== sanity test 398c: run fio to test AIO ================= 12:39:14 (1782232754) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.415131 s, 101 MB/s osc.lustre-OST0000-osc-ffff9dfab03da000.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=145827: Tue Jun 23 12:42:33 2026 write: IOPS=13, BW=54.2KiB/s (55.5kB/s)(10.0MiB/188798msec); 0 zone resets slat (usec): min=48, max=20447, avg=366.36, stdev=1049.59 clat (msec): min=341, max=2455, avg=1178.51, stdev=291.52 lat (msec): min=341, max=2455, avg=1178.88, stdev=291.50 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 701], 10.00th=[ 860], 20.00th=[ 953], | 30.00th=[ 1028], 40.00th=[ 1083], 50.00th=[ 1167], 60.00th=[ 1234], | 70.00th=[ 1318], 80.00th=[ 1401], 90.00th=[ 1552], 95.00th=[ 1687], | 99.00th=[ 1905], 99.50th=[ 1972], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 128, per=25.69%, avg=55.48, stdev=28.71, samples=362 iops : min= 1, max= 32, avg=13.35, stdev= 7.22, samples=362 lat (msec) : 500=0.90%, 750=5.43%, 1000=19.41%, 2000=73.98%, >=2000=0.27% cpu : usr=0.05%, sys=0.26%, ctx=1918, 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=145828: Tue Jun 23 12:42:33 2026 write: IOPS=13, BW=54.4KiB/s (55.7kB/s)(10.0MiB/188217msec); 0 zone resets slat (usec): min=51, max=15735, avg=392.88, stdev=1021.49 clat (msec): min=110, max=3156, avg=1175.11, stdev=303.41 lat (msec): min=111, max=3156, avg=1175.51, stdev=303.42 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 667], 10.00th=[ 818], 20.00th=[ 953], | 30.00th=[ 1036], 40.00th=[ 1099], 50.00th=[ 1167], 60.00th=[ 1234], | 70.00th=[ 1301], 80.00th=[ 1401], 90.00th=[ 1569], 95.00th=[ 1687], | 99.00th=[ 1888], 99.50th=[ 2039], 99.90th=[ 2769], 99.95th=[ 3171], | 99.99th=[ 3171] bw ( KiB/s): min= 7, max= 144, per=25.69%, avg=55.50, stdev=29.49, samples=362 iops : min= 1, max= 36, avg=13.35, stdev= 7.37, samples=362 lat (msec) : 250=0.66%, 500=0.55%, 750=5.70%, 1000=19.14%, 2000=73.44% lat (msec) : >=2000=0.51% cpu : usr=0.04%, sys=0.29%, ctx=2596, 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=145829: Tue Jun 23 12:42:33 2026 write: IOPS=13, BW=54.4KiB/s (55.7kB/s)(10.0MiB/188372msec); 0 zone resets slat (usec): min=37, max=16245, avg=343.71, stdev=906.10 clat (msec): min=254, max=2927, avg=1175.70, stdev=297.37 lat (msec): min=254, max=2927, avg=1176.05, stdev=297.40 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 651], 10.00th=[ 852], 20.00th=[ 953], | 30.00th=[ 1020], 40.00th=[ 1083], 50.00th=[ 1167], 60.00th=[ 1234], | 70.00th=[ 1318], 80.00th=[ 1401], 90.00th=[ 1536], 95.00th=[ 1670], | 99.00th=[ 1854], 99.50th=[ 1955], 99.90th=[ 2937], 99.95th=[ 2937], | 99.99th=[ 2937] bw ( KiB/s): min= 7, max= 128, per=25.06%, avg=54.13, stdev=24.38, samples=371 iops : min= 1, max= 32, avg=13.01, stdev= 6.14, samples=371 lat (msec) : 500=1.25%, 750=5.39%, 1000=19.96%, 2000=73.01%, >=2000=0.39% cpu : usr=0.05%, sys=0.28%, ctx=2043, 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=145830: Tue Jun 23 12:42:33 2026 write: IOPS=13, BW=54.2KiB/s (55.5kB/s)(10.0MiB/188811msec); 0 zone resets slat (usec): min=47, max=17840, avg=399.49, stdev=1172.27 clat (msec): min=397, max=2736, avg=1178.33, stdev=293.56 lat (msec): min=397, max=2739, avg=1178.73, stdev=293.55 clat percentiles (msec): | 1.00th=[ 527], 5.00th=[ 693], 10.00th=[ 818], 20.00th=[ 961], | 30.00th=[ 1028], 40.00th=[ 1083], 50.00th=[ 1167], 60.00th=[ 1234], | 70.00th=[ 1318], 80.00th=[ 1418], 90.00th=[ 1552], 95.00th=[ 1687], | 99.00th=[ 1905], 99.50th=[ 1972], 99.90th=[ 2534], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 7, max= 128, per=25.56%, avg=55.20, stdev=27.99, samples=364 iops : min= 1, max= 32, avg=13.28, stdev= 6.98, samples=364 lat (msec) : 500=0.90%, 750=5.78%, 1000=19.41%, 2000=73.71%, >=2000=0.20% cpu : usr=0.04%, sys=0.26%, ctx=2032, 