== sanity test 398c: run fio to test AIO ================= 01:48:40 (1787377720) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.714085 s, 58.7 MB/s osc.lustre-OST0000-osc-ffff92b0d8baa800.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=145882: Sat Aug 22 01:51:30 2026 write: IOPS=16, BW=64.9KiB/s (66.4kB/s)(10.0MiB/157822msec); 0 zone resets slat (usec): min=23, max=32979, avg=293.86, stdev=1172.63 clat (msec): min=126, max=2416, avg=985.65, stdev=278.33 lat (msec): min=127, max=2416, avg=985.95, stdev=278.29 clat percentiles (msec): | 1.00th=[ 268], 5.00th=[ 550], 10.00th=[ 676], 20.00th=[ 785], | 30.00th=[ 860], 40.00th=[ 911], 50.00th=[ 969], 60.00th=[ 1028], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1334], 95.00th=[ 1469], | 99.00th=[ 1703], 99.50th=[ 1955], 99.90th=[ 2198], 99.95th=[ 2232], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 234, per=25.36%, avg=65.68, stdev=33.56, samples=306 iops : min= 1, max= 58, avg=15.89, stdev= 8.41, samples=306 lat (msec) : 250=0.55%, 500=3.55%, 750=11.05%, 1000=39.41%, 2000=45.12% lat (msec) : >=2000=0.31% cpu : usr=0.06%, sys=0.29%, ctx=1801, 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=145883: Sat Aug 22 01:51:30 2026 write: IOPS=16, BW=64.8KiB/s (66.4kB/s)(10.0MiB/157931msec); 0 zone resets slat (usec): min=21, max=18208, avg=293.72, stdev=1157.43 clat (msec): min=258, max=2194, avg=985.70, stdev=273.14 lat (msec): min=258, max=2194, avg=986.00, stdev=273.13 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 567], 10.00th=[ 667], 20.00th=[ 793], | 30.00th=[ 860], 40.00th=[ 919], 50.00th=[ 961], 60.00th=[ 1020], | 70.00th=[ 1099], 80.00th=[ 1183], 90.00th=[ 1334], 95.00th=[ 1452], | 99.00th=[ 1804], 99.50th=[ 1905], 99.90th=[ 2056], 99.95th=[ 2056], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 254, per=25.12%, avg=65.05, stdev=31.96, samples=309 iops : min= 1, max= 63, avg=15.73, stdev= 8.00, samples=309 lat (msec) : 500=3.05%, 750=12.03%, 1000=40.94%, 2000=43.79%, >=2000=0.20% cpu : usr=0.06%, sys=0.28%, ctx=1728, 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=145884: Sat Aug 22 01:51:30 2026 write: IOPS=16, BW=64.8KiB/s (66.4kB/s)(10.0MiB/157973msec); 0 zone resets slat (usec): min=23, max=23159, avg=316.53, stdev=1323.13 clat (msec): min=196, max=2412, avg=985.90, stdev=276.64 lat (msec): min=196, max=2412, avg=986.22, stdev=276.63 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 542], 10.00th=[ 676], 20.00th=[ 793], | 30.00th=[ 844], 40.00th=[ 911], 50.00th=[ 969], 60.00th=[ 1028], | 70.00th=[ 1083], 80.00th=[ 1200], 90.00th=[ 1318], 95.00th=[ 1452], | 99.00th=[ 1754], 99.50th=[ 1955], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 160, per=25.21%, avg=65.29, stdev=28.88, samples=308 iops : min= 1, max= 40, avg=15.79, stdev= 7.24, samples=308 lat (msec) : 250=0.39%, 500=3.05%, 750=12.50%, 1000=39.41%, 2000=44.45% lat (msec) : >=2000=0.20% cpu : usr=0.06%, sys=0.29%, ctx=2020, 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=145885: Sat Aug 22 01:51:30 2026 write: IOPS=16, BW=64.8KiB/s (66.3kB/s)(10.0MiB/158043msec); 0 zone resets slat (usec): min=21, max=15609, avg=244.44, stdev=885.36 clat (msec): min=262, max=2334, avg=986.32, stdev=283.43 lat (msec): min=262, max=2334, avg=986.57, stdev=283.40 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 558], 10.00th=[ 667], 20.00th=[ 785], | 30.00th=[ 852], 40.00th=[ 911], 50.00th=[ 969], 60.00th=[ 1020], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1334], 95.00th=[ 1469], | 99.00th=[ 1854], 99.50th=[ 2140], 99.90th=[ 2265], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 256, per=26.61%, avg=68.92, stdev=36.69, samples=292 iops : min= 1, max= 64, avg=16.68, stdev= 9.20, samples=292 lat (msec) : 500=4.06%, 750=13.16%, 1000=39.18%, 2000=42.93%, >=2000=0.66% cpu : usr=0.05%, sys=0.24%, ctx=1503, 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 