== sanity test 398c: run fio to test AIO ================= 13:35:55 (1780335355) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.527385 s, 79.5 MB/s osc.lustre-OST0000-osc-ffff98674683f800.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=146438: Mon Jun 1 13:38:45 2026 write: IOPS=16, BW=64.1KiB/s (65.7kB/s)(10.0MiB/159657msec); 0 zone resets slat (usec): min=41, max=13366, avg=272.22, stdev=775.46 clat (msec): min=245, max=1770, avg=996.57, stdev=235.60 lat (msec): min=245, max=1770, avg=996.84, stdev=235.63 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 617], 10.00th=[ 726], 20.00th=[ 827], | 30.00th=[ 885], 40.00th=[ 936], 50.00th=[ 986], 60.00th=[ 1036], | 70.00th=[ 1099], 80.00th=[ 1167], 90.00th=[ 1318], 95.00th=[ 1401], | 99.00th=[ 1620], 99.50th=[ 1703], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 128, per=25.69%, avg=65.76, stdev=26.50, samples=306 iops : min= 1, max= 32, avg=15.92, stdev= 6.68, samples=306 lat (msec) : 250=0.62%, 500=1.33%, 750=10.16%, 1000=41.56%, 2000=46.33% cpu : usr=0.05%, sys=0.26%, ctx=1745, 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=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=146439: Mon Jun 1 13:38:45 2026 write: IOPS=16, BW=64.2KiB/s (65.7kB/s)(10.0MiB/159536msec); 0 zone resets slat (usec): min=43, max=14716, avg=292.50, stdev=860.59 clat (msec): min=146, max=1836, avg=996.37, stdev=241.29 lat (msec): min=146, max=1836, avg=996.66, stdev=241.34 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 642], 10.00th=[ 726], 20.00th=[ 827], | 30.00th=[ 877], 40.00th=[ 936], 50.00th=[ 986], 60.00th=[ 1045], | 70.00th=[ 1099], 80.00th=[ 1167], 90.00th=[ 1318], 95.00th=[ 1435], | 99.00th=[ 1586], 99.50th=[ 1653], 99.90th=[ 1787], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 7, max= 256, per=25.92%, avg=66.36, stdev=33.55, samples=303 iops : min= 1, max= 64, avg=16.07, stdev= 8.43, samples=303 lat (msec) : 250=0.62%, 500=1.88%, 750=9.65%, 1000=40.39%, 2000=47.46% cpu : usr=0.05%, sys=0.28%, ctx=1806, 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=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=146440: Mon Jun 1 13:38:45 2026 write: IOPS=16, BW=64.3KiB/s (65.8kB/s)(10.0MiB/159239msec); 0 zone resets slat (usec): min=45, max=21197, avg=308.45, stdev=910.77 clat (msec): min=221, max=1838, avg=994.09, stdev=230.97 lat (msec): min=221, max=1838, avg=994.40, stdev=230.97 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 617], 10.00th=[ 726], 20.00th=[ 835], | 30.00th=[ 894], 40.00th=[ 936], 50.00th=[ 986], 60.00th=[ 1036], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1284], 95.00th=[ 1401], | 99.00th=[ 1569], 99.50th=[ 1653], 99.90th=[ 1838], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 7, max= 255, per=25.11%, avg=64.29, stdev=31.30, samples=313 iops : min= 1, max= 63, avg=15.56, stdev= 7.86, samples=313 lat (msec) : 250=0.62%, 500=1.68%, 750=9.49%, 1000=41.91%, 2000=46.29% cpu : usr=0.05%, sys=0.29%, ctx=2001, 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=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=146441: Mon Jun 1 13:38:45 2026 write: IOPS=16, BW=64.3KiB/s (65.8kB/s)(10.0MiB/159244msec); 0 zone resets slat (usec): min=50, max=16425, avg=304.43, stdev=829.80 clat (msec): min=77, max=1814, avg=993.98, stdev=236.33 lat (msec): min=77, max=1814, avg=994.29, stdev=236.31 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 634], 10.00th=[ 726], 20.00th=[ 827], | 30.00th=[ 894], 40.00th=[ 944], 50.00th=[ 978], 60.00th=[ 1036], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1284], 95.00th=[ 1401], | 99.00th=[ 1569], 99.50th=[ 1687], 99.90th=[ 1770], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7, max= 161, per=24.86%, avg=63.64, stdev=24.94, samples=316 iops : min= 1, max= 40, avg=15.39, stdev= 6.28, samples=316 lat (msec) : 