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=217KiB/s (222kB/s), 54.2KiB/s-54.4KiB/s (55.5kB/s-55.7kB/s), io=40.0MiB (41.9MB), run=188217-188811msec 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=145876: Tue Jun 23 12:45:08 2026 read: IOPS=8, BW=35.7KiB/s (36.6kB/s)(5048KiB/141302msec) slat (usec): min=97, max=66662, avg=17330.95, stdev=9732.08 clat (msec): min=19, max=1811, avg=546.91, stdev=172.58 lat (msec): min=26, max=1828, avg=564.25, stdev=174.59 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 334], 10.00th=[ 376], 20.00th=[ 418], | 30.00th=[ 456], 40.00th=[ 489], 50.00th=[ 523], 60.00th=[ 558], | 70.00th=[ 600], 80.00th=[ 667], 90.00th=[ 760], 95.00th=[ 835], | 99.00th=[ 1099], 99.50th=[ 1217], 99.90th=[ 1804], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 7, max= 95, per=25.81%, avg=36.40, stdev=18.27, samples=271 iops : min= 1, max= 23, avg= 8.59, stdev= 4.59, samples=271 write: IOPS=9, BW=36.7KiB/s (37.6kB/s)(5192KiB/141302msec); 0 zone resets slat (usec): min=56, max=17713, avg=505.89, stdev=1504.98 clat (msec): min=190, max=2580, avg=1191.13, stdev=328.32 lat (msec): min=192, max=2580, avg=1191.64, stdev=328.29 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 693], 10.00th=[ 802], 20.00th=[ 927], | 30.00th=[ 1003], 40.00th=[ 1083], 50.00th=[ 1167], 60.00th=[ 1250], | 70.00th=[ 1334], 80.00th=[ 1469], 90.00th=[ 1620], 95.00th=[ 1754], | 99.00th=[ 2039], 99.50th=[ 2165], 99.90th=[ 2567], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 7, max= 103, per=24.93%, avg=36.64, stdev=18.09, samples=276 iops : min= 1, max= 25, avg= 8.65, stdev= 4.56, samples=276 lat (msec) : 20=0.04%, 50=0.08%, 100=0.27%, 250=0.43%, 500=21.60% lat (msec) : 750=25.08%, 1000=16.05%, 2000=35.59%, >=2000=0.86% cpu : usr=0.10%, sys=0.59%, ctx=4603, 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=145877: Tue Jun 23 12:45:08 2026 read: IOPS=8, BW=35.1KiB/s (35.9kB/s)(4976KiB/141818msec) slat (usec): min=3194, max=72466, avg=18057.77, stdev=9887.45 clat (msec): min=42, max=1227, avg=549.60, stdev=159.19 lat (msec): min=52, max=1252, avg=567.67, stdev=161.11 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 334], 10.00th=[ 372], 20.00th=[ 422], | 30.00th=[ 460], 40.00th=[ 498], 50.00th=[ 531], 60.00th=[ 567], | 70.00th=[ 609], 80.00th=[ 667], 90.00th=[ 760], 95.00th=[ 827], | 99.00th=[ 1011], 99.50th=[ 1167], 99.90th=[ 1217], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 7, max= 104, per=24.97%, avg=35.20, stdev=18.04, samples=275 iops : min= 1, max= 26, avg= 8.29, stdev= 4.54, samples=275 write: IOPS=9, BW=37.1KiB/s (38.0kB/s)(5264KiB/141818msec); 0 zone resets slat (usec): min=52, max=19910, avg=508.89, stdev=1430.88 clat (msec): min=228, max=2421, avg=1184.46, stdev=325.05 lat (msec): min=229, max=2421, avg=1184.97, stdev=325.03 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 701], 10.00th=[ 810], 20.00th=[ 919], | 30.00th=[ 995], 40.00th=[ 1083], 50.00th=[ 1167], 60.00th=[ 1250], | 70.00th=[ 1334], 80.00th=[ 1452], 90.00th=[ 1620], 95.00th=[ 1754], | 99.00th=[ 1989], 99.50th=[ 2140], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 95, per=25.00%, avg=36.75, stdev=17.71, samples=280 iops : min= 1, max= 23, avg= 8.68, stdev= 4.46, samples=280 lat (msec) : 50=0.04%, 100=0.12%, 250=0.43%, 500=20.12%, 750=26.33% lat (msec) : 1000=16.91%, 2000=35.59%, >=2000=0.47% cpu : usr=0.09%, sys=0.63%, ctx=4939, 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=145878: Tue Jun 23 12:45:08 2026 read: IOPS=8, BW=35.2KiB/s (36.0kB/s)(4984KiB/141731msec) slat (usec): min=3673, max=82617, avg=17400.06, stdev=9185.86 clat (msec): min=48, max=1219, avg=556.15, stdev=161.48 lat (msec): min=55, max=1248, avg=573.56, stdev=163.12 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 342], 10.00th=[ 