== sanity test 398c: run fio to test AIO ================= 01:54:13 (1781243653) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.48827 s, 85.9 MB/s osc.lustre-OST0000-osc-ffff96cbf7999000.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=180771: Fri Jun 12 01:54:37 2026 write: IOPS=151, BW=608KiB/s (622kB/s)(10.0MiB/16845msec); 0 zone resets slat (usec): min=38, max=9581, avg=257.14, stdev=490.88 clat (msec): min=21, max=206, avg=104.24, stdev=21.43 lat (msec): min=21, max=206, avg=104.50, stdev=21.41 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 75], 10.00th=[ 82], 20.00th=[ 88], | 30.00th=[ 91], 40.00th=[ 97], 50.00th=[ 102], 60.00th=[ 107], | 70.00th=[ 113], 80.00th=[ 121], 90.00th=[ 131], 95.00th=[ 142], | 99.00th=[ 171], 99.50th=[ 180], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 207] bw ( KiB/s): min= 444, max= 766, per=25.03%, avg=608.36, stdev=71.38, samples=33 iops : min= 111, max= 191, avg=151.85, stdev=17.85, samples=33 lat (msec) : 50=0.16%, 100=48.01%, 250=51.84% cpu : usr=0.31%, sys=1.99%, ctx=2644, 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=180772: Fri Jun 12 01:54:37 2026 write: IOPS=151, BW=608KiB/s (622kB/s)(10.0MiB/16845msec); 0 zone resets slat (usec): min=34, max=9556, avg=293.46, stdev=598.40 clat (msec): min=20, max=202, avg=104.30, stdev=21.17 lat (msec): min=21, max=203, avg=104.60, stdev=21.16 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 77], 10.00th=[ 81], 20.00th=[ 88], | 30.00th=[ 92], 40.00th=[ 97], 50.00th=[ 103], 60.00th=[ 107], | 70.00th=[ 112], 80.00th=[ 120], 90.00th=[ 130], 95.00th=[ 140], | 99.00th=[ 176], 99.50th=[ 188], 99.90th=[ 199], 99.95th=[ 199], | 99.99th=[ 203] bw ( KiB/s): min= 381, max= 768, per=24.99%, avg=607.58, stdev=80.57, samples=33 iops : min= 95, max= 192, avg=151.64, stdev=20.16, samples=33 lat (msec) : 50=0.08%, 100=46.09%, 250=53.83% cpu : usr=0.28%, sys=2.22%, ctx=2729, 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=180773: Fri Jun 12 01:54:37 2026 write: IOPS=152, BW=610KiB/s (625kB/s)(10.0MiB/16783msec); 0 zone resets slat (usec): min=38, max=8304, avg=285.77, stdev=573.59 clat (msec): min=8, max=206, avg=104.46, stdev=22.43 lat (msec): min=8, max=206, avg=104.75, stdev=22.43 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 77], 10.00th=[ 81], 20.00th=[ 88], | 30.00th=[ 91], 40.00th=[ 97], 50.00th=[ 102], 60.00th=[ 107], | 70.00th=[ 113], 80.00th=[ 122], 90.00th=[ 134], 95.00th=[ 148], | 99.00th=[ 178], 99.50th=[ 186], 99.90th=[ 203], 99.95th=[ 203], | 99.99th=[ 207] bw ( KiB/s): min= 398, max= 734, per=25.15%, avg=611.33, stdev=69.76, samples=33 iops : min= 99, max= 183, avg=152.58, stdev=17.44, samples=33 lat (msec) : 10=0.04%, 20=0.04%, 50=0.08%, 100=48.71%, 250=51.13% cpu : usr=0.26%, sys=2.26%, ctx=2821, 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=180774: Fri Jun 12 01:54:37 2026 write: IOPS=152, BW=608KiB/s (623kB/s)(10.0MiB/16835msec); 0 zone resets slat (usec): min=38, max=9806, avg=310.08, stdev=608.93 clat (msec): min=14, max=207, avg=104.31, stdev=21.33 lat (msec): min=14, max=207, avg=104.62, stdev=21.34 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 77], 10.00th=[ 81], 20.00th=[ 87], | 30.00th=[ 92], 40.00th=[ 97], 50.00th=[ 103], 60.00th=[ 108], | 70.00th=[ 113], 80.00th=[ 120], 90.00th=[ 131], 95.00th=[ 142], | 99.00th=[ 169], 99.50th=[ 180], 99.90th=[ 207], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 438, max= 726, per=25.03%, avg=608.52, stdev=71.57, samples=33 iops : min= 109, max= 181, avg=151.88, stdev=17.92, samples=33 lat (msec) : 20=0.08%, 50=0.04%, 100=46.41%, 250=53.48% cpu : usr=0.33%, sys=2.26%, ctx=2935, 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=2432KiB/s (2490kB/s), 