== sanity test 398c: run fio to test AIO ================= 11:37:12 (1789141032) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.8577 s, 48.9 MB/s osc.lustre-OST0000-osc-ffff9dbf4881d000.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=145212: Fri Sep 11 11:40:37 2026 write: IOPS=13, BW=53.6KiB/s (54.9kB/s)(10.0MiB/190965msec); 0 zone resets slat (usec): min=25, max=22486, avg=333.34, stdev=1261.50 clat (msec): min=229, max=2646, avg=1192.72, stdev=380.17 lat (msec): min=229, max=2647, avg=1193.06, stdev=380.19 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 684], 10.00th=[ 810], 20.00th=[ 911], | 30.00th=[ 986], 40.00th=[ 1053], 50.00th=[ 1133], 60.00th=[ 1200], | 70.00th=[ 1301], 80.00th=[ 1452], 90.00th=[ 1720], 95.00th=[ 1972], | 99.00th=[ 2265], 99.50th=[ 2534], 99.90th=[ 2601], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 7, max= 128, per=26.85%, avg=57.46, stdev=31.84, samples=350 iops : min= 1, max= 32, avg=13.87, stdev= 7.96, samples=350 lat (msec) : 250=0.59%, 500=0.74%, 750=5.31%, 1000=25.74%, 2000=63.05% lat (msec) : >=2000=4.57% cpu : usr=0.07%, sys=0.26%, ctx=1761, 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=145213: Fri Sep 11 11:40:37 2026 write: IOPS=13, BW=53.6KiB/s (54.9kB/s)(10.0MiB/191124msec); 0 zone resets slat (usec): min=23, max=23549, avg=355.65, stdev=1368.65 clat (msec): min=156, max=2686, avg=1193.75, stdev=368.07 lat (msec): min=156, max=2686, avg=1194.11, stdev=368.09 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 701], 10.00th=[ 818], 20.00th=[ 919], | 30.00th=[ 986], 40.00th=[ 1053], 50.00th=[ 1133], 60.00th=[ 1200], | 70.00th=[ 1334], 80.00th=[ 1452], 90.00th=[ 1670], 95.00th=[ 1905], | 99.00th=[ 2366], 99.50th=[ 2534], 99.90th=[ 2668], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 7, max= 128, per=25.66%, avg=54.92, stdev=28.75, samples=365 iops : min= 1, max= 32, avg=13.23, stdev= 7.21, samples=365 lat (msec) : 250=0.08%, 500=1.13%, 750=5.04%, 1000=26.02%, 2000=64.34% lat (msec) : >=2000=3.40% cpu : usr=0.04%, sys=0.25%, ctx=1765, 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=145214: Fri Sep 11 11:40:37 2026 write: IOPS=13, BW=53.6KiB/s (54.9kB/s)(10.0MiB/191157msec); 0 zone resets slat (usec): min=24, max=23602, avg=373.02, stdev=1485.29 clat (msec): min=310, max=2895, avg=1193.02, stdev=371.09 lat (msec): min=310, max=2895, avg=1193.39, stdev=371.16 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 701], 10.00th=[ 802], 20.00th=[ 911], | 30.00th=[ 986], 40.00th=[ 1062], 50.00th=[ 1133], 60.00th=[ 1200], | 70.00th=[ 1318], 80.00th=[ 1452], 90.00th=[ 1670], 95.00th=[ 1905], | 99.00th=[ 2467], 99.50th=[ 2534], 99.90th=[ 2735], 99.95th=[ 2802], | 99.99th=[ 2903] bw ( KiB/s): min= 7, max= 128, per=25.54%, avg=54.66, stdev=26.62, samples=367 iops : min= 1, max= 32, avg=13.17, stdev= 6.69, samples=367 lat (msec) : 500=0.66%, 750=6.05%, 1000=24.80%, 2000=65.00%, >=2000=3.48% cpu : usr=0.06%, sys=0.27%, ctx=1892, 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=145215: Fri Sep 11 11:40:37 2026 write: IOPS=13, BW=53.6KiB/s (54.9kB/s)(10.0MiB/191158msec); 0 zone resets slat (usec): min=23, max=28054, avg=354.42, stdev=1541.65 clat (msec): min=315, max=2896, avg=1193.19, stdev=368.02 lat (msec): min=316, max=2896, avg=1193.55, stdev=368.04 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 701], 10.00th=[ 810], 20.00th=[ 911], | 30.00th=[ 995], 40.00th=[ 1062], 50.00th=[ 1133], 60.00th=[ 1200], | 70.00th=[ 1301], 80.00th=[ 1452], 90.00th=[ 1670], 95.00th=[ 1921], | 99.00th=[ 2333], 99.50th=[ 2534], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2903] bw ( KiB/s): min= 7, max= 128, per=25.46%, avg=54.47, stdev=25.01, samples=369 iops : min= 1, max= 32, avg=13.12, stdev= 6.29, samples=369 lat (msec) : 500=0.70%, 750=5.86%, 1000=24.22%, 2000=64.92%, >=2000=4.30% cpu : usr=0.05%, sys=0.24%, ctx=1837, 