380], 20.00th=[ 426], | 30.00th=[ 464], 40.00th=[ 498], 50.00th=[ 535], 60.00th=[ 584], | 70.00th=[ 625], 80.00th=[ 684], 90.00th=[ 768], 95.00th=[ 844], | 99.00th=[ 995], 99.50th=[ 1099], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 7, max= 94, per=25.12%, avg=35.41, stdev=17.71, samples=275 iops : min= 1, max= 23, avg= 8.34, stdev= 4.44, samples=275 write: IOPS=9, BW=37.1KiB/s (37.0kB/s)(5256KiB/141731msec); 0 zone resets slat (usec): min=45, max=25296, avg=435.68, stdev=1251.73 clat (msec): min=253, max=2535, avg=1178.10, stdev=329.16 lat (msec): min=253, max=2535, avg=1178.54, stdev=329.14 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 667], 10.00th=[ 785], 20.00th=[ 911], | 30.00th=[ 986], 40.00th=[ 1062], 50.00th=[ 1150], 60.00th=[ 1250], | 70.00th=[ 1334], 80.00th=[ 1452], 90.00th=[ 1620], 95.00th=[ 1754], | 99.00th=[ 2022], 99.50th=[ 2072], 99.90th=[ 2534], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 88, per=25.02%, avg=36.78, stdev=18.63, samples=278 iops : min= 1, max= 22, avg= 8.69, stdev= 4.71, samples=278 lat (msec) : 50=0.04%, 100=0.12%, 250=0.51%, 500=19.65%, 750=26.21% lat (msec) : 1000=18.24%, 2000=34.61%, >=2000=0.62% cpu : usr=0.08%, sys=0.66%, ctx=4741, 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=145879: Tue Jun 23 12:45:08 2026 read: IOPS=8, BW=35.8KiB/s (36.6kB/s)(5060KiB/141394msec) slat (usec): min=3492, max=72857, avg=17922.21, stdev=10003.57 clat (msec): min=44, max=1205, avg=549.46, stdev=158.51 lat (msec): min=60, max=1251, avg=567.39, stdev=160.84 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 342], 10.00th=[ 384], 20.00th=[ 422], | 30.00th=[ 460], 40.00th=[ 489], 50.00th=[ 523], 60.00th=[ 567], | 70.00th=[ 617], 80.00th=[ 667], 90.00th=[ 751], 95.00th=[ 835], | 99.00th=[ 1070], 99.50th=[ 1133], 99.90th=[ 1183], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 87, per=25.54%, avg=36.01, stdev=16.96, samples=275 iops : min= 1, max= 21, avg= 8.49, stdev= 4.23, samples=275 write: IOPS=9, BW=36.6KiB/s (37.5kB/s)(5180KiB/141394msec); 0 zone resets slat (usec): min=52, max=17050, avg=466.29, stdev=1286.37 clat (msec): min=331, max=2413, avg=1188.90, stdev=324.23 lat (msec): min=331, max=2413, avg=1189.37, stdev=324.26 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 718], 10.00th=[ 818], 20.00th=[ 911], | 30.00th=[ 995], 40.00th=[ 1070], 50.00th=[ 1167], 60.00th=[ 1250], | 70.00th=[ 1334], 80.00th=[ 1452], 90.00th=[ 1636], 95.00th=[ 1770], | 99.00th=[ 2005], 99.50th=[ 2039], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 96, per=24.73%, avg=36.35, stdev=18.93, samples=277 iops : min= 1, max= 24, avg= 8.58, stdev= 4.78, samples=277 lat (msec) : 50=0.04%, 100=0.20%, 250=0.43%, 500=20.94%, 750=25.98% lat (msec) : 1000=16.60%, 2000=35.20%, >=2000=0.62% cpu : usr=0.09%, sys=0.61%, ctx=4760, 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=142KiB/s (145kB/s), 35.1KiB/s-35.8KiB/s (35.9kB/s-36.6kB/s), io=19.6MiB (20.5MB), run=141302-141818msec WRITE: bw=147KiB/s (151kB/s), 36.6KiB/s-37.1KiB/s (37.5kB/s-38.0kB/s), io=20.4MiB (21.4MB), run=141302-141818msec 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=145904: Tue Jun 23 12:45:19 2026 read: IOPS=2, BW=97.8MiB/s (103MB/s)(40.0MiB/409msec) slat (nsec): min=30362k, max=30362k, avg=30362242.00, stdev= 0.00 clat (nsec): min=348609k, max=348609k, avg=348608667.00, stdev= 0.00 lat (nsec): min=378976k, max=378976k, avg=378976037.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 351], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 351], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.68%, 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=97.8MiB/s (103MB/s), 97.8MiB/s-97.8MiB/s (103MB/s-103MB/s), io=40.0MiB (41.9MB), run=409-409msec 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