.89%, ctx=5062, 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=265KiB/s (271kB/s), 65.6KiB/s-67.0KiB/s (67.2kB/s-68.6kB/s), io=19.6MiB (20.5MB), run=75496-75862msec WRITE: bw=275KiB/s (282kB/s), 68.6KiB/s-69.4KiB/s (70.3kB/s-71.1kB/s), io=20.4MiB (21.4MB), run=75496-75862msec 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=145196: Wed Aug 12 17:11:27 2026 read: IOPS=2, BW=117MiB/s (122MB/s)(40.0MiB/343msec) slat (nsec): min=27272k, max=27272k, avg=27272234.00, stdev= 0.00 clat (nsec): min=305109k, max=305109k, avg=305108580.00, stdev= 0.00 lat (nsec): min=332386k, max=332386k, avg=332385826.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 305], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 305], 95.00th=[ 305], | 99.00th=[ 305], 99.50th=[ 305], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.51%, ctx=17, majf=0, minf=8 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=117MiB/s (122MB/s), 117MiB/s-117MiB/s (122MB/s-122MB/s), io=40.0MiB (41.9MB), run=343-343msec 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