Run status group 0 (all jobs): WRITE: bw=259KiB/s (265kB/s), 64.8KiB/s-64.9KiB/s (66.3kB/s-66.4kB/s), io=40.0MiB (41.9MB), run=157822-158043msec 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=145919: Sat Aug 22 01:53:29 2026 read: IOPS=11, BW=46.3KiB/s (47.4kB/s)(5048KiB/109031msec) slat (usec): min=3307, max=77709, avg=16472.59, stdev=9650.56 clat (msec): min=16, max=1113, avg=441.53, stdev=155.52 lat (msec): min=25, max=1136, avg=458.01, stdev=158.32 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 259], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 359], 40.00th=[ 388], 50.00th=[ 409], 60.00th=[ 439], | 70.00th=[ 481], 80.00th=[ 527], 90.00th=[ 625], 95.00th=[ 768], | 99.00th=[ 978], 99.50th=[ 1020], 99.90th=[ 1099], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 143, per=25.23%, avg=45.93, stdev=21.41, samples=215 iops : min= 1, max= 35, avg=10.91, stdev= 5.41, samples=215 write: IOPS=11, BW=47.6KiB/s (48.8kB/s)(5192KiB/109031msec); 0 zone resets slat (usec): min=25, max=20261, avg=293.68, stdev=811.17 clat (msec): min=120, max=2236, avg=895.07, stdev=288.45 lat (msec): min=120, max=2236, avg=895.36, stdev=288.45 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 510], 10.00th=[ 584], 20.00th=[ 693], | 30.00th=[ 751], 40.00th=[ 802], 50.00th=[ 844], 60.00th=[ 902], | 70.00th=[ 986], 80.00th=[ 1083], 90.00th=[ 1217], 95.00th=[ 1401], | 99.00th=[ 1955], 99.50th=[ 2056], 99.90th=[ 2165], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 111, per=24.82%, avg=47.16, stdev=21.78, samples=215 iops : min= 1, max= 27, avg=11.22, stdev= 5.49, samples=215 lat (msec) : 20=0.04%, 50=0.08%, 100=0.12%, 250=1.76%, 500=37.66% lat (msec) : 750=22.50%, 1000=23.63%, 2000=13.83%, >=2000=0.39% cpu : usr=0.14%, sys=0.76%, ctx=4806, 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=145920: Sat Aug 22 01:53:29 2026 read: IOPS=11, BW=45.6KiB/s (46.7kB/s)(4976KiB/109207msec) slat (usec): min=38, max=186394, avg=16258.20, stdev=10615.04 clat (msec): min=14, max=1146, avg=442.04, stdev=160.90 lat (msec): min=35, max=1175, avg=458.30, stdev=163.45 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 245], 10.00th=[ 279], 20.00th=[ 326], | 30.00th=[ 359], 40.00th=[ 384], 50.00th=[ 414], 60.00th=[ 443], | 70.00th=[ 481], 80.00th=[ 542], 90.00th=[ 642], 95.00th=[ 802], | 99.00th=[ 969], 99.50th=[ 1011], 99.90th=[ 1133], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 112, per=24.79%, avg=45.13, stdev=21.80, samples=215 iops : min= 1, max= 28, avg=10.72, stdev= 5.52, samples=215 write: IOPS=12, BW=48.2KiB/s (49.4kB/s)(5264KiB/109207msec); 0 zone resets slat (usec): min=31, max=30892, avg=344.72, stdev=1222.59 clat (msec): min=200, max=2339, avg=893.54, stdev=306.12 lat (msec): min=200, max=2339, avg=893.89, stdev=306.20 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 481], 10.00th=[ 558], 20.00th=[ 676], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 852], 60.00th=[ 919], | 70.00th=[ 986], 80.00th=[ 1083], 90.00th=[ 1217], 95.00th=[ 1418], | 99.00th=[ 1989], 99.50th=[ 2165], 99.90th=[ 2265], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 159, per=25.21%, avg=47.90, stdev=22.22, samples=215 iops : min= 1, max= 39, avg=11.41, stdev= 5.59, samples=215 lat (msec) : 20=0.04%, 50=0.20%, 100=0.35%, 250=2.38%, 500=36.33% lat (msec) : 750=22.62%, 1000=23.40%, 2000=14.26%, >=2000=0.43% cpu : usr=0.12%, sys=0.77%, ctx=4810, 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=145921: Sat Aug 22 01:53:29 2026 read: IOPS=11, BW=45.4KiB/s (46.5kB/s)(4984KiB/109756msec) slat (msec): min=2, max=452, avg=16.98, stdev=22.06 clat (msec): min=13, max=1655, avg=444.85, stdev=184.17 lat (msec): min=26, max=1683, avg=461.84, stdev=188.57 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 249], 10.00th=[ 279], 20.00th=[ 321], | 30.00th=[ 355], 40.00th=[ 380], 50.00th=[ 414], 60.00th=[ 439], | 70.00th=[ 481], 80.00th=[ 