== sanity test 398c: run fio to test AIO ================= 17:13:00 (1778620380) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.548009 s, 76.5 MB/s osc.lustre-OST0000-osc-ffff9d1947ac2000.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=145041: Tue May 12 17:16:13 2026 write: IOPS=14, BW=56.2KiB/s (57.6kB/s)(10.0MiB/182050msec); 0 zone resets slat (usec): min=36, max=20813, avg=323.96, stdev=1111.79 clat (msec): min=209, max=2151, avg=1136.34, stdev=375.68 lat (msec): min=209, max=2151, avg=1136.67, stdev=375.68 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 575], 10.00th=[ 676], 20.00th=[ 827], | 30.00th=[ 927], 40.00th=[ 1011], 50.00th=[ 1083], 60.00th=[ 1183], | 70.00th=[ 1284], 80.00th=[ 1452], 90.00th=[ 1687], 95.00th=[ 1838], | 99.00th=[ 2056], 99.50th=[ 2106], 99.90th=[ 2140], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 128, per=26.71%, avg=59.84, stdev=31.04, samples=336 iops : min= 1, max= 32, avg=14.45, stdev= 7.76, samples=336 lat (msec) : 250=0.62%, 500=1.72%, 750=11.52%, 1000=24.49%, 2000=60.00% lat (msec) : >=2000=1.64% cpu : usr=0.04%, sys=0.27%, ctx=1969, majf=0, minf=8 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=145042: Tue May 12 17:16:13 2026 write: IOPS=14, BW=56.2KiB/s (57.5kB/s)(10.0MiB/182223msec); 0 zone resets slat (usec): min=36, max=13345, avg=273.12, stdev=783.72 clat (msec): min=282, max=2176, avg=1137.31, stdev=371.66 lat (msec): min=282, max=2176, avg=1137.58, stdev=371.64 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 584], 10.00th=[ 667], 20.00th=[ 827], | 30.00th=[ 927], 40.00th=[ 1011], 50.00th=[ 1099], 60.00th=[ 1183], | 70.00th=[ 1301], 80.00th=[ 1469], 90.00th=[ 1670], 95.00th=[ 1804], | 99.00th=[ 2005], 99.50th=[ 2056], 99.90th=[ 2140], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 128, per=25.93%, avg=58.09, stdev=31.06, samples=346 iops : min= 1, max= 32, avg=14.03, stdev= 7.80, samples=346 lat (msec) : 500=3.28%, 750=11.91%, 1000=23.59%, 2000=60.00%, >=2000=1.21% cpu : usr=0.03%, sys=0.25%, ctx=1898, 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=145043: Tue May 12 17:16:13 2026 write: IOPS=14, BW=56.2KiB/s (57.6kB/s)(10.0MiB/182175msec); 0 zone resets slat (usec): min=36, max=34986, avg=303.63, stdev=1060.14 clat (msec): min=180, max=2164, avg=1137.08, stdev=373.11 lat (msec): min=180, max=2164, avg=1137.38, stdev=373.12 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 584], 10.00th=[ 676], 20.00th=[ 835], | 30.00th=[ 927], 40.00th=[ 1011], 50.00th=[ 1099], 60.00th=[ 1183], | 70.00th=[ 1301], 80.00th=[ 1435], 90.00th=[ 1670], 95.00th=[ 1838], | 99.00th=[ 2056], 99.50th=[ 2106], 99.90th=[ 2123], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 136, per=25.49%, avg=57.11, stdev=29.44, samples=352 iops : min= 1, max= 34, avg=13.78, stdev= 7.37, samples=352 lat (msec) : 250=0.62%, 500=1.80%, 750=12.03%, 1000=23.83%, 2000=59.61% lat (msec) : >=2000=2.11% cpu : usr=0.04%, sys=0.26%, ctx=2113, majf=0, minf=8 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=145044: Tue May 12 17:16:13 2026 write: IOPS=14, BW=56.4KiB/s (57.7kB/s)(10.0MiB/181717msec); 0 zone resets slat (usec): min=35, max=19209, avg=334.17, stdev=1144.59 clat (msec): min=115, max=2218, avg=1134.50, stdev=382.14 lat (msec): min=120, max=2218, avg=1134.84, stdev=382.10 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 558], 10.00th=[ 667], 20.00th=[ 810], | 30.00th=[ 919], 40.00th=[ 1011], 50.00th=[ 1099], 60.00th=[ 1183], | 70.00th=[ 1301], 80.00th=[ 1469], 90.00th=[ 1670], 95.00th=[ 1821], | 99.00th=[ 2056], 99.50th=[ 2106], 99.90th=[ 2165], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 164, per=25.33%, avg=56.75, stdev=28.88, samples=354 iops : min= 1, max= 41, avg=13.69, stdev= 7.25, samples=354 lat (msec) : 250=0.47%, 500=2.58%, 750=12.58%, 1000=23.24%, 