== sanity test 398c: run fio to test AIO ================= 08:56:21 (1788267381) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.329005 s, 127 MB/s osc.lustre-OST0000-osc-ffff9c3812d98000.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=146111: Tue Sep 1 08:57:58 2026 write: IOPS=28, BW=112KiB/s (115kB/s)(10.0MiB/91177msec); 0 zone resets slat (usec): min=26, max=6511, avg=222.99, stdev=460.59 clat (msec): min=113, max=1042, avg=569.23, stdev=137.70 lat (msec): min=113, max=1042, avg=569.46, stdev=137.70 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 363], 10.00th=[ 409], 20.00th=[ 468], | 30.00th=[ 510], 40.00th=[ 542], 50.00th=[ 575], 60.00th=[ 600], | 70.00th=[ 634], 80.00th=[ 676], 90.00th=[ 735], 95.00th=[ 793], | 99.00th=[ 877], 99.50th=[ 927], 99.90th=[ 1036], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 39, max= 348, per=24.83%, avg=111.49, stdev=36.52, samples=181 iops : min= 9, max= 87, avg=27.44, stdev= 9.18, samples=181 lat (msec) : 250=2.58%, 500=24.49%, 750=63.98%, 1000=8.83%, 2000=0.12% cpu : usr=0.07%, sys=0.37%, ctx=2450, 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=146112: Tue Sep 1 08:57:58 2026 write: IOPS=28, BW=113KiB/s (115kB/s)(10.0MiB/90915msec); 0 zone resets slat (usec): min=23, max=4473, avg=210.89, stdev=368.26 clat (msec): min=44, max=1191, avg=567.68, stdev=141.76 lat (msec): min=44, max=1191, avg=567.89, stdev=141.77 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 351], 10.00th=[ 405], 20.00th=[ 468], | 30.00th=[ 506], 40.00th=[ 542], 50.00th=[ 575], 60.00th=[ 600], | 70.00th=[ 634], 80.00th=[ 676], 90.00th=[ 743], 95.00th=[ 793], | 99.00th=[ 877], 99.50th=[ 919], 99.90th=[ 1062], 99.95th=[ 1133], | 99.99th=[ 1200] bw ( KiB/s): min= 31, max= 435, per=24.96%, avg=112.05, stdev=36.46, samples=180 iops : min= 7, max= 108, avg=27.58, stdev= 9.10, samples=180 lat (msec) : 50=0.20%, 100=0.23%, 250=2.42%, 500=24.69%, 750=63.91% lat (msec) : 1000=8.36%, 2000=0.20% cpu : usr=0.06%, sys=0.39%, ctx=2339, 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=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=146113: Tue Sep 1 08:57:58 2026 write: IOPS=28, BW=112KiB/s (115kB/s)(10.0MiB/91135msec); 0 zone resets slat (usec): min=27, max=5496, avg=220.43, stdev=416.87 clat (msec): min=104, max=1047, avg=568.75, stdev=139.38 lat (msec): min=104, max=1047, avg=568.97, stdev=139.39 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 368], 10.00th=[ 409], 20.00th=[ 468], | 30.00th=[ 506], 40.00th=[ 542], 50.00th=[ 575], 60.00th=[ 609], | 70.00th=[ 634], 80.00th=[ 676], 90.00th=[ 743], 95.00th=[ 785], | 99.00th=[ 885], 99.50th=[ 961], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 48, max= 377, per=24.83%, avg=111.50, stdev=33.84, samples=181 iops : min= 12, max= 94, avg=27.45, stdev= 8.47, samples=181 lat (msec) : 250=2.70%, 500=25.27%, 750=63.52%, 1000=8.24%, 2000=0.27% cpu : usr=0.07%, sys=0.39%, ctx=2546, 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=146114: Tue Sep 1 08:57:58 2026 write: IOPS=28, BW=112KiB/s (115kB/s)(10.0MiB/91176msec); 0 zone resets slat (usec): min=21, max=5723, avg=215.83, stdev=407.30 clat (msec): min=102, max=1054, avg=569.05, stdev=140.69 lat (msec): min=102, max=1054, avg=569.27, stdev=140.70 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 359], 10.00th=[ 405], 20.00th=[ 464], | 30.00th=[ 506], 40.00th=[ 542], 50.00th=[ 575], 60.00th=[ 600], | 70.00th=[ 642], 80.00th=[ 684], 90.00th=[ 743], 95.00th=[ 793], | 99.00th=[ 885], 99.50th=[ 919], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 39, max= 363, per=24.84%, avg=111.51, stdev=37.35, samples=181 iops : min= 9, max= 90, avg=27.45, stdev= 9.31, samples=181 lat (msec) : 250=2.62%, 500=25.12%, 750=63.44%, 1000=8.67%, 2000=0.16% cpu : usr=0.07%, sys=0.38%, ctx=2281, 