== sanity test 398c: run fio to test AIO ================= 20:39:36 (1789605576) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.372311 s, 113 MB/s osc.lustre-OST0000-osc-ffff9e0807a30800.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=145808: Wed Sep 16 20:42:34 2026 write: IOPS=15, BW=60.3KiB/s (61.8kB/s)(10.0MiB/169725msec); 0 zone resets slat (usec): min=23, max=15388, avg=211.18, stdev=841.63 clat (msec): min=210, max=2496, avg=1059.86, stdev=309.81 lat (msec): min=210, max=2496, avg=1060.08, stdev=309.81 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 609], 10.00th=[ 693], 20.00th=[ 793], | 30.00th=[ 894], 40.00th=[ 978], 50.00th=[ 1028], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1318], 90.00th=[ 1469], 95.00th=[ 1620], | 99.00th=[ 1888], 99.50th=[ 1938], 99.90th=[ 2433], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 168, per=25.70%, avg=61.94, stdev=30.40, samples=325 iops : min= 1, max= 42, avg=15.00, stdev= 7.62, samples=325 lat (msec) : 250=0.62%, 500=1.05%, 750=13.48%, 1000=28.52%, 2000=56.05% lat (msec) : >=2000=0.27% cpu : usr=0.04%, sys=0.19%, ctx=1614, 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=145809: Wed Sep 16 20:42:34 2026 write: IOPS=15, BW=60.3KiB/s (61.7kB/s)(10.0MiB/169879msec); 0 zone resets slat (usec): min=24, max=16310, avg=228.85, stdev=914.95 clat (msec): min=298, max=2289, avg=1060.69, stdev=306.29 lat (msec): min=298, max=2290, avg=1060.92, stdev=306.29 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 609], 10.00th=[ 684], 20.00th=[ 802], | 30.00th=[ 894], 40.00th=[ 969], 50.00th=[ 1028], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1301], 90.00th=[ 1485], 95.00th=[ 1603], | 99.00th=[ 1905], 99.50th=[ 1955], 99.90th=[ 2198], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 152, per=25.30%, avg=60.98, stdev=28.91, samples=330 iops : min= 1, max= 38, avg=14.77, stdev= 7.27, samples=330 lat (msec) : 500=2.50%, 750=12.54%, 1000=28.87%, 2000=55.98%, >=2000=0.12% cpu : usr=0.05%, sys=0.22%, ctx=2119, 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=145810: Wed Sep 16 20:42:34 2026 write: IOPS=15, BW=60.4KiB/s (61.9kB/s)(10.0MiB/169450msec); 0 zone resets slat (usec): min=22, max=17457, avg=224.57, stdev=916.29 clat (msec): min=70, max=2438, avg=1058.29, stdev=305.05 lat (msec): min=79, max=2438, avg=1058.53, stdev=305.06 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 617], 10.00th=[ 684], 20.00th=[ 802], | 30.00th=[ 902], 40.00th=[ 969], 50.00th=[ 1036], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1301], 90.00th=[ 1435], 95.00th=[ 1603], | 99.00th=[ 1888], 99.50th=[ 1955], 99.90th=[ 2198], 99.95th=[ 2265], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 128, per=26.44%, avg=63.72, stdev=33.09, samples=316 iops : min= 1, max= 32, avg=15.46, stdev= 8.29, samples=316 lat (msec) : 100=0.04%, 250=0.59%, 500=1.37%, 750=12.81%, 1000=28.91% lat (msec) : 2000=55.94%, >=2000=0.35% cpu : usr=0.04%, sys=0.21%, ctx=1826, 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=145811: Wed Sep 16 20:42:34 2026 write: IOPS=15, BW=60.3KiB/s (61.7kB/s)(10.0MiB/169879msec); 0 zone resets slat (usec): min=22, max=22046, avg=213.74, stdev=898.67 clat (msec): min=366, max=2004, avg=1060.92, stdev=294.04 lat (msec): min=366, max=2004, avg=1061.13, stdev=294.02 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 600], 10.00th=[ 693], 20.00th=[ 810], | 30.00th=[ 902], 40.00th=[ 978], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1469], 95.00th=[ 1603], | 99.00th=[ 1888], 99.50th=[ 1905], 99.90th=[ 1989], 99.95th=[ 1989], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 135, per=25.48%, avg=61.40, stdev=30.06, samples=328 iops : min= 1, max= 33, avg=14.87, stdev= 7.54, samples=328 lat (msec) : 500=1.17%, 750=13.95%, 1000=27.81%, 2000=57.03%, >=2000=0.04% cpu : usr=0.05%, sys=0.21%, ctx=2114, 