== sanity test 398c: run fio to test AIO ================= 04:43:54 (1787561034) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.722177 s, 58.1 MB/s osc.lustre-OST0000-osc-ffff99539331d800.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=144745: Mon Aug 24 04:46:51 2026 write: IOPS=15, BW=62.2KiB/s (63.7kB/s)(10.0MiB/164668msec); 0 zone resets slat (usec): min=23, max=21839, avg=263.00, stdev=1055.74 clat (msec): min=206, max=2356, avg=1028.26, stdev=318.38 lat (msec): min=212, max=2356, avg=1028.52, stdev=318.42 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 523], 10.00th=[ 659], 20.00th=[ 785], | 30.00th=[ 860], 40.00th=[ 936], 50.00th=[ 995], 60.00th=[ 1070], | 70.00th=[ 1167], 80.00th=[ 1301], 90.00th=[ 1452], 95.00th=[ 1569], | 99.00th=[ 1787], 99.50th=[ 2022], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 234, per=25.24%, avg=62.61, stdev=32.25, samples=321 iops : min= 1, max= 58, avg=15.13, stdev= 8.07, samples=321 lat (msec) : 250=1.25%, 500=2.58%, 750=12.62%, 1000=34.73%, 2000=48.28% lat (msec) : >=2000=0.55% cpu : usr=0.06%, sys=0.24%, ctx=1696, 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=144746: Mon Aug 24 04:46:51 2026 write: IOPS=15, BW=62.1KiB/s (63.6kB/s)(10.0MiB/164912msec); 0 zone resets slat (usec): min=22, max=17779, avg=292.26, stdev=1040.56 clat (msec): min=69, max=2433, avg=1029.13, stdev=321.54 lat (msec): min=70, max=2433, avg=1029.43, stdev=321.55 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 542], 10.00th=[ 684], 20.00th=[ 776], | 30.00th=[ 860], 40.00th=[ 927], 50.00th=[ 995], 60.00th=[ 1070], | 70.00th=[ 1150], 80.00th=[ 1301], 90.00th=[ 1469], 95.00th=[ 1586], | 99.00th=[ 1821], 99.50th=[ 2072], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 207, per=24.79%, avg=61.49, stdev=27.72, samples=327 iops : min= 1, max= 51, avg=14.85, stdev= 6.94, samples=327 lat (msec) : 100=0.04%, 250=0.94%, 500=2.70%, 750=12.85%, 1000=34.02% lat (msec) : 2000=48.87%, >=2000=0.59% cpu : usr=0.07%, sys=0.25%, ctx=2139, 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=144747: Mon Aug 24 04:46:51 2026 write: IOPS=15, BW=62.1KiB/s (63.6kB/s)(10.0MiB/164985msec); 0 zone resets slat (usec): min=22, max=23084, avg=280.22, stdev=1171.09 clat (msec): min=158, max=2433, avg=1029.51, stdev=315.61 lat (msec): min=159, max=2433, avg=1029.79, stdev=315.61 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 567], 10.00th=[ 676], 20.00th=[ 785], | 30.00th=[ 844], 40.00th=[ 927], 50.00th=[ 995], 60.00th=[ 1070], | 70.00th=[ 1167], 80.00th=[ 1284], 90.00th=[ 1469], 95.00th=[ 1586], | 99.00th=[ 1754], 99.50th=[ 2056], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 255, per=25.42%, avg=63.05, stdev=31.85, samples=319 iops : min= 1, max= 63, avg=15.24, stdev= 7.96, samples=319 lat (msec) : 250=0.66%, 500=2.46%, 750=13.09%, 1000=34.69%, 2000=48.59% lat (msec) : >=2000=0.51% cpu : usr=0.05%, sys=0.23%, ctx=1669, 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=144748: Mon Aug 24 04:46:51 2026 write: IOPS=15, BW=62.1KiB/s (63.6kB/s)(10.0MiB/164986msec); 0 zone resets slat (usec): min=22, max=27061, avg=262.75, stdev=1123.79 clat (msec): min=228, max=2393, avg=1029.03, stdev=325.64 lat (msec): min=228, max=2393, avg=1029.29, stdev=325.65 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 542], 10.00th=[ 676], 20.00th=[ 776], | 30.00th=[ 852], 40.00th=[ 927], 50.00th=[ 995], 60.00th=[ 1053], | 70.00th=[ 1167], 80.00th=[ 1301], 90.00th=[ 1469], 95.00th=[ 1620], | 99.00th=[ 1854], 99.50th=[ 1989], 99.90th=[ 2299], 99.95th=[ 2366], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 254, per=25.34%, avg=62.85, stdev=31.39, samples=320 iops : min= 1, max= 63, avg=15.18, stdev= 7.87, samples=320 lat (msec) : 250=1.88%, 500=1.91%, 750=13.83%, 1000=33.63%, 2000=48.32% lat (msec) : >=2000=0.43% cpu : usr=0.05%, sys=0.25%, ctx=1642, 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=248KiB/s (254kB/s), 62.1KiB/s-62.2KiB/s (63.6kB/s-63.7kB/s), io=40.0MiB (41.9MB), run=164668-164986msec 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=144783: Mon Aug 24 04:49:04 2026 read: IOPS=10, BW=41.2KiB/s (42.2kB/s)(5048KiB/122442msec) slat (usec): min=2911, max=79824, avg=16511.90, stdev=9280.45 clat (msec): min=22, max=1119, avg=473.30, stdev=152.86 lat (msec): min=33, max=1153, avg=489.82, stdev=155.24 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 275], 10.00th=[ 305], 20.00th=[ 347], | 30.00th=[ 380], 40.00th=[ 414], 50.00th=[ 447], 60.00th=[ 489], | 70.00th=[ 535], 80.00th=[ 592], 90.00th=[ 676], 95.00th=[ 751], | 99.00th=[ 919], 99.50th=[ 969], 99.90th=[ 1099], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 119, per=25.58%, avg=41.69, stdev=20.17, samples=237 iops : min= 1, max= 29, avg= 9.89, stdev= 5.07, samples=237 write: IOPS=10, BW=42.4KiB/s (43.4kB/s)(5192KiB/122442msec); 0 zone resets slat (usec): min=29, max=19157, avg=344.61, stdev=1163.97 clat (msec): min=338, max=1922, avg=1028.58, stdev=309.46 lat (msec): min=338, max=1922, avg=1028.93, stdev=309.46 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 550], 10.00th=[ 642], 20.00th=[ 760], | 30.00th=[ 844], 40.00th=[ 919], 50.00th=[ 1003], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1301], 90.00th=[ 1452], 95.00th=[ 1586], | 99.00th=[ 1804], 99.50th=[ 1838], 99.90th=[ 1888], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 7, max= 103, per=24.61%, avg=41.83, stdev=20.13, samples=242 iops : min= 1, max= 25, avg= 9.92, stdev= 5.07, samples=242 lat (msec) : 50=0.04%, 100=0.12%, 250=1.33%, 500=31.02%, 750=23.75% lat (msec) : 1000=18.05%, 2000=25.70% cpu : usr=0.10%, sys=0.69%, ctx=4358, 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=144784: Mon Aug 24 04:49:04 2026 read: IOPS=10, BW=40.6KiB/s (41.6kB/s)(4976KiB/122512msec) slat (usec): min=2595, max=63975, avg=15670.29, stdev=9250.04 clat (msec): min=22, max=1150, avg=471.53, stdev=155.23 lat (msec): min=25, max=1192, avg=487.21, stdev=157.68 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 275], 10.00th=[ 305], 20.00th=[ 347], | 30.00th=[ 380], 40.00th=[ 409], 50.00th=[ 443], 60.00th=[ 481], | 70.00th=[ 535], 80.00th=[ 592], 90.00th=[ 684], 95.00th=[ 768], | 99.00th=[ 927], 99.50th=[ 969], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 120, per=25.12%, avg=40.94, stdev=20.80, samples=237 iops : min= 1, max= 30, avg= 9.70, stdev= 5.25, samples=237 write: IOPS=10, BW=42.0KiB/s (43.0kB/s)(5264KiB/122512msec); 0 zone resets slat (usec): min=25, max=19230, avg=340.83, stdev=1140.96 clat (msec): min=325, max=2012, avg=1025.63, stdev=308.91 lat (msec): min=325, max=2016, avg=1025.98, stdev=308.92 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 550], 10.00th=[ 651], 20.00th=[ 751], | 30.00th=[ 852], 40.00th=[ 919], 50.00th=[ 995], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1284], 90.00th=[ 1469], 95.00th=[ 1603], | 99.00th=[ 1787], 99.50th=[ 1854], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 111, per=25.25%, avg=42.93, stdev=20.55, samples=240 iops : min= 1, max= 27, avg=10.19, stdev= 5.18, samples=240 lat (msec) : 50=0.12%, 100=0.12%, 250=1.21%, 500=30.94%, 750=23.32% lat (msec) : 1000=18.91%, 2000=25.31%, >=2000=0.08% cpu : usr=0.12%, sys=0.60%, ctx=4012, 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=144785: Mon Aug 24 04:49:04 2026 read: IOPS=10, BW=40.7KiB/s (41.7kB/s)(4984KiB/122516msec) slat (usec): min=49, max=79520, avg=16113.52, stdev=9288.51 clat (msec): min=22, max=1131, avg=473.64, stdev=153.24 lat (msec): min=38, max=1138, avg=489.76, stdev=155.90 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 268], 10.00th=[ 