== sanity test 398c: run fio to test AIO ================= 23:01:33 (1781233293) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.546809 s, 76.7 MB/s osc.lustre-OST0000-osc-ffff9199c5471000.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=146226: Thu Jun 11 23:04:12 2026 write: IOPS=17, BW=68.7KiB/s (70.3kB/s)(10.0MiB/149154msec); 0 zone resets slat (usec): min=47, max=13379, avg=307.13, stdev=868.72 clat (msec): min=131, max=2355, avg=930.99, stdev=277.77 lat (msec): min=132, max=2355, avg=931.30, stdev=277.78 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 523], 10.00th=[ 659], 20.00th=[ 743], | 30.00th=[ 802], 40.00th=[ 844], 50.00th=[ 902], 60.00th=[ 969], | 70.00th=[ 1028], 80.00th=[ 1099], 90.00th=[ 1250], 95.00th=[ 1401], | 99.00th=[ 1905], 99.50th=[ 2089], 99.90th=[ 2333], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 255, per=24.85%, avg=68.08, stdev=29.73, samples=296 iops : min= 1, max= 63, avg=16.56, stdev= 7.44, samples=296 lat (msec) : 250=1.25%, 500=3.36%, 750=15.82%, 1000=46.02%, 2000=32.97% lat (msec) : >=2000=0.59% cpu : usr=0.05%, sys=0.27%, ctx=2363, 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=146227: Thu Jun 11 23:04:12 2026 write: IOPS=17, BW=68.7KiB/s (70.4kB/s)(10.0MiB/148959msec); 0 zone resets slat (usec): min=41, max=31502, avg=293.46, stdev=1007.46 clat (msec): min=79, max=2349, avg=930.22, stdev=284.53 lat (msec): min=79, max=2349, avg=930.52, stdev=284.55 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 523], 10.00th=[ 667], 20.00th=[ 751], | 30.00th=[ 793], 40.00th=[ 844], 50.00th=[ 894], 60.00th=[ 961], | 70.00th=[ 1028], 80.00th=[ 1099], 90.00th=[ 1267], 95.00th=[ 1435], | 99.00th=[ 1905], 99.50th=[ 2039], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 247, per=25.01%, avg=68.52, stdev=30.56, samples=294 iops : min= 1, max= 61, avg=16.67, stdev= 7.66, samples=294 lat (msec) : 100=0.04%, 250=1.05%, 500=3.52%, 750=15.62%, 1000=46.17% lat (msec) : 2000=32.93%, >=2000=0.66% cpu : usr=0.04%, sys=0.29%, ctx=2323, 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=146228: Thu Jun 11 23:04:12 2026 write: IOPS=17, BW=68.7KiB/s (70.3kB/s)(10.0MiB/149060msec); 0 zone resets slat (usec): min=38, max=17976, avg=300.07, stdev=926.50 clat (msec): min=181, max=2369, avg=930.29, stdev=281.43 lat (msec): min=182, max=2369, avg=930.59, stdev=281.41 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 567], 10.00th=[ 651], 20.00th=[ 743], | 30.00th=[ 793], 40.00th=[ 852], 50.00th=[ 902], 60.00th=[ 961], | 70.00th=[ 1020], 80.00th=[ 1099], 90.00th=[ 1267], 95.00th=[ 1401], | 99.00th=[ 1905], 99.50th=[ 2056], 99.90th=[ 2333], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 215, per=25.36%, avg=69.48, stdev=31.40, samples=290 iops : min= 1, max= 53, avg=16.91, stdev= 7.88, samples=290 lat (msec) : 250=1.68%, 500=2.50%, 750=16.91%, 1000=45.59%, 2000=32.77% lat (msec) : >=2000=0.55% cpu : usr=0.03%, sys=0.27%, ctx=2239, 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=146229: Thu Jun 11 23:04:12 2026 write: IOPS=17, BW=68.7KiB/s (70.3kB/s)(10.0MiB/149061msec); 0 zone resets slat (usec): min=51, max=12449, avg=305.62, stdev=834.47 clat (msec): min=171, max=2330, avg=930.30, stdev=280.59 lat (msec): min=171, max=2330, avg=930.61, stdev=280.56 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 558], 10.00th=[ 659], 20.00th=[ 735], | 30.00th=[ 793], 40.00th=[ 852], 50.00th=[ 911], 60.00th=[ 961], | 70.00th=[ 1020], 80.00th=[ 1099], 90.00th=[ 1267], 95.00th=[ 1401], | 99.00th=[ 1821], 99.50th=[ 2056], 99.90th=[ 2299], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 207, per=25.01%, avg=68.52, stdev=30.19, samples=294 iops : min= 1, max= 51, avg=16.67, stdev= 7.58, samples=294 lat (msec) : 250=1.64%, 500=2.58%, 750=17.93%, 1000=45.00%, 2000=32.34% lat (msec) : >=2000=0.51% cpu : usr=0.05%, sys=0.30%, ctx=2439, 