== sanity test 124b: lru resize (performance test) ================================================================================= 16:50:18 (1787863818)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 726 (time 1787863833.31 total 10.00 last 72.58)
 - open/close 1492 (time 1787863843.31 total 20.01 last 76.56)
 - open/close 2124 (time 1787863853.32 total 30.02 last 63.14)
 - open/close 2792 (time 1787863863.32 total 40.02 last 66.77)
 - open/close 3448 (time 1787863873.34 total 50.03 last 65.51)
 - open/close 4066 (time 1787863883.35 total 60.05 last 61.73)
 - open/close 4684 (time 1787863893.35 total 70.05 last 61.77)
 - open/close 5375 (time 1787863903.35 total 80.05 last 69.09)
 - open/close 6049 (time 1787863913.37 total 90.07 last 67.31)
 - open/close 6708 (time 1787863923.37 total 100.07 last 65.86)
 - open/close 7319 (time 1787863933.39 total 110.09 last 61.02)
 - open/close 7912 (time 1787863943.39 total 120.09 last 59.30)
total: 8000 open/close in 121.87 seconds: 65.64 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 97 seconds
lru_size = 400
400
 - unlinked 0 (time 1787864053 ; total 0 ; last 0)
total: 8000 unlinks in 114 seconds: 70.175438 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 739 (time 1787864182.89 total 10.00 last 73.87)
 - open/close 1486 (time 1787864192.90 total 20.01 last 74.65)
 - open/close 2219 (time 1787864202.90 total 30.01 last 73.28)
 - open/close 2926 (time 1787864212.90 total 40.02 last 70.66)
 - open/close 3659 (time 1787864222.90 total 50.02 last 73.29)
 - open/close 4370 (time 1787864232.93 total 60.04 last 70.95)
 - open/close 5081 (time 1787864242.93 total 70.04 last 71.08)
 - open/close 5813 (time 1787864252.94 total 80.06 last 73.12)
 - open/close 6476 (time 1787864262.95 total 90.06 last 66.26)
 - open/close 7145 (time 1787864272.96 total 100.07 last 66.83)
 - open/close 7900 (time 1787864282.96 total 110.08 last 75.46)
total: 8000 open/close in 111.47 seconds: 71.77 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 91 seconds
lru_size = 4006
4001
ls -la is 6% faster with lru resize enabled
 - unlinked 0 (time 1787864395 ; total 0 ; last 0)
total: 8000 unlinks in 70 seconds: 114.285713 unlinks/second