== sanity test 398c: run fio to test AIO ================= 14:32:12 (1788546732) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.587885 s, 71.3 MB/s osc.lustre-OST0000-osc-ffff9c1950611800.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=180367: Fri Sep 4 14:32:52 2026 write: IOPS=85, BW=341KiB/s (349kB/s)(10.0MiB/30025msec); 0 zone resets slat (usec): min=29, max=18316, avg=234.99, stdev=901.91 clat (msec): min=25, max=349, avg=187.28, stdev=39.92 lat (msec): min=25, max=349, avg=187.52, stdev=39.95 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 130], 10.00th=[ 142], 20.00th=[ 155], | 30.00th=[ 163], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 222], 90.00th=[ 241], 95.00th=[ 253], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 342], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 254, max= 510, per=25.10%, avg=340.08, stdev=52.72, samples=59 iops : min= 63, max= 127, avg=84.58, stdev=13.19, samples=59 lat (msec) : 50=0.08%, 100=1.41%, 250=92.38%, 500=6.13% cpu : usr=0.19%, sys=1.06%, ctx=2842, 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=180368: Fri Sep 4 14:32:52 2026 write: IOPS=84, BW=339KiB/s (347kB/s)(10.0MiB/30212msec); 0 zone resets slat (usec): min=30, max=13851, avg=215.50, stdev=809.62 clat (msec): min=18, max=297, avg=187.86, stdev=36.92 lat (msec): min=19, max=297, avg=188.08, stdev=36.91 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 130], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 205], 80.00th=[ 218], 90.00th=[ 241], 95.00th=[ 253], | 99.00th=[ 279], 99.50th=[ 279], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 253, max= 501, per=25.02%, avg=339.03, stdev=54.42, samples=59 iops : min= 63, max= 125, avg=84.32, stdev=13.60, samples=59 lat (msec) : 20=0.04%, 50=0.04%, 100=0.08%, 250=93.71%, 500=6.13% cpu : usr=0.22%, sys=0.85%, ctx=2552, 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=180369: Fri Sep 4 14:32:52 2026 write: IOPS=84, BW=339KiB/s (347kB/s)(10.0MiB/30220msec); 0 zone resets slat (usec): min=23, max=17763, avg=226.16, stdev=935.54 clat (msec): min=19, max=359, avg=187.80, stdev=37.82 lat (msec): min=19, max=359, avg=188.03, stdev=37.78 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 131], 10.00th=[ 140], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 220], 90.00th=[ 243], 95.00th=[ 253], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 359] bw ( KiB/s): min= 216, max= 471, per=24.88%, avg=337.19, stdev=58.57, samples=59 iops : min= 54, max= 117, avg=83.86, stdev=14.60, samples=59 lat (msec) : 20=0.04%, 50=0.12%, 100=0.23%, 250=93.71%, 500=5.90% cpu : usr=0.16%, sys=1.08%, ctx=2735, 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=180370: Fri Sep 4 14:32:52 2026 write: IOPS=84, BW=339KiB/s (347kB/s)(10.0MiB/30193msec); 0 zone resets slat (usec): min=30, max=13595, avg=232.31, stdev=875.68 clat (msec): min=28, max=308, avg=187.71, stdev=37.58 lat (msec): min=29, max=308, avg=187.94, stdev=37.52 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 133], 10.00th=[ 142], 20.00th=[ 155], | 30.00th=[ 163], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 241], 95.00th=[ 253], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 300], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 254, max= 510, per=25.00%, avg=338.76, stdev=57.40, samples=59 iops : min= 63, max= 127, avg=84.24, stdev=14.38, samples=59 lat (msec) : 50=0.08%, 100=0.27%, 250=93.63%, 500=6.02% cpu : usr=0.23%, sys=1.04%, ctx=2881, 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=1355KiB/s (1388kB/s), 339KiB/s-341KiB/s (347kB/s-349kB/s), io=40.0MiB (41.9MB), run=30025-30220msec 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=180385: Fri Sep 4 14:33:38 2026 read: IOPS=35, BW=142KiB/s (146kB/s)(5048KiB/35450msec) slat (usec): min=34, max=71295, avg=16413.50, stdev=9137.45 clat (msec): min=88, max=418, avg=210.68, stdev=52.15 lat (msec): min=108, max=433, avg=227.10, stdev=54.21 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 136], 10.00th=[ 148], 20.00th=[ 167], | 30.00th=[ 180], 40.00th=[ 192], 50.00th=[ 205], 60.00th=[ 218], | 70.00th=[ 232], 80.00th=[ 251], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 355], 99.50th=[ 363], 99.90th=[ 401], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 46, max= 208, per=25.17%, avg=141.47, stdev=32.34, samples=70 iops : min= 11, max= 52, avg=34.84, stdev= 8.09, samples=70 write: IOPS=36, BW=146KiB/s (150kB/s)(5192KiB/35450msec); 0 zone resets slat (usec): min=37, max=14762, avg=280.70, stdev=866.34 clat (msec): min=77, max=429, avg=215.51, stdev=49.54 lat (msec): min=77, max=429, avg=215.79, stdev=49.51 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 148], 10.00th=[ 161], 20.00th=[ 176], | 30.00th=[ 186], 40.00th=[ 199], 50.00th=[ 209], 60.00th=[ 222], | 70.00th=[ 236], 80.00th=[ 255], 90.00th=[ 279], 95.00th=[ 309], | 99.00th=[ 363], 99.50th=[ 401], 99.90th=[ 426], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 54, max= 228, per=24.95%, avg=145.99, stdev=35.36, samples=70 iops : min= 13, max= 57, avg=35.99, stdev= 8.83, samples=70 lat (msec) : 100=0.20%, 250=78.16%, 500=21.64% cpu : usr=0.30%, sys=1.86%, ctx=4215, 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=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=180386: Fri Sep 4 14:33:38 2026 read: IOPS=34, BW=140KiB/s (143kB/s)(4976KiB/35648msec) slat (msec): min=2, max=189, avg=16.56, stdev=10.54 clat (msec): min=16, max=468, avg=208.72, stdev=50.97 lat (msec): min=30, max=496, avg=225.29, stdev=53.04 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 140], 10.00th=[ 148], 20.00th=[ 167], | 30.00th=[ 180], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 215], | 70.00th=[ 228], 80.00th=[ 251], 90.00th=[ 279], 95.00th=[ 300], | 99.00th=[ 342], 99.50th=[ 359], 99.90th=[ 443], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 38, max= 216, per=24.59%, avg=138.20, stdev=35.11, samples=70 iops : min= 9, max= 54, avg=34.04, stdev= 8.77, samples=70 write: IOPS=36, BW=148KiB/s (151kB/s)(5264KiB/35648msec); 0 zone resets slat (usec): min=35, max=14286, avg=323.15, stdev=1056.99 clat (msec): min=87, max=421, avg=217.90, stdev=49.44 lat (msec): min=87, max=421, avg=218.23, stdev=49.41 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 150], 10.00th=[ 161], 20.00th=[ 174], | 30.00th=[ 188], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 226], | 70.00th=[ 239], 80.00th=[ 259], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 359], 99.50th=[ 393], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 77, max= 248, per=25.19%, avg=147.39, stdev=38.09, samples=70 iops : min= 19, max= 62, avg=36.33, stdev= 9.51, samples=70 lat (msec) : 20=0.08%, 100=0.08%, 250=78.09%, 500=21.76% cpu : usr=0.33%, sys=1.80%, ctx=4499, 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=180387: Fri Sep 4 14:33:38 2026 read: IOPS=34, BW=140KiB/s (143kB/s)(4984KiB/35678msec) slat (usec): min=2576, max=87105, avg=16858.78, stdev=10046.55 clat (msec): min=11, max=461, avg=210.15, stdev=54.66 lat (msec): min=20, max=490, avg=227.02, stdev=57.38 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 136], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 178], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 215], | 70.00th=[ 232], 80.00th=[ 251], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 384], 99.50th=[ 409], 99.90th=[ 430], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 61, max= 223, per=24.64%, avg=138.47, stdev=35.53, samples=70 iops : min= 15, max= 55, avg=34.10, stdev= 8.89, samples=70 write: IOPS=36, BW=147KiB/s (151kB/s)(5256KiB/35678msec); 0 zone resets slat (usec): min=31, max=18460, avg=310.52, stdev=1054.82 clat (msec): min=40, max=501, avg=216.72, stdev=54.25 lat (msec): min=41, max=501, avg=217.03, stdev=54.22 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 188], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 224], | 70.00th=[ 241], 80.00th=[ 255], 90.00th=[ 284], 95.00th=[ 313], | 99.00th=[ 380], 99.50th=[ 405], 99.90th=[ 472], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 54, max= 254, per=24.84%, avg=145.29, stdev=41.18, samples=70 iops : min= 13, max= 63, avg=35.81, stdev=10.29, samples=70 lat (msec) : 20=0.04%, 50=0.12%, 100=0.43%, 250=77.50%, 500=21.88% lat (msec) : 750=0.04% cpu : usr=0.34%, sys=1.88%, ctx=4416, 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=180388: Fri Sep 4 14:33:38 2026 read: IOPS=35, BW=142KiB/s (145kB/s)(5060KiB/35645msec) slat (usec): min=2915, max=71130, avg=16332.89, stdev=9217.20 clat (msec): min=30, max=422, avg=210.33, stdev=49.91 lat (msec): min=41, max=460, avg=226.67, stdev=51.45 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 140], 10.00th=[ 150], 20.00th=[ 167], | 30.00th=[ 182], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 218], | 70.00th=[ 230], 80.00th=[ 251], 90.00th=[ 279], 95.00th=[ 300], | 99.00th=[ 351], 99.50th=[ 372], 99.90th=[ 405], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 53, max= 207, per=25.12%, avg=141.20, stdev=30.96, samples=70 iops : min= 13, max= 51, avg=34.79, stdev= 7.70, samples=70 write: IOPS=36, BW=145KiB/s (149kB/s)(5180KiB/35645msec); 0 zone resets slat (usec): min=25, max=13070, avg=281.33, stdev=930.53 clat (msec): min=80, max=424, avg=216.23, stdev=48.06 lat (msec): min=80, max=424, avg=216.51, stdev=48.05 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 150], 10.00th=[ 161], 20.00th=[ 176], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 211], 60.00th=[ 222], | 70.00th=[ 234], 80.00th=[ 255], 90.00th=[ 284], 95.00th=[ 305], | 99.00th=[ 355], 99.50th=[ 368], 99.90th=[ 405], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 61, max= 252, per=24.63%, avg=144.11, stdev=35.64, samples=70 iops : min= 15, max= 63, avg=35.51, stdev= 8.92, samples=70 lat (msec) : 50=0.04%, 100=0.20%, 250=79.10%, 500=20.66% cpu : usr=0.29%, sys=1.93%, ctx=4236, 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=562KiB/s (576kB/s), 140KiB/s-142KiB/s (143kB/s-146kB/s), io=19.6MiB (20.5MB), run=35450-35678msec WRITE: bw=586KiB/s (600kB/s), 145KiB/s-148KiB/s (149kB/s-151kB/s), io=20.4MiB (21.4MB), run=35450-35678msec 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=180397: Fri Sep 4 14:33:50 2026 read: IOPS=1, BW=60.9MiB/s (63.8MB/s)(40.0MiB/657msec) slat (nsec): min=37373k, max=37373k, avg=37372898.00, stdev= 0.00 clat (nsec): min=581025k, max=581025k, avg=581024681.00, stdev= 0.00 lat (nsec): min=618414k, max=618414k, avg=618414099.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.13%, ctx=4, 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=60.9MiB/s (63.8MB/s), 60.9MiB/s-60.9MiB/s (63.8MB/s-63.8MB/s), io=40.0MiB (41.9MB), run=657-657msec 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