== sanity test 398c: run fio to test AIO ================= 16:36:06 (1788640566) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.263905 s, 159 MB/s osc.lustre-OST0000-osc-ffff91a4eb749800.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=146156: Sat Sep 5 16:39:10 2026 write: IOPS=14, BW=58.9KiB/s (60.3kB/s)(10.0MiB/173936msec); 0 zone resets slat (usec): min=29, max=19377, avg=212.08, stdev=896.14 clat (msec): min=128, max=2237, avg=1085.78, stdev=312.01 lat (msec): min=128, max=2237, avg=1085.99, stdev=312.04 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 642], 10.00th=[ 735], 20.00th=[ 844], | 30.00th=[ 919], 40.00th=[ 986], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1334], 90.00th=[ 1485], 95.00th=[ 1670], | 99.00th=[ 1955], 99.50th=[ 2039], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 171, per=25.57%, avg=60.08, stdev=28.92, samples=334 iops : min= 1, max= 42, avg=14.56, stdev= 7.26, samples=334 lat (msec) : 250=0.62%, 500=0.90%, 750=8.87%, 1000=33.09%, 2000=55.78% lat (msec) : >=2000=0.74% cpu : usr=0.04%, sys=0.19%, 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=146157: Sat Sep 5 16:39:10 2026 write: IOPS=14, BW=58.9KiB/s (60.4kB/s)(10.0MiB/173719msec); 0 zone resets slat (usec): min=22, max=24740, avg=238.08, stdev=1147.85 clat (msec): min=170, max=2224, avg=1085.11, stdev=312.67 lat (msec): min=170, max=2224, avg=1085.35, stdev=312.67 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 625], 10.00th=[ 726], 20.00th=[ 844], | 30.00th=[ 911], 40.00th=[ 969], 50.00th=[ 1053], 60.00th=[ 1133], | 70.00th=[ 1217], 80.00th=[ 1318], 90.00th=[ 1502], 95.00th=[ 1703], | 99.00th=[ 1938], 99.50th=[ 1972], 99.90th=[ 2165], 99.95th=[ 2198], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 172, per=25.41%, avg=59.72, stdev=28.66, samples=336 iops : min= 1, max= 43, avg=14.47, stdev= 7.22, samples=336 lat (msec) : 250=0.62%, 500=0.70%, 750=9.73%, 1000=32.30%, 2000=56.29% lat (msec) : >=2000=0.35% cpu : usr=0.05%, sys=0.20%, ctx=1807, 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=146158: Sat Sep 5 16:39:10 2026 write: IOPS=14, BW=58.8KiB/s (60.2kB/s)(10.0MiB/174077msec); 0 zone resets slat (usec): min=26, max=15324, avg=215.11, stdev=830.42 clat (msec): min=206, max=2124, avg=1086.69, stdev=312.42 lat (msec): min=206, max=2124, avg=1086.91, stdev=312.44 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 642], 10.00th=[ 735], 20.00th=[ 844], | 30.00th=[ 911], 40.00th=[ 978], 50.00th=[ 1045], 60.00th=[ 1133], | 70.00th=[ 1200], 80.00th=[ 1318], 90.00th=[ 1519], 95.00th=[ 1687], | 99.00th=[ 1955], 99.50th=[ 1989], 99.90th=[ 2056], 99.95th=[ 2056], | 99.99th=[ 2123] bw ( KiB/s): min= 7, max= 144, per=26.26%, avg=61.71, stdev=30.63, samples=326 iops : min= 1, max= 36, avg=14.96, stdev= 7.67, samples=326 lat (msec) : 250=0.62%, 500=0.82%, 750=9.18%, 1000=33.55%, 2000=55.55% lat (msec) : >=2000=0.27% cpu : usr=0.05%, sys=0.20%, ctx=1963, 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=146159: Sat Sep 5 16:39:10 2026 write: IOPS=14, BW=58.8KiB/s (60.2kB/s)(10.0MiB/174125msec); 0 zone resets slat (usec): min=30, max=18645, avg=205.67, stdev=943.17 clat (msec): min=232, max=2223, avg=1086.89, stdev=312.51 lat (msec): min=232, max=2223, avg=1087.10, stdev=312.50 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 634], 10.00th=[ 726], 20.00th=[ 844], | 30.00th=[ 911], 40.00th=[ 969], 50.00th=[ 1036], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1318], 90.00th=[ 1502], 95.00th=[ 1703], | 99.00th=[ 1955], 99.50th=[ 1989], 99.90th=[ 2165], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 128, per=25.24%, avg=59.31, stdev=27.50, samples=339 iops : min= 1, max= 32, avg=14.37, stdev= 6.93, samples=339 lat (msec) : 250=0.08%, 500=0.94%, 750=9.57%, 1000=33.71%, 2000=55.27% lat (msec) : >=2000=0.43% cpu : usr=0.04%, sys=0.17%, ctx=1566, 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=235KiB/s (241kB/s), 58.8KiB/s-58.9KiB/s (60.2kB/s-60.4kB/s), io=40.0MiB (41.9MB), run=173719-174125msec 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=146194: Sat Sep 5 16:41:16 2026 read: IOPS=10, BW=43.6KiB/s (44.7kB/s)(5048KiB/115679msec) slat (usec): min=2795, max=80464, avg=14864.11, stdev=9142.12 clat (msec): min=28, max=1089, avg=447.68, stdev=121.59 lat (msec): min=42, max=1102, avg=462.55, stdev=123.10 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 292], 10.00th=[ 317], 20.00th=[ 351], | 30.00th=[ 380], 40.00th=[ 405], 50.00th=[ 430], 60.00th=[ 460], | 70.00th=[ 493], 80.00th=[ 542], 90.00th=[ 600], 95.00th=[ 684], | 99.00th=[ 802], 99.50th=[ 860], 99.90th=[ 944], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 119, per=25.19%, avg=43.58, stdev=21.78, samples=227 iops : min= 1, max= 29, avg=10.38, stdev= 5.49, samples=227 write: IOPS=11, BW=44.9KiB/s (45.0kB/s)(5192KiB/115679msec); 0 zone resets slat (usec): min=29, max=18701, avg=285.50, stdev=1110.52 clat (msec): min=316, max=2020, avg=972.16, stdev=264.65 lat (msec): min=316, max=2020, avg=972.45, stdev=264.66 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 567], 10.00th=[ 634], 20.00th=[ 735], | 30.00th=[ 818], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1217], 90.00th=[ 1318], 95.00th=[ 1385], | 99.00th=[ 1653], 99.50th=[ 1770], 99.90th=[ 2005], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 111, per=24.71%, avg=44.48, stdev=19.21, samples=228 iops : min= 1, max= 27, avg=10.61, stdev= 4.82, samples=228 lat (msec) : 50=0.23%, 100=0.16%, 250=0.51%, 500=35.86%, 750=22.66% lat (msec) : 1000=18.36%, 2000=22.15%, >=2000=0.08% cpu : usr=0.08%, sys=0.61%, ctx=4833, 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=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=146195: Sat Sep 5 16:41:16 2026 read: IOPS=10, BW=42.0KiB/s (43.0kB/s)(4976KiB/115823msec) slat (usec): min=2826, max=83903, avg=15137.63, stdev=9203.93 clat (msec): min=8, max=1009, avg=448.03, stdev=123.68 lat (msec): min=16, max=1013, avg=463.18, stdev=125.00 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 292], 10.00th=[ 313], 20.00th=[ 347], | 30.00th=[ 380], 40.00th=[ 405], 50.00th=[ 435], 60.00th=[ 460], | 70.00th=[ 489], 80.00th=[ 542], 90.00th=[ 617], 95.00th=[ 676], | 99.00th=[ 810], 99.50th=[ 844], 99.90th=[ 953], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 112, per=24.68%, avg=42.70, stdev=20.73, samples=228 iops : min= 1, max= 28, avg=10.16, stdev= 5.21, samples=228 write: IOPS=11, BW=45.4KiB/s (46.5kB/s)(5264KiB/115823msec); 0 zone resets slat (usec): min=32, max=8411, avg=227.97, stdev=606.99 clat (msec): min=372, max=2044, avg=967.49, stdev=256.64 lat (msec): min=372, max=2044, avg=967.72, stdev=256.65 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 550], 10.00th=[ 642], 20.00th=[ 735], | 30.00th=[ 827], 40.00th=[ 902], 50.00th=[ 969], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1183], 90.00th=[ 1301], 95.00th=[ 1385], | 99.00th=[ 1569], 99.50th=[ 1620], 99.90th=[ 2005], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 103, per=25.20%, avg=45.37, stdev=18.30, samples=227 iops : min= 1, max= 25, avg=10.83, stdev= 4.58, samples=227 lat (msec) : 10=0.04%, 50=0.12%, 100=0.20%, 250=0.55%, 500=35.39% lat (msec) : 750=22.77%, 1000=18.12%, 2000=22.77%, >=2000=0.04% cpu : usr=0.08%, sys=0.59%, ctx=4512, majf=0, minf=16 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=146196: Sat Sep 5 16:41:16 2026 read: IOPS=10, BW=43.1KiB/s (44.1kB/s)(4984KiB/115677msec) slat (usec): min=35, max=61065, avg=14592.31, stdev=8571.31 clat (msec): min=14, max=1111, avg=450.98, stdev=126.91 lat (msec): min=26, max=1119, avg=465.57, stdev=128.36 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 296], 