== sanity test 398c: run fio to test AIO ================= 08:06:52 (1775045212) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.138807 s, 302 MB/s osc.lustre-OST0000-osc-ffff9ff3ddd71800.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=149459: Wed Apr 1 08:07:30 2026 write: IOPS=74, BW=296KiB/s (304kB/s)(10.0MiB/34545msec); 0 zone resets slat (usec): min=37, max=962, avg=201.98, stdev=96.47 clat (msec): min=30, max=563, avg=215.56, stdev=49.61 lat (msec): min=30, max=563, avg=215.76, stdev=49.63 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 140], 10.00th=[ 161], 20.00th=[ 178], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 228], | 70.00th=[ 241], 80.00th=[ 253], 90.00th=[ 271], 95.00th=[ 292], | 99.00th=[ 338], 99.50th=[ 368], 99.90th=[ 502], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 184, max= 617, per=25.07%, avg=296.32, stdev=58.94, samples=68 iops : min= 46, max= 154, avg=74.01, stdev=14.75, samples=68 lat (msec) : 50=0.62%, 100=0.62%, 250=75.70%, 500=22.93%, 750=0.12% cpu : usr=0.10%, sys=1.30%, ctx=2651, 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=149460: Wed Apr 1 08:07:30 2026 write: IOPS=73, BW=296KiB/s (303kB/s)(10.0MiB/34632msec); 0 zone resets slat (usec): min=35, max=1126, avg=200.41, stdev=98.83 clat (msec): min=45, max=531, avg=216.06, stdev=48.39 lat (msec): min=45, max=532, avg=216.27, stdev=48.40 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 140], 10.00th=[ 161], 20.00th=[ 180], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 230], | 70.00th=[ 241], 80.00th=[ 253], 90.00th=[ 271], 95.00th=[ 292], | 99.00th=[ 342], 99.50th=[ 372], 99.90th=[ 443], 99.95th=[ 468], | 99.99th=[ 531] bw ( KiB/s): min= 184, max= 617, per=24.99%, avg=295.40, stdev=57.49, samples=68 iops : min= 46, max= 154, avg=73.78, stdev=14.38, samples=68 lat (msec) : 50=0.62%, 250=77.19%, 500=22.15%, 750=0.04% cpu : usr=0.11%, sys=1.27%, ctx=2521, 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=149461: Wed Apr 1 08:07:30 2026 write: IOPS=73, BW=296KiB/s (303kB/s)(10.0MiB/34632msec); 0 zone resets slat (usec): min=35, max=1957, avg=202.96, stdev=104.14 clat (msec): min=32, max=406, avg=216.05, stdev=46.42 lat (msec): min=32, max=407, avg=216.26, stdev=46.43 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 138], 10.00th=[ 161], 20.00th=[ 180], | 30.00th=[ 194], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 230], | 70.00th=[ 241], 80.00th=[ 255], 90.00th=[ 271], 95.00th=[ 288], | 99.00th=[ 330], 99.50th=[ 355], 99.90th=[ 388], 99.95th=[ 393], | 99.99th=[ 405] bw ( KiB/s): min= 208, max= 514, per=24.96%, avg=295.06, stdev=53.01, samples=68 iops : min= 52, max= 128, avg=73.69, stdev=13.26, samples=68 lat (msec) : 50=0.04%, 100=1.37%, 250=74.92%, 500=23.67% cpu : usr=0.14%, sys=1.22%, ctx=2766, 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=149462: Wed Apr 1 08:07:30 2026 write: IOPS=73, BW=296KiB/s (303kB/s)(10.0MiB/34607msec); 0 zone resets slat (usec): min=36, max=1666, avg=217.16, stdev=104.28 clat (msec): min=12, max=609, avg=215.83, stdev=49.72 lat (msec): min=12, max=609, avg=216.05, stdev=49.73 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 138], 10.00th=[ 161], 20.00th=[ 180], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 230], | 70.00th=[ 241], 80.00th=[ 253], 90.00th=[ 271], 95.00th=[ 288], | 99.00th=[ 334], 99.50th=[ 372], 99.90th=[ 592], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 200, max= 565, per=25.05%, avg=296.04, stdev=56.09, samples=68 iops : min= 50, max= 141, avg=73.94, stdev=14.04, samples=68 lat (msec) : 20=0.08%, 50=0.20%, 100=1.33%, 250=75.62%, 500=22.62% lat (msec) : 750=0.16% cpu : usr=0.15%, sys=1.31%, ctx=2764, 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=1183KiB/s (1211kB/s), 296KiB/s-296KiB/s (303kB/s-304kB/s), io=40.0MiB (41.9MB), run=34545-34632msec 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=149476: Wed Apr 1 08:07:55 2026 read: IOPS=57, BW=229KiB/s (234kB/s)(5048KiB/22077msec) slat (usec): min=1151, max=9459, avg=2642.60, stdev=1005.01 clat (msec): min=2, max=243, avg=87.79, stdev=19.69 lat (msec): min=5, max=247, avg=90.44, stdev=19.86 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 62], 10.00th=[ 67], 20.00th=[ 73], | 30.00th=[ 79], 40.00th=[ 83], 50.00th=[ 88], 60.00th=[ 91], | 70.00th=[ 96], 80.00th=[ 102], 90.00th=[ 110], 95.00th=[ 117], | 99.00th=[ 136], 99.50th=[ 144], 99.90th=[ 241], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 144, max= 320, per=25.38%, avg=229.91, stdev=46.30, samples=43 iops : min= 36, max= 80, avg=57.40, stdev=11.58, samples=43 write: IOPS=58, BW=235KiB/s (241kB/s)(5192KiB/22077msec); 0 zone resets slat (usec): min=56, max=2872, avg=192.01, stdev=125.46 clat (msec): min=77, max=351, avg=183.38, stdev=43.76 lat (msec): min=77, max=351, avg=183.58, stdev=43.77 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 120], 10.00th=[ 129], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 218], 90.00th=[ 243], 95.00th=[ 268], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 152, max= 320, per=24.99%, avg=235.63, stdev=40.07, samples=43 iops : min= 38, max= 80, avg=58.84, stdev=10.05, samples=43 lat (msec) : 4=0.08%, 20=0.16%, 50=0.27%, 100=38.71%, 250=56.48% lat (msec) : 500=4.30% cpu : usr=0.18%, sys=2.16%, ctx=4826, 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=149477: Wed Apr 1 08:07:55 2026 read: IOPS=56, BW=225KiB/s (230kB/s)(4976KiB/22145msec) slat (usec): min=1071, max=11498, avg=2674.21, stdev=1113.32 clat (msec): min=3, max=152, avg=87.24, stdev=18.26 lat (msec): min=5, max=157, avg=89.92, stdev=18.47 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 60], 10.00th=[ 66], 20.00th=[ 73], | 30.00th=[ 78], 40.00th=[ 83], 50.00th=[ 87], 60.00th=[ 91], | 70.00th=[ 96], 80.00th=[ 102], 90.00th=[ 112], 95.00th=[ 117], | 99.00th=[ 136], 99.50th=[ 142], 99.90th=[ 150], 99.95th=[ 153], | 99.99th=[ 153] bw ( KiB/s): min= 120, max= 320, per=24.84%, avg=225.09, stdev=47.23, samples=43 iops : min= 30, max= 80, avg=56.21, stdev=11.82, samples=43 write: IOPS=59, BW=238KiB/s (243kB/s)(5264KiB/22145msec); 0 zone resets slat (usec): min=52, max=1193, avg=190.61, stdev=95.04 clat (msec): min=52, max=322, avg=183.61, stdev=43.45 lat (msec): min=52, max=322, avg=183.81, stdev=43.45 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 117], 10.00th=[ 131], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 218], 90.00th=[ 243], 95.00th=[ 264], | 99.00th=[ 288], 99.50th=[ 296], 99.90th=[ 309], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 136, max= 320, per=25.09%, avg=236.60, stdev=38.25, samples=43 iops : min= 34, max= 80, avg=59.07, stdev= 9.57, samples=43 lat (msec) : 4=0.04%, 10=0.08%, 20=0.12%, 50=0.31%, 100=38.36% lat (msec) : 250=56.95%, 500=4.14% cpu : usr=0.20%, sys=2.10%, ctx=4832, 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=149478: Wed Apr 1 08:07:55 2026 read: IOPS=56, BW=225KiB/s (230kB/s)(4984KiB/22145msec) slat (usec): min=37, max=10447, avg=2643.47, stdev=1117.02 clat (msec): min=3, max=219, avg=87.36, stdev=18.72 lat (msec): min=6, max=222, avg=90.00, stdev=18.95 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 62], 10.00th=[ 67], 20.00th=[ 73], | 30.00th=[ 78], 40.00th=[ 83], 50.00th=[ 87], 60.00th=[ 91], | 70.00th=[ 95], 80.00th=[ 102], 90.00th=[ 111], 