== sanity test 398c: run fio to test AIO ================= 05:38:28 (1786354708) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.160131 s, 262 MB/s osc.lustre-OST0000-osc-ffff8f36d4859800.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=150645: Mon Aug 10 05:39:17 2026 write: IOPS=57, BW=228KiB/s (234kB/s)(10.0MiB/44906msec); 0 zone resets slat (usec): min=38, max=3482, avg=222.10, stdev=197.22 clat (msec): min=78, max=555, avg=280.08, stdev=70.29 lat (msec): min=79, max=555, avg=280.30, stdev=70.29 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 178], 10.00th=[ 205], 20.00th=[ 228], | 30.00th=[ 245], 40.00th=[ 262], 50.00th=[ 279], 60.00th=[ 292], | 70.00th=[ 309], 80.00th=[ 326], 90.00th=[ 368], 95.00th=[ 414], | 99.00th=[ 472], 99.50th=[ 489], 99.90th=[ 518], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 136, max= 417, per=24.90%, avg=227.04, stdev=50.74, samples=89 iops : min= 34, max= 104, avg=56.58, stdev=12.67, samples=89 lat (msec) : 100=0.66%, 250=33.36%, 500=65.59%, 750=0.39% cpu : usr=0.14%, sys=0.93%, ctx=2861, majf=0, minf=8 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=150646: Mon Aug 10 05:39:17 2026 write: IOPS=57, BW=228KiB/s (234kB/s)(10.0MiB/44864msec); 0 zone resets slat (usec): min=36, max=5117, avg=232.76, stdev=215.60 clat (msec): min=78, max=538, avg=279.84, stdev=70.37 lat (msec): min=79, max=538, avg=280.08, stdev=70.38 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 174], 10.00th=[ 205], 20.00th=[ 228], | 30.00th=[ 245], 40.00th=[ 262], 50.00th=[ 275], 60.00th=[ 292], | 70.00th=[ 309], 80.00th=[ 330], 90.00th=[ 372], 95.00th=[ 409], | 99.00th=[ 472], 99.50th=[ 506], 99.90th=[ 514], 99.95th=[ 523], | 99.99th=[ 542] bw ( KiB/s): min= 136, max= 416, per=24.93%, avg=227.38, stdev=48.63, samples=89 iops : min= 34, max= 104, avg=56.67, stdev=12.18, samples=89 lat (msec) : 100=0.12%, 250=33.75%, 500=65.59%, 750=0.55% cpu : usr=0.14%, sys=1.00%, ctx=2936, 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=150647: Mon Aug 10 05:39:17 2026 write: IOPS=57, BW=229KiB/s (234kB/s)(10.0MiB/44734msec); 0 zone resets slat (usec): min=35, max=4879, avg=227.49, stdev=219.50 clat (msec): min=51, max=559, avg=279.21, stdev=73.23 lat (msec): min=51, max=559, avg=279.44, stdev=73.23 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 163], 10.00th=[ 201], 20.00th=[ 226], | 30.00th=[ 245], 40.00th=[ 259], 50.00th=[ 275], 60.00th=[ 292], | 70.00th=[ 309], 80.00th=[ 334], 90.00th=[ 376], 95.00th=[ 409], | 99.00th=[ 485], 99.50th=[ 510], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 127, max= 519, per=24.90%, avg=227.10, stdev=57.46, samples=89 iops : min= 31, max= 129, avg=56.60, stdev=14.34, samples=89 lat (msec) : 100=0.62%, 250=33.20%, 500=65.55%, 750=0.62% cpu : usr=0.13%, sys=0.99%, ctx=2805, 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=150648: Mon Aug 10 05:39:17 2026 write: IOPS=57, BW=228KiB/s (234kB/s)(10.0MiB/44835msec); 0 zone resets slat (usec): min=44, max=5146, avg=239.16, stdev=247.05 clat (msec): min=52, max=576, avg=279.72, stdev=71.94 lat (msec): min=52, max=576, avg=279.96, stdev=71.95 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 174], 10.00th=[ 203], 20.00th=[ 226], | 30.00th=[ 245], 40.00th=[ 259], 50.00th=[ 275], 60.00th=[ 296], | 70.00th=[ 309], 80.00th=[ 330], 90.00th=[ 368], 95.00th=[ 409], | 99.00th=[ 481], 99.50th=[ 506], 99.90th=[ 535], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 136, max= 461, per=24.92%, avg=227.27, stdev=51.39, samples=89 iops : min= 34, max= 115, avg=56.64, stdev=12.84, samples=89 lat (msec) : 100=0.90%, 250=32.66%, 500=65.86%, 750=0.59% cpu : usr=0.14%, sys=1.02%, ctx=3069, 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 Run status group 0 (all jobs): WRITE: bw=912KiB/s (934kB/s), 228KiB/s-229KiB/s (234kB/s-234kB/s), io=40.0MiB (41.9MB), run=44734-44906msec 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=150664: Mon Aug 10 05:39:59 2026 read: IOPS=32, BW=130KiB/s (133kB/s)(5048KiB/38928msec) slat (usec): min=53, max=22450, avg=5096.36, stdev=2534.13 clat (msec): min=5, max=288, avg=155.79, stdev=38.79 lat (msec): min=7, max=305, avg=160.89, stdev=39.39 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 102], 10.00th=[ 112], 20.00th=[ 126], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 153], 60.00th=[ 163], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 205], 95.00th=[ 228], | 99.00th=[ 271], 99.50th=[ 279], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 40, max= 207, per=25.27%, avg=129.61, stdev=38.33, samples=77 iops : min= 10, max= 51, avg=32.10, stdev= 9.58, samples=77 write: IOPS=33, BW=133KiB/s (137kB/s)(5192KiB/38928msec); 0 zone resets slat (usec): min=42, max=7622, avg=245.01, stdev=396.81 clat (msec): min=33, max=609, avg=322.83, stdev=88.56 lat (msec): min=34, max=609, avg=323.08, stdev=88.54 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 194], 10.00th=[ 213], 20.00th=[ 251], | 30.00th=[ 275], 40.00th=[ 296], 50.00th=[ 313], 60.00th=[ 334], | 70.00th=[ 359], 80.00th=[ 401], 90.00th=[ 451], 95.00th=[ 485], | 99.00th=[ 527], 99.50th=[ 567], 99.90th=[ 600], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 63, max= 232, per=24.87%, avg=132.82, stdev=34.41, samples=77 iops : min= 15, max= 58, avg=32.90, stdev= 8.65, samples=77 lat (msec) : 10=0.04%, 20=0.08%, 50=0.43%, 100=1.91%, 250=55.70% lat (msec) : 500=40.08%, 750=1.76% cpu : usr=0.14%, sys=1.38%, 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=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=150665: Mon Aug 10 05:39:59 2026 read: IOPS=31, BW=127KiB/s (130kB/s)(4976KiB/39089msec) slat (usec): min=1455, max=26260, avg=5151.62, stdev=2505.87 clat (msec): min=11, max=364, avg=154.09, stdev=39.68 lat (msec): min=15, max=370, avg=159.25, stdev=40.13 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 102], 10.00th=[ 111], 20.00th=[ 124], | 30.00th=[ 134], 40.00th=[ 144], 50.00th=[ 150], 60.00th=[ 159], | 70.00th=[ 169], 80.00th=[ 182], 90.00th=[ 205], 95.00th=[ 228], | 99.00th=[ 257], 99.50th=[ 275], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 32, max= 199, per=24.71%, avg=126.78, stdev=40.77, samples=77 iops : min= 8, max= 49, avg=31.39, stdev=10.24, samples=77 write: IOPS=33, BW=135KiB/s (138kB/s)(5264KiB/39089msec); 0 zone resets slat (usec): min=53, max=4055, avg=231.94, stdev=282.52 clat (msec): min=55, max=600, avg=323.82, stdev=88.89 lat (msec): min=55, max=600, avg=324.06, stdev=88.91 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 194], 10.00th=[ 218], 20.00th=[ 253], | 30.00th=[ 275], 40.00th=[ 296], 50.00th=[ 313], 60.00th=[ 334], | 70.00th=[ 359], 80.00th=[ 405], 90.00th=[ 456], 95.00th=[ 485], | 99.00th=[ 542], 99.50th=[ 558], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 63, max= 256, per=25.13%, avg=134.18, stdev=37.07, samples=77 iops : min= 15, max= 64, avg=33.25, stdev= 9.29, samples=77 lat (msec) : 20=0.12%, 50=0.39%, 100=2.27%, 250=54.61%, 500=40.86% lat (msec) : 750=1.76% cpu : usr=0.15%, sys=1.39%, ctx=5096, 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=150666: Mon Aug 10 05:39:59 2026 read: IOPS=31, BW=127KiB/s (130kB/s)(4984KiB/39109msec) slat (usec): min=1430, max=26379, avg=5175.90, stdev=2492.21 clat (msec): min=4, max=298, avg=154.72, stdev=37.43 lat (msec): min=8, max=304, avg=159.90, stdev=37.98 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 102], 10.00th=[ 112], 20.00th=[ 125], | 30.00th=[ 133], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 161], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 