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 Run status group 0 (all jobs): WRITE: bw=214KiB/s (219kB/s), 53.6KiB/s-53.6KiB/s (54.9kB/s-54.9kB/s), io=40.0MiB (41.9MB), run=190965-191158msec 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=145254: Fri Sep 11 11:42:53 2026 read: IOPS=10, BW=40.3KiB/s (41.3kB/s)(5048KiB/125124msec) slat (usec): min=33, max=197018, avg=17151.34, stdev=11141.40 clat (msec): min=40, max=1343, avg=489.86, stdev=153.34 lat (msec): min=60, max=1365, avg=507.01, stdev=155.53 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 296], 10.00th=[ 326], 20.00th=[ 376], | 30.00th=[ 405], 40.00th=[ 435], 50.00th=[ 468], 60.00th=[ 498], | 70.00th=[ 542], 80.00th=[ 592], 90.00th=[ 693], 95.00th=[ 810], | 99.00th=[ 961], 99.50th=[ 995], 99.90th=[ 1099], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 95, per=25.69%, avg=40.85, stdev=19.23, samples=241 iops : min= 1, max= 23, avg= 9.68, stdev= 4.84, samples=241 write: IOPS=10, BW=41.5KiB/s (42.5kB/s)(5192KiB/125124msec); 0 zone resets slat (usec): min=27, max=16873, avg=388.04, stdev=1278.16 clat (msec): min=198, max=2539, avg=1047.94, stdev=338.51 lat (msec): min=198, max=2539, avg=1048.33, stdev=338.43 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 625], 10.00th=[ 684], 20.00th=[ 776], | 30.00th=[ 852], 40.00th=[ 919], 50.00th=[ 986], 60.00th=[ 1070], | 70.00th=[ 1150], 80.00th=[ 1267], 90.00th=[ 1502], 95.00th=[ 1720], | 99.00th=[ 2140], 99.50th=[ 2232], 99.90th=[ 2467], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 119, per=25.20%, avg=41.57, stdev=20.01, samples=243 iops : min= 1, max= 29, avg= 9.86, stdev= 4.99, samples=243 lat (msec) : 50=0.08%, 100=0.20%, 250=0.82%, 500=29.53%, 750=24.06% lat (msec) : 1000=20.47%, 2000=23.95%, >=2000=0.90% cpu : usr=0.10%, sys=0.72%, ctx=4474, 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=145255: Fri Sep 11 11:42:53 2026 read: IOPS=9, BW=39.5KiB/s (40.5kB/s)(4976KiB/125963msec) slat (msec): min=3, max=165, avg=17.18, stdev=10.73 clat (msec): min=35, max=1054, avg=483.95, stdev=159.93 lat (msec): min=40, max=1089, avg=501.15, stdev=162.05 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 288], 10.00th=[ 326], 20.00th=[ 368], | 30.00th=[ 393], 40.00th=[ 422], 50.00th=[ 456], 60.00th=[ 493], | 70.00th=[ 535], 80.00th=[ 592], 90.00th=[ 693], 95.00th=[ 818], | 99.00th=[ 995], 99.50th=[ 1011], 99.90th=[ 1036], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 95, per=25.06%, avg=39.85, stdev=19.16, samples=243 iops : min= 1, max= 23, avg= 9.43, stdev= 4.80, samples=243 write: IOPS=10, BW=41.8KiB/s (42.8kB/s)(5264KiB/125963msec); 0 zone resets slat (usec): min=36, max=18512, avg=362.38, stdev=1145.24 clat (msec): min=342, max=2532, avg=1055.66, stdev=337.81 lat (msec): min=342, max=2532, avg=1056.03, stdev=337.77 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 634], 10.00th=[ 701], 20.00th=[ 785], | 30.00th=[ 844], 40.00th=[ 919], 50.00th=[ 986], 60.00th=[ 1070], | 70.00th=[ 1167], 80.00th=[ 1301], 90.00th=[ 1536], 95.00th=[ 1687], | 99.00th=[ 2123], 99.50th=[ 2333], 99.90th=[ 2534], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 96, per=25.22%, avg=41.61, stdev=19.43, samples=247 iops : min= 1, max= 24, avg= 9.87, stdev= 4.85, samples=247 lat (msec) : 50=0.27%, 100=0.23%, 250=0.47%, 500=29.84%, 750=21.95% lat (msec) : 1000=21.99%, 2000=24.26%, >=2000=0.98% cpu : usr=0.12%, sys=0.62%, ctx=4259, 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=145256: Fri Sep 11 11:42:53 2026 read: IOPS=9, BW=39.6KiB/s (40.5kB/s)(4984KiB/125965msec) slat (msec): min=2, max=185, avg=17.65, stdev=11.05 clat (msec): min=34, max=1369, avg=488.58, stdev=155.80 lat (msec): min=57, max=1393, avg=506.24, stdev=157.52 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 305], 10.00th=[ 334], 20.00th=[ 372], | 30.00th=[ 401], 40.00th=[ 435], 50.00th=[ 464], 60.00th=[ 493], | 70.00th=[ 531], 