== sanity test 398c: run fio to test AIO ================= 17:37:54 (1776202674) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.400005 s, 105 MB/s osc.lustre-OST0000-osc-ffff961f4679c800.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=123140: Tue Apr 14 17:40:21 2026 write: IOPS=18, BW=73.5KiB/s (75.2kB/s)(10.0MiB/139366msec); 0 zone resets slat (usec): min=20, max=12932, avg=203.19, stdev=752.50 clat (msec): min=194, max=2231, avg=870.26, stdev=275.02 lat (msec): min=194, max=2231, avg=870.47, stdev=274.99 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 510], 10.00th=[ 584], 20.00th=[ 667], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 885], | 70.00th=[ 953], 80.00th=[ 1020], 90.00th=[ 1183], 95.00th=[ 1401], | 99.00th=[ 1838], 99.50th=[ 1938], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 256, per=24.96%, avg=73.12, stdev=29.40, samples=276 iops : min= 1, max= 64, avg=17.86, stdev= 7.39, samples=276 lat (msec) : 250=0.62%, 500=3.91%, 750=26.68%, 1000=46.21%, 2000=22.23% lat (msec) : >=2000=0.35% cpu : usr=0.05%, sys=0.26%, ctx=1674, 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=123141: Tue Apr 14 17:40:21 2026 write: IOPS=18, BW=73.5KiB/s (75.3kB/s)(10.0MiB/139288msec); 0 zone resets slat (usec): min=20, max=25282, avg=215.36, stdev=1051.53 clat (msec): min=146, max=2217, avg=869.92, stdev=276.26 lat (msec): min=146, max=2217, avg=870.14, stdev=276.25 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 498], 10.00th=[ 584], 20.00th=[ 684], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 894], | 70.00th=[ 953], 80.00th=[ 1011], 90.00th=[ 1200], 95.00th=[ 1368], | 99.00th=[ 1871], 99.50th=[ 1989], 99.90th=[ 2198], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 256, per=25.40%, avg=74.44, stdev=33.07, samples=271 iops : min= 1, max= 64, avg=18.19, stdev= 8.31, samples=271 lat (msec) : 250=0.66%, 500=4.49%, 750=25.70%, 1000=47.19%, 2000=21.48% lat (msec) : >=2000=0.47% cpu : usr=0.04%, sys=0.24%, ctx=1492, 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=123142: Tue Apr 14 17:40:21 2026 write: IOPS=18, BW=73.4KiB/s (75.2kB/s)(10.0MiB/139499msec); 0 zone resets slat (usec): min=20, max=18234, avg=199.66, stdev=834.02 clat (msec): min=193, max=2140, avg=870.98, stdev=274.06 lat (msec): min=193, max=2140, avg=871.19, stdev=274.06 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 506], 10.00th=[ 584], 20.00th=[ 676], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 894], | 70.00th=[ 944], 80.00th=[ 1020], 90.00th=[ 1200], 95.00th=[ 1385], | 99.00th=[ 1838], 99.50th=[ 1921], 99.90th=[ 2106], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 7, max= 256, per=25.52%, avg=74.77, stdev=36.27, samples=270 iops : min= 1, max= 64, avg=18.26, stdev= 9.11, samples=270 lat (msec) : 250=0.62%, 500=3.98%, 750=26.29%, 1000=46.60%, 2000=22.23% lat (msec) : >=2000=0.27% cpu : usr=0.05%, sys=0.24%, ctx=1689, 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=123143: Tue Apr 14 17:40:21 2026 write: IOPS=18, BW=73.4KiB/s (75.1kB/s)(10.0MiB/139545msec); 0 zone resets slat (usec): min=20, max=25444, avg=200.73, stdev=907.11 clat (msec): min=151, max=2233, avg=871.68, stdev=274.36 lat (msec): min=151, max=2233, avg=871.89, stdev=274.37 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 514], 10.00th=[ 584], 20.00th=[ 676], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 885], | 70.00th=[ 944], 80.00th=[ 1020], 90.00th=[ 1217], 95.00th=[ 1385], | 99.00th=[ 1804], 99.50th=[ 1972], 99.90th=[ 2072], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 208, per=24.93%, avg=73.04, stdev=28.72, samples=276 iops : min= 1, max= 52, avg=17.84, stdev= 7.21, samples=276 lat (msec) : 250=0.74%, 500=3.55%, 750=27.07%, 1000=46.84%, 2000=21.52% lat (msec) : >=2000=0.27% cpu : usr=0.05%, sys=0.25%, ctx=1791, 