== sanity test 398c: run fio to test AIO ================= 00:09:32 (1789186172) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.617017 s, 68.0 MB/s osc.lustre-OST0000-osc-ffff98e409838800.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=145222: Sat Sep 12 00:12:00 2026 write: IOPS=18, BW=73.4KiB/s (75.2kB/s)(10.0MiB/139421msec); 0 zone resets slat (usec): min=28, max=14599, avg=273.31, stdev=754.54 clat (msec): min=114, max=1679, avg=870.61, stdev=194.38 lat (msec): min=114, max=1682, avg=870.89, stdev=194.38 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 550], 10.00th=[ 651], 20.00th=[ 743], | 30.00th=[ 793], 40.00th=[ 835], 50.00th=[ 877], 60.00th=[ 911], | 70.00th=[ 953], 80.00th=[ 1011], 90.00th=[ 1099], 95.00th=[ 1183], | 99.00th=[ 1318], 99.50th=[ 1401], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 214, per=25.44%, avg=74.30, stdev=28.94, samples=271 iops : min= 1, max= 53, avg=18.08, stdev= 7.26, samples=271 lat (msec) : 250=0.66%, 500=2.77%, 750=18.40%, 1000=56.33%, 2000=21.84% cpu : usr=0.06%, sys=0.29%, ctx=1658, 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=145223: Sat Sep 12 00:12:00 2026 write: IOPS=18, BW=73.2KiB/s (74.0kB/s)(10.0MiB/139813msec); 0 zone resets slat (usec): min=25, max=21548, avg=283.61, stdev=829.49 clat (msec): min=52, max=1465, avg=872.80, stdev=180.61 lat (msec): min=53, max=1465, avg=873.08, stdev=180.61 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 584], 10.00th=[ 659], 20.00th=[ 743], | 30.00th=[ 793], 40.00th=[ 835], 50.00th=[ 877], 60.00th=[ 911], | 70.00th=[ 953], 80.00th=[ 1011], 90.00th=[ 1099], 95.00th=[ 1167], | 99.00th=[ 1301], 99.50th=[ 1334], 99.90th=[ 1435], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 7, max= 216, per=24.83%, avg=72.49, stdev=27.69, samples=278 iops : min= 1, max= 54, avg=17.63, stdev= 6.94, samples=278 lat (msec) : 100=0.04%, 250=0.66%, 500=2.62%, 750=17.50%, 1000=57.81% lat (msec) : 2000=21.37% cpu : usr=0.05%, sys=0.29%, ctx=1950, 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=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=145224: Sat Sep 12 00:12:00 2026 write: IOPS=18, BW=73.3KiB/s (75.0kB/s)(10.0MiB/139746msec); 0 zone resets slat (usec): min=22, max=16048, avg=270.06, stdev=768.04 clat (msec): min=114, max=1845, avg=872.47, stdev=181.90 lat (msec): min=114, max=1845, avg=872.75, stdev=181.87 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 575], 10.00th=[ 659], 20.00th=[ 743], | 30.00th=[ 802], 40.00th=[ 835], 50.00th=[ 877], 60.00th=[ 911], | 70.00th=[ 953], 80.00th=[ 1011], 90.00th=[ 1099], 95.00th=[ 1167], | 99.00th=[ 1301], 99.50th=[ 1368], 99.90th=[ 1469], 99.95th=[ 1620], | 99.99th=[ 1838] bw ( KiB/s): min= 7, max= 161, per=24.99%, avg=72.98, stdev=27.41, samples=276 iops : min= 1, max= 40, avg=17.75, stdev= 6.86, samples=276 lat (msec) : 250=0.55%, 500=2.89%, 750=17.54%, 1000=57.85%, 2000=21.17% cpu : usr=0.06%, sys=0.27%, ctx=1776, 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=145225: Sat Sep 12 00:12:00 2026 write: IOPS=18, BW=73.2KiB/s (74.0kB/s)(10.0MiB/139814msec); 0 zone resets slat (usec): min=25, max=13587, avg=264.65, stdev=749.38 clat (msec): min=198, max=1466, avg=872.78, stdev=177.77 lat (msec): min=199, max=1466, avg=873.05, stdev=177.74 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 584], 10.00th=[ 667], 20.00th=[ 743], | 30.00th=[ 793], 40.00th=[ 835], 50.00th=[ 877], 60.00th=[ 919], | 70.00th=[ 953], 80.00th=[ 1011], 90.00th=[ 1099], 95.00th=[ 1167], | 99.00th=[ 1284], 99.50th=[ 1334], 99.90th=[ 1435], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 7, max= 184, per=24.82%, avg=72.48, stdev=25.98, samples=278 iops : min= 1, max= 46, avg=17.63, stdev= 6.52, samples=278 lat (msec) : 250=0.04%, 500=3.28%, 750=18.83%, 1000=56.45%, 2000=21.41% cpu : usr=0.05%, sys=0.29%, ctx=1767, 