== sanity test 398c: run fio to test AIO ================= 07:25:13 (1775129113) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.413324 s, 101 MB/s osc.lustre-OST0000-osc-ffff8b5c511ab800.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=148020: Thu Apr 2 07:28:15 2026 write: IOPS=14, BW=59.3KiB/s (60.7kB/s)(10.0MiB/172685msec); 0 zone resets slat (usec): min=37, max=28304, avg=319.96, stdev=1056.52 clat (msec): min=135, max=2216, avg=1078.30, stdev=285.24 lat (msec): min=135, max=2216, avg=1078.62, stdev=285.26 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 642], 10.00th=[ 751], 20.00th=[ 852], | 30.00th=[ 919], 40.00th=[ 1003], 50.00th=[ 1070], 60.00th=[ 1133], | 70.00th=[ 1200], 80.00th=[ 1284], 90.00th=[ 1435], 95.00th=[ 1569], | 99.00th=[ 1854], 99.50th=[ 1972], 99.90th=[ 2089], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 199, per=24.93%, avg=58.84, stdev=27.38, samples=342 iops : min= 1, max= 49, avg=14.23, stdev= 6.84, samples=342 lat (msec) : 250=0.27%, 500=1.25%, 750=8.36%, 1000=30.27%, 2000=59.53% lat (msec) : >=2000=0.31% cpu : usr=0.04%, sys=0.26%, ctx=2003, 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=148021: Thu Apr 2 07:28:16 2026 write: IOPS=14, BW=59.2KiB/s (60.6kB/s)(10.0MiB/172945msec); 0 zone resets slat (usec): min=37, max=14771, avg=299.03, stdev=870.08 clat (msec): min=380, max=2119, avg=1079.15, stdev=276.48 lat (msec): min=380, max=2119, avg=1079.45, stdev=276.52 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 676], 10.00th=[ 760], 20.00th=[ 852], | 30.00th=[ 927], 40.00th=[ 1003], 50.00th=[ 1083], 60.00th=[ 1133], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1418], 95.00th=[ 1586], | 99.00th=[ 1838], 99.50th=[ 1921], 99.90th=[ 2039], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 7, max= 255, per=25.16%, avg=59.39, stdev=29.20, samples=339 iops : min= 1, max= 63, avg=14.36, stdev= 7.30, samples=339 lat (msec) : 500=1.29%, 750=8.24%, 1000=29.41%, 2000=60.94%, >=2000=0.12% cpu : usr=0.03%, sys=0.27%, ctx=1983, 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=148022: Thu Apr 2 07:28:16 2026 write: IOPS=14, BW=59.2KiB/s (60.6kB/s)(10.0MiB/172947msec); 0 zone resets slat (usec): min=36, max=17976, avg=296.57, stdev=931.72 clat (msec): min=405, max=2184, avg=1079.59, stdev=274.34 lat (msec): min=405, max=2184, avg=1079.89, stdev=274.41 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 642], 10.00th=[ 760], 20.00th=[ 860], | 30.00th=[ 936], 40.00th=[ 1011], 50.00th=[ 1070], 60.00th=[ 1133], | 70.00th=[ 1200], 80.00th=[ 1267], 90.00th=[ 1418], 95.00th=[ 1586], | 99.00th=[ 1821], 99.50th=[ 1921], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 255, per=25.08%, avg=59.19, stdev=27.62, samples=340 iops : min= 1, max= 63, avg=14.31, stdev= 6.92, samples=340 lat (msec) : 500=1.37%, 750=8.05%, 1000=28.55%, 2000=61.80%, >=2000=0.23% cpu : usr=0.04%, sys=0.25%, ctx=1812, 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=148023: Thu Apr 2 07:28:16 2026 write: IOPS=14, BW=59.2KiB/s (60.6kB/s)(10.0MiB/172996msec); 0 zone resets slat (usec): min=49, max=13539, avg=309.41, stdev=883.82 clat (msec): min=366, max=2146, avg=1079.53, stdev=270.00 lat (msec): min=366, max=2146, avg=1079.84, stdev=270.03 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 651], 10.00th=[ 760], 20.00th=[ 852], | 30.00th=[ 927], 40.00th=[ 1011], 50.00th=[ 1083], 60.00th=[ 1133], | 70.00th=[ 1200], 80.00th=[ 1284], 90.00th=[ 1418], 95.00th=[ 1569], | 99.00th=[ 1804], 99.50th=[ 1871], 99.90th=[ 2005], 99.95th=[ 2022], | 99.99th=[ 2140] bw ( KiB/s): min= 7, max= 128, per=25.08%, avg=59.19, stdev=27.76, samples=340 iops : min= 1, max= 32, avg=14.32, stdev= 6.96, samples=340 lat (msec) : 500=1.33%, 750=7.30%, 1000=30.35%, 