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=294KiB/s (301kB/s), 73.4KiB/s-73.5KiB/s (75.1kB/s-75.3kB/s), io=40.0MiB (41.9MB), run=139288-139545msec 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=123173: Tue Apr 14 17:42:01 2026 read: IOPS=13, BW=55.7KiB/s (57.0kB/s)(5048KiB/90685msec) slat (usec): min=33, max=52182, avg=11125.59, stdev=7068.49 clat (msec): min=7, max=872, avg=368.39, stdev=98.76 lat (msec): min=20, max=889, avg=379.52, stdev=99.87 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 236], 10.00th=[ 262], 20.00th=[ 292], | 30.00th=[ 313], 40.00th=[ 334], 50.00th=[ 359], 60.00th=[ 380], | 70.00th=[ 409], 80.00th=[ 443], 90.00th=[ 493], 95.00th=[ 542], | 99.00th=[ 667], 99.50th=[ 760], 99.90th=[ 793], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7, max= 135, per=25.42%, avg=55.68, stdev=23.84, samples=178 iops : min= 1, max= 33, avg=13.42, stdev= 5.98, samples=178 write: IOPS=14, BW=57.3KiB/s (58.6kB/s)(5192KiB/90685msec); 0 zone resets slat (usec): min=23, max=20139, avg=280.84, stdev=1094.64 clat (msec): min=155, max=1434, avg=747.59, stdev=205.24 lat (msec): min=156, max=1434, avg=747.88, stdev=205.20 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 422], 10.00th=[ 489], 20.00th=[ 575], | 30.00th=[ 634], 40.00th=[ 684], 50.00th=[ 743], 60.00th=[ 793], | 70.00th=[ 844], 80.00th=[ 919], 90.00th=[ 1020], 95.00th=[ 1099], | 99.00th=[ 1301], 99.50th=[ 1318], 99.90th=[ 1401], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 8, max= 128, per=24.80%, avg=56.53, stdev=22.10, samples=180 iops : min= 2, max= 32, avg=13.64, stdev= 5.56, samples=180 lat (msec) : 10=0.08%, 50=0.20%, 100=0.08%, 250=3.48%, 500=46.45% lat (msec) : 750=24.53%, 1000=19.41%, 2000=5.78% cpu : usr=0.13%, sys=0.74%, ctx=3263, 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=123174: Tue Apr 14 17:42:01 2026 read: IOPS=13, BW=54.5KiB/s (55.8kB/s)(4976KiB/91308msec) slat (usec): min=2191, max=66237, avg=11249.14, stdev=7201.57 clat (msec): min=8, max=797, avg=365.26, stdev=99.75 lat (msec): min=15, max=801, avg=376.52, stdev=100.77 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 228], 10.00th=[ 259], 20.00th=[ 292], | 30.00th=[ 313], 40.00th=[ 338], 50.00th=[ 355], 60.00th=[ 376], | 70.00th=[ 401], 80.00th=[ 439], 90.00th=[ 489], 95.00th=[ 550], | 99.00th=[ 634], 99.50th=[ 693], 99.90th=[ 785], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 7, max= 136, per=24.60%, avg=53.88, stdev=23.82, samples=181 iops : min= 1, max= 34, avg=12.98, stdev= 5.99, samples=181 write: IOPS=14, BW=57.7KiB/s (59.0kB/s)(5264KiB/91308msec); 0 zone resets slat (usec): min=21, max=13683, avg=281.76, stdev=998.83 clat (msec): min=222, max=1428, avg=752.70, stdev=203.33 lat (msec): min=224, max=1428, avg=752.99, stdev=203.30 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 435], 10.00th=[ 493], 20.00th=[ 584], | 30.00th=[ 642], 40.00th=[ 693], 50.00th=[ 751], 60.00th=[ 793], | 70.00th=[ 852], 80.00th=[ 919], 90.00th=[ 1020], 95.00th=[ 1116], | 99.00th=[ 1301], 99.50th=[ 1368], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 7, max= 127, per=24.98%, avg=56.95, stdev=21.41, samples=181 iops : min= 1, max= 31, avg=13.75, stdev= 5.39, samples=181 lat (msec) : 10=0.04%, 20=0.04%, 50=0.27%, 100=0.16%, 250=3.40% lat (msec) : 500=45.74%, 750=24.57%, 1000=20.12%, 2000=5.66% cpu : usr=0.12%, sys=0.82%, ctx=3259, 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=123175: Tue Apr 14 17:42:01 2026 read: IOPS=13, BW=54.6KiB/s (55.9kB/s)(4984KiB/91306msec) slat (usec): min=2003, max=53669, avg=10974.12, stdev=6699.50 clat (msec): min=39, max=755, avg=365.15, stdev=93.23 lat (msec): min=55, max=787, avg=376.13, stdev=94.18 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 239], 10.00th=[ 264], 20.00th=[ 292], | 30.00th=[ 313], 40.00th=[ 334], 50.00th=[ 355], 60.00th=[ 380], | 70.00th=[ 405], 80.00th=[ 