== sanity test 398c: run fio to test AIO ================= 07:08:13 (1768306093) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.668104 s, 62.8 MB/s osc.lustre-OST0000-osc-ffffa03567793800.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=182669: Tue Jan 13 07:08:59 2026 write: IOPS=76, BW=306KiB/s (313kB/s)(10.0MiB/33482msec); 0 zone resets slat (usec): min=22, max=19632, avg=129.14, stdev=679.22 clat (msec): min=58, max=506, avg=208.99, stdev=73.87 lat (msec): min=58, max=506, avg=209.13, stdev=73.88 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 109], 10.00th=[ 127], 20.00th=[ 144], | 30.00th=[ 163], 40.00th=[ 186], 50.00th=[ 197], 60.00th=[ 220], | 70.00th=[ 241], 80.00th=[ 268], 90.00th=[ 300], 95.00th=[ 347], | 99.00th=[ 447], 99.50th=[ 456], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 126, max= 510, per=25.12%, avg=305.42, stdev=97.05, samples=66 iops : min= 31, max= 127, avg=75.88, stdev=24.32, samples=66 lat (msec) : 100=2.73%, 250=71.64%, 500=25.20%, 750=0.43% cpu : usr=0.10%, sys=0.52%, ctx=791, 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=182670: Tue Jan 13 07:08:59 2026 write: IOPS=76, BW=304KiB/s (311kB/s)(10.0MiB/33663msec); 0 zone resets slat (usec): min=22, max=30552, avg=193.36, stdev=975.46 clat (msec): min=28, max=490, avg=209.55, stdev=74.16 lat (msec): min=29, max=490, avg=209.74, stdev=74.15 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 111], 10.00th=[ 124], 20.00th=[ 146], | 30.00th=[ 167], 40.00th=[ 184], 50.00th=[ 197], 60.00th=[ 220], | 70.00th=[ 239], 80.00th=[ 266], 90.00th=[ 305], 95.00th=[ 355], | 99.00th=[ 430], 99.50th=[ 456], 99.90th=[ 464], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 134, max= 518, per=24.92%, avg=303.00, stdev=94.20, samples=66 iops : min= 33, max= 129, avg=75.29, stdev=23.57, samples=66 lat (msec) : 50=0.39%, 100=2.93%, 250=71.17%, 500=25.51% cpu : usr=0.14%, sys=0.72%, ctx=2629, 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=182671: Tue Jan 13 07:08:59 2026 write: IOPS=76, BW=304KiB/s (311kB/s)(10.0MiB/33666msec); 0 zone resets slat (usec): min=28, max=20622, avg=185.39, stdev=857.39 clat (msec): min=18, max=501, avg=209.48, stdev=72.78 lat (msec): min=18, max=501, avg=209.66, stdev=72.77 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 115], 10.00th=[ 129], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 184], 50.00th=[ 199], 60.00th=[ 220], | 70.00th=[ 239], 80.00th=[ 268], 90.00th=[ 305], 95.00th=[ 351], | 99.00th=[ 422], 99.50th=[ 439], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 126, max= 605, per=24.88%, avg=302.48, stdev=95.03, samples=66 iops : min= 31, max= 151, avg=75.17, stdev=23.81, samples=66 lat (msec) : 20=0.04%, 50=0.08%, 100=2.81%, 250=71.84%, 500=25.08% lat (msec) : 750=0.16% cpu : usr=0.10%, sys=0.77%, ctx=2253, 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=182672: Tue Jan 13 07:08:59 2026 write: IOPS=76, BW=305KiB/s (313kB/s)(10.0MiB/33526msec); 0 zone resets slat (usec): min=28, max=25162, avg=156.21, stdev=660.30 clat (msec): min=24, max=488, avg=208.93, stdev=77.02 lat (msec): min=24, max=488, avg=209.09, stdev=77.01 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 107], 10.00th=[ 125], 20.00th=[ 144], | 30.00th=[ 161], 40.00th=[ 184], 50.00th=[ 197], 60.00th=[ 215], | 70.00th=[ 241], 80.00th=[ 271], 90.00th=[ 305], 95.00th=[ 355], | 99.00th=[ 430], 99.50th=[ 447], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 489] bw ( KiB/s): min= 136, max= 589, per=25.12%, avg=305.41, stdev=102.22, samples=66 iops : min= 34, max= 147, avg=75.91, stdev=25.56, samples=66 lat (msec) : 50=0.59%, 100=3.67%, 250=69.57%, 500=26.17% cpu : usr=0.14%, sys=0.61%, ctx=1848, 