== sanity test 398c: run fio to test AIO ================= 16:51:32 (1790715092) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.594032 s, 70.6 MB/s osc.lustre-OST0000-osc-ffff8d3378735000.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=147557: Tue Sep 29 16:54:22 2026 write: IOPS=15, BW=62.9KiB/s (64.4kB/s)(10.0MiB/162902msec); 0 zone resets slat (usec): min=23, max=20273, avg=227.86, stdev=901.93 clat (msec): min=124, max=1854, avg=1017.53, stdev=249.81 lat (msec): min=124, max=1854, avg=1017.76, stdev=249.83 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 667], 10.00th=[ 718], 20.00th=[ 810], | 30.00th=[ 877], 40.00th=[ 944], 50.00th=[ 1003], 60.00th=[ 1070], | 70.00th=[ 1150], 80.00th=[ 1217], 90.00th=[ 1351], 95.00th=[ 1435], | 99.00th=[ 1603], 99.50th=[ 1703], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 166, per=24.86%, avg=62.41, stdev=29.94, samples=323 iops : min= 1, max= 41, avg=15.17, stdev= 7.53, samples=323 lat (msec) : 250=0.47%, 500=0.94%, 750=11.60%, 1000=37.27%, 2000=49.73% cpu : usr=0.05%, sys=0.20%, ctx=1984, 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=147558: Tue Sep 29 16:54:22 2026 write: IOPS=15, BW=62.0KiB/s (64.5kB/s)(10.0MiB/162591msec); 0 zone resets slat (usec): min=27, max=14125, avg=191.60, stdev=677.99 clat (msec): min=106, max=1781, avg=1015.58, stdev=253.26 lat (msec): min=106, max=1782, avg=1015.78, stdev=253.27 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 642], 10.00th=[ 718], 20.00th=[ 818], | 30.00th=[ 877], 40.00th=[ 944], 50.00th=[ 1003], 60.00th=[ 1070], | 70.00th=[ 1150], 80.00th=[ 1234], 90.00th=[ 1334], 95.00th=[ 1435], | 99.00th=[ 1620], 99.50th=[ 1653], 99.90th=[ 1770], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 7, max= 223, per=25.39%, avg=63.73, stdev=31.01, samples=316 iops : min= 1, max= 55, avg=15.51, stdev= 7.79, samples=316 lat (msec) : 250=0.62%, 500=1.29%, 750=11.17%, 1000=36.41%, 2000=50.51% cpu : usr=0.04%, sys=0.21%, ctx=1740, 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=147559: Tue Sep 29 16:54:22 2026 write: IOPS=15, BW=62.8KiB/s (64.4kB/s)(10.0MiB/162945msec); 0 zone resets slat (usec): min=23, max=12750, avg=215.36, stdev=741.05 clat (msec): min=184, max=1833, avg=1017.57, stdev=246.17 lat (msec): min=186, max=1833, avg=1017.79, stdev=246.17 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 667], 10.00th=[ 718], 20.00th=[ 818], | 30.00th=[ 885], 40.00th=[ 936], 50.00th=[ 1003], 60.00th=[ 1070], | 70.00th=[ 1150], 80.00th=[ 1217], 90.00th=[ 1351], 95.00th=[ 1435], | 99.00th=[ 1620], 99.50th=[ 1720], 99.90th=[ 1821], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 7, max= 136, per=25.01%, avg=62.78, stdev=29.63, samples=321 iops : min= 1, max= 34, avg=15.26, stdev= 7.43, samples=321 lat (msec) : 250=0.16%, 500=1.41%, 750=11.80%, 1000=36.33%, 2000=50.31% cpu : usr=0.04%, sys=0.21%, ctx=1994, 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=147560: Tue Sep 29 16:54:22 2026 write: IOPS=15, BW=62.8KiB/s (64.3kB/s)(10.0MiB/163047msec); 0 zone resets slat (usec): min=26, max=14942, avg=241.87, stdev=860.19 clat (msec): min=213, max=1820, avg=1018.06, stdev=246.31 lat (msec): min=213, max=1820, avg=1018.30, stdev=246.33 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 659], 10.00th=[ 718], 20.00th=[ 827], | 30.00th=[ 885], 40.00th=[ 944], 50.00th=[ 1003], 60.00th=[ 1083], | 70.00th=[ 1150], 80.00th=[ 1217], 90.00th=[ 1334], 95.00th=[ 1418], | 99.00th=[ 1636], 99.50th=[ 1703], 99.90th=[ 1737], 99.95th=[ 1737], | 99.99th=[ 1821] bw ( KiB/s): min= 7, max= 135, per=24.77%, avg=62.16, stdev=26.33, samples=323 iops : min= 1, max= 33, avg=15.11, stdev= 6.62, samples=323 lat (msec) : 250=0.74%, 500=1.02%, 750=10.90%, 1000=37.42%, 2000=49.92% cpu : usr=0.05%, sys=0.21%, ctx=2100, 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=251KiB/s (257kB/s), 62.8KiB/s-62.0KiB/s (64.3kB/s-64.5kB/s), io=40.0MiB (41.9MB), run=162591-163047msec 5% of I/O are 1-page (PAGE_SIZE=4096), max 50% 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=147592: Tue Sep 29 16:56:17 2026 read: IOPS=11, BW=47.1KiB/s (48.2kB/s)(5048KiB/107145msec) slat (usec): min=2631, max=55211, avg=13302.87, stdev=7156.83 clat (msec): min=8, max=1009, avg=411.69, stdev=104.78 lat (msec): min=18, max=1018, avg=425.00, stdev=105.56 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 268], 10.00th=[ 300], 20.00th=[ 334], | 30.00th=[ 359], 40.00th=[ 384], 50.00th=[ 405], 60.00th=[ 422], | 70.00th=[ 451], 80.00th=[ 485], 90.00th=[ 542], 95.00th=[ 584], | 99.00th=[ 743], 99.50th=[ 802], 99.90th=[ 1003], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 104, per=25.35%, avg=47.14, stdev=20.79, samples=210 iops : min= 1, max= 26, avg=11.30, stdev= 5.24, samples=210 write: IOPS=12, BW=48.5KiB/s (49.6kB/s)(5192KiB/107145msec); 0 zone resets slat (usec): min=35, max=13847, avg=293.53, stdev=915.56 clat (msec): min=179, max=1775, avg=904.69, stdev=229.04 lat (msec): min=179, max=1775, avg=904.98, stdev=229.06 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 567], 10.00th=[ 634], 20.00th=[ 726], | 30.00th=[ 776], 40.00th=[ 827], 50.00th=[ 885], 60.00th=[ 936], | 70.00th=[ 1003], 80.00th=[ 1083], 90.00th=[ 1200], 95.00th=[ 1351], | 99.00th=[ 1519], 99.50th=[ 1552], 99.90th=[ 1754], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 110, per=24.80%, avg=48.11, stdev=19.85, samples=211 iops : min= 1, max= 27, avg=11.54, stdev= 4.98, samples=211 lat (msec) : 10=0.04%, 100=0.27%, 250=1.21%, 500=40.90%, 750=19.02% lat (msec) : 1000=23.20%, 2000=15.35% cpu : usr=0.13%, sys=0.59%, ctx=4980, 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=147593: Tue Sep 29 16:56:17 2026 read: IOPS=11, BW=46.3KiB/s (47.4kB/s)(4976KiB/107391msec) slat (usec): min=31, max=52265, avg=13490.39, stdev=7279.28 clat (msec): min=14, max=884, avg=415.39, stdev=100.85 lat (msec): min=21, max=902, avg=428.89, stdev=102.35 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 275], 10.00th=[ 309], 20.00th=[ 342], | 30.00th=[ 363], 40.00th=[ 388], 50.00th=[ 405], 60.00th=[ 426], | 70.00th=[ 451], 80.00th=[ 489], 90.00th=[ 531], 95.00th=[ 592], | 99.00th=[ 709], 99.50th=[ 810], 99.90th=[ 869], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 95, per=24.95%, avg=46.40, stdev=19.35, samples=210 iops : min= 1, max= 23, avg=11.11, stdev= 4.85, samples=210 write: IOPS=12, BW=49.0KiB/s (50.2kB/s)(5264KiB/107391msec); 0 zone resets slat (usec): min=33, max=31504, avg=288.31, stdev=1106.51 clat (msec): min=135, max=1673, avg=899.34, stdev=232.28 lat (msec): min=135, max=1673, avg=899.64, stdev=232.27 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 558], 10.00th=[ 617], 20.00th=[ 718], | 30.00th=[ 785], 40.00th=[ 835], 50.00th=[ 894], 60.00th=[ 936], | 70.00th=[ 1003], 80.00th=[ 1083], 90.00th=[ 1200], 95.00th=[ 1318], | 99.00th=[ 1519], 99.50th=[ 1569], 99.90th=[ 1586], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7, max= 131, per=24.93%, avg=48.36, stdev=20.87, samples=213 iops : min= 1, max= 32, avg=11.60, stdev= 5.23, samples=213 lat (msec) : 20=0.04%, 100=0.23%, 250=1.48%, 500=40.23%, 750=18.87% lat (msec) : 1000=23.48%, 2000=15.66% cpu : usr=0.09%, sys=0.63%, ctx=4750, 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=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=147594: Tue Sep 29 16:56:17 2026 read: IOPS=11, BW=46.4KiB/s (47.5kB/s)(4984KiB/107495msec) slat (usec): min=2605, max=50444, avg=13306.09, stdev=6775.75 clat (msec): min=11, max=884, avg=413.53, stdev=103.04 lat (msec): min=21, max=893, avg=426.85, stdev=103.96 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 271], 10.00th=[ 