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 Run status group 0 (all jobs): WRITE: bw=241KiB/s (247kB/s), 60.3KiB/s-60.4KiB/s (61.7kB/s-61.9kB/s), io=40.0MiB (41.9MB), run=169450-169879msec 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=145846: Wed Sep 16 20:44:29 2026 read: IOPS=11, BW=47.9KiB/s (49.0kB/s)(5048KiB/105488msec) slat (usec): min=2551, max=78765, avg=13647.17, stdev=8165.61 clat (msec): min=17, max=970, avg=406.70, stdev=132.69 lat (msec): min=37, max=983, avg=420.36, stdev=134.88 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 215], 10.00th=[ 249], 20.00th=[ 300], | 30.00th=[ 342], 40.00th=[ 368], 50.00th=[ 393], 60.00th=[ 418], | 70.00th=[ 451], 80.00th=[ 502], 90.00th=[ 584], 95.00th=[ 651], | 99.00th=[ 802], 99.50th=[ 852], 99.90th=[ 944], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 7, max= 135, per=25.03%, avg=47.55, stdev=23.62, samples=208 iops : min= 1, max= 33, avg=11.40, stdev= 5.92, samples=208 write: IOPS=12, BW=49.2KiB/s (50.4kB/s)(5192KiB/105488msec); 0 zone resets slat (usec): min=26, max=12004, avg=250.41, stdev=756.14 clat (msec): min=103, max=1895, avg=888.25, stdev=300.63 lat (msec): min=103, max=1895, avg=888.50, stdev=300.63 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 464], 10.00th=[ 542], 20.00th=[ 651], | 30.00th=[ 726], 40.00th=[ 785], 50.00th=[ 844], 60.00th=[ 919], | 70.00th=[ 1003], 80.00th=[ 1116], 90.00th=[ 1301], 95.00th=[ 1469], | 99.00th=[ 1754], 99.50th=[ 1821], 99.90th=[ 1888], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 7, max= 126, per=24.60%, avg=48.71, stdev=22.16, samples=208 iops : min= 1, max= 31, avg=11.69, stdev= 5.59, samples=208 lat (msec) : 20=0.04%, 50=0.04%, 100=0.12%, 250=5.23%, 500=37.50% lat (msec) : 750=22.85%, 1000=18.75%, 2000=15.47% cpu : usr=0.12%, sys=0.64%, ctx=4838, 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=145847: Wed Sep 16 20:44:29 2026 read: IOPS=11, BW=47.2KiB/s (48.4kB/s)(4976KiB/105378msec) slat (usec): min=34, max=87283, avg=13524.01, stdev=8496.72 clat (msec): min=13, max=987, avg=410.40, stdev=142.05 lat (msec): min=22, max=999, avg=423.93, stdev=143.80 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 209], 10.00th=[ 251], 20.00th=[ 305], | 30.00th=[ 334], 40.00th=[ 363], 50.00th=[ 393], 60.00th=[ 422], | 70.00th=[ 460], 80.00th=[ 514], 90.00th=[ 617], 95.00th=[ 684], | 99.00th=[ 827], 99.50th=[ 852], 99.90th=[ 902], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 181, per=24.82%, avg=47.15, stdev=23.99, samples=207 iops : min= 1, max= 45, avg=11.31, stdev= 6.03, samples=207 write: IOPS=12, BW=49.0KiB/s (51.2kB/s)(5264KiB/105378msec); 0 zone resets slat (usec): min=27, max=17484, avg=266.33, stdev=951.95 clat (msec): min=157, max=1952, avg=879.38, stdev=292.92 lat (msec): min=157, max=1952, avg=879.65, stdev=292.90 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 439], 10.00th=[ 535], 20.00th=[ 651], | 30.00th=[ 743], 40.00th=[ 802], 50.00th=[ 844], 60.00th=[ 902], | 70.00th=[ 1003], 80.00th=[ 1099], 90.00th=[ 1267], 95.00th=[ 1385], | 99.00th=[ 1787], 99.50th=[ 1871], 99.90th=[ 1955], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 7, max= 136, per=24.88%, avg=49.25, stdev=24.51, samples=209 iops : min= 1, max= 34, avg=11.83, stdev= 6.16, samples=209 lat (msec) : 20=0.12%, 50=0.12%, 100=0.20%, 250=5.16%, 500=36.80% lat (msec) : 750=21.56%, 1000=20.27%, 2000=15.78% cpu : usr=0.12%, sys=0.62%, ctx=4839, 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=145848: Wed Sep 16 20:44:29 2026 read: IOPS=11, BW=47.3KiB/s (48.5kB/s)(4984KiB/105318msec) slat (usec): min=2596, max=57194, avg=13741.35, stdev=8106.08 clat (msec): min=19, max=917, avg=401.48, stdev=133.45 lat (msec): min=29, max=946, avg=415.23, stdev=135.25 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 211], 10.00th=[ 251], 20.00th=[ 