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=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=449KiB/s (460kB/s), 112KiB/s-113KiB/s (115kB/s-115kB/s), io=40.0MiB (41.9MB), run=90915-91177msec 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=146137: Tue Sep 1 08:59:02 2026 read: IOPS=21, BW=87.3KiB/s (89.4kB/s)(5048KiB/57794msec) slat (usec): min=34, max=22526, avg=7115.38, stdev=3024.61 clat (msec): min=9, max=820, avg=230.01, stdev=60.75 lat (msec): min=15, max=823, avg=237.13, stdev=61.36 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 159], 10.00th=[ 174], 20.00th=[ 188], | 30.00th=[ 201], 40.00th=[ 213], 50.00th=[ 226], 60.00th=[ 241], | 70.00th=[ 253], 80.00th=[ 271], 90.00th=[ 292], 95.00th=[ 313], | 99.00th=[ 372], 99.50th=[ 397], 99.90th=[ 735], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 24, max= 160, per=25.26%, avg=87.41, stdev=30.99, samples=114 iops : min= 6, max= 40, avg=21.46, stdev= 7.75, samples=114 write: IOPS=22, BW=89.8KiB/s (91.0kB/s)(5192KiB/57794msec); 0 zone resets slat (usec): min=36, max=5906, avg=239.75, stdev=416.59 clat (msec): min=64, max=1256, avg=480.75, stdev=150.07 lat (msec): min=64, max=1257, avg=480.99, stdev=150.11 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 279], 10.00th=[ 313], 20.00th=[ 355], | 30.00th=[ 384], 40.00th=[ 426], 50.00th=[ 460], 60.00th=[ 498], | 70.00th=[ 542], 80.00th=[ 609], 90.00th=[ 684], 95.00th=[ 743], | 99.00th=[ 885], 99.50th=[ 936], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 39, max= 175, per=24.90%, avg=89.62, stdev=25.76, samples=114 iops : min= 9, max= 43, avg=22.02, stdev= 6.47, samples=114 lat (msec) : 10=0.04%, 20=0.12%, 50=0.16%, 100=0.59%, 250=34.49% lat (msec) : 500=44.30%, 750=17.81%, 1000=2.34%, 2000=0.16% cpu : usr=0.13%, sys=0.99%, ctx=5106, 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=146138: Tue Sep 1 08:59:02 2026 read: IOPS=21, BW=85.8KiB/s (87.9kB/s)(4976KiB/57997msec) slat (msec): min=2, max=222, avg= 7.16, stdev= 6.75 clat (msec): min=12, max=595, avg=227.48, stdev=54.96 lat (msec): min=18, max=600, avg=234.64, stdev=55.28 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 146], 10.00th=[ 165], 20.00th=[ 186], | 30.00th=[ 201], 40.00th=[ 211], 50.00th=[ 226], 60.00th=[ 236], | 70.00th=[ 255], 80.00th=[ 271], 90.00th=[ 292], 95.00th=[ 313], | 99.00th=[ 372], 99.50th=[ 397], 99.90th=[ 506], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 15, max= 168, per=24.62%, avg=85.17, stdev=33.42, samples=115 iops : min= 3, max= 42, avg=20.90, stdev= 8.39, samples=115 write: IOPS=22, BW=90.8KiB/s (92.9kB/s)(5264KiB/57997msec); 0 zone resets slat (usec): min=26, max=4107, avg=237.29, stdev=378.80 clat (msec): min=52, max=954, avg=481.94, stdev=143.86 lat (msec): min=52, max=954, avg=482.18, stdev=143.88 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 279], 10.00th=[ 317], 20.00th=[ 355], | 30.00th=[ 393], 40.00th=[ 426], 50.00th=[ 456], 60.00th=[ 506], | 70.00th=[ 550], 80.00th=[ 609], 90.00th=[ 684], 95.00th=[ 751], | 99.00th=[ 835], 99.50th=[ 860], 99.90th=[ 936], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 31, max= 144, per=24.96%, avg=89.84, stdev=25.07, samples=115 iops : min= 7, max= 36, avg=22.07, stdev= 6.28, samples=115 lat (msec) : 20=0.08%, 50=0.27%, 100=0.27%, 250=33.12%, 500=45.04% lat (msec) : 750=18.63%, 1000=2.58% cpu : usr=0.13%, sys=0.99%, ctx=4916, 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=146139: Tue Sep 1 08:59:02 2026 read: IOPS=21, BW=86.1KiB/s (88.2kB/s)(4984KiB/57879msec) slat (usec): min=1686, max=23895, avg=7249.06, stdev=3034.66 clat (msec): min=15, max=777, avg=226.50, stdev=55.69 lat (msec): min=23, max=783, avg=233.75, stdev=56.36 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 144], 10.00th=[ 165], 20.00th=[ 182], | 30.00th=[ 201], 