== sanity test 398c: run fio to test AIO ================= 19:30:28 (1789687828) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.57981 s, 72.3 MB/s osc.lustre-OST0000-osc-ffff9f118329b800.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=146102: Thu Sep 17 19:33:14 2026 write: IOPS=16, BW=66.5KiB/s (68.1kB/s)(10.0MiB/153955msec); 0 zone resets slat (usec): min=22, max=16496, avg=166.09, stdev=654.09 clat (msec): min=204, max=1822, avg=960.45, stdev=254.45 lat (msec): min=204, max=1822, avg=960.62, stdev=254.44 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 550], 10.00th=[ 667], 20.00th=[ 760], | 30.00th=[ 835], 40.00th=[ 885], 50.00th=[ 953], 60.00th=[ 1020], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1301], 95.00th=[ 1401], | 99.00th=[ 1569], 99.50th=[ 1703], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7, max= 256, per=25.42%, avg=67.63, stdev=32.07, samples=298 iops : min= 1, max= 64, avg=16.46, stdev= 8.07, samples=298 lat (msec) : 250=1.25%, 500=1.68%, 750=15.39%, 1000=39.30%, 2000=42.38% cpu : usr=0.04%, sys=0.20%, ctx=1663, 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=146103: Thu Sep 17 19:33:14 2026 write: IOPS=16, BW=66.7KiB/s (68.3kB/s)(10.0MiB/153602msec); 0 zone resets slat (usec): min=22, max=25558, avg=185.99, stdev=891.90 clat (msec): min=148, max=1851, avg=958.33, stdev=249.78 lat (msec): min=148, max=1851, avg=958.52, stdev=249.78 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 567], 10.00th=[ 667], 20.00th=[ 776], | 30.00th=[ 844], 40.00th=[ 902], 50.00th=[ 953], 60.00th=[ 1011], | 70.00th=[ 1083], 80.00th=[ 1150], 90.00th=[ 1284], 95.00th=[ 1368], | 99.00th=[ 1552], 99.50th=[ 1603], 99.90th=[ 1821], 99.95th=[ 1838], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 256, per=25.69%, avg=68.33, stdev=29.70, samples=295 iops : min= 1, max= 64, avg=16.63, stdev= 7.48, samples=295 lat (msec) : 250=1.64%, 500=1.64%, 750=14.06%, 1000=41.21%, 2000=41.45% cpu : usr=0.04%, sys=0.22%, ctx=1843, 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=146104: Thu Sep 17 19:33:14 2026 write: IOPS=16, BW=66.6KiB/s (68.2kB/s)(10.0MiB/153819msec); 0 zone resets slat (usec): min=21, max=24484, avg=186.19, stdev=837.99 clat (msec): min=208, max=1851, avg=959.84, stdev=254.38 lat (msec): min=208, max=1851, avg=960.03, stdev=254.37 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 558], 10.00th=[ 659], 20.00th=[ 760], | 30.00th=[ 835], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1011], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1301], 95.00th=[ 1385], | 99.00th=[ 1569], 99.50th=[ 1636], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 256, per=25.08%, avg=66.72, stdev=29.96, samples=302 iops : min= 1, max= 64, avg=16.24, stdev= 7.50, samples=302 lat (msec) : 250=0.70%, 500=1.76%, 750=16.21%, 1000=39.53%, 2000=41.80% cpu : usr=0.04%, sys=0.20%, ctx=1832, 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=146105: Thu Sep 17 19:33:14 2026 write: IOPS=16, BW=66.7KiB/s (68.3kB/s)(10.0MiB/153597msec); 0 zone resets slat (usec): min=22, max=28825, avg=183.28, stdev=839.81 clat (msec): min=129, max=1826, avg=959.39, stdev=248.34 lat (msec): min=131, max=1826, avg=959.57, stdev=248.33 clat percentiles (msec): | 1.00th=[ 247], 5.00th=[ 558], 10.00th=[ 667], 20.00th=[ 768], | 30.00th=[ 835], 40.00th=[ 902], 50.00th=[ 953], 60.00th=[ 1011], | 70.00th=[ 1070], 80.00th=[ 1167], 90.00th=[ 1267], 95.00th=[ 1385], | 99.00th=[ 1536], 99.50th=[ 1569], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7, max= 192, per=25.24%, avg=67.15, stdev=26.26, samples=300 iops : min= 1, max= 48, avg=16.34, stdev= 6.61, samples=300 lat (msec) : 250=1.02%, 500=2.46%, 750=13.59%, 1000=40.08%, 2000=42.85% cpu : usr=0.05%, sys=0.21%, ctx=1783, 