== sanity test 398c: run fio to test AIO ================= 17:03:48 (1786309428) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.464124 s, 90.4 MB/s osc.lustre-OST0000-osc-ffff953307887800.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=145342: Sun Aug 9 17:06:23 2026 write: IOPS=17, BW=70.8KiB/s (72.5kB/s)(10.0MiB/144590msec); 0 zone resets slat (usec): min=35, max=19130, avg=272.49, stdev=949.48 clat (msec): min=135, max=1690, avg=903.09, stdev=224.33 lat (msec): min=136, max=1690, avg=903.36, stdev=224.31 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 567], 10.00th=[ 659], 20.00th=[ 735], | 30.00th=[ 802], 40.00th=[ 860], 50.00th=[ 902], 60.00th=[ 944], | 70.00th=[ 1003], 80.00th=[ 1070], 90.00th=[ 1183], 95.00th=[ 1284], | 99.00th=[ 1469], 99.50th=[ 1502], 99.90th=[ 1586], 99.95th=[ 1620], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 214, per=24.78%, avg=70.13, stdev=33.54, samples=287 iops : min= 1, max= 53, avg=17.01, stdev= 8.37, samples=287 lat (msec) : 250=0.90%, 500=2.50%, 750=18.59%, 1000=47.70%, 2000=30.31% cpu : usr=0.04%, sys=0.31%, ctx=2140, 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=145343: Sun Aug 9 17:06:23 2026 write: IOPS=17, BW=70.9KiB/s (72.6kB/s)(10.0MiB/144447msec); 0 zone resets slat (usec): min=35, max=16359, avg=250.39, stdev=752.46 clat (msec): min=259, max=1668, avg=901.84, stdev=218.16 lat (msec): min=259, max=1668, avg=902.10, stdev=218.16 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 567], 10.00th=[ 651], 20.00th=[ 743], | 30.00th=[ 810], 40.00th=[ 860], 50.00th=[ 894], 60.00th=[ 936], | 70.00th=[ 995], 80.00th=[ 1062], 90.00th=[ 1167], 95.00th=[ 1284], | 99.00th=[ 1502], 99.50th=[ 1586], 99.90th=[ 1636], 99.95th=[ 1653], | 99.99th=[ 1670] bw ( KiB/s): min= 7, max= 255, per=25.15%, avg=71.17, stdev=30.34, samples=283 iops : min= 1, max= 63, avg=17.28, stdev= 7.58, samples=283 lat (msec) : 500=2.93%, 750=18.28%, 1000=50.20%, 2000=28.59% cpu : usr=0.05%, sys=0.32%, ctx=2183, 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=145344: Sun Aug 9 17:06:23 2026 write: IOPS=17, BW=70.9KiB/s (72.6kB/s)(10.0MiB/144377msec); 0 zone resets slat (usec): min=37, max=17638, avg=263.75, stdev=911.65 clat (msec): min=181, max=1688, avg=901.82, stdev=226.45 lat (msec): min=181, max=1689, avg=902.08, stdev=226.46 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 575], 10.00th=[ 642], 20.00th=[ 743], | 30.00th=[ 802], 40.00th=[ 852], 50.00th=[ 894], 60.00th=[ 944], | 70.00th=[ 995], 80.00th=[ 1062], 90.00th=[ 1183], 95.00th=[ 1284], | 99.00th=[ 1502], 99.50th=[ 1552], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 255, per=25.13%, avg=71.13, stdev=31.24, samples=283 iops : min= 1, max= 63, avg=17.26, stdev= 7.81, samples=283 lat (msec) : 250=0.62%, 500=2.97%, 750=18.52%, 1000=48.36%, 2000=29.53% cpu : usr=0.04%, sys=0.30%, ctx=2096, 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=145345: Sun Aug 9 17:06:23 2026 write: IOPS=17, BW=70.8KiB/s (72.5kB/s)(10.0MiB/144597msec); 0 zone resets slat (usec): min=36, max=14404, avg=272.80, stdev=853.11 clat (msec): min=303, max=1669, avg=902.80, stdev=217.95 lat (msec): min=303, max=1669, avg=903.08, stdev=217.94 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 567], 10.00th=[ 651], 20.00th=[ 743], | 30.00th=[ 802], 40.00th=[ 852], 50.00th=[ 902], 60.00th=[ 944], | 70.00th=[ 995], 80.00th=[ 1070], 90.00th=[ 1183], 95.00th=[ 1284], | 99.00th=[ 1452], 99.50th=[ 1502], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1670] bw ( KiB/s): min= 7, max= 255, per=25.34%, avg=71.70, stdev=30.70, samples=281 iops : min= 1, max= 63, avg=17.41, stdev= 7.65, samples=281 lat (msec) : 500=3.32%, 750=17.85%, 1000=50.04%, 2000=28.79% cpu : usr=0.04%, sys=0.31%, ctx=2294, 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=283KiB/s (290kB/s), 70.8KiB/s-70.9KiB/s (72.5kB/s-72.6kB/s), io=40.0MiB (41.9MB), run=144377-144597msec 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=145375: Sun Aug 9 17:08:30 2026 read: IOPS=10, BW=42.7KiB/s (43.8kB/s)(5048KiB/118110msec) slat (usec): min=3223, max=60443, avg=15455.71, stdev=8847.14 clat (msec): min=27, max=1916, avg=455.58, stdev=148.05 lat (msec): min=42, max=1925, avg=471.04, stdev=149.69 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 292], 10.00th=[ 326], 20.00th=[ 359], | 30.00th=[ 384], 40.00th=[ 409], 50.00th=[ 435], 60.00th=[ 460], | 70.00th=[ 498], 80.00th=[ 535], 90.00th=[ 600], 95.00th=[ 693], | 99.00th=[ 844], 99.50th=[ 1003], 99.90th=[ 1888], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 7, max= 95, per=25.36%, avg=42.85, stdev=19.64, samples=231 iops : min= 1, max= 23, avg=10.21, stdev= 4.94, samples=231 write: IOPS=10, BW=43.0KiB/s (45.0kB/s)(5192KiB/118110msec); 0 zone resets slat (usec): min=59, max=15627, avg=331.56, stdev=973.37 clat (msec): min=368, max=2369, avg=992.34, stdev=293.27 lat (msec): min=368, max=2369, avg=992.68, stdev=293.26 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 592], 10.00th=[ 651], 20.00th=[ 751], | 30.00th=[ 835], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1020], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1401], 95.00th=[ 1519], | 99.00th=[ 1871], 99.50th=[ 2005], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 112, per=24.96%, avg=43.93, stdev=19.33, samples=231 iops : min= 1, max= 28, avg=10.48, stdev= 4.86, samples=231 lat (msec) : 50=0.20%, 100=0.16%, 250=0.47%, 500=34.92%, 750=22.07% lat (msec) : 1000=20.59%, 2000=21.33%, >=2000=0.27% cpu : usr=0.11%, sys=0.66%, ctx=4823, 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=145376: Sun Aug 9 17:08:30 2026 read: IOPS=10, BW=41.0KiB/s (42.0kB/s)(4976KiB/118514msec) slat (usec): min=3063, max=63097, avg=15593.98, stdev=9057.84 clat (msec): min=21, max=992, avg=454.25, stdev=125.81 lat (msec): min=34, max=997, avg=469.85, stdev=127.26 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 292], 10.00th=[ 326], 20.00th=[ 359], | 30.00th=[ 388], 40.00th=[ 414], 50.00th=[ 439], 60.00th=[ 464], | 70.00th=[ 498], 80.00th=[ 531], 90.00th=[ 609], 95.00th=[ 693], | 99.00th=[ 860], 99.50th=[ 902], 99.90th=[ 969], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7, max= 103, per=24.89%, avg=42.06, stdev=20.06, samples=231 iops : min= 1, max= 25, avg=10.01, stdev= 5.04, samples=231 write: IOPS=11, BW=44.4KiB/s (45.5kB/s)(5264KiB/118514msec); 0 zone resets slat (usec): min=54, max=23037, avg=351.90, stdev=1253.00 clat (msec): min=201, max=2053, avg=993.49, stdev=286.11 lat (msec): min=201, max=2053, avg=993.85, stdev=286.11 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 600], 10.00th=[ 659], 20.00th=[ 768], | 30.00th=[ 835], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1234], 90.00th=[ 1385], 95.00th=[ 1536], | 99.00th=[ 1720], 99.50th=[ 1838], 99.90th=[ 2039], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 7, max= 112, per=24.84%, avg=43.71, stdev=20.00, samples=235 iops : min= 1, max= 28, avg=10.42, stdev= 5.05, samples=235 lat (msec) : 50=0.16%, 100=0.27%, 250=0.43%, 500=34.88%, 750=20.86% lat (msec) : 1000=21.64%, 2000=21.68%, >=2000=0.08% cpu : usr=0.09%, sys=0.66%, ctx=4760, 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=145377: Sun Aug 9 17:08:30 2026 read: IOPS=10, BW=42.1KiB/s (43.1kB/s)(4984KiB/118315msec) slat (usec): min=81, max=64358, avg=15811.53, stdev=9269.68 clat (msec): min=17, max=1481, avg=453.36, stdev=128.65 lat (msec): min=26, max=1491, avg=469.18, stdev=130.61 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 292], 10.00th=[ 326], 20.00th=[ 368], | 30.00th=[ 388], 40.00th=[ 409], 50.00th=[ 435], 60.00th=[ 468], | 70.00th=[ 502], 80.00th=[ 542], 