== sanity test 398c: run fio to test AIO ================= 22:24:33 (1767324273) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.237946 s, 176 MB/s osc.lustre-OST0000-osc-ffff91a75d763800.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=151319: Thu Jan 1 22:26:08 2026 write: IOPS=28, BW=114KiB/s (117kB/s)(10.0MiB/89842msec); 0 zone resets slat (usec): min=21, max=6221, avg=163.34, stdev=357.41 clat (msec): min=138, max=993, avg=561.06, stdev=141.16 lat (msec): min=139, max=993, avg=561.23, stdev=141.17 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 330], 10.00th=[ 388], 20.00th=[ 447], | 30.00th=[ 489], 40.00th=[ 527], 50.00th=[ 558], 60.00th=[ 592], | 70.00th=[ 625], 80.00th=[ 676], 90.00th=[ 743], 95.00th=[ 802], | 99.00th=[ 911], 99.50th=[ 936], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 995] bw ( KiB/s): min= 8, max= 264, per=24.84%, avg=113.02, stdev=33.56, samples=179 iops : min= 2, max= 66, avg=27.91, stdev= 8.40, samples=179 lat (msec) : 250=2.19%, 500=30.62%, 750=57.81%, 1000=9.38% cpu : usr=0.08%, sys=0.34%, ctx=2598, 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=151320: Thu Jan 1 22:26:08 2026 write: IOPS=28, BW=114KiB/s (117kB/s)(10.0MiB/89984msec); 0 zone resets slat (usec): min=22, max=7915, avg=171.42, stdev=403.48 clat (msec): min=197, max=986, avg=561.40, stdev=138.51 lat (msec): min=197, max=987, avg=561.58, stdev=138.51 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 347], 10.00th=[ 393], 20.00th=[ 451], | 30.00th=[ 489], 40.00th=[ 523], 50.00th=[ 558], 60.00th=[ 592], | 70.00th=[ 625], 80.00th=[ 667], 90.00th=[ 743], 95.00th=[ 810], | 99.00th=[ 894], 99.50th=[ 911], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 40, max= 280, per=24.86%, avg=113.13, stdev=32.71, samples=179 iops : min= 10, max= 70, avg=27.94, stdev= 8.19, samples=179 lat (msec) : 250=1.80%, 500=30.82%, 750=58.16%, 1000=9.22% cpu : usr=0.07%, sys=0.35%, ctx=2718, 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=151321: Thu Jan 1 22:26:08 2026 write: IOPS=28, BW=114KiB/s (117kB/s)(10.0MiB/89987msec); 0 zone resets slat (usec): min=22, max=7451, avg=169.66, stdev=417.42 clat (msec): min=189, max=984, avg=561.47, stdev=138.89 lat (msec): min=189, max=985, avg=561.64, stdev=138.90 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 347], 10.00th=[ 388], 20.00th=[ 456], | 30.00th=[ 493], 40.00th=[ 527], 50.00th=[ 558], 60.00th=[ 592], | 70.00th=[ 625], 80.00th=[ 676], 90.00th=[ 743], 95.00th=[ 810], | 99.00th=[ 894], 99.50th=[ 919], 99.90th=[ 961], 99.95th=[ 978], | 99.99th=[ 986] bw ( KiB/s): min= 24, max= 256, per=24.87%, avg=113.14, stdev=32.31, samples=179 iops : min= 6, max= 64, avg=27.94, stdev= 8.10, samples=179 lat (msec) : 250=2.11%, 500=30.43%, 750=57.97%, 1000=9.49% cpu : usr=0.08%, sys=0.35%, ctx=2421, 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=151322: Thu Jan 1 22:26:08 2026 write: IOPS=28, BW=114KiB/s (117kB/s)(10.0MiB/89989msec); 0 zone resets slat (usec): min=22, max=10724, avg=182.39, stdev=528.52 clat (msec): min=154, max=985, avg=561.24, stdev=140.90 lat (msec): min=154, max=985, avg=561.42, stdev=140.93 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 326], 10.00th=[ 397], 20.00th=[ 451], | 30.00th=[ 493], 40.00th=[ 527], 50.00th=[ 558], 60.00th=[ 592], | 70.00th=[ 625], 80.00th=[ 676], 90.00th=[ 751], 95.00th=[ 802], | 99.00th=[ 902], 99.50th=[ 927], 99.90th=[ 969], 99.95th=[ 978], | 99.99th=[ 986] bw ( KiB/s): min= 40, max= 256, per=24.84%, avg=113.04, stdev=34.50, samples=179 iops : min= 10, max= 64, avg=27.92, stdev= 8.67, samples=179 lat (msec) : 250=2.15%, 500=30.00%, 750=58.12%, 1000=9.73% cpu : usr=0.08%, sys=0.33%, ctx=2517, 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 Run status group 0 (all jobs): WRITE: bw=455KiB/s (466kB/s), 