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=1217KiB/s (1246kB/s), 304KiB/s-306KiB/s (311kB/s-313kB/s), io=40.0MiB (41.9MB), run=33482-33666msec 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=182687: Tue Jan 13 07:09:40 2026 read: IOPS=42, BW=170KiB/s (174kB/s)(5048KiB/29661msec) slat (usec): min=112, max=59687, avg=14124.50, stdev=8682.46 clat (msec): min=23, max=424, avg=173.52, stdev=59.48 lat (msec): min=31, max=433, avg=187.65, stdev=63.29 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 82], 10.00th=[ 99], 20.00th=[ 126], | 30.00th=[ 144], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 182], | 70.00th=[ 199], 80.00th=[ 222], 90.00th=[ 255], 95.00th=[ 279], | 99.00th=[ 330], 99.50th=[ 347], 99.90th=[ 414], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 55, max= 349, per=24.85%, avg=168.00, stdev=58.44, samples=58 iops : min= 13, max= 87, avg=41.60, stdev=14.73, samples=58 write: IOPS=43, BW=175KiB/s (179kB/s)(5192KiB/29661msec); 0 zone resets slat (usec): min=24, max=6734, avg=162.42, stdev=419.89 clat (msec): min=42, max=426, avg=180.30, stdev=56.30 lat (msec): min=42, max=426, avg=180.46, stdev=56.31 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 93], 10.00th=[ 111], 20.00th=[ 134], | 30.00th=[ 150], 40.00th=[ 163], 50.00th=[ 176], 60.00th=[ 190], | 70.00th=[ 205], 80.00th=[ 224], 90.00th=[ 259], 95.00th=[ 279], | 99.00th=[ 330], 99.50th=[ 351], 99.90th=[ 414], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 72, max= 336, per=24.68%, avg=173.78, stdev=55.63, samples=58 iops : min= 18, max= 84, avg=43.05, stdev=14.03, samples=58 lat (msec) : 50=0.43%, 100=8.09%, 250=79.73%, 500=11.76% cpu : usr=0.26%, sys=1.72%, ctx=4309, 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=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=182688: Tue Jan 13 07:09:40 2026 read: IOPS=42, BW=168KiB/s (172kB/s)(4976KiB/29611msec) slat (usec): min=2308, max=71296, avg=14069.14, stdev=8296.44 clat (msec): min=41, max=415, avg=176.27, stdev=58.07 lat (msec): min=48, max=439, avg=190.35, stdev=61.09 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 87], 10.00th=[ 102], 20.00th=[ 130], | 30.00th=[ 146], 40.00th=[ 159], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 201], 80.00th=[ 224], 90.00th=[ 251], 95.00th=[ 288], | 99.00th=[ 338], 99.50th=[ 359], 99.90th=[ 414], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 64, max= 320, per=24.70%, avg=166.97, stdev=57.84, samples=58 iops : min= 16, max= 80, avg=41.34, stdev=14.55, samples=58 write: IOPS=44, BW=178KiB/s (182kB/s)(5264KiB/29611msec); 0 zone resets slat (usec): min=23, max=15591, avg=204.71, stdev=786.91 clat (msec): min=58, max=382, avg=177.94, stdev=54.58 lat (msec): min=58, max=382, avg=178.14, stdev=54.65 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 93], 10.00th=[ 111], 20.00th=[ 132], | 30.00th=[ 150], 40.00th=[ 163], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 201], 80.00th=[ 222], 90.00th=[ 247], 95.00th=[ 279], | 99.00th=[ 338], 99.50th=[ 355], 99.90th=[ 368], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 71, max= 360, per=25.18%, avg=177.29, stdev=57.48, samples=58 iops : min= 17, max= 90, avg=43.93, stdev=14.48, samples=58 lat (msec) : 50=0.12%, 100=8.40%, 250=81.64%, 500=9.84% cpu : usr=0.28%, sys=1.77%, ctx=4517, 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=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=182689: Tue Jan 13 07:09:40 2026 read: IOPS=42, BW=169KiB/s (173kB/s)(4984KiB/29540msec) slat (usec): min=1535, max=79091, avg=13912.55, stdev=8746.58 clat (msec): min=37, max=401, avg=173.89, stdev=56.12 lat (msec): min=50, max=440, avg=187.81, stdev=59.54 