90.00th=[ 600], 95.00th=[ 667], | 99.00th=[ 835], 99.50th=[ 919], 99.90th=[ 1011], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 7, max= 96, per=25.10%, avg=42.42, stdev=19.32, samples=231 iops : min= 1, max= 24, avg=10.10, stdev= 4.90, samples=231 write: IOPS=11, BW=44.4KiB/s (45.5kB/s)(5256KiB/118315msec); 0 zone resets slat (usec): min=53, max=16385, avg=341.65, stdev=1090.36 clat (msec): min=161, max=2503, avg=993.55, stdev=307.61 lat (msec): min=161, max=2504, avg=993.90, stdev=307.61 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 575], 10.00th=[ 651], 20.00th=[ 760], | 30.00th=[ 827], 40.00th=[ 885], 50.00th=[ 944], 60.00th=[ 1011], | 70.00th=[ 1083], 80.00th=[ 1217], 90.00th=[ 1418], 95.00th=[ 1586], | 99.00th=[ 1888], 99.50th=[ 2123], 99.90th=[ 2400], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 104, per=25.18%, avg=44.31, stdev=21.58, samples=231 iops : min= 1, max= 26, avg=10.58, stdev= 5.44, samples=231 lat (msec) : 20=0.04%, 50=0.20%, 100=0.35%, 250=0.90%, 500=33.20% lat (msec) : 750=22.70%, 1000=21.56%, 2000=20.74%, >=2000=0.31% cpu : usr=0.11%, sys=0.61%, ctx=4617, 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=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=145378: Sun Aug 9 17:08:30 2026 read: IOPS=10, BW=42.7KiB/s (43.8kB/s)(5060KiB/118375msec) slat (usec): min=2748, max=71922, avg=15924.15, stdev=9392.38 clat (msec): min=22, max=1416, avg=457.93, stdev=129.51 lat (msec): min=32, max=1441, avg=473.86, stdev=131.56 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 296], 10.00th=[ 330], 20.00th=[ 359], | 30.00th=[ 384], 40.00th=[ 409], 50.00th=[ 439], 60.00th=[ 468], | 70.00th=[ 502], 80.00th=[ 542], 90.00th=[ 625], 95.00th=[ 701], | 99.00th=[ 827], 99.50th=[ 885], 99.90th=[ 1234], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 7, max= 103, per=25.63%, avg=43.32, stdev=20.60, samples=229 iops : min= 1, max= 25, avg=10.32, stdev= 5.19, samples=229 write: IOPS=10, BW=43.8KiB/s (44.8kB/s)(5180KiB/118375msec); 0 zone resets slat (usec): min=40, max=25450, avg=382.02, stdev=1301.13 clat (msec): min=76, max=2187, avg=996.00, stdev=288.17 lat (msec): min=76, max=2187, avg=996.38, stdev=288.15 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 584], 10.00th=[ 651], 20.00th=[ 768], | 30.00th=[ 852], 40.00th=[ 902], 50.00th=[ 953], 60.00th=[ 1011], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1401], 95.00th=[ 1552], | 99.00th=[ 1787], 99.50th=[ 1972], 99.90th=[ 2165], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 112, per=24.68%, avg=43.43, stdev=20.02, samples=233 iops : min= 1, max= 28, avg=10.35, stdev= 5.05, samples=233 lat (msec) : 50=0.12%, 100=0.12%, 250=0.62%, 500=34.26%, 750=21.80% lat (msec) : 1000=21.84%, 2000=21.13%, >=2000=0.12% cpu : usr=0.10%, sys=0.62%, ctx=4593, 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=169KiB/s (173kB/s), 41.0KiB/s-42.7KiB/s (42.0kB/s-43.8kB/s), io=19.6MiB (20.5MB), run=118110-118514msec WRITE: bw=176KiB/s (181kB/s), 43.8KiB/s-44.4KiB/s (44.8kB/s-45.5kB/s), io=20.4MiB (21.4MB), run=118110-118514msec 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=145399: Sun Aug 9 17:08:42 2026 read: IOPS=1, BW=78.3MiB/s (82.1MB/s)(40.0MiB/511msec) slat (nsec): min=51859k, max=51859k, avg=51859336.00, stdev= 0.00 clat (nsec): min=433545k, max=433545k, avg=433545070.00, stdev= 0.00 lat (nsec): min=485410k, max=485410k, avg=485409901.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 435], 50.00th=[ 435], 60.00th=[ 435], | 70.00th=[ 435], 80.00th=[ 435], 90.00th=[ 435], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.55%, ctx=5, 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=78.3MiB/s (82.1MB/s), 78.3MiB/s-78.3MiB/s (82.1MB/s-82.1MB/s), io=40.0MiB (41.9MB), run=511-511msec 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