114KiB/s-114KiB/s (117kB/s-117kB/s), io=40.0MiB (41.9MB), run=89842-89989msec 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=151344: Thu Jan 1 22:27:13 2026 read: IOPS=20, BW=82.2KiB/s (84.2kB/s)(5048KiB/61374msec) slat (usec): min=1570, max=35055, avg=8149.08, stdev=4249.98 clat (msec): min=28, max=555, avg=243.18, stdev=63.94 lat (msec): min=35, max=561, avg=251.34, stdev=64.83 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 157], 10.00th=[ 174], 20.00th=[ 190], | 30.00th=[ 209], 40.00th=[ 222], 50.00th=[ 239], 60.00th=[ 253], | 70.00th=[ 271], 80.00th=[ 292], 90.00th=[ 326], 95.00th=[ 355], | 99.00th=[ 405], 99.50th=[ 481], 99.90th=[ 550], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 23, max= 166, per=24.99%, avg=81.47, stdev=31.44, samples=122 iops : min= 5, max= 41, avg=19.98, stdev= 7.86, samples=122 write: IOPS=21, BW=84.6KiB/s (86.6kB/s)(5192KiB/61374msec); 0 zone resets slat (usec): min=27, max=7835, avg=213.99, stdev=497.27 clat (msec): min=193, max=991, avg=510.42, stdev=130.59 lat (msec): min=193, max=991, avg=510.64, stdev=130.59 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 326], 10.00th=[ 351], 20.00th=[ 397], | 30.00th=[ 435], 40.00th=[ 468], 50.00th=[ 502], 60.00th=[ 542], | 70.00th=[ 584], 80.00th=[ 609], 90.00th=[ 667], 95.00th=[ 743], | 99.00th=[ 911], 99.50th=[ 944], 99.90th=[ 986], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 23, max= 143, per=24.72%, avg=84.05, stdev=23.94, samples=122 iops : min= 5, max= 35, avg=20.62, stdev= 5.98, samples=122 lat (msec) : 50=0.31%, 100=0.16%, 250=28.48%, 500=45.20%, 750=23.44% lat (msec) : 1000=2.42% cpu : usr=0.11%, sys=0.85%, ctx=5139, 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=151345: Thu Jan 1 22:27:13 2026 read: IOPS=20, BW=81.0KiB/s (82.9kB/s)(4976KiB/61430msec) slat (usec): min=52, max=33845, avg=7889.02, stdev=4076.32 clat (msec): min=10, max=490, avg=245.04, stdev=62.45 lat (msec): min=12, max=495, avg=252.94, stdev=63.41 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 161], 10.00th=[ 174], 20.00th=[ 194], | 30.00th=[ 211], 40.00th=[ 228], 50.00th=[ 241], 60.00th=[ 255], | 70.00th=[ 271], 80.00th=[ 292], 90.00th=[ 334], 95.00th=[ 355], | 99.00th=[ 401], 99.50th=[ 418], 99.90th=[ 485], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 15, max= 167, per=24.62%, avg=80.27, stdev=30.70, samples=122 iops : min= 3, max= 41, avg=19.67, stdev= 7.73, samples=122 write: IOPS=21, BW=85.7KiB/s (87.7kB/s)(5264KiB/61430msec); 0 zone resets slat (usec): min=34, max=6172, avg=183.59, stdev=355.08 clat (msec): min=59, max=1016, avg=507.20, stdev=138.75 lat (msec): min=59, max=1016, avg=507.38, stdev=138.78 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 300], 10.00th=[ 342], 20.00th=[ 384], | 30.00th=[ 430], 40.00th=[ 464], 50.00th=[ 502], 60.00th=[ 550], | 70.00th=[ 575], 80.00th=[ 617], 90.00th=[ 667], 95.00th=[ 743], | 99.00th=[ 919], 99.50th=[ 995], 99.90th=[ 1003], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 24, max= 160, per=25.02%, avg=85.07, stdev=27.22, samples=122 iops : min= 6, max= 40, avg=20.88, stdev= 6.74, samples=122 lat (msec) : 20=0.12%, 50=0.12%, 100=0.43%, 250=28.05%, 500=45.31% lat (msec) : 750=23.75%, 1000=2.07%, 2000=0.16% cpu : usr=0.13%, sys=0.80%, ctx=4936, 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=151346: Thu Jan 1 22:27:13 2026 read: IOPS=20, BW=81.1KiB/s (83.1kB/s)(4984KiB/61430msec) slat (usec): min=1836, max=26352, avg=7795.00, stdev=3932.31 clat (msec): min=10, max=505, avg=241.80, stdev=61.35 lat (msec): min=16, max=522, avg=249.60, stdev=62.09 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 157], 10.00th=[ 174], 20.00th=[ 192], | 30.00th=[ 211], 40.00th=[ 226], 50.00th=[ 239], 60.00th=[ 251], | 70.00th=[ 271], 80.00th=[ 288], 90.00th=[ 