95.00th=[ 117], | 99.00th=[ 136], 99.50th=[ 140], 99.90th=[ 218], 99.95th=[ 220], | 99.99th=[ 220] bw ( KiB/s): min= 103, max= 360, per=25.02%, avg=226.67, stdev=62.85, samples=43 iops : min= 25, max= 90, avg=56.60, stdev=15.75, samples=43 write: IOPS=59, BW=237KiB/s (243kB/s)(5256KiB/22145msec); 0 zone resets slat (usec): min=34, max=2116, avg=188.45, stdev=113.84 clat (msec): min=31, max=314, avg=183.90, stdev=44.09 lat (msec): min=32, max=315, avg=184.09, stdev=44.09 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 121], 10.00th=[ 129], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 243], 95.00th=[ 262], | 99.00th=[ 288], 99.50th=[ 296], 99.90th=[ 300], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 136, max= 312, per=25.11%, avg=236.81, stdev=41.41, samples=43 iops : min= 34, max= 78, avg=59.14, stdev=10.32, samples=43 lat (msec) : 4=0.04%, 10=0.04%, 20=0.12%, 50=1.05%, 100=37.50% lat (msec) : 250=56.95%, 500=4.30% cpu : usr=0.23%, sys=2.05%, ctx=4673, 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=149479: Wed Apr 1 08:07:55 2026 read: IOPS=57, BW=229KiB/s (234kB/s)(5060KiB/22128msec) slat (usec): min=1059, max=9889, avg=2711.06, stdev=1059.39 clat (msec): min=5, max=202, avg=87.31, stdev=19.47 lat (msec): min=8, max=205, avg=90.02, stdev=19.62 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 60], 10.00th=[ 66], 20.00th=[ 72], | 30.00th=[ 78], 40.00th=[ 83], 50.00th=[ 87], 60.00th=[ 91], | 70.00th=[ 96], 80.00th=[ 102], 90.00th=[ 112], 95.00th=[ 118], | 99.00th=[ 136], 99.50th=[ 142], 99.90th=[ 201], 99.95th=[ 203], | 99.99th=[ 203] bw ( KiB/s): min= 159, max= 344, per=25.45%, avg=230.60, stdev=47.07, samples=43 iops : min= 39, max= 86, avg=57.58, stdev=11.79, samples=43 write: IOPS=58, BW=234KiB/s (240kB/s)(5180KiB/22128msec); 0 zone resets slat (usec): min=55, max=2378, avg=190.60, stdev=110.82 clat (msec): min=36, max=383, avg=184.76, stdev=45.05 lat (msec): min=36, max=384, avg=184.95, stdev=45.05 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 117], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 220], 90.00th=[ 245], 95.00th=[ 266], | 99.00th=[ 296], 99.50th=[ 317], 99.90th=[ 355], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 160, max= 344, per=24.88%, avg=234.58, stdev=42.10, samples=43 iops : min= 40, max= 86, avg=58.58, stdev=10.50, samples=43 lat (msec) : 10=0.12%, 20=0.23%, 50=0.59%, 100=38.44%, 250=56.33% lat (msec) : 500=4.30% cpu : usr=0.20%, sys=2.13%, ctx=4714, 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=906KiB/s (928kB/s), 225KiB/s-229KiB/s (230kB/s-234kB/s), io=19.6MiB (20.5MB), run=22077-22145msec WRITE: bw=943KiB/s (966kB/s), 234KiB/s-238KiB/s (240kB/s-243kB/s), io=20.4MiB (21.4MB), run=22077-22145msec 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=149486: Wed Apr 1 08:07:59 2026 read: IOPS=9, BW=360MiB/s (378MB/s)(40.0MiB/111msec) slat (nsec): min=11665k, max=11665k, avg=11664627.00, stdev= 0.00 clat (nsec): min=94725k, max=94725k, avg=94725196.00, stdev= 0.00 lat (nsec): min=106394k, max=106394k, avg=106394023.00, stdev= 0.00 clat percentiles (usec): | 1.00th=[94897], 5.00th=[94897], 10.00th=[94897], 20.00th=[94897], | 30.00th=[94897], 40.00th=[94897], 50.00th=[94897], 60.00th=[94897], | 70.00th=[94897], 80.00th=[94897], 90.00th=[94897], 95.00th=[94897], | 99.00th=[94897], 99.50th=[94897], 99.90th=[94897], 99.95th=[94897], | 99.99th=[94897] lat (msec) : 100=100.00% cpu : usr=0.00%, sys=9.09%, ctx=41, 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=360MiB/s (378MB/s), 360MiB/s-360MiB/s (378MB/s-378MB/s), io=40.0MiB (41.9MB), run=111-111msec 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