== sanity test 398c: run fio to test AIO ================= 06:21:08 (1790677268) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.663865 s, 63.2 MB/s osc.lustre-OST0000-osc-ffffa0975824a000.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=145596: Tue Sep 29 06:24:09 2026 write: IOPS=15, BW=60.8KiB/s (62.3kB/s)(10.0MiB/168405msec); 0 zone resets slat (usec): min=28, max=19290, avg=259.69, stdev=889.84 clat (msec): min=178, max=2934, avg=1051.46, stdev=276.98 lat (msec): min=178, max=2937, avg=1051.72, stdev=277.02 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 642], 10.00th=[ 743], 20.00th=[ 844], | 30.00th=[ 902], 40.00th=[ 961], 50.00th=[ 1036], 60.00th=[ 1099], | 70.00th=[ 1167], 80.00th=[ 1267], 90.00th=[ 1385], 95.00th=[ 1502], | 99.00th=[ 1905], 99.50th=[ 1972], 99.90th=[ 2567], 99.95th=[ 2668], | 99.99th=[ 2937] bw ( KiB/s): min= 7, max= 128, per=25.46%, avg=61.86, stdev=30.37, samples=325 iops : min= 1, max= 32, avg=14.93, stdev= 7.61, samples=325 lat (msec) : 250=0.62%, 500=0.08%, 750=9.57%, 1000=34.88%, 2000=54.41% lat (msec) : >=2000=0.43% cpu : usr=0.06%, sys=0.25%, ctx=1696, 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=145597: Tue Sep 29 06:24:09 2026 write: IOPS=15, BW=60.8KiB/s (62.3kB/s)(10.0MiB/168403msec); 0 zone resets slat (usec): min=27, max=18277, avg=288.12, stdev=1064.80 clat (msec): min=387, max=2213, avg=1050.88, stdev=255.71 lat (msec): min=387, max=2213, avg=1051.18, stdev=255.70 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 684], 10.00th=[ 776], 20.00th=[ 844], | 30.00th=[ 911], 40.00th=[ 961], 50.00th=[ 1020], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1250], 90.00th=[ 1368], 95.00th=[ 1502], | 99.00th=[ 1804], 99.50th=[ 1888], 99.90th=[ 2089], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 128, per=25.62%, avg=62.26, stdev=29.63, samples=323 iops : min= 1, max= 32, avg=15.05, stdev= 7.44, samples=323 lat (msec) : 500=0.62%, 750=7.15%, 1000=38.91%, 2000=53.01%, >=2000=0.31% cpu : usr=0.05%, sys=0.25%, ctx=1509, 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=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=145598: Tue Sep 29 06:24:09 2026 write: IOPS=15, BW=60.8KiB/s (62.3kB/s)(10.0MiB/168401msec); 0 zone resets slat (usec): min=27, max=35446, avg=295.68, stdev=1147.49 clat (msec): min=150, max=2147, avg=1051.15, stdev=260.70 lat (msec): min=150, max=2147, avg=1051.45, stdev=260.73 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 676], 10.00th=[ 768], 20.00th=[ 844], | 30.00th=[ 902], 40.00th=[ 953], 50.00th=[ 1020], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1267], 90.00th=[ 1385], 95.00th=[ 1519], | 99.00th=[ 1821], 99.50th=[ 1888], 99.90th=[ 2056], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 7, max= 134, per=25.63%, avg=62.28, stdev=29.86, samples=323 iops : min= 1, max= 33, avg=15.04, stdev= 7.50, samples=323 lat (msec) : 250=0.08%, 500=1.37%, 750=6.60%, 1000=38.98%, 2000=52.81% lat (msec) : >=2000=0.16% cpu : usr=0.05%, sys=0.25%, ctx=1645, 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=145599: Tue Sep 29 06:24:09 2026 write: IOPS=15, BW=60.8KiB/s (62.3kB/s)(10.0MiB/168405msec); 0 zone resets slat (usec): min=30, max=15604, avg=278.10, stdev=843.24 clat (msec): min=105, max=2674, avg=1051.07, stdev=272.08 lat (msec): min=106, max=2674, avg=1051.35, stdev=272.04 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 693], 10.00th=[ 760], 20.00th=[ 844], | 30.00th=[ 911], 40.00th=[ 969], 50.00th=[ 1028], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1234], 90.00th=[ 1385], 95.00th=[ 1485], | 99.00th=[ 1871], 99.50th=[ 1955], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 7, max= 239, per=25.54%, avg=62.07, stdev=31.68, samples=324 iops : min= 1, max= 59, avg=14.99, stdev= 7.96, samples=324 lat (msec) : 250=0.23%, 500=1.41%, 750=7.46%, 1000=35.27%, 