80.00th=[ 584], 90.00th=[ 693], 95.00th=[ 810], | 99.00th=[ 969], 99.50th=[ 1045], 99.90th=[ 1167], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 7, max= 103, per=25.23%, avg=40.12, stdev=19.32, samples=243 iops : min= 1, max= 25, avg= 9.49, stdev= 4.85, samples=243 write: IOPS=10, BW=41.7KiB/s (42.7kB/s)(5256KiB/125965msec); 0 zone resets slat (usec): min=31, max=29099, avg=437.45, stdev=1550.10 clat (msec): min=275, max=2571, avg=1050.57, stdev=331.59 lat (msec): min=276, max=2571, avg=1051.01, stdev=331.58 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 634], 10.00th=[ 701], 20.00th=[ 793], | 30.00th=[ 852], 40.00th=[ 911], 50.00th=[ 995], 60.00th=[ 1053], | 70.00th=[ 1150], 80.00th=[ 1301], 90.00th=[ 1485], 95.00th=[ 1670], | 99.00th=[ 2056], 99.50th=[ 2366], 99.90th=[ 2534], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 7, max= 103, per=24.98%, avg=41.22, stdev=18.48, samples=248 iops : min= 1, max= 25, avg= 9.77, stdev= 4.60, samples=248 lat (msec) : 50=0.12%, 100=0.23%, 250=0.39%, 500=30.27%, 750=21.88% lat (msec) : 1000=21.60%, 2000=24.69%, >=2000=0.82% cpu : usr=0.13%, sys=0.74%, ctx=4668, 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=145257: Fri Sep 11 11:42:53 2026 read: IOPS=10, BW=40.4KiB/s (41.4kB/s)(5060KiB/125290msec) slat (usec): min=3063, max=70850, avg=17310.72, stdev=9983.56 clat (msec): min=19, max=1140, avg=485.04, stdev=152.12 lat (msec): min=24, max=1163, avg=502.36, stdev=153.42 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 296], 10.00th=[ 326], 20.00th=[ 372], | 30.00th=[ 401], 40.00th=[ 430], 50.00th=[ 460], 60.00th=[ 498], | 70.00th=[ 531], 80.00th=[ 584], 90.00th=[ 676], 95.00th=[ 776], | 99.00th=[ 995], 99.50th=[ 1036], 99.90th=[ 1099], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 119, per=25.62%, avg=40.73, stdev=19.14, samples=243 iops : min= 1, max= 29, avg= 9.64, stdev= 4.84, samples=243 write: IOPS=10, BW=41.3KiB/s (42.3kB/s)(5180KiB/125290msec); 0 zone resets slat (usec): min=31, max=24833, avg=439.35, stdev=1532.71 clat (msec): min=180, max=2479, avg=1054.57, stdev=334.92 lat (msec): min=181, max=2479, avg=1055.01, stdev=334.93 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 634], 10.00th=[ 709], 20.00th=[ 802], | 30.00th=[ 860], 40.00th=[ 919], 50.00th=[ 986], 60.00th=[ 1062], | 70.00th=[ 1150], 80.00th=[ 1284], 90.00th=[ 1485], 95.00th=[ 1703], | 99.00th=[ 2198], 99.50th=[ 2366], 99.90th=[ 2467], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 100, per=25.01%, avg=41.27, stdev=18.84, samples=244 iops : min= 1, max= 25, avg= 9.79, stdev= 4.72, samples=244 lat (msec) : 20=0.04%, 50=0.08%, 100=0.20%, 250=0.51%, 500=30.39% lat (msec) : 750=22.23%, 1000=22.07%, 2000=23.40%, >=2000=1.09% cpu : usr=0.12%, sys=0.79%, ctx=4685, 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=159KiB/s (163kB/s), 39.5KiB/s-40.4KiB/s (40.5kB/s-41.4kB/s), io=19.6MiB (20.5MB), run=125124-125965msec WRITE: bw=166KiB/s (170kB/s), 41.3KiB/s-41.8KiB/s (42.3kB/s-42.8kB/s), io=20.4MiB (21.4MB), run=125124-125965msec 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=145280: Fri Sep 11 11:43:05 2026 read: IOPS=1, BW=63.6MiB/s (66.7MB/s)(40.0MiB/629msec) slat (nsec): min=69079k, max=69079k, avg=69079277.00, stdev= 0.00 clat (nsec): min=532297k, max=532297k, avg=532296977.00, stdev= 0.00 lat (nsec): min=601382k, max=601382k, avg=601381754.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 531], 5.00th=[ 531], 10.00th=[ 531], 20.00th=[ 531], | 30.00th=[ 531], 40.00th=[ 531], 50.00th=[ 531], 60.00th=[ 531], | 70.00th=[ 531], 80.00th=[ 531], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] lat (msec) : 750=100.00% cpu : usr=0.16%, sys=2.39%, 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=63.6MiB/s (66.7MB/s), 63.6MiB/s-63.6MiB/s (66.7MB/s-66.7MB/s), io=40.0MiB (41.9MB), run=629-629msec 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