== sanity test 398c: run fio to test AIO ================= 20:53:31 (1784940811) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.363573 s, 115 MB/s osc.lustre-OST0000-osc-ffff996d7370c800.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=144684: Fri Jul 24 20:56:03 2026 write: IOPS=18, BW=72.2KiB/s (73.0kB/s)(10.0MiB/141754msec); 0 zone resets slat (usec): min=37, max=14294, avg=260.08, stdev=782.52 clat (msec): min=59, max=1581, avg=884.68, stdev=205.79 lat (msec): min=59, max=1581, avg=884.94, stdev=205.78 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 550], 10.00th=[ 642], 20.00th=[ 726], | 30.00th=[ 785], 40.00th=[ 835], 50.00th=[ 877], 60.00th=[ 927], | 70.00th=[ 986], 80.00th=[ 1045], 90.00th=[ 1133], 95.00th=[ 1217], | 99.00th=[ 1435], 99.50th=[ 1469], 99.90th=[ 1552], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 7, max= 216, per=24.84%, avg=71.55, stdev=25.67, samples=282 iops : min= 1, max= 54, avg=17.47, stdev= 6.47, samples=282 lat (msec) : 100=0.04%, 250=0.31%, 500=3.12%, 750=20.39%, 1000=48.98% lat (msec) : 2000=27.15% cpu : usr=0.06%, sys=0.29%, ctx=2235, 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=144685: Fri Jul 24 20:56:03 2026 write: IOPS=18, BW=72.3KiB/s (74.0kB/s)(10.0MiB/141675msec); 0 zone resets slat (usec): min=37, max=21927, avg=250.43, stdev=888.89 clat (msec): min=350, max=1590, avg=884.18, stdev=203.13 lat (msec): min=350, max=1590, avg=884.44, stdev=203.14 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 558], 10.00th=[ 642], 20.00th=[ 726], | 30.00th=[ 776], 40.00th=[ 827], 50.00th=[ 885], 60.00th=[ 927], | 70.00th=[ 978], 80.00th=[ 1045], 90.00th=[ 1150], 95.00th=[ 1217], | 99.00th=[ 1401], 99.50th=[ 1418], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1586] bw ( KiB/s): min= 8, max= 192, per=24.93%, avg=71.80, stdev=26.68, samples=281 iops : min= 2, max= 48, avg=17.54, stdev= 6.71, samples=281 lat (msec) : 500=3.09%, 750=20.74%, 1000=49.06%, 2000=27.11% cpu : usr=0.05%, sys=0.28%, ctx=1832, 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=144686: Fri Jul 24 20:56:03 2026 write: IOPS=18, BW=72.3KiB/s (74.0kB/s)(10.0MiB/141627msec); 0 zone resets slat (usec): min=35, max=15484, avg=254.13, stdev=802.48 clat (msec): min=125, max=1570, avg=884.44, stdev=205.26 lat (msec): min=140, max=1570, avg=884.69, stdev=205.26 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 550], 10.00th=[ 642], 20.00th=[ 726], | 30.00th=[ 785], 40.00th=[ 835], 50.00th=[ 885], 60.00th=[ 927], | 70.00th=[ 978], 80.00th=[ 1036], 90.00th=[ 1133], 95.00th=[ 1217], | 99.00th=[ 1435], 99.50th=[ 1485], 99.90th=[ 1536], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 7, max= 128, per=25.38%, avg=73.10, stdev=28.86, samples=276 iops : min= 1, max= 32, avg=17.86, stdev= 7.27, samples=276 lat (msec) : 250=0.62%, 500=2.34%, 750=21.02%, 1000=50.59%, 2000=25.43% cpu : usr=0.05%, sys=0.29%, ctx=1985, 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=144687: Fri Jul 24 20:56:03 2026 write: IOPS=18, BW=72.2KiB/s (73.0kB/s)(10.0MiB/141789msec); 0 zone resets slat (usec): min=37, max=17133, avg=239.32, stdev=818.49 clat (msec): min=347, max=1631, avg=884.86, stdev=201.97 lat (msec): min=347, max=1631, avg=885.11, stdev=201.99 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 558], 10.00th=[ 642], 20.00th=[ 718], | 30.00th=[ 776], 40.00th=[ 827], 50.00th=[ 885], 60.00th=[ 936], | 70.00th=[ 986], 80.00th=[ 1045], 90.00th=[ 1150], 95.00th=[ 1217], | 99.00th=[ 1418], 99.50th=[ 1485], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1636] bw ( KiB/s): min= 7, max= 135, per=25.38%, avg=73.11, stdev=29.83, samples=276 iops : min= 1, max= 33, avg=17.86, stdev= 7.49, samples=276 lat (msec) : 500=3.24%, 750=21.84%, 1000=47.50%, 2000=27.42% cpu : usr=0.04%, sys=0.27%, ctx=1547, 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=289KiB/s (296kB/s), 72.2KiB/s-72.3KiB/s (73.0kB/s-74.0kB/s), io=40.0MiB (41.9MB), run=141627-141789msec 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=144717: Fri Jul 24 20:57:48 2026 read: IOPS=13, BW=52.5KiB/s (53.8kB/s)(5048KiB/96166msec) slat (usec): min=2493, max=58008, avg=13167.40, stdev=7234.30 clat (msec): min=9, max=1046, avg=375.30, stdev=106.83 lat (msec): min=17, max=1056, avg=388.48, stdev=107.89 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 236], 10.00th=[ 264], 20.00th=[ 296], | 30.00th=[ 317], 40.00th=[ 338], 50.00th=[ 359], 60.00th=[ 388], | 70.00th=[ 418], 80.00th=[ 447], 90.00th=[ 502], 95.00th=[ 550], | 99.00th=[ 726], 99.50th=[ 802], 99.90th=[ 944], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 118, per=25.07%, avg=52.14, stdev=22.60, samples=190 iops : min= 1, max= 29, avg=12.56, stdev= 5.71, samples=190 write: IOPS=13, BW=53.0KiB/s (55.3kB/s)(5192KiB/96166msec); 0 zone resets slat (usec): min=47, max=15923, avg=302.75, stdev=888.45 clat (msec): min=289, max=1524, avg=804.49, stdev=194.00 lat (msec): min=289, max=1524, avg=804.79, stdev=194.01 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 510], 10.00th=[ 567], 20.00th=[ 642], | 30.00th=[ 693], 40.00th=[ 743], 50.00th=[ 793], 60.00th=[ 844], | 70.00th=[ 894], 80.00th=[ 953], 90.00th=[ 1062], 95.00th=[ 1133], | 99.00th=[ 1351], 99.50th=[ 1469], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 6, max= 104, per=24.69%, avg=53.58, stdev=20.09, samples=190 iops : min= 1, max= 26, avg=12.92, stdev= 5.02, samples=190 lat (msec) : 10=0.04%, 50=0.12%, 100=0.16%, 250=3.05%, 500=43.01% lat (msec) : 750=23.32%, 1000=22.42%, 2000=7.89% cpu : usr=0.08%, sys=0.74%, ctx=4557, 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=144718: Fri Jul 24 20:57:48 2026 read: IOPS=12, BW=51.7KiB/s (52.0kB/s)(4976KiB/96168msec) slat (usec): min=2368, max=57146, avg=12907.82, stdev=7204.03 clat (msec): min=8, max=1264, avg=376.79, stdev=115.58 lat (msec): min=22, max=1297, avg=389.70, stdev=116.98 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 236], 10.00th=[ 264], 20.00th=[ 292], | 30.00th=[ 317], 40.00th=[ 338], 50.00th=[ 359], 60.00th=[ 388], | 70.00th=[ 414], 80.00th=[ 451], 90.00th=[ 514], 95.00th=[ 567], | 99.00th=[ 735], 99.50th=[ 902], 99.90th=[ 1250], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 7, max= 128, per=24.82%, avg=51.63, stdev=22.26, samples=189 iops : min= 1, max= 32, avg=12.43, stdev= 5.56, samples=189 write: IOPS=13, BW=54.7KiB/s (56.1kB/s)(5264KiB/96168msec); 0 zone resets slat (usec): min=36, max=10462, avg=283.50, stdev=624.30 clat (msec): min=309, max=1761, avg=798.09, stdev=197.53 lat (msec): min=309, max=1761, avg=798.37, stdev=197.53 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 502], 10.00th=[ 567], 20.00th=[ 642], | 30.00th=[ 684], 40.00th=[ 735], 50.00th=[ 776], 60.00th=[ 827], | 70.00th=[ 877], 80.00th=[ 961], 90.00th=[ 1053], 95.00th=[ 1150], | 99.00th=[ 1301], 99.50th=[ 1485], 99.90th=[ 1754], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 7, max= 128, per=25.03%, avg=54.32, stdev=20.91, samples=190 iops : min= 1, max= 32, avg=13.10, stdev= 5.26, samples=190 lat (msec) : 10=0.04%, 20=0.04%, 50=0.16%, 100=0.16%, 250=3.32% lat (msec) : 500=41.41%, 750=25.08%, 1000=21.76%, 2000=8.05% cpu : usr=0.10%, sys=0.74%, ctx=4581, 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=144719: Fri Jul 24 20:57:48 2026 read: IOPS=12, BW=51.8KiB/s (53.1kB/s)(4984KiB/96168msec) slat (usec): min=189, max=48229, avg=13233.56, stdev=7541.59 clat (msec): min=33, max=1457, avg=369.96, stdev=118.68 lat (msec): min=33, max=1470, avg=383.20, stdev=119.82 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 228], 10.00th=[ 255], 20.00th=[ 284], | 30.00th=[ 309], 40.00th=[ 334], 50.00th=[ 359], 60.00th=[ 384], | 70.00th=[ 409], 