608KiB/s-610KiB/s (622kB/s-625kB/s), io=40.0MiB (41.9MB), run=16783-16845msec 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=180786: Fri Jun 12 01:55:03 2026 read: IOPS=60, BW=242KiB/s (248kB/s)(5048KiB/20838msec) slat (usec): min=2104, max=37847, avg=9177.68, stdev=4762.54 clat (msec): min=6, max=234, avg=122.67, stdev=31.75 lat (msec): min=11, max=255, avg=131.85, stdev=32.89 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 81], 10.00th=[ 88], 20.00th=[ 96], | 30.00th=[ 105], 40.00th=[ 113], 50.00th=[ 121], 60.00th=[ 128], | 70.00th=[ 138], 80.00th=[ 148], 90.00th=[ 165], 95.00th=[ 184], | 99.00th=[ 205], 99.50th=[ 213], 99.90th=[ 230], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 140, max= 328, per=24.89%, avg=239.68, stdev=47.20, samples=41 iops : min= 35, max= 82, avg=59.51, stdev=11.88, samples=41 write: IOPS=62, BW=249KiB/s (255kB/s)(5192KiB/20838msec); 0 zone resets slat (usec): min=44, max=8107, avg=318.59, stdev=648.57 clat (msec): min=8, max=260, avg=125.72, stdev=30.62 lat (msec): min=9, max=260, avg=126.04, stdev=30.65 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 84], 10.00th=[ 91], 20.00th=[ 101], | 30.00th=[ 108], 40.00th=[ 115], 50.00th=[ 123], 60.00th=[ 132], | 70.00th=[ 140], 80.00th=[ 150], 90.00th=[ 165], 95.00th=[ 182], | 99.00th=[ 213], 99.50th=[ 228], 99.90th=[ 257], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 147, max= 360, per=24.72%, avg=247.68, stdev=52.03, samples=41 iops : min= 36, max= 90, avg=61.51, stdev=13.19, samples=41 lat (msec) : 10=0.20%, 20=0.12%, 50=0.31%, 100=21.52%, 250=77.77% lat (msec) : 500=0.08% cpu : usr=0.29%, sys=2.81%, ctx=4755, 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=180787: Fri Jun 12 01:55:03 2026 read: IOPS=59, BW=239KiB/s (245kB/s)(4976KiB/20810msec) slat (usec): min=1854, max=39858, avg=9223.20, stdev=4750.80 clat (msec): min=11, max=259, avg=121.63, stdev=31.65 lat (msec): min=20, max=263, avg=130.87, stdev=32.83 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 81], 10.00th=[ 87], 20.00th=[ 94], | 30.00th=[ 102], 40.00th=[ 111], 50.00th=[ 118], 60.00th=[ 126], | 70.00th=[ 134], 80.00th=[ 146], 90.00th=[ 163], 95.00th=[ 180], | 99.00th=[ 211], 99.50th=[ 239], 99.90th=[ 253], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 140, max= 352, per=24.77%, avg=238.56, stdev=53.16, samples=41 iops : min= 35, max= 88, avg=59.22, stdev=13.39, samples=41 write: IOPS=63, BW=253KiB/s (259kB/s)(5264KiB/20810msec); 0 zone resets slat (usec): min=43, max=9934, avg=287.29, stdev=534.89 clat (msec): min=52, max=248, avg=126.89, stdev=30.01 lat (msec): min=52, max=248, avg=127.18, stdev=30.02 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 85], 10.00th=[ 93], 20.00th=[ 102], | 30.00th=[ 109], 40.00th=[ 116], 50.00th=[ 125], 60.00th=[ 132], | 70.00th=[ 140], 80.00th=[ 153], 90.00th=[ 167], 95.00th=[ 182], | 99.00th=[ 211], 99.50th=[ 220], 99.90th=[ 234], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 159, max= 360, per=25.23%, avg=252.85, stdev=50.09, samples=41 iops : min= 39, max= 90, avg=62.83, stdev=12.65, samples=41 lat (msec) : 20=0.08%, 50=0.04%, 100=23.40%, 250=76.41%, 500=0.08% cpu : usr=0.36%, sys=2.86%, ctx=4688, 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=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=180788: Fri Jun 12 01:55:03 2026 read: IOPS=60, BW=240KiB/s (246kB/s)(4984KiB/20757msec) slat (usec): min=2059, max=38581, avg=9194.81, stdev=4728.63 clat (msec): min=50, max=250, avg=123.28, stdev=31.51 lat (msec): min=60, max=259, avg=132.48, stdev=32.71 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 81], 10.00th=[ 87], 20.00th=[ 96], | 30.00th=[ 104], 40.00th=[ 112], 50.00th=[ 121], 60.00th=[ 128], | 70.00th=[ 138], 80.00th=[ 