2000=60.86%, >=2000=0.16% cpu : usr=0.04%, sys=0.28%, ctx=2082, 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=237KiB/s (242kB/s), 59.2KiB/s-59.3KiB/s (60.6kB/s-60.7kB/s), io=40.0MiB (41.9MB), run=172685-172996msec 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=148057: Thu Apr 2 07:30:32 2026 read: IOPS=9, BW=39.2KiB/s (40.1kB/s)(5048KiB/128847msec) slat (usec): min=89, max=65919, avg=16060.88, stdev=8129.67 clat (msec): min=15, max=1014, avg=501.53, stdev=138.68 lat (msec): min=18, max=1035, avg=517.59, stdev=140.26 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 313], 10.00th=[ 342], 20.00th=[ 397], | 30.00th=[ 430], 40.00th=[ 464], 50.00th=[ 493], 60.00th=[ 527], | 70.00th=[ 558], 80.00th=[ 600], 90.00th=[ 676], 95.00th=[ 743], | 99.00th=[ 911], 99.50th=[ 927], 99.90th=[ 953], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 119, per=25.75%, avg=39.65, stdev=20.48, samples=249 iops : min= 1, max= 29, avg= 9.37, stdev= 5.14, samples=249 write: IOPS=10, BW=40.3KiB/s (41.3kB/s)(5192KiB/128847msec); 0 zone resets slat (usec): min=55, max=17818, avg=517.34, stdev=1324.84 clat (msec): min=123, max=2277, avg=1083.54, stdev=303.70 lat (msec): min=124, max=2277, avg=1084.06, stdev=303.73 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 625], 10.00th=[ 709], 20.00th=[ 835], | 30.00th=[ 936], 40.00th=[ 1011], 50.00th=[ 1083], 60.00th=[ 1150], | 70.00th=[ 1217], 80.00th=[ 1301], 90.00th=[ 1452], 95.00th=[ 1620], | 99.00th=[ 1905], 99.50th=[ 2089], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 103, per=24.91%, avg=40.10, stdev=18.81, samples=252 iops : min= 1, max= 25, avg= 9.48, stdev= 4.75, samples=252 lat (msec) : 20=0.08%, 50=0.23%, 100=0.16%, 250=0.70%, 500=25.62% lat (msec) : 750=26.60%, 1000=15.31%, 2000=30.94%, >=2000=0.35% cpu : usr=0.10%, sys=0.69%, ctx=4961, 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=148058: Thu Apr 2 07:30:32 2026 read: IOPS=9, BW=38.4KiB/s (39.3kB/s)(4976KiB/129490msec) slat (usec): min=3522, max=52027, avg=16115.47, stdev=8009.65 clat (msec): min=40, max=988, avg=510.22, stdev=140.49 lat (msec): min=67, max=1010, avg=526.34, stdev=142.03 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 317], 10.00th=[ 355], 20.00th=[ 401], | 30.00th=[ 430], 40.00th=[ 464], 50.00th=[ 493], 60.00th=[ 527], | 70.00th=[ 567], 80.00th=[ 609], 90.00th=[ 693], 95.00th=[ 776], | 99.00th=[ 927], 99.50th=[ 953], 99.90th=[ 969], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 111, per=24.90%, avg=38.35, stdev=18.76, samples=253 iops : min= 1, max= 27, avg= 9.04, stdev= 4.70, samples=253 write: IOPS=10, BW=40.7KiB/s (41.6kB/s)(5264KiB/129490msec); 0 zone resets slat (usec): min=58, max=22166, avg=418.57, stdev=1049.03 clat (msec): min=363, max=2278, avg=1073.96, stdev=287.11 lat (msec): min=363, max=2279, avg=1074.38, stdev=287.15 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 617], 10.00th=[ 718], 20.00th=[ 827], | 30.00th=[ 919], 40.00th=[ 1011], 50.00th=[ 1083], 60.00th=[ 1133], | 70.00th=[ 1200], 80.00th=[ 1284], 90.00th=[ 1418], 95.00th=[ 1569], | 99.00th=[ 1838], 99.50th=[ 1938], 99.90th=[ 2022], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 96, per=25.34%, avg=40.80, stdev=19.82, samples=252 iops : min= 1, max= 24, avg= 9.66, stdev= 4.99, samples=252 lat (msec) : 50=0.04%, 100=0.20%, 250=0.43%, 500=25.90%, 750=25.47% lat (msec) : 1000=16.48%, 2000=31.33%, >=2000=0.16% cpu : usr=0.10%, sys=0.65%, ctx=4636, 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=148059: Thu Apr 2 07:30:32 2026 read: IOPS=9, BW=38.5KiB/s (39.4kB/s)(4984KiB/129554msec) slat (usec): min=3887, max=48778, avg=16146.46, stdev=7767.05 clat (msec): min=28, max=1030, avg=507.38, stdev=135.43 lat (msec): min=44, max=1057, avg=523.53, stdev=136.42 