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=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=293KiB/s (300kB/s), 73.2KiB/s-73.4KiB/s (74.0kB/s-75.2kB/s), io=40.0MiB (41.9MB), run=139421-139814msec 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=145255: Sat Sep 12 00:13:41 2026 read: IOPS=13, BW=54.2KiB/s (55.5kB/s)(5048KiB/93120msec) slat (usec): min=3156, max=41187, avg=11641.77, stdev=5544.03 clat (msec): min=21, max=625, avg=367.27, stdev=83.41 lat (msec): min=31, max=647, avg=378.92, stdev=84.10 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 243], 10.00th=[ 268], 20.00th=[ 296], | 30.00th=[ 326], 40.00th=[ 347], 50.00th=[ 372], 60.00th=[ 388], | 70.00th=[ 409], 80.00th=[ 435], 90.00th=[ 472], 95.00th=[ 502], | 99.00th=[ 567], 99.50th=[ 609], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 8, max= 127, per=24.88%, avg=53.49, stdev=24.26, samples=185 iops : min= 2, max= 31, avg=12.87, stdev= 6.09, samples=185 write: IOPS=13, BW=55.8KiB/s (57.1kB/s)(5192KiB/93120msec); 0 zone resets slat (usec): min=32, max=11260, avg=268.88, stdev=591.41 clat (msec): min=246, max=1464, avg=776.92, stdev=198.26 lat (msec): min=246, max=1464, avg=777.19, stdev=198.26 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 464], 10.00th=[ 542], 20.00th=[ 609], | 30.00th=[ 667], 40.00th=[ 726], 50.00th=[ 768], 60.00th=[ 827], | 70.00th=[ 877], 80.00th=[ 944], 90.00th=[ 1028], 95.00th=[ 1116], | 99.00th=[ 1318], 99.50th=[ 1351], 99.90th=[ 1435], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 6, max= 127, per=24.64%, avg=55.18, stdev=19.01, samples=185 iops : min= 1, max= 31, avg=13.29, stdev= 4.76, samples=185 lat (msec) : 50=0.20%, 100=0.20%, 250=2.85%, 500=47.50%, 750=22.11% lat (msec) : 1000=20.59%, 2000=6.56% cpu : usr=0.10%, sys=0.68%, ctx=4321, 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=145256: Sat Sep 12 00:13:41 2026 read: IOPS=13, BW=53.4KiB/s (54.7kB/s)(4976KiB/93121msec) slat (usec): min=2926, max=34753, avg=11536.24, stdev=5367.04 clat (msec): min=12, max=620, avg=365.25, stdev=87.96 lat (msec): min=18, max=638, avg=376.80, stdev=88.74 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 234], 10.00th=[ 262], 20.00th=[ 296], | 30.00th=[ 326], 40.00th=[ 347], 50.00th=[ 368], 60.00th=[ 384], | 70.00th=[ 409], 80.00th=[ 435], 90.00th=[ 477], 95.00th=[ 506], | 99.00th=[ 600], 99.50th=[ 609], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 7, max= 127, per=24.49%, avg=52.64, stdev=23.67, samples=185 iops : min= 1, max= 31, avg=12.66, stdev= 5.95, samples=185 write: IOPS=14, BW=56.5KiB/s (57.9kB/s)(5264KiB/93121msec); 0 zone resets slat (usec): min=34, max=12391, avg=278.59, stdev=695.21 clat (msec): min=224, max=1437, avg=774.06, stdev=196.36 lat (msec): min=224, max=1437, avg=774.35, stdev=196.39 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 456], 10.00th=[ 531], 20.00th=[ 617], | 30.00th=[ 667], 40.00th=[ 718], 50.00th=[ 760], 60.00th=[ 810], | 70.00th=[ 877], 80.00th=[ 944], 90.00th=[ 1020], 95.00th=[ 1099], | 99.00th=[ 1267], 99.50th=[ 1368], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 7, max= 128, per=24.97%, avg=55.94, stdev=22.27, samples=185 iops : min= 1, max= 32, avg=13.48, stdev= 5.59, samples=185 lat (msec) : 20=0.04%, 50=0.27%, 100=0.31%, 250=2.73%, 500=46.09% lat (msec) : 750=23.87%, 1000=20.55%, 2000=6.13% cpu : usr=0.10%, sys=0.67%, ctx=4198, 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=145257: Sat Sep 12 00:13:41 2026 read: IOPS=13, BW=53.6KiB/s (54.9kB/s)(4984KiB/92989msec) slat (usec): min=2928, max=49930, avg=11556.09, stdev=5657.33 clat (msec): min=16, max=620, avg=361.97, stdev=80.19 lat (msec): min=26, max=630, avg=373.53, stdev=81.08 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 243], 10.00th=[ 271], 20.00th=[ 300], | 30.00th=[ 326], 40.00th=[ 342], 50.00th=[ 368], 60.00th=[ 384], | 70.00th=[ 405], 