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=266KiB/s (272kB/s), 66.5KiB/s-66.7KiB/s (68.1kB/s-68.3kB/s), io=40.0MiB (41.9MB), run=153597-153955msec 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=146137: Thu Sep 17 19:35:12 2026 read: IOPS=11, BW=46.2KiB/s (47.3kB/s)(5048KiB/109272msec) slat (usec): min=2839, max=62344, avg=14411.20, stdev=8222.15 clat (msec): min=67, max=946, avg=435.49, stdev=122.54 lat (msec): min=84, max=970, avg=449.91, stdev=124.46 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 275], 10.00th=[ 300], 20.00th=[ 334], | 30.00th=[ 359], 40.00th=[ 388], 50.00th=[ 418], 60.00th=[ 451], | 70.00th=[ 485], 80.00th=[ 531], 90.00th=[ 592], 95.00th=[ 667], | 99.00th=[ 827], 99.50th=[ 844], 99.90th=[ 936], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 119, per=24.85%, avg=45.48, stdev=20.85, samples=217 iops : min= 1, max= 29, avg=10.87, stdev= 5.27, samples=217 write: IOPS=11, BW=47.5KiB/s (48.7kB/s)(5192KiB/109272msec); 0 zone resets slat (usec): min=24, max=25778, avg=252.81, stdev=1227.05 clat (msec): min=308, max=2009, avg=906.48, stdev=268.35 lat (msec): min=308, max=2009, avg=906.74, stdev=268.32 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 485], 10.00th=[ 575], 20.00th=[ 667], | 30.00th=[ 751], 40.00th=[ 827], 50.00th=[ 885], 60.00th=[ 953], | 70.00th=[ 1028], 80.00th=[ 1133], 90.00th=[ 1284], 95.00th=[ 1385], | 99.00th=[ 1569], 99.50th=[ 1636], 99.90th=[ 1838], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 112, per=24.83%, avg=47.17, stdev=20.23, samples=216 iops : min= 1, max= 28, avg=11.30, stdev= 5.10, samples=216 lat (msec) : 100=0.08%, 250=1.21%, 500=38.59%, 750=23.40%, 1000=20.08% lat (msec) : 2000=16.60%, >=2000=0.04% cpu : usr=0.09%, sys=0.55%, ctx=4101, 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=146138: Thu Sep 17 19:35:12 2026 read: IOPS=11, BW=45.5KiB/s (46.6kB/s)(4976KiB/109315msec) slat (usec): min=24, max=59420, avg=14271.18, stdev=8172.72 clat (msec): min=15, max=998, avg=432.69, stdev=128.00 lat (msec): min=16, max=1011, avg=446.97, stdev=129.78 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 259], 10.00th=[ 296], 20.00th=[ 338], | 30.00th=[ 363], 40.00th=[ 388], 50.00th=[ 414], 60.00th=[ 443], | 70.00th=[ 477], 80.00th=[ 531], 90.00th=[ 592], 95.00th=[ 659], | 99.00th=[ 844], 99.50th=[ 911], 99.90th=[ 953], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7, max= 127, per=24.82%, avg=45.43, stdev=22.56, samples=214 iops : min= 1, max= 31, avg=10.86, stdev= 5.66, samples=214 write: IOPS=12, BW=48.2KiB/s (49.3kB/s)(5264KiB/109315msec); 0 zone resets slat (usec): min=23, max=29586, avg=208.88, stdev=919.86 clat (msec): min=127, max=2005, avg=905.54, stdev=272.35 lat (msec): min=130, max=2005, avg=905.75, stdev=272.36 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 464], 10.00th=[ 558], 20.00th=[ 667], | 30.00th=[ 760], 40.00th=[ 827], 50.00th=[ 894], 60.00th=[ 953], | 70.00th=[ 1045], 80.00th=[ 1133], 90.00th=[ 1284], 95.00th=[ 1368], | 99.00th=[ 1536], 99.50th=[ 1636], 99.90th=[ 1703], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 96, per=25.04%, avg=47.59, stdev=21.16, samples=217 iops : min= 1, max= 24, avg=11.40, stdev= 5.33, samples=217 lat (msec) : 20=0.04%, 50=0.16%, 100=0.16%, 250=1.45%, 500=38.20% lat (msec) : 750=22.27%, 1000=19.92%, 2000=17.77%, >=2000=0.04% cpu : usr=0.11%, sys=0.63%, ctx=4467, 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=146139: Thu Sep 17 19:35:12 2026 read: IOPS=11, BW=45.5KiB/s (46.6kB/s)(4984KiB/109496msec) slat (usec): min=2688, max=65433, avg=14484.33, stdev=8339.10 clat (msec): min=34, max=921, avg=431.07, stdev=126.11 lat (msec): min=43, max=949, avg=445.56, stdev=128.06 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 266], 10.00th=[ 