321], 95.00th=[ 351], | 99.00th=[ 388], 99.50th=[ 414], 99.90th=[ 477], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 7, max= 191, per=24.80%, avg=80.84, stdev=33.19, samples=122 iops : min= 1, max= 47, avg=19.81, stdev= 8.31, samples=122 write: IOPS=21, BW=85.6KiB/s (87.6kB/s)(5256KiB/61430msec); 0 zone resets slat (usec): min=29, max=6235, avg=198.46, stdev=405.13 clat (msec): min=151, max=1038, avg=509.89, stdev=135.24 lat (msec): min=151, max=1038, avg=510.09, stdev=135.24 clat percentiles (msec): | 1.00th=[ 247], 5.00th=[ 309], 10.00th=[ 342], 20.00th=[ 384], | 30.00th=[ 430], 40.00th=[ 464], 50.00th=[ 502], 60.00th=[ 550], | 70.00th=[ 584], 80.00th=[ 617], 90.00th=[ 667], 95.00th=[ 743], | 99.00th=[ 877], 99.50th=[ 919], 99.90th=[ 995], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 24, max= 144, per=24.91%, avg=84.69, stdev=23.64, samples=122 iops : min= 6, max= 36, avg=20.78, stdev= 5.89, samples=122 lat (msec) : 20=0.12%, 50=0.23%, 100=0.27%, 250=28.79%, 500=44.88% lat (msec) : 750=23.16%, 1000=2.50%, 2000=0.04% cpu : usr=0.13%, sys=0.87%, ctx=4832, 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=151347: Thu Jan 1 22:27:13 2026 read: IOPS=20, BW=82.5KiB/s (84.5kB/s)(5060KiB/61344msec) slat (usec): min=1915, max=34723, avg=8141.78, stdev=4195.35 clat (msec): min=16, max=522, avg=245.31, stdev=60.71 lat (msec): min=19, max=528, avg=253.46, stdev=61.38 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 163], 10.00th=[ 176], 20.00th=[ 194], | 30.00th=[ 211], 40.00th=[ 226], 50.00th=[ 239], 60.00th=[ 255], | 70.00th=[ 271], 80.00th=[ 296], 90.00th=[ 330], 95.00th=[ 351], | 99.00th=[ 401], 99.50th=[ 430], 99.90th=[ 481], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 7, max= 152, per=25.10%, avg=81.84, stdev=27.62, samples=122 iops : min= 1, max= 38, avg=20.06, stdev= 6.95, samples=122 write: IOPS=21, BW=84.4KiB/s (86.5kB/s)(5180KiB/61344msec); 0 zone resets slat (usec): min=31, max=6466, avg=200.98, stdev=407.93 clat (msec): min=135, max=1068, avg=508.56, stdev=136.89 lat (msec): min=135, max=1068, avg=508.76, stdev=136.91 clat percentiles (msec): | 1.00th=[ 266], 5.00th=[ 305], 10.00th=[ 342], 20.00th=[ 384], | 30.00th=[ 430], 40.00th=[ 464], 50.00th=[ 498], 60.00th=[ 535], | 70.00th=[ 575], 80.00th=[ 617], 90.00th=[ 667], 95.00th=[ 743], | 99.00th=[ 919], 99.50th=[ 1003], 99.90th=[ 1045], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 24, max= 176, per=24.62%, avg=83.70, stdev=25.63, samples=122 iops : min= 6, max= 44, avg=20.53, stdev= 6.39, samples=122 lat (msec) : 20=0.04%, 50=0.20%, 100=0.08%, 250=28.71%, 500=46.02% lat (msec) : 750=22.62%, 1000=2.03%, 2000=0.31% cpu : usr=0.13%, sys=0.89%, ctx=5063, 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=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=327KiB/s (335kB/s), 81.0KiB/s-82.5KiB/s (82.9kB/s-84.5kB/s), io=19.6MiB (20.5MB), run=61344-61430msec WRITE: bw=340KiB/s (348kB/s), 84.4KiB/s-85.7KiB/s (86.5kB/s-87.7kB/s), io=20.4MiB (21.4MB), run=61344-61430msec 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=151359: Thu Jan 1 22:27:18 2026 read: IOPS=3, BW=124MiB/s (130MB/s)(40.0MiB/323msec) slat (nsec): min=24358k, max=24358k, avg=24358316.00, stdev= 0.00 clat (nsec): min=284259k, max=284259k, avg=284259015.00, stdev= 0.00 lat (nsec): min=308626k, max=308626k, avg=308625754.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 284], 60.00th=[ 284], | 70.00th=[ 284], 80.00th=[ 284], 90.00th=[ 284], 95.00th=[ 284], | 99.00th=[ 284], 99.50th=[ 284], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.73%, ctx=13, 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=124MiB/s (130MB/s), 124MiB/s-124MiB/s (130MB/s-130MB/s), io=40.0MiB (41.9MB), run=323-323msec 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