80.00th=[ 426], 90.00th=[ 460], 95.00th=[ 485], | 99.00th=[ 542], 99.50th=[ 567], 99.90th=[ 617], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 7, max= 111, per=24.79%, avg=53.29, stdev=22.07, samples=184 iops : min= 1, max= 27, avg=12.82, stdev= 5.57, samples=184 write: IOPS=14, BW=56.5KiB/s (57.9kB/s)(5256KiB/92989msec); 0 zone resets slat (usec): min=35, max=18180, avg=294.79, stdev=836.41 clat (msec): min=282, max=1458, avg=775.78, stdev=202.18 lat (msec): min=282, max=1458, avg=776.08, stdev=202.18 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 464], 10.00th=[ 523], 20.00th=[ 609], | 30.00th=[ 659], 40.00th=[ 709], 50.00th=[ 760], 60.00th=[ 818], | 70.00th=[ 885], 80.00th=[ 953], 90.00th=[ 1036], 95.00th=[ 1116], | 99.00th=[ 1318], 99.50th=[ 1385], 99.90th=[ 1435], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 15, max= 136, per=24.84%, avg=55.64, stdev=22.20, samples=185 iops : min= 3, max= 34, avg=13.41, stdev= 5.59, samples=185 lat (msec) : 20=0.12%, 50=0.16%, 100=0.27%, 250=2.42%, 500=48.32% lat (msec) : 750=22.11%, 1000=19.73%, 2000=6.88% cpu : usr=0.12%, sys=0.65%, ctx=4196, 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=145258: Sat Sep 12 00:13:41 2026 read: IOPS=13, BW=54.7KiB/s (56.0kB/s)(5060KiB/92515msec) slat (usec): min=66, max=39863, avg=11428.86, stdev=5660.19 clat (msec): min=8, max=882, avg=362.20, stdev=89.79 lat (msec): min=14, max=895, avg=373.64, stdev=90.69 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 232], 10.00th=[ 266], 20.00th=[ 300], | 30.00th=[ 326], 40.00th=[ 342], 50.00th=[ 363], 60.00th=[ 380], | 70.00th=[ 401], 80.00th=[ 426], 90.00th=[ 464], 95.00th=[ 493], | 99.00th=[ 567], 99.50th=[ 634], 99.90th=[ 827], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 142, per=25.27%, avg=54.34, stdev=23.13, samples=183 iops : min= 1, max= 35, avg=13.09, stdev= 5.86, samples=183 write: IOPS=13, BW=55.0KiB/s (57.3kB/s)(5180KiB/92515msec); 0 zone resets slat (usec): min=31, max=12087, avg=296.93, stdev=702.79 clat (msec): min=119, max=1586, avg=776.78, stdev=212.66 lat (msec): min=120, max=1586, avg=777.08, stdev=212.64 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 464], 10.00th=[ 514], 20.00th=[ 600], | 30.00th=[ 659], 40.00th=[ 709], 50.00th=[ 760], 60.00th=[ 810], | 70.00th=[ 869], 80.00th=[ 944], 90.00th=[ 1053], 95.00th=[ 1150], | 99.00th=[ 1368], 99.50th=[ 1385], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 7, max= 111, per=24.72%, avg=55.38, stdev=21.08, samples=183 iops : min= 1, max= 27, avg=13.34, stdev= 5.25, samples=183 lat (msec) : 10=0.04%, 20=0.16%, 50=0.23%, 100=0.27%, 250=3.28% lat (msec) : 500=47.77%, 750=21.68%, 1000=19.49%, 2000=7.07% cpu : usr=0.10%, sys=0.68%, ctx=4109, 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=216KiB/s (221kB/s), 53.4KiB/s-54.7KiB/s (54.7kB/s-56.0kB/s), io=19.6MiB (20.5MB), run=92515-93121msec WRITE: bw=224KiB/s (230kB/s), 55.8KiB/s-56.5KiB/s (57.1kB/s-57.9kB/s), io=20.4MiB (21.4MB), run=92515-93121msec 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=145275: Sat Sep 12 00:13:48 2026 read: IOPS=3, BW=129MiB/s (135MB/s)(40.0MiB/310msec) slat (nsec): min=25545k, max=25545k, avg=25544599.00, stdev= 0.00 clat (nsec): min=264730k, max=264730k, avg=264729652.00, stdev= 0.00 lat (nsec): min=290279k, max=290279k, avg=290278613.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 266], 5.00th=[ 266], 10.00th=[ 266], 20.00th=[ 266], | 30.00th=[ 266], 40.00th=[ 266], 50.00th=[ 266], 60.00th=[ 266], | 70.00th=[ 266], 80.00th=[ 266], 90.00th=[ 266], 95.00th=[ 266], | 99.00th=[ 266], 99.50th=[ 266], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=4.21%, ctx=41, 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=129MiB/s (135MB/s), 129MiB/s-129MiB/s (135MB/s-135MB/s), io=40.0MiB (41.9MB), run=310-310msec 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