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=275KiB/s (281kB/s), 68.7KiB/s-68.7KiB/s (70.3kB/s-70.4kB/s), io=40.0MiB (41.9MB), run=148959-149154msec 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=146260: Thu Jun 11 23:06:09 2026 read: IOPS=11, BW=46.8KiB/s (47.9kB/s)(5048KiB/107858msec) slat (usec): min=2977, max=47225, avg=13503.21, stdev=7002.87 clat (msec): min=23, max=1135, avg=409.98, stdev=98.29 lat (msec): min=30, max=1152, avg=423.49, stdev=98.56 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 268], 10.00th=[ 300], 20.00th=[ 338], | 30.00th=[ 363], 40.00th=[ 384], 50.00th=[ 405], 60.00th=[ 426], | 70.00th=[ 451], 80.00th=[ 477], 90.00th=[ 523], 95.00th=[ 567], | 99.00th=[ 651], 99.50th=[ 735], 99.90th=[ 1062], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 111, per=25.14%, avg=46.50, stdev=21.34, samples=213 iops : min= 1, max= 27, avg=11.16, stdev= 5.38, samples=213 write: IOPS=12, BW=48.1KiB/s (49.3kB/s)(5192KiB/107858msec); 0 zone resets slat (usec): min=55, max=15324, avg=369.27, stdev=1020.93 clat (msec): min=246, max=1630, avg=914.88, stdev=200.60 lat (msec): min=246, max=1631, avg=915.25, stdev=200.61 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 575], 10.00th=[ 642], 20.00th=[ 743], | 30.00th=[ 827], 40.00th=[ 877], 50.00th=[ 927], 60.00th=[ 969], | 70.00th=[ 1020], 80.00th=[ 1083], 90.00th=[ 1167], 95.00th=[ 1250], | 99.00th=[ 1334], 99.50th=[ 1401], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 7, max= 112, per=24.72%, avg=47.71, stdev=20.36, samples=213 iops : min= 1, max= 28, avg=11.46, stdev= 5.14, samples=213 lat (msec) : 50=0.12%, 100=0.20%, 250=1.21%, 500=41.91%, 750=16.29% lat (msec) : 1000=22.66%, 2000=17.62% cpu : usr=0.11%, sys=0.62%, ctx=4873, 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=146261: Thu Jun 11 23:06:09 2026 read: IOPS=11, BW=46.1KiB/s (47.2kB/s)(4976KiB/108000msec) slat (usec): min=2910, max=41725, avg=13479.02, stdev=6887.96 clat (msec): min=9, max=803, avg=406.74, stdev=92.53 lat (msec): min=18, max=821, avg=420.22, stdev=93.49 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 271], 10.00th=[ 296], 20.00th=[ 330], | 30.00th=[ 359], 40.00th=[ 384], 50.00th=[ 405], 60.00th=[ 426], | 70.00th=[ 447], 80.00th=[ 477], 90.00th=[ 527], 95.00th=[ 575], | 99.00th=[ 651], 99.50th=[ 701], 99.90th=[ 751], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 7, max= 103, per=25.02%, avg=46.30, stdev=21.15, samples=210 iops : min= 1, max= 25, avg=11.10, stdev= 5.30, samples=210 write: IOPS=12, BW=48.7KiB/s (49.9kB/s)(5264KiB/108000msec); 0 zone resets slat (usec): min=53, max=18872, avg=382.89, stdev=1024.24 clat (msec): min=222, max=1410, avg=913.42, stdev=205.91 lat (msec): min=223, max=1410, avg=913.80, stdev=205.91 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 567], 10.00th=[ 634], 20.00th=[ 735], | 30.00th=[ 810], 40.00th=[ 877], 50.00th=[ 936], 60.00th=[ 978], | 70.00th=[ 1020], 80.00th=[ 1083], 90.00th=[ 1183], 95.00th=[ 1250], | 99.00th=[ 1334], 99.50th=[ 1368], 99.90th=[ 1401], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 7, max= 112, per=24.90%, avg=48.06, stdev=19.45, samples=214 iops : min= 1, max= 28, avg=11.54, stdev= 4.91, samples=214 lat (msec) : 10=0.04%, 20=0.04%, 50=0.04%, 100=0.16%, 250=1.02% lat (msec) : 500=41.60%, 750=16.76%, 1000=22.66%, 2000=17.70% cpu : usr=0.09%, sys=0.70%, ctx=4887, 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=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=146262: Thu Jun 11 23:06:09 2026 read: IOPS=11, BW=46.2KiB/s (47.3kB/s)(4984KiB/107934msec) slat (usec): min=2866, max=53981, avg=13882.88, stdev=7420.58 clat (msec): min=22, max=754, avg=406.18, stdev=96.66 lat (msec): min=34, max=771, avg=420.07, stdev=97.39 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 264], 10.00th=[ 292], 20.00th=[ 334], | 30.00th=[ 359], 40.00th=[ 380], 