== sanity test 398c: run fio to test AIO ================= 06:18:47 (1788517127) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.65781 s, 63.8 MB/s osc.lustre-OST0000-osc-ffff9ce0c38c9800.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=145172: Fri Sep 4 06:22:14 2026 write: IOPS=13, BW=52.5KiB/s (53.7kB/s)(10.0MiB/195158msec); 0 zone resets slat (usec): min=29, max=33103, avg=366.59, stdev=1544.04 clat (msec): min=131, max=2596, avg=1218.67, stdev=375.09 lat (msec): min=132, max=2596, avg=1219.03, stdev=375.13 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 684], 10.00th=[ 793], 20.00th=[ 919], | 30.00th=[ 1003], 40.00th=[ 1099], 50.00th=[ 1183], 60.00th=[ 1301], | 70.00th=[ 1385], 80.00th=[ 1519], 90.00th=[ 1703], 95.00th=[ 1888], | 99.00th=[ 2198], 99.50th=[ 2366], 99.90th=[ 2567], 99.95th=[ 2567], | 99.99th=[ 2601] bw ( KiB/s): min= 7, max= 226, per=25.86%, avg=54.04, stdev=31.12, samples=371 iops : min= 1, max= 56, avg=12.95, stdev= 7.80, samples=371 lat (msec) : 250=0.62%, 500=1.91%, 750=5.35%, 1000=21.33%, 2000=67.97% lat (msec) : >=2000=2.81% cpu : usr=0.06%, sys=0.23%, ctx=1756, 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=145173: Fri Sep 4 06:22:14 2026 write: IOPS=13, BW=52.4KiB/s (53.7kB/s)(10.0MiB/195426msec); 0 zone resets slat (usec): min=30, max=18229, avg=294.82, stdev=1032.68 clat (msec): min=117, max=2657, avg=1219.87, stdev=377.29 lat (msec): min=118, max=2657, avg=1220.17, stdev=377.34 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 726], 10.00th=[ 802], 20.00th=[ 919], | 30.00th=[ 1011], 40.00th=[ 1099], 50.00th=[ 1167], 60.00th=[ 1284], | 70.00th=[ 1385], 80.00th=[ 1519], 90.00th=[ 1720], 95.00th=[ 1888], | 99.00th=[ 2265], 99.50th=[ 2400], 99.90th=[ 2534], 99.95th=[ 2534], | 99.99th=[ 2668] bw ( KiB/s): min= 7, max= 254, per=26.10%, avg=54.54, stdev=29.02, samples=368 iops : min= 1, max= 63, avg=13.09, stdev= 7.26, samples=368 lat (msec) : 250=0.62%, 500=1.88%, 750=4.49%, 1000=21.21%, 2000=68.83% lat (msec) : >=2000=2.97% cpu : usr=0.04%, sys=0.24%, ctx=1732, 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=145174: Fri Sep 4 06:22:14 2026 write: IOPS=13, BW=52.3KiB/s (53.6kB/s)(10.0MiB/195613msec); 0 zone resets slat (usec): min=28, max=41184, avg=358.41, stdev=1536.96 clat (msec): min=299, max=2544, avg=1221.04, stdev=371.85 lat (msec): min=299, max=2544, avg=1221.40, stdev=371.88 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 718], 10.00th=[ 802], 20.00th=[ 927], | 30.00th=[ 1011], 40.00th=[ 1099], 50.00th=[ 1167], 60.00th=[ 1267], | 70.00th=[ 1385], 80.00th=[ 1519], 90.00th=[ 1737], 95.00th=[ 1921], | 99.00th=[ 2198], 99.50th=[ 2400], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 128, per=25.60%, avg=53.50, stdev=28.59, samples=375 iops : min= 1, max= 32, avg=12.84, stdev= 7.17, samples=375 lat (msec) : 500=3.16%, 750=3.16%, 1000=21.80%, 2000=68.98%, >=2000=2.89% cpu : usr=0.05%, sys=0.22%, ctx=1657, 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=145175: Fri Sep 4 06:22:14 2026 write: IOPS=13, BW=52.3KiB/s (53.6kB/s)(10.0MiB/195613msec); 0 zone resets slat (usec): min=27, max=40206, avg=322.52, stdev=1366.06 clat (msec): min=95, max=2657, avg=1221.17, stdev=373.85 lat (msec): min=95, max=2657, avg=1221.50, stdev=373.86 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 709], 10.00th=[ 818], 20.00th=[ 919], | 30.00th=[ 1011], 40.00th=[ 1083], 50.00th=[ 1167], 60.00th=[ 1267], | 70.00th=[ 1385], 80.00th=[ 1536], 90.00th=[ 1720], 95.00th=[ 1888], | 99.00th=[ 2198], 99.50th=[ 2333], 99.90th=[ 2567], 99.95th=[ 2601], | 99.99th=[ 2668] bw ( KiB/s): min= 7, max= 175, per=25.74%, avg=53.80, stdev=31.46, samples=373 iops : min= 1, max= 43, avg=12.91, stdev= 7.88, samples=373 lat (msec) : 100=0.04%, 250=0.35%, 500=1.95%, 750=4.02%, 1000=21.80% lat (msec) : 2000=68.59%, >=2000=3.24% cpu : usr=0.04%, sys=0.24%, ctx=1648, 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=209KiB/s (214kB/s), 52.3KiB/s-52.5KiB/s (53.6kB/s-53.7kB/s), io=40.0MiB (41.9MB), run=195158-195613msec 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=145212: Fri Sep 4 06:24:26 2026 read: IOPS=10, BW=40.3KiB/s (41.2kB/s)(5048KiB/125391msec) slat (usec): min=3499, max=82223, avg=16950.74, stdev=10194.01 clat (msec): min=63, max=1001, avg=485.39, stdev=141.18 lat (msec): min=73, max=1049, avg=502.35, stdev=144.34 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 313], 10.00th=[ 342], 20.00th=[ 376], | 30.00th=[ 401], 40.00th=[ 430], 50.00th=[ 456], 60.00th=[ 489], | 70.00th=[ 531], 80.00th=[ 575], 90.00th=[ 684], 95.00th=[ 793], | 99.00th=[ 894], 99.50th=[ 978], 99.90th=[ 995], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7, max= 103, per=25.48%, avg=40.51, stdev=18.57, samples=243 iops : min= 1, max= 25, avg= 9.55, stdev= 4.69, samples=243 write: IOPS=10, BW=41.4KiB/s (42.4kB/s)(5192KiB/125391msec); 0 zone resets slat (usec): min=33, max=19190, avg=387.05, stdev=1170.50 clat (msec): min=390, max=2493, avg=1053.73, stdev=330.74 lat (msec): min=391, max=2493, avg=1054.11, stdev=330.76 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 625], 10.00th=[ 693], 20.00th=[ 785], | 30.00th=[ 852], 40.00th=[ 936], 50.00th=[ 1011], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1267], 90.00th=[ 1485], 95.00th=[ 1670], | 99.00th=[ 2198], 99.50th=[ 2265], 99.90th=[ 2366], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 96, per=24.69%, avg=40.98, stdev=19.92, samples=247 iops : min= 1, max= 24, avg= 9.67, stdev= 4.99, samples=247 lat (msec) : 100=0.16%, 250=0.23%, 500=31.37%, 750=22.58%, 1000=19.61% lat (msec) : 2000=25.16%, >=2000=0.90% cpu : usr=0.10%, sys=0.70%, ctx=4052, 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=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=145213: Fri Sep 4 06:24:26 2026 read: IOPS=9, BW=39.6KiB/s (40.6kB/s)(4976KiB/125647msec) slat (usec): min=3654, max=86201, avg=17187.50, stdev=10317.81 clat (msec): min=38, max=1000, avg=481.72, stdev=138.82 lat (msec): min=57, max=1045, avg=498.92, stdev=141.48 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 309], 10.00th=[ 334], 20.00th=[ 372], | 30.00th=[ 393], 40.00th=[ 426], 50.00th=[ 456], 60.00th=[ 493], | 70.00th=[ 531], 80.00th=[ 584], 90.00th=[ 676], 95.00th=[ 760], | 99.00th=[ 885], 99.50th=[ 919], 99.90th=[ 995], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7, max= 104, per=24.82%, avg=39.46, stdev=20.56, samples=245 iops : min= 1, max= 26, avg= 9.29, stdev= 5.18, samples=245 write: IOPS=10, BW=41.9KiB/s (42.9kB/s)(5264KiB/125647msec); 0 zone resets slat (usec): min=34, max=13176, avg=347.31, stdev=966.44 clat (msec): min=227, max=2481, avg=1053.58, stdev=330.16 lat (msec): min=228, max=2482, avg=1053.93, stdev=330.19 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 584], 10.00th=[ 676], 20.00th=[ 793], | 30.00th=[ 877], 40.00th=[ 953], 50.00th=[ 1011], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1250], 90.00th=[ 1485], 95.00th=[ 1703], | 99.00th=[ 2056], 99.50th=[ 2265], 99.90th=[ 2433], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 119, per=25.26%, avg=41.94, stdev=20.97, samples=245 iops : min= 1, max= 29, avg= 9.91, stdev= 5.26, samples=245 lat (msec) : 50=0.04%, 100=0.12%, 250=0.20%, 500=30.90%, 750=22.38% lat (msec) : 1000=19.45%, 2000=26.02%, >=2000=0.90% cpu : usr=0.13%, sys=0.70%, ctx=4067, 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=145214: Fri Sep 4 06:24:26 2026 read: IOPS=9, BW=39.7KiB/s (40.7kB/s)(4984KiB/125537msec) slat (msec): min=3, max=376, avg=17.40, stdev=14.25 clat (msec): min=19, max=1063, avg=485.56, stdev=144.34 lat (msec): min=35, max=1073, avg=502.97, stdev=146.33 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 313], 10.00th=[ 347], 20.00th=[ 376], | 30.00th=[ 405], 40.00th=[ 430], 50.00th=[ 460], 60.00th=[ 489], | 70.00th=[ 527], 