80.00th=[ 443], 90.00th=[ 506], 95.00th=[ 558], | 99.00th=[ 718], 99.50th=[ 802], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 7, max= 135, per=24.79%, avg=51.57, stdev=25.10, samples=190 iops : min= 1, max= 33, avg=12.42, stdev= 6.28, samples=190 write: IOPS=13, BW=54.7KiB/s (55.0kB/s)(5256KiB/96168msec); 0 zone resets slat (usec): min=39, max=14611, avg=332.55, stdev=833.27 clat (msec): min=129, max=1894, avg=805.98, stdev=210.48 lat (msec): min=129, max=1895, avg=806.32, stdev=210.49 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 510], 10.00th=[ 575], 20.00th=[ 642], | 30.00th=[ 693], 40.00th=[ 735], 50.00th=[ 793], 60.00th=[ 835], | 70.00th=[ 894], 80.00th=[ 969], 90.00th=[ 1070], 95.00th=[ 1150], | 99.00th=[ 1385], 99.50th=[ 1552], 99.90th=[ 1888], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 8, max= 127, per=25.05%, avg=54.35, stdev=20.61, samples=189 iops : min= 2, max= 31, avg=13.11, stdev= 5.18, samples=189 lat (msec) : 50=0.39%, 100=0.31%, 250=3.71%, 500=41.41%, 750=24.30% lat (msec) : 1000=21.37%, 2000=8.52% cpu : usr=0.08%, sys=0.72%, ctx=4832, 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=144720: Fri Jul 24 20:57:48 2026 read: IOPS=13, BW=52.9KiB/s (54.1kB/s)(5060KiB/95701msec) slat (usec): min=2719, max=45913, avg=13253.48, stdev=7398.60 clat (msec): min=49, max=1256, avg=377.28, stdev=108.46 lat (msec): min=58, max=1262, avg=390.54, stdev=109.46 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 243], 10.00th=[ 266], 20.00th=[ 296], | 30.00th=[ 321], 40.00th=[ 342], 50.00th=[ 363], 60.00th=[ 388], | 70.00th=[ 414], 80.00th=[ 447], 90.00th=[ 506], 95.00th=[ 558], | 99.00th=[ 743], 99.50th=[ 810], 99.90th=[ 1133], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7, max= 112, per=25.55%, avg=53.15, stdev=21.80, samples=187 iops : min= 1, max= 28, avg=12.81, stdev= 5.50, samples=187 write: IOPS=13, BW=54.1KiB/s (55.4kB/s)(5180KiB/95701msec); 0 zone resets slat (usec): min=38, max=19844, avg=306.59, stdev=840.20 clat (msec): min=126, max=1894, avg=798.29, stdev=201.41 lat (msec): min=127, max=1894, avg=798.60, stdev=201.40 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 510], 10.00th=[ 567], 20.00th=[ 634], | 30.00th=[ 684], 40.00th=[ 735], 50.00th=[ 785], 60.00th=[ 827], | 70.00th=[ 885], 80.00th=[ 953], 90.00th=[ 1062], 95.00th=[ 1150], | 99.00th=[ 1351], 99.50th=[ 1485], 99.90th=[ 1838], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 7, max= 119, per=24.86%, avg=53.94, stdev=21.78, samples=188 iops : min= 1, max= 29, avg=13.00, stdev= 5.46, samples=188 lat (msec) : 50=0.04%, 100=0.23%, 250=3.09%, 500=42.97%, 750=24.80% lat (msec) : 1000=21.13%, 2000=7.73% cpu : usr=0.12%, sys=0.73%, ctx=4821, 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=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=209KiB/s (214kB/s), 51.7KiB/s-52.9KiB/s (52.0kB/s-54.1kB/s), io=19.6MiB (20.5MB), run=95701-96168msec WRITE: bw=217KiB/s (222kB/s), 53.0KiB/s-54.7KiB/s (55.3kB/s-56.1kB/s), io=20.4MiB (21.4MB), run=95701-96168msec 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=144738: Fri Jul 24 20:58:00 2026 read: IOPS=2, BW=84.6MiB/s (88.7MB/s)(40.0MiB/473msec) slat (nsec): min=29174k, max=29174k, avg=29173843.00, stdev= 0.00 clat (nsec): min=427187k, max=427187k, avg=427187303.00, stdev= 0.00 lat (nsec): min=456367k, max=456367k, avg=456366589.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 426], 10.00th=[ 426], 20.00th=[ 426], | 30.00th=[ 426], 40.00th=[ 426], 50.00th=[ 426], 60.00th=[ 426], | 70.00th=[ 426], 80.00th=[ 426], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.75%, ctx=5, majf=0, minf=10 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=84.6MiB/s (88.7MB/s), 84.6MiB/s-84.6MiB/s (88.7MB/s-88.7MB/s), io=40.0MiB (41.9MB), run=473-473msec 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