== sanity test 398c: run fio to test AIO ================= 01:45:52 (1788932752) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.547702 s, 76.6 MB/s osc.lustre-OST0000-osc-ffff9c39c824c800.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=145408: Wed Sep 9 01:48:57 2026 write: IOPS=14, BW=58.7KiB/s (60.2kB/s)(10.0MiB/174301msec); 0 zone resets slat (usec): min=29, max=23643, avg=274.84, stdev=1008.74 clat (msec): min=204, max=2054, avg=1088.15, stdev=280.34 lat (msec): min=204, max=2055, avg=1088.43, stdev=280.35 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 676], 10.00th=[ 768], 20.00th=[ 860], | 30.00th=[ 936], 40.00th=[ 1011], 50.00th=[ 1083], 60.00th=[ 1150], | 70.00th=[ 1217], 80.00th=[ 1318], 90.00th=[ 1452], 95.00th=[ 1569], | 99.00th=[ 1804], 99.50th=[ 1888], 99.90th=[ 2005], 99.95th=[ 2039], | 99.99th=[ 2056] bw ( KiB/s): min= 7, max= 136, per=25.12%, avg=58.77, stdev=29.21, samples=342 iops : min= 1, max= 34, avg=14.23, stdev= 7.31, samples=342 lat (msec) : 250=0.62%, 500=1.88%, 750=6.64%, 1000=29.38%, 2000=61.33% lat (msec) : >=2000=0.16% cpu : usr=0.05%, sys=0.23%, ctx=1918, 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=145409: Wed Sep 9 01:48:57 2026 write: IOPS=14, BW=58.7KiB/s (60.1kB/s)(10.0MiB/174401msec); 0 zone resets slat (usec): min=28, max=18273, avg=248.20, stdev=957.31 clat (msec): min=219, max=2074, avg=1088.95, stdev=282.53 lat (msec): min=219, max=2074, avg=1089.20, stdev=282.55 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 667], 10.00th=[ 751], 20.00th=[ 860], | 30.00th=[ 936], 40.00th=[ 1011], 50.00th=[ 1083], 60.00th=[ 1150], | 70.00th=[ 1234], 80.00th=[ 1334], 90.00th=[ 1469], 95.00th=[ 1552], | 99.00th=[ 1854], 99.50th=[ 1921], 99.90th=[ 1972], 99.95th=[ 1989], | 99.99th=[ 2072] bw ( KiB/s): min= 7, max= 128, per=25.57%, avg=59.84, stdev=30.06, samples=336 iops : min= 1, max= 32, avg=14.49, stdev= 7.55, samples=336 lat (msec) : 250=0.62%, 500=1.37%, 750=8.09%, 1000=28.63%, 2000=61.25% lat (msec) : >=2000=0.04% cpu : usr=0.05%, sys=0.21%, ctx=1786, 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=145410: Wed Sep 9 01:48:57 2026 write: IOPS=14, BW=58.9KiB/s (60.3kB/s)(10.0MiB/173909msec); 0 zone resets slat (usec): min=27, max=13392, avg=284.74, stdev=930.49 clat (msec): min=66, max=2053, avg=1086.14, stdev=285.30 lat (msec): min=66, max=2054, avg=1086.43, stdev=285.29 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 634], 10.00th=[ 760], 20.00th=[ 860], | 30.00th=[ 944], 40.00th=[ 1011], 50.00th=[ 1083], 60.00th=[ 1150], | 70.00th=[ 1217], 80.00th=[ 1318], 90.00th=[ 1469], 95.00th=[ 1536], | 99.00th=[ 1838], 99.50th=[ 1888], 99.90th=[ 1972], 99.95th=[ 2039], | 99.99th=[ 2056] bw ( KiB/s): min= 7, max= 176, per=25.33%, avg=59.27, stdev=27.49, samples=339 iops : min= 1, max= 44, avg=14.35, stdev= 6.89, samples=339 lat (msec) : 100=0.04%, 250=0.47%, 500=2.11%, 750=6.88%, 1000=29.49% lat (msec) : 2000=60.94%, >=2000=0.08% cpu : usr=0.06%, sys=0.23%, ctx=2070, 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=145411: Wed Sep 9 01:48:57 2026 write: IOPS=14, BW=58.8KiB/s (60.2kB/s)(10.0MiB/174232msec); 0 zone resets slat (usec): min=29, max=17321, avg=256.31, stdev=939.52 clat (msec): min=196, max=1963, avg=1087.79, stdev=278.58 lat (msec): min=196, max=1963, avg=1088.05, stdev=278.61 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 659], 10.00th=[ 768], 20.00th=[ 860], | 30.00th=[ 936], 40.00th=[ 1011], 50.00th=[ 1083], 60.00th=[ 1150], | 70.00th=[ 1217], 80.00th=[ 1318], 90.00th=[ 1452], 95.00th=[ 1552], | 99.00th=[ 1804], 99.50th=[ 1871], 99.90th=[ 1955], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 184, per=24.98%, avg=58.45, stdev=26.67, samples=344 iops : min= 1, max= 46, avg=14.15, stdev= 6.69, samples=344 lat (msec) : 250=0.62%, 500=2.11%, 750=5.59%, 1000=30.12%, 2000=61.56% cpu : usr=0.04%, sys=0.21%, ctx=1970, 