== sanity test 124b: lru resize (performance test) ================================================================================= 04:00:28 (1788940828)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 929 (time 1788940843.51 total 10.00 last 92.90)
 - open/close 1797 (time 1788940853.52 total 20.01 last 86.76)
 - open/close 2573 (time 1788940863.52 total 30.01 last 77.55)
 - open/close 3585 (time 1788940873.53 total 40.01 last 101.18)
 - open/close 4502 (time 1788940883.53 total 50.02 last 91.68)
 - open/close 5509 (time 1788940893.54 total 60.03 last 100.62)
 - open/close 6397 (time 1788940903.55 total 70.04 last 88.71)
 - open/close 7161 (time 1788940913.55 total 80.04 last 76.36)
 - open/close 7990 (time 1788940923.56 total 90.05 last 82.84)
total: 8000 open/close in 90.16 seconds: 88.73 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 167 seconds
lru_size = 400
400
 - unlinked 0 (time 1788941105 ; total 0 ; last 0)
total: 8000 unlinks in 88 seconds: 90.909088 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 765 (time 1788941209.61 total 10.00 last 76.50)
 - open/close 1514 (time 1788941219.63 total 20.02 last 74.78)
 - open/close 2263 (time 1788941229.64 total 30.02 last 74.86)
 - open/close 3202 (time 1788941239.64 total 40.02 last 93.89)
 - open/close 4183 (time 1788941249.64 total 50.03 last 98.07)
 - open/close 5082 (time 1788941259.65 total 60.04 last 89.81)
 - open/close 6020 (time 1788941269.66 total 70.05 last 93.67)
 - open/close 6980 (time 1788941279.67 total 80.06 last 95.95)
 - open/close 7955 (time 1788941289.68 total 90.07 last 97.40)
total: 8000 open/close in 90.51 seconds: 88.39 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 82 seconds
lru_size = 4052
3955
ls -la is 50% faster with lru resize enabled
 - unlinked 0 (time 1788941395 ; total 0 ; last 0)
total: 8000 unlinks in 63 seconds: 126.984123 unlinks/second