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 86], 10.00th=[ 100], 20.00th=[ 129], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 201], 80.00th=[ 218], 90.00th=[ 247], 95.00th=[ 275], | 99.00th=[ 326], 99.50th=[ 347], 99.90th=[ 376], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 79, max= 336, per=24.94%, avg=168.57, stdev=57.41, samples=58 iops : min= 19, max= 84, avg=41.74, stdev=14.46, samples=58 write: IOPS=44, BW=178KiB/s (182kB/s)(5256KiB/29540msec); 0 zone resets slat (usec): min=24, max=14374, avg=197.61, stdev=631.04 clat (msec): min=47, max=418, avg=179.23, stdev=55.70 lat (msec): min=47, max=418, avg=179.43, stdev=55.72 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 99], 10.00th=[ 107], 20.00th=[ 132], | 30.00th=[ 148], 40.00th=[ 163], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 201], 80.00th=[ 222], 90.00th=[ 257], 95.00th=[ 279], | 99.00th=[ 330], 99.50th=[ 359], 99.90th=[ 388], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 87, max= 344, per=25.17%, avg=177.21, stdev=60.05, samples=58 iops : min= 21, max= 86, avg=43.90, stdev=15.11, samples=58 lat (msec) : 50=0.12%, 100=7.93%, 250=81.60%, 500=10.35% cpu : usr=0.33%, sys=1.72%, ctx=4437, 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=182690: Tue Jan 13 07:09:40 2026 read: IOPS=42, BW=172KiB/s (176kB/s)(5060KiB/29472msec) slat (usec): min=46, max=64111, avg=13885.47, stdev=8457.93 clat (msec): min=16, max=406, avg=174.46, stdev=56.05 lat (msec): min=17, max=440, avg=188.35, stdev=59.21 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 86], 10.00th=[ 101], 20.00th=[ 129], | 30.00th=[ 146], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 186], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 243], 95.00th=[ 271], | 99.00th=[ 342], 99.50th=[ 368], 99.90th=[ 393], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 79, max= 360, per=25.33%, avg=171.22, stdev=58.27, samples=58 iops : min= 19, max= 90, avg=42.41, stdev=14.70, samples=58 write: IOPS=43, BW=176KiB/s (180kB/s)(5180KiB/29472msec); 0 zone resets slat (usec): min=27, max=13409, avg=229.16, stdev=801.95 clat (msec): min=62, max=391, avg=179.42, stdev=54.38 lat (msec): min=62, max=391, avg=179.65, stdev=54.43 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 93], 10.00th=[ 108], 20.00th=[ 138], | 30.00th=[ 153], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 253], 95.00th=[ 279], | 99.00th=[ 326], 99.50th=[ 347], 99.90th=[ 388], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 80, max= 341, per=24.88%, avg=175.14, stdev=53.91, samples=58 iops : min= 20, max= 85, avg=43.40, stdev=13.57, samples=58 lat (msec) : 20=0.04%, 50=0.20%, 100=8.63%, 250=81.88%, 500=9.26% cpu : usr=0.26%, sys=1.99%, ctx=4736, 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=677KiB/s (693kB/s), 168KiB/s-172KiB/s (172kB/s-176kB/s), io=19.6MiB (20.5MB), run=29472-29661msec WRITE: bw=704KiB/s (721kB/s), 175KiB/s-178KiB/s (179kB/s-182kB/s), io=20.4MiB (21.4MB), run=29472-29661msec 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=182700: Tue Jan 13 07:09:52 2026 read: IOPS=1, BW=61.9MiB/s (64.9MB/s)(40.0MiB/646msec) slat (nsec): min=31651k, max=31651k, avg=31650678.00, stdev= 0.00 clat (nsec): min=599942k, max=599942k, avg=599942160.00, stdev= 0.00 lat (nsec): min=631598k, max=631598k, avg=631597767.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] lat (msec) : 750=100.00% cpu : usr=0.16%, sys=1.86%, ctx=4, 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=61.9MiB/s (64.9MB/s), 61.9MiB/s-61.9MiB/s (64.9MB/s-64.9MB/s), io=40.0MiB (41.9MB), run=646-646msec 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