== sanity test 398c: run fio to test AIO ================= 10:19:44 (1788531584) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.375439 s, 112 MB/s osc.lustre-OST0000-osc-ffff9b2449fbf800.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=180387: Fri Sep 4 10:20:19 2026 write: IOPS=98, BW=395KiB/s (404kB/s)(10.0MiB/25931msec); 0 zone resets slat (usec): min=27, max=21537, avg=189.59, stdev=764.51 clat (msec): min=33, max=269, avg=161.23, stdev=36.61 lat (msec): min=34, max=270, avg=161.43, stdev=36.62 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 100], 10.00th=[ 115], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 167], 60.00th=[ 176], | 70.00th=[ 182], 80.00th=[ 190], 90.00th=[ 203], 95.00th=[ 215], | 99.00th=[ 249], 99.50th=[ 262], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 252, max= 638, per=24.81%, avg=391.69, stdev=79.56, samples=51 iops : min= 63, max= 159, avg=97.57, stdev=19.85, samples=51 lat (msec) : 50=0.04%, 100=5.00%, 250=94.10%, 500=0.86% cpu : usr=0.13%, sys=0.71%, ctx=2301, 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=180388: Fri Sep 4 10:20:19 2026 write: IOPS=99, BW=398KiB/s (407kB/s)(10.0MiB/25740msec); 0 zone resets slat (usec): min=29, max=10653, avg=177.54, stdev=517.68 clat (msec): min=20, max=282, avg=160.59, stdev=40.16 lat (msec): min=21, max=282, avg=160.77, stdev=40.16 clat percentiles (msec): | 1.00th=[ 36], 5.00th=[ 83], 10.00th=[ 115], 20.00th=[ 132], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 182], 80.00th=[ 192], 90.00th=[ 207], 95.00th=[ 224], | 99.00th=[ 262], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 294, max= 922, per=25.09%, avg=396.12, stdev=95.97, samples=51 iops : min= 73, max= 230, avg=98.67, stdev=24.01, samples=51 lat (msec) : 50=1.13%, 100=5.20%, 250=91.95%, 500=1.72% cpu : usr=0.18%, sys=0.92%, ctx=2795, 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=180389: Fri Sep 4 10:20:19 2026 write: IOPS=98, BW=396KiB/s (405kB/s)(10.0MiB/25883msec); 0 zone resets slat (usec): min=28, max=9603, avg=177.71, stdev=550.16 clat (msec): min=27, max=288, avg=160.90, stdev=37.09 lat (msec): min=27, max=288, avg=161.08, stdev=37.08 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 97], 10.00th=[ 114], 20.00th=[ 136], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 180], 80.00th=[ 194], 90.00th=[ 207], 95.00th=[ 218], | 99.00th=[ 241], 99.50th=[ 249], 99.90th=[ 271], 99.95th=[ 275], | 99.99th=[ 288] bw ( KiB/s): min= 252, max= 638, per=24.94%, avg=393.76, stdev=77.83, samples=51 iops : min= 63, max= 159, avg=98.14, stdev=19.45, samples=51 lat (msec) : 50=0.04%, 100=5.08%, 250=94.45%, 500=0.43% cpu : usr=0.22%, sys=0.95%, ctx=2483, 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=180390: Fri Sep 4 10:20:19 2026 write: IOPS=98, BW=395KiB/s (404kB/s)(10.0MiB/25933msec); 0 zone resets slat (usec): min=28, max=12884, avg=173.88, stdev=577.24 clat (msec): min=19, max=279, avg=161.18, stdev=38.13 lat (msec): min=20, max=280, avg=161.36, stdev=38.11 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 99], 10.00th=[ 115], 20.00th=[ 132], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 180], 80.00th=[ 192], 90.00th=[ 211], 95.00th=[ 224], | 99.00th=[ 245], 99.50th=[ 275], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 254, max= 638, per=24.79%, avg=391.51, stdev=74.78, samples=51 iops : min= 63, max= 159, avg=97.53, stdev=18.70, samples=51 lat (msec) : 20=0.04%, 50=0.23%, 100=4.80%, 250=94.14%, 500=0.78% cpu : usr=0.22%, sys=0.91%, ctx=2602, 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=1579KiB/s (1617kB/s), 395KiB/s-398KiB/s (404kB/s-407kB/s), io=40.0MiB (41.9MB), run=25740-25933msec 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=180404: Fri Sep 4 10:21:02 2026 read: IOPS=38, BW=154KiB/s (158kB/s)(5048KiB/32815msec) slat (usec): min=2454, max=87028, avg=14631.49, stdev=8616.00 clat (msec): min=28, max=378, avg=194.20, stdev=46.84 lat (msec): min=57, max=385, avg=208.84, stdev=48.59 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 132], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 215], 80.00th=[ 232], 90.00th=[ 262], 95.00th=[ 284], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 359], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 66, max= 224, per=25.14%, avg=153.11, stdev=38.15, samples=64 iops : min= 16, max= 56, avg=37.75, stdev= 9.55, samples=64 write: IOPS=39, BW=158KiB/s (162kB/s)(5192KiB/32815msec); 0 zone resets slat (usec): min=33, max=13775, avg=212.42, stdev=773.78 clat (msec): min=28, max=384, avg=197.31, stdev=44.53 lat (msec): min=28, max=384, avg=197.52, stdev=44.52 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 140], 10.00th=[ 148], 20.00th=[ 159], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 213], 80.00th=[ 230], 90.00th=[ 259], 95.00th=[ 284], | 99.00th=[ 338], 99.50th=[ 351], 99.90th=[ 363], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 53, max= 248, per=24.86%, avg=157.64, stdev=36.60, samples=64 iops : min= 13, max= 62, avg=38.88, stdev= 9.21, samples=64 lat (msec) : 50=0.08%, 100=0.04%, 250=86.91%, 500=12.97% cpu : usr=0.29%, sys=1.56%, ctx=4470, 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=180405: Fri Sep 4 10:21:02 2026 read: IOPS=37, BW=151KiB/s (155kB/s)(4976KiB/32920msec) slat (usec): min=34, max=250072, avg=14827.08, stdev=12263.05 clat (msec): min=17, max=585, avg=194.21, stdev=58.54 lat (msec): min=27, max=603, avg=209.04, stdev=60.88 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 124], 10.00th=[ 138], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 234], 90.00th=[ 262], 95.00th=[ 288], | 99.00th=[ 338], 99.50th=[ 542], 99.90th=[ 575], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 59, max= 231, per=24.52%, avg=149.31, stdev=38.90, samples=65 iops : min= 14, max= 57, avg=36.78, stdev= 9.76, samples=65 write: IOPS=39, BW=160KiB/s (164kB/s)(5264KiB/32920msec); 0 zone resets slat (usec): min=31, max=9898, avg=193.73, stdev=584.77 clat (msec): min=24, max=561, avg=199.42, stdev=52.26 lat (msec): min=24, max=561, avg=199.62, stdev=52.27 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 138], 10.00th=[ 148], 20.00th=[ 159], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 218], 80.00th=[ 236], 90.00th=[ 264], 95.00th=[ 284], | 99.00th=[ 338], 99.50th=[ 405], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 63, max= 240, per=24.90%, avg=157.89, stdev=40.38, samples=65 iops : min= 15, max= 60, avg=38.92, stdev=10.17, samples=65 lat (msec) : 20=0.04%, 50=0.98%, 100=0.62%, 250=85.20%, 500=12.62% lat (msec) : 750=0.55% cpu : usr=0.24%, sys=1.67%, ctx=4320, 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=180406: Fri Sep 4 10:21:02 2026 read: IOPS=38, BW=153KiB/s (157kB/s)(4984KiB/32591msec) slat (usec): min=52, max=65858, avg=14363.77, stdev=8643.42 clat (msec): min=17, max=365, avg=194.86, stdev=47.35 lat (msec): min=20, max=373, avg=209.23, stdev=48.72 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 131], 10.00th=[ 144], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 178], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 