288], 20.00th=[ 330], | 30.00th=[ 359], 40.00th=[ 388], 50.00th=[ 414], 60.00th=[ 443], | 70.00th=[ 481], 80.00th=[ 531], 90.00th=[ 600], 95.00th=[ 667], | 99.00th=[ 810], 99.50th=[ 852], 99.90th=[ 885], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 120, per=24.72%, avg=45.23, stdev=23.08, samples=214 iops : min= 1, max= 30, avg=10.81, stdev= 5.84, samples=214 write: IOPS=12, BW=48.0KiB/s (49.2kB/s)(5256KiB/109496msec); 0 zone resets slat (usec): min=30, max=35512, avg=252.16, stdev=1334.74 clat (msec): min=71, max=1863, avg=908.43, stdev=279.85 lat (msec): min=71, max=1863, avg=908.69, stdev=279.83 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 460], 10.00th=[ 558], 20.00th=[ 676], | 30.00th=[ 751], 40.00th=[ 835], 50.00th=[ 902], 60.00th=[ 969], | 70.00th=[ 1045], 80.00th=[ 1150], 90.00th=[ 1267], 95.00th=[ 1368], | 99.00th=[ 1603], 99.50th=[ 1653], 99.90th=[ 1821], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 152, per=24.79%, avg=47.11, stdev=22.76, samples=216 iops : min= 1, max= 38, avg=11.28, stdev= 5.74, samples=216 lat (msec) : 50=0.04%, 100=0.27%, 250=2.15%, 500=37.07%, 750=23.79% lat (msec) : 1000=18.67%, 2000=18.01% cpu : usr=0.10%, sys=0.57%, ctx=4423, 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=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=146140: Thu Sep 17 19:35:12 2026 read: IOPS=11, BW=46.4KiB/s (47.6kB/s)(5060KiB/108967msec) slat (usec): min=2692, max=84246, avg=14442.91, stdev=8733.08 clat (msec): min=14, max=989, avg=434.63, stdev=130.44 lat (msec): min=19, max=1001, avg=449.08, stdev=132.37 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 259], 10.00th=[ 292], 20.00th=[ 334], | 30.00th=[ 363], 40.00th=[ 393], 50.00th=[ 418], 60.00th=[ 447], | 70.00th=[ 489], 80.00th=[ 535], 90.00th=[ 592], 95.00th=[ 667], | 99.00th=[ 827], 99.50th=[ 852], 99.90th=[ 953], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 119, per=25.39%, avg=46.47, stdev=20.87, samples=214 iops : min= 1, max= 29, avg=11.13, stdev= 5.28, samples=214 write: IOPS=11, BW=47.5KiB/s (48.7kB/s)(5180KiB/108967msec); 0 zone resets slat (usec): min=23, max=23831, avg=211.37, stdev=816.06 clat (msec): min=187, max=1843, avg=905.27, stdev=264.83 lat (msec): min=187, max=1843, avg=905.48, stdev=264.83 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 485], 10.00th=[ 558], 20.00th=[ 684], | 30.00th=[ 760], 40.00th=[ 827], 50.00th=[ 894], 60.00th=[ 961], | 70.00th=[ 1028], 80.00th=[ 1133], 90.00th=[ 1267], 95.00th=[ 1351], | 99.00th=[ 1586], 99.50th=[ 1636], 99.90th=[ 1770], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 7, max= 127, per=24.60%, avg=46.75, stdev=21.63, samples=216 iops : min= 1, max= 31, avg=11.19, stdev= 5.47, samples=216 lat (msec) : 20=0.08%, 50=0.08%, 100=0.23%, 250=1.80%, 500=37.15% lat (msec) : 750=23.36%, 1000=20.43%, 2000=16.88% cpu : usr=0.10%, sys=0.61%, ctx=4568, 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=183KiB/s (188kB/s), 45.5KiB/s-46.4KiB/s (46.6kB/s-47.6kB/s), io=19.6MiB (20.5MB), run=108967-109496msec WRITE: bw=191KiB/s (195kB/s), 47.5KiB/s-48.2KiB/s (48.7kB/s-49.3kB/s), io=20.4MiB (21.4MB), run=108967-109496msec 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=146162: Thu Sep 17 19:35:23 2026 read: IOPS=1, BW=74.2MiB/s (77.8MB/s)(40.0MiB/539msec) slat (nsec): min=28154k, max=28154k, avg=28154239.00, stdev= 0.00 clat (nsec): min=488964k, max=488964k, avg=488963971.00, stdev= 0.00 lat (nsec): min=517123k, max=517123k, avg=517122667.00, 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=2.42%, ctx=35, 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=74.2MiB/s (77.8MB/s), 74.2MiB/s-74.2MiB/s (77.8MB/s-77.8MB/s), io=40.0MiB (41.9MB), run=539-539msec 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