2000=55.16% lat (msec) : >=2000=0.47% cpu : usr=0.05%, sys=0.25%, ctx=1804, 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=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=243KiB/s (249kB/s), 60.8KiB/s-60.8KiB/s (62.3kB/s-62.3kB/s), io=40.0MiB (41.9MB), run=168401-168405msec 5% of I/O are 1-page (PAGE_SIZE=4096), max 50% 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=145634: Tue Sep 29 06:26:23 2026 read: IOPS=10, BW=40.5KiB/s (41.4kB/s)(5048KiB/124769msec) slat (msec): min=3, max=566, avg=17.99, stdev=22.45 clat (msec): min=14, max=1088, avg=476.41, stdev=132.96 lat (msec): min=25, max=1330, avg=494.41, stdev=136.34 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 296], 10.00th=[ 334], 20.00th=[ 376], | 30.00th=[ 409], 40.00th=[ 439], 50.00th=[ 472], 60.00th=[ 502], | 70.00th=[ 531], 80.00th=[ 575], 90.00th=[ 651], 95.00th=[ 718], | 99.00th=[ 802], 99.50th=[ 818], 99.90th=[ 902], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 142, per=25.46%, avg=40.74, stdev=20.75, samples=242 iops : min= 1, max= 35, avg= 9.62, stdev= 5.20, samples=242 write: IOPS=10, BW=41.6KiB/s (42.6kB/s)(5192KiB/124769msec); 0 zone resets slat (usec): min=32, max=17393, avg=340.91, stdev=1104.78 clat (msec): min=74, max=1972, avg=1041.90, stdev=280.48 lat (msec): min=79, max=1972, avg=1042.24, stdev=280.48 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 625], 10.00th=[ 709], 20.00th=[ 818], | 30.00th=[ 885], 40.00th=[ 961], 50.00th=[ 1036], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1401], 95.00th=[ 1502], | 99.00th=[ 1737], 99.50th=[ 1804], 99.90th=[ 1921], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 126, per=24.73%, avg=41.31, stdev=18.99, samples=245 iops : min= 1, max= 31, avg= 9.76, stdev= 4.76, samples=245 lat (msec) : 20=0.12%, 50=0.27%, 100=0.47%, 250=1.17%, 500=28.40% lat (msec) : 750=24.10%, 1000=17.23%, 2000=28.24% cpu : usr=0.11%, sys=0.62%, ctx=4157, 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=145635: Tue Sep 29 06:26:23 2026 read: IOPS=10, BW=40.1KiB/s (41.1kB/s)(4976KiB/124037msec) slat (usec): min=37, max=65282, avg=16533.89, stdev=9399.70 clat (msec): min=35, max=877, avg=480.54, stdev=122.41 lat (msec): min=41, max=942, avg=497.08, stdev=123.87 clat percentiles (msec): | 1.00th=[ 247], 5.00th=[ 309], 10.00th=[ 342], 20.00th=[ 380], | 30.00th=[ 409], 40.00th=[ 439], 50.00th=[ 464], 60.00th=[ 498], | 70.00th=[ 531], 80.00th=[ 575], 90.00th=[ 651], 95.00th=[ 718], | 99.00th=[ 827], 99.50th=[ 835], 99.90th=[ 869], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 7, max= 95, per=24.83%, avg=39.73, stdev=18.62, samples=244 iops : min= 1, max= 23, avg= 9.37, stdev= 4.70, samples=244 write: IOPS=10, BW=42.4KiB/s (43.5kB/s)(5264KiB/124037msec); 0 zone resets slat (usec): min=34, max=25512, avg=372.78, stdev=1305.16 clat (msec): min=181, max=1918, avg=1036.94, stdev=277.71 lat (msec): min=181, max=1919, avg=1037.32, stdev=277.68 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 592], 10.00th=[ 701], 20.00th=[ 810], | 30.00th=[ 877], 40.00th=[ 953], 50.00th=[ 1028], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1267], 90.00th=[ 1401], 95.00th=[ 1519], | 99.00th=[ 1670], 99.50th=[ 1770], 99.90th=[ 1888], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 7, max= 119, per=25.07%, avg=41.87, stdev=18.96, samples=245 iops : min= 1, max= 29, avg= 9.91, stdev= 4.74, samples=245 lat (msec) : 50=0.04%, 100=0.08%, 250=0.78%, 500=29.57%, 750=23.48% lat (msec) : 1000=18.59%, 2000=27.46% cpu : usr=0.11%, sys=0.72%, ctx=4209, 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=145636: Tue Sep 29 06:26:23 2026 read: IOPS=10, BW=40.1KiB/s (41.0kB/s)(4984KiB/124373msec) slat (usec): min=2967, max=72042, avg=16892.96, stdev=9131.77 clat (msec): min=11, max=881, avg=485.02, stdev=127.08 lat (msec): min=18, max=909, avg=501.93, stdev=128.37 