50.00th=[ 401], 60.00th=[ 426], | 70.00th=[ 451], 80.00th=[ 485], 90.00th=[ 531], 95.00th=[ 567], | 99.00th=[ 642], 99.50th=[ 684], 99.90th=[ 709], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 7, max= 127, per=24.85%, avg=45.98, stdev=21.43, samples=213 iops : min= 1, max= 31, avg=11.02, stdev= 5.37, samples=213 write: IOPS=12, BW=48.7KiB/s (49.9kB/s)(5256KiB/107934msec); 0 zone resets slat (usec): min=55, max=14427, avg=334.91, stdev=796.22 clat (msec): min=216, max=1389, avg=913.43, stdev=201.50 lat (msec): min=217, max=1389, avg=913.77, stdev=201.52 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 575], 10.00th=[ 634], 20.00th=[ 751], | 30.00th=[ 827], 40.00th=[ 877], 50.00th=[ 919], 60.00th=[ 969], | 70.00th=[ 1020], 80.00th=[ 1083], 90.00th=[ 1167], 95.00th=[ 1234], | 99.00th=[ 1334], 99.50th=[ 1368], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 15, max= 112, per=24.81%, avg=47.89, stdev=20.51, samples=214 iops : min= 3, max= 28, avg=11.50, stdev= 5.20, samples=214 lat (msec) : 50=0.16%, 100=0.12%, 250=1.52%, 500=40.82%, 750=16.17% lat (msec) : 1000=24.02%, 2000=17.19% cpu : usr=0.07%, sys=0.65%, ctx=4558, 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=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=146263: Thu Jun 11 23:06:09 2026 read: IOPS=11, BW=46.0KiB/s (48.1kB/s)(5060KiB/107745msec) slat (usec): min=89, max=60769, avg=13283.70, stdev=6995.36 clat (msec): min=14, max=1300, avg=409.98, stdev=104.84 lat (msec): min=17, max=1310, avg=423.28, stdev=105.64 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 262], 10.00th=[ 300], 20.00th=[ 334], | 30.00th=[ 359], 40.00th=[ 380], 50.00th=[ 405], 60.00th=[ 426], | 70.00th=[ 451], 80.00th=[ 489], 90.00th=[ 535], 95.00th=[ 575], | 99.00th=[ 659], 99.50th=[ 701], 99.90th=[ 1053], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 7, max= 103, per=25.23%, avg=46.67, stdev=19.76, samples=213 iops : min= 1, max= 25, avg=11.20, stdev= 4.92, samples=213 write: IOPS=12, BW=48.1KiB/s (49.2kB/s)(5180KiB/107745msec); 0 zone resets slat (usec): min=53, max=12966, avg=333.19, stdev=807.78 clat (msec): min=150, max=1926, avg=916.39, stdev=213.66 lat (msec): min=150, max=1926, avg=916.73, stdev=213.67 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 567], 10.00th=[ 651], 20.00th=[ 743], | 30.00th=[ 810], 40.00th=[ 869], 50.00th=[ 919], 60.00th=[ 969], | 70.00th=[ 1020], 80.00th=[ 1083], 90.00th=[ 1183], 95.00th=[ 1250], | 99.00th=[ 1368], 99.50th=[ 1586], 99.90th=[ 1921], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 7, max= 112, per=24.63%, avg=47.54, stdev=20.25, samples=213 iops : min= 1, max= 28, avg=11.41, stdev= 5.12, samples=213 lat (msec) : 20=0.12%, 50=0.08%, 100=0.35%, 250=1.33%, 500=40.47% lat (msec) : 750=17.46%, 1000=22.50%, 2000=17.70% cpu : usr=0.07%, sys=0.64%, ctx=4835, 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=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=186KiB/s (190kB/s), 46.1KiB/s-46.0KiB/s (47.2kB/s-48.1kB/s), io=19.6MiB (20.5MB), run=107745-108000msec WRITE: bw=193KiB/s (198kB/s), 48.1KiB/s-48.7KiB/s (49.2kB/s-49.9kB/s), io=20.4MiB (21.4MB), run=107745-108000msec 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=146285: Thu Jun 11 23:06:21 2026 read: IOPS=1, BW=79.2MiB/s (83.1MB/s)(40.0MiB/505msec) slat (nsec): min=35609k, max=35609k, avg=35608564.00, stdev= 0.00 clat (nsec): min=452254k, max=452254k, avg=452253776.00, stdev= 0.00 lat (nsec): min=487866k, max=487866k, avg=487866242.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 451], 10.00th=[ 451], 20.00th=[ 451], | 30.00th=[ 451], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.78%, ctx=5, 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=79.2MiB/s (83.1MB/s), 79.2MiB/s-79.2MiB/s (83.1MB/s-83.1MB/s), io=40.0MiB (41.9MB), run=505-505msec 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