443], 90.00th=[ 485], 95.00th=[ 531], | 99.00th=[ 634], 99.50th=[ 684], 99.90th=[ 751], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 8, max= 151, per=24.89%, avg=54.50, stdev=26.64, samples=180 iops : min= 2, max= 37, avg=13.13, stdev= 6.67, samples=180 write: IOPS=14, BW=57.6KiB/s (58.9kB/s)(5256KiB/91306msec); 0 zone resets slat (usec): min=28, max=18347, avg=331.17, stdev=1200.11 clat (msec): min=270, max=1447, avg=752.96, stdev=199.97 lat (msec): min=270, max=1447, avg=753.29, stdev=199.88 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 430], 10.00th=[ 498], 20.00th=[ 584], | 30.00th=[ 642], 40.00th=[ 701], 50.00th=[ 751], 60.00th=[ 802], | 70.00th=[ 852], 80.00th=[ 919], 90.00th=[ 1003], 95.00th=[ 1083], | 99.00th=[ 1267], 99.50th=[ 1334], 99.90th=[ 1418], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 7, max= 127, per=24.99%, avg=56.98, stdev=21.11, samples=180 iops : min= 1, max= 31, avg=13.76, stdev= 5.33, samples=180 lat (msec) : 50=0.08%, 100=0.20%, 250=3.24%, 500=46.60%, 750=24.45% lat (msec) : 1000=20.08%, 2000=5.35% cpu : usr=0.11%, sys=0.83%, ctx=3291, 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=123176: Tue Apr 14 17:42:01 2026 read: IOPS=13, BW=55.5KiB/s (56.9kB/s)(5060KiB/91140msec) slat (usec): min=1935, max=54760, avg=10905.11, stdev=6697.23 clat (msec): min=32, max=807, avg=368.26, stdev=96.45 lat (msec): min=41, max=823, avg=379.17, stdev=97.11 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 236], 10.00th=[ 262], 20.00th=[ 292], | 30.00th=[ 317], 40.00th=[ 338], 50.00th=[ 359], 60.00th=[ 380], | 70.00th=[ 409], 80.00th=[ 443], 90.00th=[ 489], 95.00th=[ 535], | 99.00th=[ 651], 99.50th=[ 709], 99.90th=[ 802], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 7, max= 120, per=25.43%, avg=55.69, stdev=23.04, samples=179 iops : min= 1, max= 30, avg=13.43, stdev= 5.77, samples=179 write: IOPS=14, BW=56.8KiB/s (58.2kB/s)(5180KiB/91140msec); 0 zone resets slat (usec): min=22, max=17183, avg=264.74, stdev=920.13 clat (msec): min=276, max=1414, avg=753.69, stdev=205.26 lat (msec): min=281, max=1414, avg=753.95, stdev=205.23 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 418], 10.00th=[ 485], 20.00th=[ 584], | 30.00th=[ 642], 40.00th=[ 701], 50.00th=[ 743], 60.00th=[ 802], | 70.00th=[ 860], 80.00th=[ 919], 90.00th=[ 1020], 95.00th=[ 1116], | 99.00th=[ 1284], 99.50th=[ 1318], 99.90th=[ 1385], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 7, max= 112, per=24.56%, avg=55.99, stdev=22.16, samples=181 iops : min= 1, max= 28, avg=13.51, stdev= 5.61, samples=181 lat (msec) : 50=0.16%, 100=0.20%, 250=3.48%, 500=46.80%, 750=24.61% lat (msec) : 1000=18.79%, 2000=5.98% cpu : usr=0.14%, sys=0.78%, ctx=3280, 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=220KiB/s (225kB/s), 54.5KiB/s-55.7KiB/s (55.8kB/s-57.0kB/s), io=19.6MiB (20.5MB), run=90685-91308msec WRITE: bw=229KiB/s (234kB/s), 56.8KiB/s-57.7KiB/s (58.2kB/s-59.0kB/s), io=20.4MiB (21.4MB), run=90685-91308msec 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=123193: Tue Apr 14 17:42:12 2026 read: IOPS=1, BW=46.1MiB/s (48.4MB/s)(40.0MiB/867msec) slat (nsec): min=42999k, max=42999k, avg=42999020.00, stdev= 0.00 clat (nsec): min=800263k, max=800263k, avg=800262602.00, stdev= 0.00 lat (nsec): min=843266k, max=843266k, avg=843266079.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 802], 5.00th=[ 802], 10.00th=[ 802], 20.00th=[ 802], | 30.00th=[ 802], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 802], | 70.00th=[ 802], 80.00th=[ 802], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=1.62%, ctx=3, 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=46.1MiB/s (48.4MB/s), 46.1MiB/s-46.1MiB/s (48.4MB/s-48.4MB/s), io=40.0MiB (41.9MB), run=867-867msec debug=super ioctl neterror warning dlmtrace error emerg ha rpctrace vfstrace config console lfsck