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=235KiB/s (240kB/s), 58.7KiB/s-58.9KiB/s (60.1kB/s-60.3kB/s), io=40.0MiB (41.9MB), run=173909-174401msec 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=145445: Wed Sep 9 01:50:59 2026 read: IOPS=10, BW=43.0KiB/s (45.0kB/s)(5048KiB/114851msec) slat (usec): min=125, max=59660, avg=15190.75, stdev=8780.53 clat (msec): min=17, max=1101, avg=436.07, stdev=118.33 lat (msec): min=24, max=1118, avg=451.27, stdev=120.07 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 279], 10.00th=[ 313], 20.00th=[ 342], | 30.00th=[ 368], 40.00th=[ 397], 50.00th=[ 418], 60.00th=[ 451], | 70.00th=[ 481], 80.00th=[ 518], 90.00th=[ 592], 95.00th=[ 642], | 99.00th=[ 776], 99.50th=[ 844], 99.90th=[ 1036], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 111, per=25.01%, avg=43.52, stdev=21.04, samples=227 iops : min= 1, max= 27, avg=10.36, stdev= 5.28, samples=227 write: IOPS=11, BW=45.2KiB/s (46.3kB/s)(5192KiB/114851msec); 0 zone resets slat (usec): min=30, max=25492, avg=442.77, stdev=1435.27 clat (msec): min=297, max=2006, avg=974.68, stdev=270.03 lat (msec): min=297, max=2006, avg=975.13, stdev=270.03 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 535], 10.00th=[ 651], 20.00th=[ 751], | 30.00th=[ 818], 40.00th=[ 894], 50.00th=[ 969], 60.00th=[ 1036], | 70.00th=[ 1099], 80.00th=[ 1183], 90.00th=[ 1284], 95.00th=[ 1418], | 99.00th=[ 1754], 99.50th=[ 1787], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 103, per=24.79%, avg=44.88, stdev=20.24, samples=226 iops : min= 1, max= 25, avg=10.70, stdev= 5.07, samples=226 lat (msec) : 20=0.04%, 50=0.12%, 100=0.20%, 250=0.62%, 500=38.05% lat (msec) : 750=19.80%, 1000=17.54%, 2000=23.55%, >=2000=0.08% cpu : usr=0.12%, sys=0.68%, ctx=4455, 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=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=145446: Wed Sep 9 01:50:59 2026 read: IOPS=10, BW=43.2KiB/s (44.3kB/s)(4976KiB/115077msec) slat (usec): min=2905, max=73236, avg=15383.34, stdev=8767.52 clat (msec): min=11, max=924, avg=433.88, stdev=121.04 lat (msec): min=17, max=949, avg=449.28, stdev=122.16 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 275], 10.00th=[ 300], 20.00th=[ 342], | 30.00th=[ 368], 40.00th=[ 397], 50.00th=[ 418], 60.00th=[ 451], | 70.00th=[ 485], 80.00th=[ 523], 90.00th=[ 592], 95.00th=[ 642], | 99.00th=[ 810], 99.50th=[ 835], 99.90th=[ 877], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 103, per=24.43%, avg=42.51, stdev=20.66, samples=229 iops : min= 1, max= 25, avg=10.10, stdev= 5.18, samples=229 write: IOPS=11, BW=45.7KiB/s (46.8kB/s)(5264KiB/115077msec); 0 zone resets slat (usec): min=32, max=25702, avg=415.24, stdev=1395.46 clat (msec): min=57, max=2201, avg=972.32, stdev=279.46 lat (msec): min=57, max=2201, avg=972.74, stdev=279.42 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 518], 10.00th=[ 642], 20.00th=[ 751], | 30.00th=[ 827], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1183], 90.00th=[ 1284], 95.00th=[ 1452], | 99.00th=[ 1838], 99.50th=[ 1955], 99.90th=[ 2089], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 96, per=24.81%, avg=44.90, stdev=19.97, samples=229 iops : min= 1, max= 24, avg=10.70, stdev= 5.04, samples=229 lat (msec) : 20=0.04%, 50=0.04%, 100=0.47%, 250=0.98%, 500=37.11% lat (msec) : 750=19.02%, 1000=19.38%, 2000=22.85%, >=2000=0.12% cpu : usr=0.10%, sys=0.71%, ctx=4688, 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=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=145447: Wed Sep 9 01:50:59 2026 read: IOPS=10, BW=43.4KiB/s (44.5kB/s)(4984KiB/114730msec) slat (usec): min=31, max=63886, avg=15106.47, stdev=8472.23 clat (msec): min=11, max=1102, avg=436.16, stdev=117.72 lat (msec): min=41, max=1112, avg=451.28, stdev=119.32 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 284], 10.00th=[ 305], 20.00th=[ 342], | 30.00th=[ 372], 40.00th=[ 