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 317], 10.00th=[ 342], 20.00th=[ 380], | 30.00th=[ 409], 40.00th=[ 439], 50.00th=[ 468], 60.00th=[ 506], | 70.00th=[ 542], 80.00th=[ 592], 90.00th=[ 659], 95.00th=[ 718], | 99.00th=[ 827], 99.50th=[ 835], 99.90th=[ 877], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 111, per=24.84%, avg=39.74, stdev=18.73, samples=245 iops : min= 1, max= 27, avg= 9.37, stdev= 4.71, samples=245 write: IOPS=10, BW=42.3KiB/s (43.3kB/s)(5256KiB/124373msec); 0 zone resets slat (usec): min=32, max=28629, avg=400.80, stdev=1424.34 clat (msec): min=200, max=2049, avg=1035.93, stdev=272.22 lat (msec): min=201, max=2050, avg=1036.34, stdev=272.28 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 600], 10.00th=[ 693], 20.00th=[ 802], | 30.00th=[ 877], 40.00th=[ 953], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1267], 90.00th=[ 1368], 95.00th=[ 1485], | 99.00th=[ 1670], 99.50th=[ 1737], 99.90th=[ 1871], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 7, max= 96, per=24.88%, avg=41.54, stdev=19.16, samples=246 iops : min= 1, max= 24, avg= 9.82, stdev= 4.79, samples=246 lat (msec) : 20=0.04%, 50=0.12%, 100=0.12%, 250=0.43%, 500=28.48% lat (msec) : 750=25.12%, 1000=17.50%, 2000=28.16%, >=2000=0.04% cpu : usr=0.11%, sys=0.64%, ctx=4031, 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=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=145637: Tue Sep 29 06:26:23 2026 read: IOPS=10, BW=40.7KiB/s (41.7kB/s)(5060KiB/124227msec) slat (usec): min=3627, max=60885, avg=16551.78, stdev=9317.47 clat (msec): min=23, max=868, avg=480.20, stdev=122.75 lat (msec): min=37, max=879, avg=496.77, stdev=124.21 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 309], 10.00th=[ 338], 20.00th=[ 376], | 30.00th=[ 409], 40.00th=[ 435], 50.00th=[ 464], 60.00th=[ 502], | 70.00th=[ 535], 80.00th=[ 584], 90.00th=[ 651], 95.00th=[ 701], | 99.00th=[ 793], 99.50th=[ 827], 99.90th=[ 860], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7, max= 103, per=25.43%, avg=40.69, stdev=19.50, samples=243 iops : min= 1, max= 25, avg= 9.61, stdev= 4.88, samples=243 write: IOPS=10, BW=41.7KiB/s (42.7kB/s)(5180KiB/124227msec); 0 zone resets slat (usec): min=32, max=29899, avg=311.55, stdev=1148.31 clat (msec): min=204, max=1879, avg=1046.59, stdev=272.26 lat (msec): min=204, max=1879, avg=1046.90, stdev=272.30 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 634], 10.00th=[ 693], 20.00th=[ 818], | 30.00th=[ 894], 40.00th=[ 969], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1267], 90.00th=[ 1401], 95.00th=[ 1502], | 99.00th=[ 1687], 99.50th=[ 1737], 99.90th=[ 1854], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 7, max= 95, per=24.62%, avg=41.12, stdev=18.22, samples=245 iops : min= 1, max= 23, avg= 9.71, stdev= 4.60, samples=245 lat (msec) : 50=0.12%, 250=0.62%, 500=29.53%, 750=24.92%, 1000=16.52% lat (msec) : 2000=28.28% cpu : usr=0.10%, sys=0.64%, ctx=4048, 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=161KiB/s (165kB/s), 40.1KiB/s-40.7KiB/s (41.0kB/s-41.7kB/s), io=19.6MiB (20.5MB), run=124037-124769msec WRITE: bw=167KiB/s (171kB/s), 41.6KiB/s-42.4KiB/s (42.6kB/s-43.5kB/s), io=20.4MiB (21.4MB), run=124037-124769msec 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=145661: Tue Sep 29 06:26:34 2026 read: IOPS=1, BW=60.1MiB/s (62.0MB/s)(40.0MiB/666msec) slat (nsec): min=43007k, max=43007k, avg=43006799.00, stdev= 0.00 clat (nsec): min=596597k, max=596597k, avg=596597094.00, stdev= 0.00 lat (nsec): min=639609k, max=639609k, avg=639609120.00, 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=0.00%, sys=2.26%, ctx=7, 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=60.1MiB/s (62.0MB/s), 60.1MiB/s-60.1MiB/s (62.0MB/s-62.0MB/s), io=40.0MiB (41.9MB), run=666-666msec 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