2000=59.34% lat (msec) : >=2000=1.80% cpu : usr=0.04%, sys=0.26%, ctx=1884, 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=225KiB/s (230kB/s), 56.2KiB/s-56.4KiB/s (57.5kB/s-57.7kB/s), io=40.0MiB (41.9MB), run=181717-182223msec 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=145081: Tue May 12 17:18:23 2026 read: IOPS=10, BW=42.7KiB/s (43.7kB/s)(5048KiB/118343msec) slat (usec): min=59, max=60388, avg=16677.52, stdev=9079.63 clat (msec): min=31, max=1360, avg=465.32, stdev=142.98 lat (msec): min=38, max=1391, avg=482.01, stdev=144.86 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 275], 10.00th=[ 313], 20.00th=[ 359], | 30.00th=[ 393], 40.00th=[ 426], 50.00th=[ 456], 60.00th=[ 485], | 70.00th=[ 518], 80.00th=[ 558], 90.00th=[ 625], 95.00th=[ 701], | 99.00th=[ 844], 99.50th=[ 961], 99.90th=[ 1351], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 7, max= 112, per=25.70%, avg=43.17, stdev=19.73, samples=229 iops : min= 1, max= 28, avg=10.27, stdev= 4.98, samples=229 write: IOPS=10, BW=43.9KiB/s (44.9kB/s)(5192KiB/118343msec); 0 zone resets slat (usec): min=42, max=10367, avg=376.14, stdev=916.13 clat (msec): min=128, max=2033, avg=988.27, stdev=312.24 lat (msec): min=129, max=2034, avg=988.65, stdev=312.24 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 558], 10.00th=[ 642], 20.00th=[ 718], | 30.00th=[ 793], 40.00th=[ 869], 50.00th=[ 953], 60.00th=[ 1036], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1401], 95.00th=[ 1620], | 99.00th=[ 1888], 99.50th=[ 1955], 99.90th=[ 2022], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 108, per=24.85%, avg=43.48, stdev=20.09, samples=233 iops : min= 1, max= 27, avg=10.35, stdev= 5.04, samples=233 lat (msec) : 50=0.23%, 100=0.27%, 250=1.29%, 500=30.94%, 750=27.23% lat (msec) : 1000=17.70%, 2000=22.23%, >=2000=0.12% cpu : usr=0.10%, sys=0.68%, ctx=4433, 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=145082: Tue May 12 17:18:23 2026 read: IOPS=10, BW=41.7KiB/s (42.7kB/s)(4976KiB/119213msec) slat (usec): min=2853, max=64341, avg=16733.09, stdev=9039.41 clat (msec): min=24, max=1017, avg=468.09, stdev=129.11 lat (msec): min=33, max=1026, avg=484.83, stdev=130.29 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 288], 10.00th=[ 334], 20.00th=[ 368], | 30.00th=[ 401], 40.00th=[ 426], 50.00th=[ 456], 60.00th=[ 477], | 70.00th=[ 514], 80.00th=[ 567], 90.00th=[ 625], 95.00th=[ 709], | 99.00th=[ 835], 99.50th=[ 911], 99.90th=[ 969], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 7, max= 96, per=24.74%, avg=41.56, stdev=19.52, samples=234 iops : min= 1, max= 24, avg= 9.87, stdev= 4.91, samples=234 write: IOPS=11, BW=44.2KiB/s (45.2kB/s)(5264KiB/119213msec); 0 zone resets slat (usec): min=42, max=25339, avg=482.32, stdev=1447.19 clat (msec): min=408, max=2045, avg=987.42, stdev=300.10 lat (msec): min=409, max=2045, avg=987.91, stdev=300.12 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 567], 10.00th=[ 642], 20.00th=[ 726], | 30.00th=[ 793], 40.00th=[ 869], 50.00th=[ 953], 60.00th=[ 1036], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1401], 95.00th=[ 1569], | 99.00th=[ 1804], 99.50th=[ 1938], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 102, per=25.24%, avg=44.17, stdev=20.02, samples=233 iops : min= 1, max= 25, avg=10.52, stdev= 5.03, samples=233 lat (msec) : 50=0.12%, 100=0.23%, 250=0.66%, 500=31.95%, 750=26.21% lat (msec) : 1000=18.24%, 2000=22.46%, >=2000=0.12% cpu : usr=0.11%, sys=0.69%, ctx=4498, 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=145083: Tue May 12 17:18:23 2026 read: IOPS=10, BW=41.8KiB/s (42.8kB/s)(4984KiB/119245msec) slat (usec): min=3236, max=63552, avg=16908.68, stdev=9271.21 clat (msec): min=22, max=1036, avg=467.57, stdev=126.28 lat (msec): min=27, max=1053, avg=484.48, stdev=128.11 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 