80.00th=[ 575], 90.00th=[ 693], 95.00th=[ 785], | 99.00th=[ 894], 99.50th=[ 995], 99.90th=[ 1053], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 95, per=25.19%, avg=40.05, stdev=19.45, samples=243 iops : min= 1, max= 23, avg= 9.44, stdev= 4.89, samples=243 write: IOPS=10, BW=41.9KiB/s (42.9kB/s)(5256KiB/125537msec); 0 zone resets slat (usec): min=35, max=19524, avg=409.31, stdev=1238.04 clat (msec): min=385, max=2393, avg=1048.08, stdev=320.80 lat (msec): min=385, max=2393, avg=1048.49, stdev=320.86 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 600], 10.00th=[ 676], 20.00th=[ 802], | 30.00th=[ 877], 40.00th=[ 936], 50.00th=[ 1003], 60.00th=[ 1083], | 70.00th=[ 1150], 80.00th=[ 1267], 90.00th=[ 1452], 95.00th=[ 1670], | 99.00th=[ 2106], 99.50th=[ 2265], 99.90th=[ 2333], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 112, per=25.06%, avg=41.60, stdev=20.29, samples=246 iops : min= 1, max= 28, avg= 9.83, stdev= 5.08, samples=246 lat (msec) : 20=0.04%, 50=0.16%, 100=0.16%, 250=0.20%, 500=31.13% lat (msec) : 750=21.60%, 1000=20.39%, 2000=25.55%, >=2000=0.78% cpu : usr=0.11%, sys=0.69%, ctx=4362, 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=145215: Fri Sep 4 06:24:26 2026 read: IOPS=10, BW=40.6KiB/s (41.6kB/s)(5060KiB/124640msec) slat (usec): min=52, max=94590, avg=16958.64, stdev=10129.77 clat (msec): min=18, max=1014, avg=480.48, stdev=146.14 lat (msec): min=18, max=1034, avg=497.45, stdev=149.26 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 296], 10.00th=[ 334], 20.00th=[ 372], | 30.00th=[ 401], 40.00th=[ 430], 50.00th=[ 456], 60.00th=[ 493], | 70.00th=[ 535], 80.00th=[ 592], 90.00th=[ 676], 95.00th=[ 743], | 99.00th=[ 902], 99.50th=[ 961], 99.90th=[ 1003], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 103, per=25.40%, avg=40.38, stdev=18.74, samples=245 iops : min= 1, max= 25, avg= 9.53, stdev= 4.69, samples=245 write: IOPS=10, BW=41.6KiB/s (42.6kB/s)(5180KiB/124640msec); 0 zone resets slat (usec): min=30, max=17840, avg=417.34, stdev=1246.85 clat (msec): min=153, max=2417, avg=1052.50, stdev=339.25 lat (msec): min=154, max=2417, avg=1052.92, stdev=339.26 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 600], 10.00th=[ 676], 20.00th=[ 776], | 30.00th=[ 877], 40.00th=[ 944], 50.00th=[ 1011], 60.00th=[ 1099], | 70.00th=[ 1167], 80.00th=[ 1267], 90.00th=[ 1485], 95.00th=[ 1703], | 99.00th=[ 2123], 99.50th=[ 2333], 99.90th=[ 2400], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 104, per=25.06%, avg=41.60, stdev=19.02, samples=242 iops : min= 1, max= 26, avg= 9.83, stdev= 4.79, samples=242 lat (msec) : 20=0.08%, 50=0.20%, 100=0.39%, 250=0.59%, 500=30.47% lat (msec) : 750=23.91%, 1000=17.97%, 2000=25.43%, >=2000=0.98% cpu : usr=0.10%, sys=0.72%, ctx=4362, majf=0, minf=12 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=160KiB/s (164kB/s), 39.6KiB/s-40.6KiB/s (40.6kB/s-41.6kB/s), io=19.6MiB (20.5MB), run=124640-125647msec WRITE: bw=166KiB/s (170kB/s), 41.4KiB/s-41.9KiB/s (42.4kB/s-42.9kB/s), io=20.4MiB (21.4MB), run=124640-125647msec 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=145238: Fri Sep 4 06:24:36 2026 read: IOPS=2, BW=82.3MiB/s (86.3MB/s)(40.0MiB/486msec) slat (nsec): min=35047k, max=35047k, avg=35047185.00, stdev= 0.00 clat (nsec): min=428229k, max=428229k, avg=428229379.00, stdev= 0.00 lat (nsec): min=463281k, max=463281k, avg=463280811.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 430], 10.00th=[ 430], 20.00th=[ 430], | 30.00th=[ 430], 40.00th=[ 430], 50.00th=[ 430], 60.00th=[ 430], | 70.00th=[ 430], 80.00th=[ 430], 90.00th=[ 430], 95.00th=[ 430], | 99.00th=[ 430], 99.50th=[ 430], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.30%, ctx=43, 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=82.3MiB/s (86.3MB/s), 82.3MiB/s-82.3MiB/s (86.3MB/s-86.3MB/s), io=40.0MiB (41.9MB), run=486-486msec 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