== sanity test 398c: run fio to test AIO ================= 06:32:21 (1781001141) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.362374 s, 116 MB/s osc.lustre-OST0000-osc-ffff8e31ec52a800.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=145677: Tue Jun 9 06:35:12 2026 write: IOPS=15, BW=62.9KiB/s (64.4kB/s)(10.0MiB/162878msec); 0 zone resets slat (usec): min=49, max=17382, avg=343.99, stdev=862.24 clat (msec): min=325, max=1833, avg=1016.65, stdev=233.69 lat (msec): min=326, max=1834, avg=1017.00, stdev=233.65 clat percentiles (msec): | 1.00th=[ 518], 5.00th=[ 667], 10.00th=[ 735], 20.00th=[ 827], | 30.00th=[ 894], 40.00th=[ 944], 50.00th=[ 995], 60.00th=[ 1062], | 70.00th=[ 1116], 80.00th=[ 1200], 90.00th=[ 1318], 95.00th=[ 1435], | 99.00th=[ 1653], 99.50th=[ 1687], 99.90th=[ 1787], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 7, max= 128, per=25.28%, avg=63.46, stdev=30.62, samples=317 iops : min= 1, max= 32, avg=15.35, stdev= 7.69, samples=317 lat (msec) : 500=0.78%, 750=10.43%, 1000=39.61%, 2000=49.18% cpu : usr=0.05%, sys=0.33%, ctx=2057, 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=145678: Tue Jun 9 06:35:12 2026 write: IOPS=15, BW=62.9KiB/s (64.4kB/s)(10.0MiB/162907msec); 0 zone resets slat (usec): min=42, max=22522, avg=383.06, stdev=1031.87 clat (msec): min=454, max=1850, avg=1016.77, stdev=235.92 lat (msec): min=455, max=1850, avg=1017.15, stdev=235.91 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 667], 10.00th=[ 743], 20.00th=[ 818], | 30.00th=[ 894], 40.00th=[ 944], 50.00th=[ 995], 60.00th=[ 1045], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1334], 95.00th=[ 1435], | 99.00th=[ 1720], 99.50th=[ 1821], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 128, per=25.38%, avg=63.69, stdev=29.09, samples=316 iops : min= 1, max= 32, avg=15.41, stdev= 7.28, samples=316 lat (msec) : 500=1.41%, 750=9.69%, 1000=39.84%, 2000=49.06% cpu : usr=0.05%, sys=0.33%, ctx=2225, 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=145679: Tue Jun 9 06:35:12 2026 write: IOPS=15, BW=62.9KiB/s (64.4kB/s)(10.0MiB/162748msec); 0 zone resets slat (usec): min=45, max=12909, avg=397.94, stdev=1006.66 clat (msec): min=130, max=2154, avg=1016.20, stdev=246.01 lat (msec): min=130, max=2154, avg=1016.60, stdev=245.98 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 667], 10.00th=[ 726], 20.00th=[ 818], | 30.00th=[ 885], 40.00th=[ 944], 50.00th=[ 1003], 60.00th=[ 1062], | 70.00th=[ 1133], 80.00th=[ 1200], 90.00th=[ 1334], 95.00th=[ 1435], | 99.00th=[ 1653], 99.50th=[ 1770], 99.90th=[ 1938], 99.95th=[ 2039], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 128, per=25.94%, avg=65.12, stdev=31.26, samples=309 iops : min= 1, max= 32, avg=15.77, stdev= 7.84, samples=309 lat (msec) : 250=0.62%, 500=0.62%, 750=11.05%, 1000=37.62%, 2000=50.00% lat (msec) : >=2000=0.08% cpu : usr=0.05%, sys=0.33%, ctx=2014, 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=145680: Tue Jun 9 06:35:12 2026 write: IOPS=15, BW=62.9KiB/s (64.4kB/s)(10.0MiB/162821msec); 0 zone resets slat (usec): min=49, max=18614, avg=444.75, stdev=1227.32 clat (msec): min=187, max=2056, avg=1016.15, stdev=242.40 lat (msec): min=188, max=2056, avg=1016.60, stdev=242.39 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 659], 10.00th=[ 726], 20.00th=[ 827], | 30.00th=[ 885], 40.00th=[ 944], 50.00th=[ 995], 60.00th=[ 1053], | 70.00th=[ 1116], 80.00th=[ 1200], 90.00th=[ 1318], 95.00th=[ 1435], | 99.00th=[ 1754], 99.50th=[ 1821], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2056] bw ( KiB/s): min= 7, max= 127, per=24.82%, avg=62.29, stdev=23.76, samples=323 iops : min= 1, max= 31, avg=15.06, stdev= 5.96, samples=323 lat (msec) : 250=0.12%, 500=1.21%, 750=10.70%, 1000=38.48%, 2000=49.38% lat (msec) : >=2000=0.12% cpu : usr=0.06%, sys=0.35%, ctx=2364, 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=251KiB/s (257kB/s), 62.9KiB/s-62.9KiB/s (64.4kB/s-64.4kB/s), io=40.0MiB (41.9MB), run=162748-162907msec 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=145713: Tue Jun 9 06:37:23 2026 read: IOPS=10, BW=40.8KiB/s (41.8kB/s)(5048KiB/123666msec) slat (usec): min=3131, max=57203, avg=16682.85, stdev=9160.41 clat (msec): min=38, max=1099, avg=482.08, stdev=137.65 lat (msec): min=51, max=1112, avg=498.78, stdev=139.22 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 292], 10.00th=[ 330], 20.00th=[ 372], | 30.00th=[ 405], 40.00th=[ 439], 50.00th=[ 468], 60.00th=[ 502], | 70.00th=[ 535], 80.00th=[ 584], 90.00th=[ 651], 95.00th=[ 726], | 99.00th=[ 885], 99.50th=[ 995], 99.90th=[ 1070], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 118, per=25.02%, avg=40.52, stdev=20.88, samples=242 iops : min= 1, max= 29, avg= 9.55, stdev= 5.25, samples=242 write: IOPS=10, BW=41.0KiB/s (42.0kB/s)(5192KiB/123666msec); 0 zone resets slat (usec): min=54, max=23371, avg=535.67, stdev=1498.95 clat (msec): min=331, max=2335, avg=1035.33, stdev=316.37 lat (msec): min=332, max=2335, avg=1035.87, stdev=316.37 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 558], 10.00th=[ 634], 20.00th=[ 768], | 30.00th=[ 869], 40.00th=[ 944], 50.00th=[ 1011], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1301], 90.00th=[ 1435], 95.00th=[ 1569], | 99.00th=[ 1955], 99.50th=[ 2022], 99.90th=[ 2198], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 95, per=24.74%, avg=41.56, stdev=19.88, samples=243 iops : min= 1, max= 23, avg= 9.81, stdev= 4.98, samples=243 lat (msec) : 50=0.08%, 100=0.16%, 250=0.55%, 500=29.69%, 750=26.37% lat (msec) : 1000=17.03%, 2000=25.82%, >=2000=0.31% cpu : usr=0.11%, sys=0.76%, ctx=4803, 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=145714: Tue Jun 9 06:37:23 2026 read: IOPS=10, BW=40.2KiB/s (41.2kB/s)(4976KiB/123800msec) slat (usec): min=2967, max=68801, avg=16360.49, stdev=9286.38 clat (msec): min=16, max=1103, avg=484.61, stdev=141.01 lat (msec): min=32, max=1127, avg=500.99, stdev=142.83 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 296], 10.00th=[ 334], 20.00th=[ 376], | 30.00th=[ 409], 40.00th=[ 439], 50.00th=[ 468], 60.00th=[ 498], | 70.00th=[ 535], 80.00th=[ 584], 90.00th=[ 667], 95.00th=[ 743], | 99.00th=[ 919], 99.50th=[ 953], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 103, per=25.26%, avg=40.92, stdev=20.10, samples=237 iops : min= 1, max= 25, avg= 9.65, stdev= 5.05, samples=237 write: IOPS=10, BW=42.5KiB/s (43.5kB/s)(5264KiB/123800msec); 0 zone resets slat (usec): min=51, max=29919, avg=566.97, stdev=1593.22 clat (msec): min=221, max=2330, avg=1028.30, stdev=319.85 lat (msec): min=222, max=2330, avg=1028.87, stdev=319.82 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 542], 10.00th=[ 617], 20.00th=[ 743], | 30.00th=[ 852], 40.00th=[ 944], 50.00th=[ 1020], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1284], 90.00th=[ 1435], 95.00th=[ 1569], | 99.00th=[ 1955], 99.50th=[ 2022], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 103, per=25.17%, avg=42.29, stdev=19.45, samples=243 iops : min= 1, max= 25, avg= 9.99, stdev= 4.89, samples=243 lat (msec) : 20=0.04%, 50=0.12%, 100=0.12%, 250=0.90%, 500=29.69% lat (msec) : 750=25.82%, 1000=16.33%, 2000=26.68%, >=2000=0.31% cpu : usr=0.10%, sys=0.85%, ctx=4955, 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=145715: Tue Jun 9 06:37:23 2026 read: IOPS=10, BW=40.4KiB/s (41.4kB/s)(4984KiB/123261msec) slat (usec): min=2724, max=69146, avg=16517.00, stdev=9029.24 clat (msec): min=14, max=1066, avg=480.63, stdev=139.07 lat (msec): min=27, max=1094, avg=497.16, stdev=141.04 