232], 90.00th=[ 264], 95.00th=[ 284], | 99.00th=[ 313], 99.50th=[ 338], 99.90th=[ 359], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 69, max= 240, per=25.11%, avg=152.92, stdev=37.15, samples=64 iops : min= 17, max= 60, avg=37.69, stdev= 9.35, samples=64 write: IOPS=40, BW=161KiB/s (165kB/s)(5256KiB/32591msec); 0 zone resets slat (usec): min=30, max=12042, avg=163.43, stdev=502.65 clat (msec): min=66, max=439, avg=197.67, stdev=45.56 lat (msec): min=66, max=439, avg=197.83, stdev=45.56 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 140], 10.00th=[ 148], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 213], 80.00th=[ 230], 90.00th=[ 255], 95.00th=[ 284], | 99.00th=[ 359], 99.50th=[ 380], 99.90th=[ 409], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 69, max= 245, per=25.27%, avg=160.19, stdev=37.32, samples=64 iops : min= 17, max= 61, avg=39.52, stdev= 9.41, samples=64 lat (msec) : 20=0.04%, 50=0.20%, 100=0.31%, 250=87.19%, 500=12.27% cpu : usr=0.25%, sys=1.50%, ctx=4250, 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=180407: Fri Sep 4 10:21:02 2026 read: IOPS=38, BW=155KiB/s (159kB/s)(5060KiB/32682msec) slat (usec): min=2684, max=69729, avg=14136.80, stdev=8496.64 clat (msec): min=21, max=415, avg=193.25, stdev=47.78 lat (msec): min=52, max=429, avg=207.39, stdev=49.23 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 133], 10.00th=[ 142], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 255], 95.00th=[ 284], | 99.00th=[ 342], 99.50th=[ 359], 99.90th=[ 409], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 66, max= 239, per=25.35%, avg=154.41, stdev=34.14, samples=64 iops : min= 16, max= 59, avg=38.05, stdev= 8.58, samples=64 write: IOPS=39, BW=158KiB/s (162kB/s)(5180KiB/32682msec); 0 zone resets slat (usec): min=32, max=25952, avg=237.44, stdev=1014.00 clat (msec): min=107, max=404, avg=197.71, stdev=44.87 lat (msec): min=107, max=404, avg=197.95, stdev=44.86 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 140], 10.00th=[ 148], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 232], 90.00th=[ 262], 95.00th=[ 279], | 99.00th=[ 338], 99.50th=[ 359], 99.90th=[ 384], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 76, max= 240, per=24.81%, avg=157.27, stdev=37.02, samples=64 iops : min= 19, max= 60, avg=38.78, stdev= 9.31, samples=64 lat (msec) : 50=0.08%, 250=87.27%, 500=12.66% cpu : usr=0.22%, sys=1.53%, ctx=4437, 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=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=610KiB/s (624kB/s), 151KiB/s-155KiB/s (155kB/s-159kB/s), io=19.6MiB (20.5MB), run=32591-32920msec WRITE: bw=635KiB/s (650kB/s), 158KiB/s-161KiB/s (162kB/s-165kB/s), io=20.4MiB (21.4MB), run=32591-32920msec 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=180416: Fri Sep 4 10:21:13 2026 read: IOPS=1, BW=75.3MiB/s (78.0MB/s)(40.0MiB/531msec) slat (nsec): min=27919k, max=27919k, avg=27919086.00, stdev= 0.00 clat (nsec): min=483044k, max=483044k, avg=483044474.00, stdev= 0.00 lat (nsec): min=510969k, max=510969k, avg=510968737.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 485], 50.00th=[ 485], 60.00th=[ 485], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 485], 95.00th=[ 485], | 99.00th=[ 485], 99.50th=[ 485], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.45%, ctx=5, majf=0, minf=9 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=75.3MiB/s (78.0MB/s), 75.3MiB/s-75.3MiB/s (78.0MB/s-78.0MB/s), io=40.0MiB (41.9MB), run=531-531msec 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