397], 50.00th=[ 418], 60.00th=[ 447], | 70.00th=[ 481], 80.00th=[ 518], 90.00th=[ 592], 95.00th=[ 659], | 99.00th=[ 810], 99.50th=[ 835], 99.90th=[ 953], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 103, per=25.00%, avg=43.51, stdev=19.45, samples=225 iops : min= 1, max= 25, avg=10.36, stdev= 4.88, samples=225 write: IOPS=11, BW=45.8KiB/s (46.9kB/s)(5256KiB/114730msec); 0 zone resets slat (usec): min=32, max=15339, avg=363.42, stdev=1029.65 clat (msec): min=225, max=2143, avg=967.86, stdev=282.21 lat (msec): min=225, max=2143, avg=968.23, stdev=282.18 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 518], 10.00th=[ 617], 20.00th=[ 751], | 30.00th=[ 818], 40.00th=[ 885], 50.00th=[ 969], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1167], 90.00th=[ 1301], 95.00th=[ 1418], | 99.00th=[ 1838], 99.50th=[ 1955], 99.90th=[ 2106], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 7, max= 103, per=25.00%, avg=45.26, stdev=20.02, samples=226 iops : min= 1, max= 25, avg=10.79, stdev= 5.00, samples=226 lat (msec) : 20=0.04%, 50=0.12%, 100=0.04%, 250=0.62%, 500=38.48% lat (msec) : 750=18.79%, 1000=18.83%, 2000=22.89%, >=2000=0.20% cpu : usr=0.12%, sys=0.69%, ctx=4597, 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=145448: Wed Sep 9 01:50:59 2026 read: IOPS=11, BW=44.0KiB/s (45.1kB/s)(5060KiB/114900msec) slat (usec): min=3176, max=72167, avg=15260.86, stdev=8616.15 clat (msec): min=14, max=1005, avg=441.23, stdev=115.90 lat (msec): min=20, max=1011, avg=456.50, stdev=117.36 clat percentiles (msec): | 1.00th=[ 247], 5.00th=[ 288], 10.00th=[ 313], 20.00th=[ 347], | 30.00th=[ 372], 40.00th=[ 401], 50.00th=[ 426], 60.00th=[ 456], | 70.00th=[ 485], 80.00th=[ 527], 90.00th=[ 592], 95.00th=[ 659], | 99.00th=[ 793], 99.50th=[ 827], 99.90th=[ 885], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7, max= 119, per=25.51%, avg=44.38, stdev=19.50, samples=223 iops : min= 1, max= 29, avg=10.57, stdev= 4.91, samples=223 write: IOPS=11, BW=45.1KiB/s (46.2kB/s)(5180KiB/114900msec); 0 zone resets slat (usec): min=31, max=14799, avg=349.50, stdev=912.21 clat (msec): min=262, max=2211, avg=971.15, stdev=277.06 lat (msec): min=266, max=2211, avg=971.50, stdev=277.08 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 523], 10.00th=[ 642], 20.00th=[ 751], | 30.00th=[ 818], 40.00th=[ 894], 50.00th=[ 961], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1167], 90.00th=[ 1284], 95.00th=[ 1435], | 99.00th=[ 1787], 99.50th=[ 2022], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 112, per=24.64%, avg=44.60, stdev=20.20, samples=227 iops : min= 1, max= 28, avg=10.63, stdev= 5.08, samples=227 lat (msec) : 20=0.04%, 100=0.12%, 250=0.51%, 500=38.12%, 750=19.77% lat (msec) : 1000=18.75%, 2000=22.42%, >=2000=0.27% cpu : usr=0.12%, sys=0.68%, ctx=4880, 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=174KiB/s (179kB/s), 43.2KiB/s-44.0KiB/s (44.3kB/s-45.1kB/s), io=19.6MiB (20.5MB), run=114730-115077msec WRITE: bw=182KiB/s (186kB/s), 45.1KiB/s-45.8KiB/s (46.2kB/s-46.9kB/s), io=20.4MiB (21.4MB), run=114730-115077msec 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=145472: Wed Sep 9 01:51:10 2026 read: IOPS=1, BW=70.3MiB/s (73.7MB/s)(40.0MiB/569msec) slat (nsec): min=39483k, max=39483k, avg=39483312.00, stdev= 0.00 clat (nsec): min=489328k, max=489328k, avg=489327624.00, stdev= 0.00 lat (nsec): min=528877k, max=528877k, avg=528877116.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 489], 10.00th=[ 489], 20.00th=[ 489], | 30.00th=[ 489], 40.00th=[ 489], 50.00th=[ 489], 60.00th=[ 489], | 70.00th=[ 489], 80.00th=[ 489], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.29%, ctx=42, majf=0, minf=7 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=70.3MiB/s (73.7MB/s), 70.3MiB/s-70.3MiB/s (73.7MB/s-73.7MB/s), io=40.0MiB (41.9MB), run=569-569msec 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