10.00th=[ 317], 20.00th=[ 351], | 30.00th=[ 380], 40.00th=[ 401], 50.00th=[ 430], 60.00th=[ 464], | 70.00th=[ 502], 80.00th=[ 550], 90.00th=[ 625], 95.00th=[ 684], | 99.00th=[ 793], 99.50th=[ 860], 99.90th=[ 1099], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 112, per=24.89%, avg=43.06, stdev=21.27, samples=227 iops : min= 1, max= 28, avg=10.26, stdev= 5.37, samples=227 write: IOPS=11, BW=45.4KiB/s (46.5kB/s)(5256KiB/115677msec); 0 zone resets slat (usec): min=34, max=14974, avg=263.47, stdev=978.22 clat (msec): min=212, max=2043, avg=965.94, stdev=270.53 lat (msec): min=212, max=2043, avg=966.21, stdev=270.56 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 550], 10.00th=[ 617], 20.00th=[ 726], | 30.00th=[ 810], 40.00th=[ 885], 50.00th=[ 953], 60.00th=[ 1045], | 70.00th=[ 1116], 80.00th=[ 1200], 90.00th=[ 1301], 95.00th=[ 1385], | 99.00th=[ 1586], 99.50th=[ 1703], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 111, per=24.86%, avg=44.76, stdev=20.39, samples=229 iops : min= 1, max= 27, avg=10.68, stdev= 5.11, samples=229 lat (msec) : 20=0.04%, 50=0.12%, 100=0.23%, 250=0.94%, 500=34.14% lat (msec) : 750=23.48%, 1000=17.85%, 2000=23.05%, >=2000=0.16% cpu : usr=0.09%, sys=0.60%, ctx=4671, 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=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=146197: Sat Sep 5 16:41:16 2026 read: IOPS=10, BW=43.7KiB/s (44.7kB/s)(5060KiB/115815msec) slat (usec): min=2576, max=61673, avg=14756.87, stdev=8486.42 clat (msec): min=21, max=913, avg=447.24, stdev=116.52 lat (msec): min=39, max=937, avg=462.01, stdev=118.14 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 296], 10.00th=[ 317], 20.00th=[ 351], | 30.00th=[ 384], 40.00th=[ 405], 50.00th=[ 435], 60.00th=[ 460], | 70.00th=[ 493], 80.00th=[ 535], 90.00th=[ 609], 95.00th=[ 667], | 99.00th=[ 751], 99.50th=[ 827], 99.90th=[ 877], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7, max= 96, per=25.39%, avg=43.92, stdev=19.76, samples=225 iops : min= 1, max= 24, avg=10.47, stdev= 4.99, samples=225 write: IOPS=11, BW=44.7KiB/s (45.8kB/s)(5180KiB/115815msec); 0 zone resets slat (usec): min=32, max=21981, avg=292.78, stdev=1032.70 clat (msec): min=160, max=2012, avg=976.63, stdev=265.30 lat (msec): min=160, max=2012, avg=976.93, stdev=265.29 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 567], 10.00th=[ 651], 20.00th=[ 743], | 30.00th=[ 818], 40.00th=[ 911], 50.00th=[ 969], 60.00th=[ 1036], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1318], 95.00th=[ 1418], | 99.00th=[ 1636], 99.50th=[ 1871], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 103, per=24.52%, avg=44.14, stdev=18.50, samples=228 iops : min= 1, max= 25, avg=10.52, stdev= 4.67, samples=228 lat (msec) : 50=0.08%, 100=0.16%, 250=0.51%, 500=35.66%, 750=23.63% lat (msec) : 1000=16.99%, 2000=22.85%, >=2000=0.12% cpu : usr=0.09%, sys=0.56%, ctx=4741, 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=173KiB/s (177kB/s), 42.0KiB/s-43.7KiB/s (43.0kB/s-44.7kB/s), io=19.6MiB (20.5MB), run=115677-115823msec WRITE: bw=180KiB/s (185kB/s), 44.7KiB/s-45.4KiB/s (45.8kB/s-46.5kB/s), io=20.4MiB (21.4MB), run=115677-115823msec 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=146217: Sat Sep 5 16:41:26 2026 read: IOPS=2, BW=80.0MiB/s (83.9MB/s)(40.0MiB/500msec) slat (nsec): min=52435k, max=52435k, avg=52435342.00, stdev= 0.00 clat (nsec): min=420788k, max=420788k, avg=420788159.00, stdev= 0.00 lat (nsec): min=473229k, max=473229k, avg=473229014.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 422], 50.00th=[ 422], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.61%, ctx=45, 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=80.0MiB/s (83.9MB/s), 80.0MiB/s-80.0MiB/s (83.9MB/s-83.9MB/s), io=40.0MiB (41.9MB), run=500-500msec 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