296], | 30.00th=[ 330], 40.00th=[ 359], 50.00th=[ 384], 60.00th=[ 409], | 70.00th=[ 443], 80.00th=[ 498], 90.00th=[ 592], 95.00th=[ 659], | 99.00th=[ 768], 99.50th=[ 852], 99.90th=[ 911], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 126, per=24.71%, avg=46.94, stdev=25.60, samples=209 iops : min= 1, max= 31, avg=11.25, stdev= 6.40, samples=209 write: IOPS=12, BW=49.9KiB/s (51.1kB/s)(5256KiB/105318msec); 0 zone resets slat (usec): min=27, max=24685, avg=230.86, stdev=923.14 clat (msec): min=106, max=1946, avg=885.51, stdev=296.86 lat (msec): min=106, max=1946, avg=885.74, stdev=296.84 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 464], 10.00th=[ 550], 20.00th=[ 651], | 30.00th=[ 726], 40.00th=[ 793], 50.00th=[ 852], 60.00th=[ 911], | 70.00th=[ 995], 80.00th=[ 1133], 90.00th=[ 1301], 95.00th=[ 1418], | 99.00th=[ 1737], 99.50th=[ 1871], 99.90th=[ 1955], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 7, max= 134, per=24.77%, avg=49.05, stdev=23.96, samples=209 iops : min= 1, max= 33, avg=11.78, stdev= 6.01, samples=209 lat (msec) : 20=0.04%, 100=0.27%, 250=5.12%, 500=37.38%, 750=22.77% lat (msec) : 1000=19.34%, 2000=15.08% cpu : usr=0.12%, sys=0.59%, ctx=4666, 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=145849: Wed Sep 16 20:44:29 2026 read: IOPS=12, BW=48.0KiB/s (49.2kB/s)(5060KiB/105320msec) slat (usec): min=1922, max=55966, avg=13713.32, stdev=7869.12 clat (msec): min=7, max=1348, avg=406.10, stdev=142.71 lat (msec): min=13, max=1355, avg=419.82, stdev=144.46 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 213], 10.00th=[ 245], 20.00th=[ 292], | 30.00th=[ 334], 40.00th=[ 363], 50.00th=[ 393], 60.00th=[ 422], | 70.00th=[ 451], 80.00th=[ 502], 90.00th=[ 592], 95.00th=[ 659], | 99.00th=[ 827], 99.50th=[ 936], 99.90th=[ 1250], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 158, per=25.40%, avg=48.26, stdev=23.50, samples=206 iops : min= 1, max= 39, avg=11.58, stdev= 5.88, samples=206 write: IOPS=12, BW=49.2KiB/s (50.4kB/s)(5180KiB/105320msec); 0 zone resets slat (usec): min=26, max=18260, avg=244.99, stdev=885.76 clat (msec): min=177, max=1967, avg=887.70, stdev=296.97 lat (msec): min=177, max=1967, avg=887.95, stdev=296.93 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 460], 10.00th=[ 550], 20.00th=[ 651], | 30.00th=[ 735], 40.00th=[ 785], 50.00th=[ 852], 60.00th=[ 919], | 70.00th=[ 995], 80.00th=[ 1116], 90.00th=[ 1284], 95.00th=[ 1452], | 99.00th=[ 1838], 99.50th=[ 1854], 99.90th=[ 1938], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 111, per=24.70%, avg=48.91, stdev=21.36, samples=207 iops : min= 1, max= 27, avg=11.73, stdev= 5.35, samples=207 lat (msec) : 10=0.08%, 50=0.12%, 100=0.20%, 250=5.70%, 500=36.68% lat (msec) : 750=22.50%, 1000=19.53%, 2000=15.20% cpu : usr=0.12%, sys=0.63%, ctx=4599, 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=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=190KiB/s (195kB/s), 47.2KiB/s-48.0KiB/s (48.4kB/s-49.2kB/s), io=19.6MiB (20.5MB), run=105318-105488msec WRITE: bw=198KiB/s (203kB/s), 49.2KiB/s-49.0KiB/s (50.4kB/s-51.2kB/s), io=20.4MiB (21.4MB), run=105318-105488msec 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=145869: Wed Sep 16 20:44:44 2026 read: IOPS=1, BW=53.5MiB/s (56.1MB/s)(40.0MiB/748msec) slat (nsec): min=56213k, max=56213k, avg=56212679.00, stdev= 0.00 clat (nsec): min=659690k, max=659690k, avg=659690245.00, stdev= 0.00 lat (nsec): min=715911k, max=715911k, avg=715910540.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 659], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] lat (msec) : 750=100.00% cpu : usr=0.54%, sys=3.48%, ctx=44, 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=53.5MiB/s (56.1MB/s), 53.5MiB/s-53.5MiB/s (56.1MB/s-56.1MB/s), io=40.0MiB (41.9MB), run=748-748msec 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