292], 10.00th=[ 330], 20.00th=[ 372], | 30.00th=[ 405], 40.00th=[ 430], 50.00th=[ 456], 60.00th=[ 485], | 70.00th=[ 518], 80.00th=[ 558], 90.00th=[ 625], 95.00th=[ 693], | 99.00th=[ 818], 99.50th=[ 869], 99.90th=[ 995], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7, max= 96, per=25.02%, avg=42.04, stdev=19.78, samples=233 iops : min= 1, max= 24, avg= 9.99, stdev= 4.94, samples=233 write: IOPS=11, BW=44.1KiB/s (45.1kB/s)(5256KiB/119245msec); 0 zone resets slat (usec): min=58, max=40301, avg=404.31, stdev=1570.73 clat (msec): min=354, max=2024, avg=989.12, stdev=295.39 lat (msec): min=354, max=2024, avg=989.53, stdev=295.37 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 575], 10.00th=[ 651], 20.00th=[ 735], | 30.00th=[ 802], 40.00th=[ 869], 50.00th=[ 953], 60.00th=[ 1036], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1401], 95.00th=[ 1586], | 99.00th=[ 1770], 99.50th=[ 1838], 99.90th=[ 2005], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 96, per=24.87%, avg=43.52, stdev=18.38, samples=235 iops : min= 1, max= 24, avg=10.36, stdev= 4.64, samples=235 lat (msec) : 50=0.23%, 100=0.12%, 250=0.90%, 500=31.37%, 750=26.13% lat (msec) : 1000=18.55%, 2000=22.58%, >=2000=0.12% cpu : usr=0.10%, sys=0.72%, ctx=4700, 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=145084: Tue May 12 17:18:23 2026 read: IOPS=10, BW=42.5KiB/s (43.5kB/s)(5060KiB/119017msec) slat (usec): min=3044, max=55391, avg=15975.53, stdev=8442.58 clat (msec): min=23, max=1022, avg=464.96, stdev=129.17 lat (msec): min=35, max=1061, avg=480.94, stdev=130.71 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 292], 10.00th=[ 326], 20.00th=[ 363], | 30.00th=[ 397], 40.00th=[ 426], 50.00th=[ 451], 60.00th=[ 477], | 70.00th=[ 506], 80.00th=[ 558], 90.00th=[ 634], 95.00th=[ 709], | 99.00th=[ 844], 99.50th=[ 902], 99.90th=[ 1011], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 7, max= 102, per=25.09%, avg=42.16, stdev=22.12, samples=235 iops : min= 1, max= 25, avg=10.02, stdev= 5.54, samples=235 write: IOPS=10, BW=43.5KiB/s (44.6kB/s)(5180KiB/119017msec); 0 zone resets slat (usec): min=44, max=15796, avg=344.40, stdev=930.83 clat (msec): min=280, max=2021, avg=997.61, stdev=304.89 lat (msec): min=281, max=2022, avg=997.95, stdev=304.91 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 567], 10.00th=[ 642], 20.00th=[ 726], | 30.00th=[ 802], 40.00th=[ 877], 50.00th=[ 961], 60.00th=[ 1053], | 70.00th=[ 1133], 80.00th=[ 1234], 90.00th=[ 1401], 95.00th=[ 1603], | 99.00th=[ 1787], 99.50th=[ 1905], 99.90th=[ 2022], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 96, per=24.57%, avg=43.00, stdev=19.43, samples=235 iops : min= 1, max= 24, avg=10.23, stdev= 4.86, samples=235 lat (msec) : 50=0.12%, 100=0.12%, 250=0.94%, 500=33.36%, 750=25.27% lat (msec) : 1000=17.03%, 2000=23.09%, >=2000=0.08% cpu : usr=0.11%, sys=0.66%, ctx=4209, 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=168KiB/s (172kB/s), 41.7KiB/s-42.7KiB/s (42.7kB/s-43.7kB/s), io=19.6MiB (20.5MB), run=118343-119245msec WRITE: bw=175KiB/s (179kB/s), 43.5KiB/s-44.2KiB/s (44.6kB/s-45.2kB/s), io=20.4MiB (21.4MB), run=118343-119245msec 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=145105: Tue May 12 17:18:37 2026 read: IOPS=1, BW=53.6MiB/s (56.2MB/s)(40.0MiB/746msec) slat (nsec): min=37332k, max=37332k, avg=37332223.00, stdev= 0.00 clat (nsec): min=684575k, max=684575k, avg=684574590.00, stdev= 0.00 lat (nsec): min=721911k, max=721911k, avg=721911363.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] lat (msec) : 750=100.00% cpu : usr=0.13%, sys=1.48%, ctx=6, 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=53.6MiB/s (56.2MB/s), 53.6MiB/s-53.6MiB/s (56.2MB/s-56.2MB/s), io=40.0MiB (41.9MB), run=746-746msec 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