100=0.04%, 250=0.35%, 500=2.23%, 750=9.61%, 1000=41.84% lat (msec) : 2000=45.94% cpu : usr=0.05%, sys=0.30%, ctx=2170, 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=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=257KiB/s (263kB/s), 64.1KiB/s-64.3KiB/s (65.7kB/s-65.8kB/s), io=40.0MiB (41.9MB), run=159239-159657msec 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=146474: Mon Jun 1 13:40:51 2026 read: IOPS=10, BW=43.2KiB/s (44.2kB/s)(5048KiB/116839msec) slat (usec): min=63, max=78297, avg=14930.46, stdev=8463.32 clat (msec): min=42, max=1209, avg=455.60, stdev=133.48 lat (msec): min=42, max=1219, avg=470.53, stdev=135.32 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 288], 10.00th=[ 317], 20.00th=[ 355], | 30.00th=[ 388], 40.00th=[ 414], 50.00th=[ 443], 60.00th=[ 472], | 70.00th=[ 502], 80.00th=[ 550], 90.00th=[ 617], 95.00th=[ 676], | 99.00th=[ 877], 99.50th=[ 986], 99.90th=[ 1099], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 7, max= 120, per=25.47%, avg=43.30, stdev=20.11, samples=228 iops : min= 1, max= 30, avg=10.31, stdev= 5.08, samples=228 write: IOPS=11, BW=44.4KiB/s (45.5kB/s)(5192KiB/116839msec); 0 zone resets slat (usec): min=58, max=12544, avg=384.83, stdev=967.59 clat (msec): min=105, max=1985, avg=981.25, stdev=287.79 lat (msec): min=105, max=1985, avg=981.64, stdev=287.82 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 567], 10.00th=[ 642], 20.00th=[ 735], | 30.00th=[ 810], 40.00th=[ 894], 50.00th=[ 986], 60.00th=[ 1045], | 70.00th=[ 1116], 80.00th=[ 1200], 90.00th=[ 1334], 95.00th=[ 1469], | 99.00th=[ 1787], 99.50th=[ 1838], 99.90th=[ 1938], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 103, per=25.00%, avg=44.25, stdev=20.84, samples=229 iops : min= 1, max= 25, avg=10.55, stdev= 5.22, samples=229 lat (msec) : 50=0.12%, 100=0.47%, 250=1.21%, 500=34.10%, 750=22.81% lat (msec) : 1000=17.27%, 2000=24.02% cpu : usr=0.09%, sys=0.70%, ctx=4509, 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=146475: Mon Jun 1 13:40:51 2026 read: IOPS=10, BW=42.3KiB/s (43.4kB/s)(4976KiB/117500msec) slat (usec): min=2984, max=53771, avg=15467.39, stdev=8289.07 clat (msec): min=21, max=953, avg=448.02, stdev=117.78 lat (msec): min=27, max=969, avg=463.49, stdev=119.45 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 292], 10.00th=[ 321], 20.00th=[ 359], | 30.00th=[ 388], 40.00th=[ 414], 50.00th=[ 439], 60.00th=[ 464], | 70.00th=[ 493], 80.00th=[ 535], 90.00th=[ 600], 95.00th=[ 651], | 99.00th=[ 810], 99.50th=[ 844], 99.90th=[ 885], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 119, per=24.56%, avg=41.75, stdev=20.96, samples=232 iops : min= 1, max= 29, avg= 9.93, stdev= 5.26, samples=232 write: IOPS=11, BW=44.8KiB/s (45.9kB/s)(5264KiB/117500msec); 0 zone resets slat (usec): min=56, max=13433, avg=371.63, stdev=864.60 clat (msec): min=262, max=2019, avg=987.91, stdev=286.65 lat (msec): min=263, max=2019, avg=988.29, stdev=286.66 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 567], 10.00th=[ 651], 20.00th=[ 743], | 30.00th=[ 810], 40.00th=[ 894], 50.00th=[ 969], 60.00th=[ 1036], | 70.00th=[ 1133], 80.00th=[ 1217], 90.00th=[ 1368], 95.00th=[ 1469], | 99.00th=[ 1804], 99.50th=[ 1871], 99.90th=[ 2005], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 96, per=25.17%, avg=44.55, stdev=20.31, samples=231 iops : min= 1, max= 24, avg=10.62, stdev= 5.08, samples=231 lat (msec) : 50=0.20%, 100=0.20%, 250=0.51%, 500=35.27%, 750=22.34% lat (msec) : 1000=17.54%, 2000=23.87%, >=2000=0.08% cpu : usr=0.10%, sys=0.67%, ctx=4754, 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=146476: Mon Jun 1 13:40:51 2026 read: IOPS=10, BW=42.5KiB/s (43.5kB/s)(4984KiB/117370msec) slat (usec): min=3226, max=53939, avg=15469.96, stdev=8301.92 clat (msec): min=35, max=916, avg=454.79, stdev=118.03 lat (msec): min=41, max=956, avg=470.26, stdev=119.82 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 292], 10.00th=[ 326], 20.00th=[ 363], | 30.00th=[ 397], 40.00th=[ 418], 50.00th=[ 443], 60.00th=[ 464], | 70.00th=[ 493], 80.00th=[ 542], 90.00th=[ 609], 95.00th=[ 667], | 99.00th=[ 844], 99.50th=[ 860], 99.90th=[ 911], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 111, per=24.76%, avg=42.10, stdev=19.43, samples=232 iops : min= 1, max= 27, avg=10.01, stdev= 4.89, samples=232 write: IOPS=11, BW=44.8KiB/s (45.9kB/s)(5256KiB/117370msec); 0 zone resets slat (usec): min=55, max=14742, avg=402.05, stdev=1047.00 clat (msec): min=142, max=2019, avg=980.69, stdev=287.49 lat (msec): min=143, max=2020, avg=981.09, stdev=287.50 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 575], 10.00th=[ 642], 20.00th=[ 726], | 30.00th=[ 810], 40.00th=[ 877], 50.00th=[ 961], 60.00th=[ 1036], | 70.00th=[ 1116], 80.00th=[ 1200], 90.00th=[ 1351], 95.00th=[ 1485], | 99.00th=[ 1804], 99.50th=[ 1871], 99.90th=[ 1972], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 103, per=24.95%, avg=44.17, stdev=19.37, samples=232 iops : min= 1, max= 25, avg=10.53, stdev= 4.85, samples=232 lat (msec) : 50=0.04%, 100=0.27%, 250=0.51%, 500=35.59%, 750=22.73% lat (msec) : 1000=17.77%, 2000=23.05%, >=2000=0.04% cpu : usr=0.11%, sys=0.70%, ctx=4394, 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=146477: Mon Jun 1 13:40:51 2026 read: IOPS=10, BW=43.1KiB/s (44.2kB/s)(5060KiB/117294msec) slat (usec): min=3064, max=67683, avg=15344.89, stdev=8289.89 clat (msec): min=17, max=1017, avg=454.85, stdev=124.77 lat (msec): min=31, max=1043, avg=470.21, stdev=126.20 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 292], 10.00th=[ 321], 20.00th=[ 363], | 30.00th=[ 388], 40.00th=[ 414], 50.00th=[ 439], 60.00th=[ 468], | 70.00th=[ 498], 80.00th=[ 542], 90.00th=[ 609], 95.00th=[ 676], | 99.00th=[ 844], 99.50th=[ 869], 99.90th=[ 986], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 7, max= 110, per=25.24%, avg=42.91, stdev=18.64, samples=231 iops : min= 1, max= 27, avg=10.22, stdev= 4.66, samples=231 write: IOPS=11, BW=44.2KiB/s (45.2kB/s)(5180KiB/117294msec); 0 zone resets slat (usec): min=58, max=14530, avg=407.25, stdev=1042.76 clat (msec): min=232, max=1903, avg=987.26, stdev=276.75 lat (msec): min=232, max=1903, avg=987.67, stdev=276.73 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 575], 10.00th=[ 651], 20.00th=[ 751], | 30.00th=[ 827], 40.00th=[ 902], 50.00th=[ 978], 60.00th=[ 1045], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1351], 95.00th=[ 1469], | 99.00th=[ 1787], 99.50th=[ 1804], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 7, max= 112, per=24.61%, avg=43.55, stdev=21.73, samples=232 iops : min= 1, max= 28, avg=10.37, stdev= 5.45, samples=232 lat (msec) : 20=0.04%, 50=0.16%, 100=0.16%, 250=0.82%, 500=34.80% lat (msec) : 750=21.72%, 1000=19.22%, 2000=23.09% cpu : usr=0.09%, sys=0.66%, ctx=4816, 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=171KiB/s (175kB/s), 42.3KiB/s-43.2KiB/s (43.4kB/s-44.2kB/s), io=19.6MiB (20.5MB), run=116839-117500msec WRITE: bw=178KiB/s (182kB/s), 44.2KiB/s-44.8KiB/s (45.2kB/s-45.9kB/s), io=20.4MiB (21.4MB), run=116839-117500msec 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=146497: Mon Jun 1 13:41:02 2026 read: IOPS=1, BW=62.1MiB/s (65.1MB/s)(40.0MiB/644msec) slat (nsec): min=58399k, max=58399k, avg=58398749.00, stdev= 0.00 clat (nsec): min=547515k, max=547515k, avg=547514784.00, stdev= 0.00 lat (nsec): min=605919k, max=605919k, avg=605918678.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.02%, ctx=26, majf=0, minf=8 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=62.1MiB/s (65.1MB/s), 62.1MiB/s-62.1MiB/s (65.1MB/s-65.1MB/s), io=40.0MiB (41.9MB), run=644-644msec 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