148], 90.00th=[ 167], 95.00th=[ 182], | 99.00th=[ 213], 99.50th=[ 220], 99.90th=[ 245], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 140, max= 336, per=24.93%, avg=240.05, stdev=44.11, samples=41 iops : min= 35, max= 84, avg=59.63, stdev=11.15, samples=41 write: IOPS=63, BW=253KiB/s (259kB/s)(5256KiB/20757msec); 0 zone resets slat (usec): min=41, max=7415, avg=283.34, stdev=506.71 clat (msec): min=57, max=239, avg=124.27, stdev=29.17 lat (msec): min=57, max=240, avg=124.56, stdev=29.19 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 83], 10.00th=[ 90], 20.00th=[ 100], | 30.00th=[ 107], 40.00th=[ 113], 50.00th=[ 122], 60.00th=[ 129], | 70.00th=[ 140], 80.00th=[ 148], 90.00th=[ 163], 95.00th=[ 176], | 99.00th=[ 201], 99.50th=[ 215], 99.90th=[ 232], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 79, max= 392, per=25.13%, avg=251.83, stdev=59.01, samples=41 iops : min= 19, max= 98, avg=62.56, stdev=14.88, samples=41 lat (msec) : 100=23.32%, 250=76.64%, 500=0.04% cpu : usr=0.34%, sys=2.72%, ctx=4740, 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=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=180789: Fri Jun 12 01:55:03 2026 read: IOPS=61, BW=244KiB/s (250kB/s)(5060KiB/20731msec) slat (usec): min=95, max=31683, avg=9250.24, stdev=4830.21 clat (msec): min=18, max=258, avg=122.67, stdev=31.38 lat (msec): min=29, max=262, avg=131.94, stdev=32.57 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 80], 10.00th=[ 86], 20.00th=[ 96], | 30.00th=[ 104], 40.00th=[ 112], 50.00th=[ 120], 60.00th=[ 128], | 70.00th=[ 138], 80.00th=[ 150], 90.00th=[ 165], 95.00th=[ 180], | 99.00th=[ 205], 99.50th=[ 213], 99.90th=[ 255], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 151, max= 343, per=25.15%, avg=242.23, stdev=43.06, samples=40 iops : min= 37, max= 85, avg=60.15, stdev=10.90, samples=40 write: IOPS=62, BW=250KiB/s (256kB/s)(5180KiB/20731msec); 0 zone resets slat (usec): min=43, max=6648, avg=274.41, stdev=439.87 clat (msec): min=48, max=263, avg=126.53, stdev=29.75 lat (msec): min=48, max=265, avg=126.81, stdev=29.76 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 84], 10.00th=[ 92], 20.00th=[ 102], | 30.00th=[ 109], 40.00th=[ 116], 50.00th=[ 125], 60.00th=[ 132], | 70.00th=[ 140], 80.00th=[ 153], 90.00th=[ 165], 95.00th=[ 178], | 99.00th=[ 211], 99.50th=[ 224], 99.90th=[ 241], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 143, max= 336, per=24.72%, avg=247.67, stdev=51.50, samples=40 iops : min= 35, max= 84, avg=61.50, stdev=13.03, samples=40 lat (msec) : 20=0.04%, 50=0.27%, 100=21.33%, 250=78.24%, 500=0.12% cpu : usr=0.34%, sys=2.85%, ctx=4742, 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=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=963KiB/s (986kB/s), 239KiB/s-244KiB/s (245kB/s-250kB/s), io=19.6MiB (20.5MB), run=20731-20838msec WRITE: bw=1003KiB/s (1027kB/s), 249KiB/s-253KiB/s (255kB/s-259kB/s), io=20.4MiB (21.4MB), run=20731-20838msec 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=180796: Fri Jun 12 01:55:09 2026 read: IOPS=2, BW=107MiB/s (112MB/s)(40.0MiB/374msec) slat (nsec): min=24259k, max=24259k, avg=24259244.00, stdev= 0.00 clat (nsec): min=339935k, max=339935k, avg=339934762.00, stdev= 0.00 lat (nsec): min=364199k, max=364199k, avg=364198602.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 342], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 342], 95.00th=[ 342], | 99.00th=[ 342], 99.50th=[ 342], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.49%, ctx=6, majf=0, minf=10 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=107MiB/s (112MB/s), 107MiB/s-107MiB/s (112MB/s-112MB/s), io=40.0MiB (41.9MB), run=374-374msec 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