305], 20.00th=[ 347], | 30.00th=[ 380], 40.00th=[ 414], 50.00th=[ 447], 60.00th=[ 493], | 70.00th=[ 535], 80.00th=[ 600], 90.00th=[ 684], 95.00th=[ 768], | 99.00th=[ 885], 99.50th=[ 936], 99.90th=[ 1116], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 96, per=25.17%, avg=41.03, stdev=18.05, samples=238 iops : min= 1, max= 24, avg= 9.72, stdev= 4.59, samples=238 write: IOPS=10, BW=42.9KiB/s (43.9kB/s)(5256KiB/122516msec); 0 zone resets slat (usec): min=23, max=17392, avg=362.47, stdev=1140.05 clat (msec): min=179, max=2030, avg=1025.61, stdev=309.71 lat (msec): min=179, max=2030, avg=1025.97, stdev=309.72 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 567], 10.00th=[ 634], 20.00th=[ 751], | 30.00th=[ 852], 40.00th=[ 927], 50.00th=[ 1003], 60.00th=[ 1083], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1469], 95.00th=[ 1603], | 99.00th=[ 1787], 99.50th=[ 1838], 99.90th=[ 1955], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 119, per=24.97%, avg=42.45, stdev=20.27, samples=241 iops : min= 1, max= 29, avg=10.07, stdev= 5.10, samples=241 lat (msec) : 50=0.12%, 100=0.12%, 250=1.64%, 500=29.53%, 750=24.18% lat (msec) : 1000=18.63%, 2000=25.74%, >=2000=0.04% cpu : usr=0.13%, sys=0.63%, ctx=4028, 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=144786: Mon Aug 24 04:49:04 2026 read: IOPS=10, BW=41.5KiB/s (42.5kB/s)(5060KiB/122018msec) slat (usec): min=3219, max=73724, avg=16351.21, stdev=9415.91 clat (msec): min=9, max=1099, avg=463.77, stdev=151.39 lat (msec): min=14, max=1151, avg=480.13, stdev=153.86 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 268], 10.00th=[ 305], 20.00th=[ 342], | 30.00th=[ 376], 40.00th=[ 405], 50.00th=[ 443], 60.00th=[ 481], | 70.00th=[ 527], 80.00th=[ 584], 90.00th=[ 667], 95.00th=[ 751], | 99.00th=[ 902], 99.50th=[ 936], 99.90th=[ 1011], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 111, per=25.57%, avg=41.67, stdev=20.65, samples=238 iops : min= 1, max= 27, avg= 9.88, stdev= 5.22, samples=238 write: IOPS=10, BW=42.5KiB/s (43.5kB/s)(5180KiB/122018msec); 0 zone resets slat (usec): min=26, max=16776, avg=360.87, stdev=1218.92 clat (msec): min=311, max=2070, avg=1033.97, stdev=311.50 lat (msec): min=311, max=2070, avg=1034.34, stdev=311.50 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 558], 10.00th=[ 659], 20.00th=[ 768], | 30.00th=[ 860], 40.00th=[ 919], 50.00th=[ 986], 60.00th=[ 1083], | 70.00th=[ 1183], 80.00th=[ 1301], 90.00th=[ 1469], 95.00th=[ 1586], | 99.00th=[ 1854], 99.50th=[ 1921], 99.90th=[ 2072], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 7, max= 96, per=25.04%, avg=42.57, stdev=18.54, samples=237 iops : min= 1, max= 24, avg=10.11, stdev= 4.70, samples=237 lat (msec) : 10=0.04%, 50=0.04%, 100=0.35%, 250=1.41%, 500=31.84% lat (msec) : 750=22.23%, 1000=19.41%, 2000=24.57%, >=2000=0.12% cpu : usr=0.12%, sys=0.67%, ctx=4296, 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=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=164KiB/s (168kB/s), 40.6KiB/s-41.5KiB/s (41.6kB/s-42.5kB/s), io=19.6MiB (20.5MB), run=122018-122516msec WRITE: bw=171KiB/s (175kB/s), 42.4KiB/s-42.0KiB/s (43.4kB/s-43.0kB/s), io=20.4MiB (21.4MB), run=122018-122516msec 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=144808: Mon Aug 24 04:49:15 2026 read: IOPS=1, BW=63.3MiB/s (66.4MB/s)(40.0MiB/632msec) slat (nsec): min=39621k, max=39621k, avg=39620595.00, stdev= 0.00 clat (nsec): min=569793k, max=569793k, avg=569792563.00, stdev= 0.00 lat (nsec): min=609418k, max=609418k, avg=609418156.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.22%, ctx=6, 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=63.3MiB/s (66.4MB/s), 63.3MiB/s-63.3MiB/s (66.4MB/s-66.4MB/s), io=40.0MiB (41.9MB), run=632-632msec 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