205], 95.00th=[ 222], | 99.00th=[ 253], 99.50th=[ 271], 99.90th=[ 292], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 39, max= 263, per=24.73%, avg=126.86, stdev=43.17, samples=77 iops : min= 9, max= 65, avg=31.42, stdev=10.81, samples=77 write: IOPS=33, BW=134KiB/s (138kB/s)(5256KiB/39109msec); 0 zone resets slat (usec): min=45, max=4667, avg=250.00, stdev=310.99 clat (msec): min=48, max=598, avg=323.41, stdev=88.92 lat (msec): min=48, max=599, avg=323.66, stdev=88.92 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 186], 10.00th=[ 218], 20.00th=[ 253], | 30.00th=[ 275], 40.00th=[ 296], 50.00th=[ 317], 60.00th=[ 338], | 70.00th=[ 359], 80.00th=[ 401], 90.00th=[ 451], 95.00th=[ 489], | 99.00th=[ 535], 99.50th=[ 558], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 80, max= 208, per=24.80%, avg=132.43, stdev=28.52, samples=77 iops : min= 20, max= 52, avg=32.81, stdev= 7.18, samples=77 lat (msec) : 10=0.08%, 20=0.08%, 50=0.27%, 100=1.91%, 250=55.70% lat (msec) : 500=40.31%, 750=1.64% cpu : usr=0.15%, sys=1.40%, ctx=5202, 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=150667: Mon Aug 10 05:39:59 2026 read: IOPS=32, BW=130KiB/s (133kB/s)(5060KiB/38927msec) slat (usec): min=1380, max=17913, avg=5107.16, stdev=2415.39 clat (msec): min=5, max=295, avg=154.66, stdev=39.09 lat (msec): min=10, max=304, avg=159.77, stdev=39.53 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 101], 10.00th=[ 112], 20.00th=[ 125], | 30.00th=[ 136], 40.00th=[ 144], 50.00th=[ 155], 60.00th=[ 161], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 203], 95.00th=[ 226], | 99.00th=[ 259], 99.50th=[ 275], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 39, max= 232, per=25.38%, avg=130.21, stdev=39.02, samples=77 iops : min= 9, max= 58, avg=32.25, stdev= 9.82, samples=77 write: IOPS=33, BW=133KiB/s (136kB/s)(5180KiB/38927msec); 0 zone resets slat (usec): min=36, max=6340, avg=236.38, stdev=356.91 clat (msec): min=131, max=598, avg=323.59, stdev=86.08 lat (msec): min=131, max=598, avg=323.83, stdev=86.09 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 199], 10.00th=[ 220], 20.00th=[ 253], | 30.00th=[ 275], 40.00th=[ 296], 50.00th=[ 313], 60.00th=[ 334], | 70.00th=[ 359], 80.00th=[ 393], 90.00th=[ 451], 95.00th=[ 489], | 99.00th=[ 542], 99.50th=[ 567], 99.90th=[ 592], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 64, max= 216, per=24.77%, avg=132.26, stdev=31.59, samples=77 iops : min= 16, max= 54, avg=32.77, stdev= 7.94, samples=77 lat (msec) : 10=0.16%, 20=0.04%, 50=0.35%, 100=1.88%, 250=56.09% lat (msec) : 500=39.65%, 750=1.84% cpu : usr=0.14%, sys=1.42%, ctx=5017, 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=513KiB/s (525kB/s), 127KiB/s-130KiB/s (130kB/s-133kB/s), io=19.6MiB (20.5MB), run=38927-39109msec WRITE: bw=534KiB/s (547kB/s), 133KiB/s-135KiB/s (136kB/s-138kB/s), io=20.4MiB (21.4MB), run=38927-39109msec 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=150676: Mon Aug 10 05:40:03 2026 read: IOPS=6, BW=268MiB/s (281MB/s)(40.0MiB/149msec) slat (nsec): min=13026k, max=13026k, avg=13026215.00, stdev= 0.00 clat (nsec): min=128797k, max=128797k, avg=128796675.00, stdev= 0.00 lat (nsec): min=141827k, max=141827k, avg=141827077.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 129], | 30.00th=[ 129], 40.00th=[ 129], 50.00th=[ 129], 60.00th=[ 129], | 70.00th=[ 129], 80.00th=[ 129], 90.00th=[ 129], 95.00th=[ 129], | 99.00th=[ 129], 99.50th=[ 129], 99.90th=[ 129], 99.95th=[ 129], | 99.99th=[ 129] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=7.43%, 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=268MiB/s (281MB/s), 268MiB/s-268MiB/s (281MB/s-281MB/s), io=40.0MiB (41.9MB), run=149-149msec 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