531], 90.00th=[ 659], 95.00th=[ 827], | 99.00th=[ 1045], 99.50th=[ 1301], 99.90th=[ 1636], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 7, max= 127, per=24.80%, avg=45.14, stdev=22.96, samples=216 iops : min= 1, max= 31, avg=10.72, stdev= 5.80, samples=216 write: IOPS=11, BW=47.9KiB/s (49.0kB/s)(5256KiB/109756msec); 0 zone resets slat (usec): min=31, max=22306, avg=382.34, stdev=1323.61 clat (msec): min=101, max=2224, avg=895.19, stdev=318.77 lat (msec): min=101, max=2224, avg=895.57, stdev=318.76 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 456], 10.00th=[ 542], 20.00th=[ 667], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 860], 60.00th=[ 919], | 70.00th=[ 986], 80.00th=[ 1099], 90.00th=[ 1250], 95.00th=[ 1519], | 99.00th=[ 1989], 99.50th=[ 2123], 99.90th=[ 2198], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 119, per=25.36%, avg=48.18, stdev=20.79, samples=213 iops : min= 1, max= 29, avg=11.48, stdev= 5.23, samples=213 lat (msec) : 20=0.08%, 50=0.20%, 100=0.31%, 250=2.27%, 500=37.58% lat (msec) : 750=21.41%, 1000=23.28%, 2000=14.45%, >=2000=0.43% cpu : usr=0.13%, sys=0.74%, ctx=4686, 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=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=145922: Sat Aug 22 01:53:29 2026 read: IOPS=11, BW=46.4KiB/s (47.6kB/s)(5060KiB/108956msec) slat (usec): min=2926, max=63682, avg=16054.28, stdev=9096.64 clat (msec): min=16, max=1132, avg=441.07, stdev=161.32 lat (msec): min=38, max=1162, avg=457.14, stdev=164.05 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 255], 10.00th=[ 288], 20.00th=[ 326], | 30.00th=[ 355], 40.00th=[ 380], 50.00th=[ 409], 60.00th=[ 435], | 70.00th=[ 481], 80.00th=[ 535], 90.00th=[ 634], 95.00th=[ 776], | 99.00th=[ 995], 99.50th=[ 1083], 99.90th=[ 1116], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 120, per=25.55%, avg=46.50, stdev=22.21, samples=213 iops : min= 1, max= 30, avg=11.06, stdev= 5.59, samples=213 write: IOPS=11, BW=47.5KiB/s (48.7kB/s)(5180KiB/108956msec); 0 zone resets slat (usec): min=28, max=9942, avg=300.54, stdev=750.00 clat (msec): min=125, max=2325, avg=896.06, stdev=289.83 lat (msec): min=125, max=2325, avg=896.36, stdev=289.85 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 493], 10.00th=[ 575], 20.00th=[ 684], | 30.00th=[ 743], 40.00th=[ 802], 50.00th=[ 860], 60.00th=[ 919], | 70.00th=[ 995], 80.00th=[ 1083], 90.00th=[ 1217], 95.00th=[ 1385], | 99.00th=[ 1921], 99.50th=[ 1989], 99.90th=[ 2198], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 135, per=24.88%, avg=47.27, stdev=21.80, samples=214 iops : min= 1, max= 33, avg=11.25, stdev= 5.49, samples=214 lat (msec) : 20=0.08%, 50=0.16%, 100=0.12%, 250=1.91%, 500=37.62% lat (msec) : 750=22.27%, 1000=22.77%, 2000=14.84%, >=2000=0.23% cpu : usr=0.10%, sys=0.72%, ctx=4576, 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=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=183KiB/s (187kB/s), 45.4KiB/s-46.4KiB/s (46.5kB/s-47.6kB/s), io=19.6MiB (20.5MB), run=108956-109756msec WRITE: bw=190KiB/s (195kB/s), 47.5KiB/s-48.2KiB/s (48.7kB/s-49.4kB/s), io=20.4MiB (21.4MB), run=108956-109756msec 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=145941: Sat Aug 22 01:53:38 2026 read: IOPS=1, BW=61.2MiB/s (64.1MB/s)(40.0MiB/654msec) slat (nsec): min=25949k, max=25949k, avg=25948763.00, stdev= 0.00 clat (nsec): min=607895k, max=607895k, avg=607895492.00, stdev= 0.00 lat (nsec): min=633849k, max=633849k, avg=633848554.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 609], 5.00th=[ 609], 10.00th=[ 609], 20.00th=[ 609], | 30.00th=[ 609], 40.00th=[ 609], 50.00th=[ 609], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.14%, ctx=8, 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=61.2MiB/s (64.1MB/s), 61.2MiB/s-61.2MiB/s (64.1MB/s-64.1MB/s), io=40.0MiB (41.9MB), run=654-654msec 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