40.00th=[ 213], 50.00th=[ 226], 60.00th=[ 239], | 70.00th=[ 253], 80.00th=[ 271], 90.00th=[ 292], 95.00th=[ 313], | 99.00th=[ 359], 99.50th=[ 372], 99.90th=[ 397], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 23, max= 184, per=25.05%, avg=86.66, stdev=31.99, samples=114 iops : min= 5, max= 46, avg=21.27, stdev= 8.01, samples=114 write: IOPS=22, BW=90.8KiB/s (92.0kB/s)(5256KiB/57879msec); 0 zone resets slat (usec): min=37, max=6647, avg=243.64, stdev=417.38 clat (msec): min=94, max=1293, avg=481.40, stdev=151.36 lat (msec): min=94, max=1294, avg=481.64, stdev=151.40 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 279], 10.00th=[ 317], 20.00th=[ 355], | 30.00th=[ 393], 40.00th=[ 422], 50.00th=[ 456], 60.00th=[ 493], | 70.00th=[ 542], 80.00th=[ 609], 90.00th=[ 684], 95.00th=[ 760], | 99.00th=[ 869], 99.50th=[ 1036], 99.90th=[ 1217], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 24, max= 152, per=25.14%, avg=90.50, stdev=27.15, samples=114 iops : min= 6, max= 38, avg=22.24, stdev= 6.82, samples=114 lat (msec) : 20=0.04%, 50=0.31%, 100=0.35%, 250=34.30%, 500=45.35% lat (msec) : 750=16.91%, 1000=2.46%, 2000=0.27% cpu : usr=0.12%, sys=0.98%, ctx=5106, 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=146140: Tue Sep 1 08:59:02 2026 read: IOPS=21, BW=87.4KiB/s (89.5kB/s)(5060KiB/57919msec) slat (usec): min=2474, max=27052, avg=7124.63, stdev=3062.22 clat (msec): min=8, max=558, avg=224.93, stdev=53.93 lat (msec): min=14, max=571, avg=232.07, stdev=54.59 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 144], 10.00th=[ 163], 20.00th=[ 182], | 30.00th=[ 199], 40.00th=[ 211], 50.00th=[ 222], 60.00th=[ 236], | 70.00th=[ 251], 80.00th=[ 268], 90.00th=[ 292], 95.00th=[ 309], | 99.00th=[ 355], 99.50th=[ 372], 99.90th=[ 510], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 23, max= 199, per=25.13%, avg=86.96, stdev=32.88, samples=115 iops : min= 5, max= 49, avg=21.35, stdev= 8.25, samples=115 write: IOPS=22, BW=89.4KiB/s (91.6kB/s)(5180KiB/57919msec); 0 zone resets slat (usec): min=34, max=8445, avg=256.43, stdev=498.21 clat (msec): min=93, max=956, avg=487.03, stdev=144.42 lat (msec): min=93, max=956, avg=487.28, stdev=144.42 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 288], 10.00th=[ 321], 20.00th=[ 359], | 30.00th=[ 393], 40.00th=[ 430], 50.00th=[ 464], 60.00th=[ 510], | 70.00th=[ 550], 80.00th=[ 617], 90.00th=[ 693], 95.00th=[ 751], | 99.00th=[ 860], 99.50th=[ 877], 99.90th=[ 936], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 32, max= 151, per=24.64%, avg=88.70, stdev=24.61, samples=115 iops : min= 8, max= 37, avg=21.78, stdev= 6.17, samples=115 lat (msec) : 10=0.04%, 20=0.04%, 50=0.16%, 100=0.31%, 250=34.53% lat (msec) : 500=43.05%, 750=19.22%, 1000=2.66% cpu : usr=0.15%, sys=0.99%, ctx=5081, 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=346KiB/s (354kB/s), 85.8KiB/s-87.4KiB/s (87.9kB/s-89.5kB/s), io=19.6MiB (20.5MB), run=57794-57997msec WRITE: bw=360KiB/s (369kB/s), 89.4KiB/s-90.8KiB/s (91.6kB/s-92.0kB/s), io=20.4MiB (21.4MB), run=57794-57997msec 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=146155: Tue Sep 1 08:59:08 2026 read: IOPS=3, BW=123MiB/s (129MB/s)(40.0MiB/326msec) slat (nsec): min=17451k, max=17451k, avg=17451240.00, stdev= 0.00 clat (nsec): min=287996k, max=287996k, avg=287996109.00, stdev= 0.00 lat (nsec): min=305451k, max=305451k, avg=305450763.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 288], 60.00th=[ 288], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 288], 95.00th=[ 288], | 99.00th=[ 288], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.69%, 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=123MiB/s (129MB/s), 123MiB/s-123MiB/s (129MB/s-129MB/s), io=40.0MiB (41.9MB), run=326-326msec 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