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 284], 10.00th=[ 321], 20.00th=[ 372], | 30.00th=[ 409], 40.00th=[ 439], 50.00th=[ 468], 60.00th=[ 502], | 70.00th=[ 542], 80.00th=[ 584], 90.00th=[ 659], 95.00th=[ 735], | 99.00th=[ 860], 99.50th=[ 936], 99.90th=[ 1053], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 127, per=24.89%, avg=40.31, stdev=21.61, samples=242 iops : min= 1, max= 31, avg= 9.50, stdev= 5.44, samples=242 write: IOPS=10, BW=42.6KiB/s (43.7kB/s)(5256KiB/123261msec); 0 zone resets slat (usec): min=56, max=23559, avg=464.93, stdev=1357.16 clat (msec): min=352, max=2334, avg=1026.06, stdev=313.38 lat (msec): min=353, max=2334, avg=1026.53, stdev=313.37 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 542], 10.00th=[ 625], 20.00th=[ 751], | 30.00th=[ 869], 40.00th=[ 936], 50.00th=[ 1003], 60.00th=[ 1070], | 70.00th=[ 1167], 80.00th=[ 1267], 90.00th=[ 1435], 95.00th=[ 1603], | 99.00th=[ 1905], 99.50th=[ 2089], 99.90th=[ 2265], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 128, per=25.02%, avg=42.03, stdev=20.20, samples=243 iops : min= 1, max= 32, avg= 9.92, stdev= 5.06, samples=243 lat (msec) : 20=0.04%, 50=0.20%, 100=0.16%, 250=0.66%, 500=28.75% lat (msec) : 750=27.19%, 1000=16.76%, 2000=25.90%, >=2000=0.35% cpu : usr=0.09%, sys=0.75%, ctx=4670, 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=145716: Tue Jun 9 06:37:23 2026 read: IOPS=10, BW=41.0KiB/s (42.0kB/s)(5060KiB/123282msec) slat (usec): min=92, max=65347, avg=16313.47, stdev=9357.16 clat (msec): min=20, max=1084, avg=488.65, stdev=141.15 lat (msec): min=35, max=1098, avg=504.97, stdev=143.01 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 288], 10.00th=[ 334], 20.00th=[ 380], | 30.00th=[ 414], 40.00th=[ 443], 50.00th=[ 477], 60.00th=[ 506], | 70.00th=[ 542], 80.00th=[ 592], 90.00th=[ 676], 95.00th=[ 743], | 99.00th=[ 860], 99.50th=[ 944], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 133, per=25.23%, avg=40.87, stdev=20.95, samples=242 iops : min= 1, max= 33, avg= 9.64, stdev= 5.26, samples=242 write: IOPS=10, BW=42.0KiB/s (43.0kB/s)(5180KiB/123282msec); 0 zone resets slat (usec): min=54, max=14414, avg=451.16, stdev=1152.87 clat (msec): min=244, max=2335, avg=1028.67, stdev=319.64 lat (msec): min=245, max=2335, avg=1029.12, stdev=319.70 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 550], 10.00th=[ 625], 20.00th=[ 751], | 30.00th=[ 869], 40.00th=[ 944], 50.00th=[ 1011], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1284], 90.00th=[ 1435], 95.00th=[ 1569], | 99.00th=[ 1972], 99.50th=[ 2056], 99.90th=[ 2232], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 112, per=24.48%, avg=41.13, stdev=20.06, samples=245 iops : min= 1, max= 28, avg= 9.69, stdev= 5.03, samples=245 lat (msec) : 50=0.23%, 100=0.12%, 250=0.66%, 500=29.34%, 750=27.07% lat (msec) : 1000=16.64%, 2000=25.55%, >=2000=0.39% cpu : usr=0.08%, sys=0.75%, ctx=4435, 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=162KiB/s (166kB/s), 40.2KiB/s-41.0KiB/s (41.2kB/s-42.0kB/s), io=19.6MiB (20.5MB), run=123261-123800msec WRITE: bw=169KiB/s (173kB/s), 41.0KiB/s-42.6KiB/s (42.0kB/s-43.7kB/s), io=20.4MiB (21.4MB), run=123261-123800msec 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=145737: Tue Jun 9 06:37:34 2026 read: IOPS=1, BW=55.5MiB/s (58.2MB/s)(40.0MiB/721msec) slat (nsec): min=43522k, max=43522k, avg=43521974.00, stdev= 0.00 clat (nsec): min=649467k, max=649467k, avg=649467018.00, stdev= 0.00 lat (nsec): min=692994k, max=692994k, avg=692993812.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.94%, ctx=45, 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=55.5MiB/s (58.2MB/s), 55.5MiB/s-55.5MiB/s (58.2MB/s-58.2MB/s), io=40.0MiB (41.9MB), run=721-721msec 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