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 317], 10.00th=[ 359], 20.00th=[ 401], | 30.00th=[ 435], 40.00th=[ 468], 50.00th=[ 498], 60.00th=[ 527], | 70.00th=[ 558], 80.00th=[ 600], 90.00th=[ 684], 95.00th=[ 768], | 99.00th=[ 885], 99.50th=[ 927], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 111, per=25.12%, avg=38.69, stdev=18.57, samples=252 iops : min= 1, max= 27, avg= 9.13, stdev= 4.66, samples=252 write: IOPS=10, BW=40.6KiB/s (41.5kB/s)(5256KiB/129554msec); 0 zone resets slat (usec): min=53, max=22812, avg=467.66, stdev=1300.36 clat (msec): min=360, max=2326, avg=1077.59, stdev=293.32 lat (msec): min=360, max=2326, avg=1078.06, stdev=293.39 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 617], 10.00th=[ 718], 20.00th=[ 835], | 30.00th=[ 919], 40.00th=[ 1003], 50.00th=[ 1070], 60.00th=[ 1133], | 70.00th=[ 1200], 80.00th=[ 1301], 90.00th=[ 1452], 95.00th=[ 1586], | 99.00th=[ 1854], 99.50th=[ 2022], 99.90th=[ 2265], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 102, per=25.02%, avg=40.28, stdev=17.64, samples=254 iops : min= 1, max= 25, avg= 9.53, stdev= 4.43, samples=254 lat (msec) : 50=0.16%, 100=0.20%, 250=0.20%, 500=25.27%, 750=26.76% lat (msec) : 1000=16.33%, 2000=30.82%, >=2000=0.27% cpu : usr=0.09%, sys=0.69%, ctx=4908, 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=148060: Thu Apr 2 07:30:32 2026 read: IOPS=9, BW=39.1KiB/s (39.0kB/s)(5060KiB/129548msec) slat (usec): min=2924, max=54056, avg=16168.86, stdev=8063.63 clat (msec): min=52, max=1029, avg=504.88, stdev=137.10 lat (msec): min=61, max=1047, avg=521.06, stdev=138.27 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 313], 10.00th=[ 351], 20.00th=[ 397], | 30.00th=[ 435], 40.00th=[ 468], 50.00th=[ 493], 60.00th=[ 523], | 70.00th=[ 558], 80.00th=[ 600], 90.00th=[ 676], 95.00th=[ 760], | 99.00th=[ 911], 99.50th=[ 944], 99.90th=[ 1020], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 119, per=25.33%, avg=39.00, stdev=18.66, samples=253 iops : min= 1, max= 29, avg= 9.21, stdev= 4.69, samples=253 write: IOPS=9, BW=39.0KiB/s (40.9kB/s)(5180KiB/129548msec); 0 zone resets slat (usec): min=53, max=18025, avg=454.61, stdev=1163.70 clat (msec): min=393, max=2257, avg=1088.36, stdev=283.59 lat (msec): min=393, max=2257, avg=1088.82, stdev=283.65 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 625], 10.00th=[ 735], 20.00th=[ 852], | 30.00th=[ 944], 40.00th=[ 1020], 50.00th=[ 1083], 60.00th=[ 1150], | 70.00th=[ 1217], 80.00th=[ 1301], 90.00th=[ 1452], 95.00th=[ 1586], | 99.00th=[ 1838], 99.50th=[ 1921], 99.90th=[ 2022], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 104, per=24.72%, avg=39.80, stdev=18.88, samples=254 iops : min= 1, max= 26, avg= 9.41, stdev= 4.80, samples=254 lat (msec) : 100=0.23%, 250=0.43%, 500=25.78%, 750=25.62%, 1000=16.41% lat (msec) : 2000=31.45%, >=2000=0.08% cpu : usr=0.10%, sys=0.66%, ctx=4520, 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=155KiB/s (159kB/s), 38.4KiB/s-39.2KiB/s (39.3kB/s-40.1kB/s), io=19.6MiB (20.5MB), run=128847-129554msec WRITE: bw=161KiB/s (165kB/s), 39.0KiB/s-40.7KiB/s (40.9kB/s-41.6kB/s), io=20.4MiB (21.4MB), run=128847-129554msec 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=148083: Thu Apr 2 07:30:43 2026 read: IOPS=1, BW=58.1MiB/s (60.9MB/s)(40.0MiB/689msec) slat (nsec): min=17420k, max=17420k, avg=17420295.00, stdev= 0.00 clat (nsec): min=647862k, max=647862k, avg=647862325.00, stdev= 0.00 lat (nsec): min=665288k, max=665288k, avg=665287757.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.89%, ctx=5, 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=58.1MiB/s (60.9MB/s), 58.1MiB/s-58.1MiB/s (60.9MB/s-60.9MB/s), io=40.0MiB (41.9MB), run=689-689msec 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