305], 20.00th=[ 338], | 30.00th=[ 363], 40.00th=[ 384], 50.00th=[ 405], 60.00th=[ 426], | 70.00th=[ 456], 80.00th=[ 489], 90.00th=[ 531], 95.00th=[ 592], | 99.00th=[ 709], 99.50th=[ 751], 99.90th=[ 869], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 119, per=24.79%, avg=46.12, stdev=21.24, samples=212 iops : min= 1, max= 29, avg=11.04, stdev= 5.38, samples=212 write: IOPS=12, BW=48.9KiB/s (50.1kB/s)(5256KiB/107495msec); 0 zone resets slat (usec): min=31, max=11742, avg=288.16, stdev=821.69 clat (msec): min=111, max=1636, avg=901.78, stdev=227.76 lat (msec): min=112, max=1636, avg=902.07, stdev=227.78 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 584], 10.00th=[ 642], 20.00th=[ 718], | 30.00th=[ 776], 40.00th=[ 827], 50.00th=[ 885], 60.00th=[ 953], | 70.00th=[ 1003], 80.00th=[ 1083], 90.00th=[ 1200], 95.00th=[ 1301], | 99.00th=[ 1519], 99.50th=[ 1569], 99.90th=[ 1603], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 8, max= 111, per=24.84%, avg=48.19, stdev=18.30, samples=212 iops : min= 2, max= 27, avg=11.56, stdev= 4.58, samples=212 lat (msec) : 20=0.08%, 50=0.08%, 100=0.27%, 250=1.29%, 500=40.31% lat (msec) : 750=19.41%, 1000=23.09%, 2000=15.47% cpu : usr=0.10%, sys=0.60%, ctx=4683, 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=147595: Tue Sep 29 16:56:17 2026 read: IOPS=11, BW=47.1KiB/s (48.3kB/s)(5060KiB/107381msec) slat (usec): min=2968, max=48648, avg=12952.20, stdev=6571.79 clat (msec): min=12, max=1165, avg=414.63, stdev=104.72 lat (msec): min=15, max=1175, avg=427.59, stdev=105.37 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 264], 10.00th=[ 305], 20.00th=[ 338], | 30.00th=[ 359], 40.00th=[ 384], 50.00th=[ 409], 60.00th=[ 430], | 70.00th=[ 451], 80.00th=[ 485], 90.00th=[ 542], 95.00th=[ 584], | 99.00th=[ 726], 99.50th=[ 802], 99.90th=[ 978], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 126, per=25.44%, avg=47.31, stdev=20.39, samples=210 iops : min= 1, max= 31, avg=11.34, stdev= 5.13, samples=210 write: IOPS=12, BW=48.2KiB/s (49.4kB/s)(5180KiB/107381msec); 0 zone resets slat (usec): min=34, max=16352, avg=321.50, stdev=1006.54 clat (msec): min=107, max=1841, avg=906.34, stdev=234.92 lat (msec): min=107, max=1841, avg=906.66, stdev=234.97 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 550], 10.00th=[ 634], 20.00th=[ 718], | 30.00th=[ 785], 40.00th=[ 835], 50.00th=[ 885], 60.00th=[ 936], | 70.00th=[ 1003], 80.00th=[ 1083], 90.00th=[ 1200], 95.00th=[ 1334], | 99.00th=[ 1586], 99.50th=[ 1653], 99.90th=[ 1754], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 7, max= 103, per=24.49%, avg=47.51, stdev=18.98, samples=213 iops : min= 1, max= 25, avg=11.39, stdev= 4.78, samples=213 lat (msec) : 20=0.04%, 50=0.04%, 100=0.16%, 250=1.56%, 500=41.02% lat (msec) : 750=18.55%, 1000=23.20%, 2000=15.43% cpu : usr=0.12%, sys=0.60%, ctx=4814, 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=187KiB/s (191kB/s), 46.3KiB/s-47.1KiB/s (47.4kB/s-48.3kB/s), io=19.6MiB (20.5MB), run=107145-107495msec WRITE: bw=194KiB/s (199kB/s), 48.2KiB/s-49.0KiB/s (49.4kB/s-50.2kB/s), io=20.4MiB (21.4MB), run=107145-107495msec 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=147615: Tue Sep 29 16:56:27 2026 read: IOPS=2, BW=89.9MiB/s (94.3MB/s)(40.0MiB/445msec) slat (nsec): min=61994k, max=61994k, avg=61994249.00, stdev= 0.00 clat (nsec): min=361312k, max=361312k, avg=361312423.00, stdev= 0.00 lat (nsec): min=423312k, max=423312k, avg=423311748.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 363], 50.00th=[ 363], 60.00th=[ 363], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.25%, ctx=46, 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=89.9MiB/s (94.3MB/s), 89.9MiB/s-89.9MiB/s (94.3MB/s-94.3MB/s), io=40.0MiB (41.9MB), run=445-445msec 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