== sanity test 124b: lru resize (performance test) ================================================================================= 23:28:14 (1788924494)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 906 (time 1788924509.76 total 10.01 last 90.55)
 - open/close 1707 (time 1788924519.76 total 20.01 last 80.10)
 - open/close 2443 (time 1788924529.77 total 30.01 last 73.53)
 - open/close 3237 (time 1788924539.78 total 40.03 last 79.26)
 - open/close 3994 (time 1788924549.79 total 50.04 last 75.66)
 - open/close 4785 (time 1788924559.79 total 60.04 last 79.07)
 - open/close 5553 (time 1788924569.79 total 70.04 last 76.80)
 - open/close 6385 (time 1788924579.80 total 80.05 last 83.13)
 - open/close 7223 (time 1788924589.81 total 90.05 last 83.75)
total: 8000 open/close in 99.79 seconds: 80.17 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 164 seconds
lru_size = 400
400
 - unlinked 0 (time 1788924774 ; total 0 ; last 0)
total: 8000 unlinks in 97 seconds: 82.474228 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 815 (time 1788924886.13 total 10.02 last 81.35)
 - open/close 1506 (time 1788924896.14 total 20.03 last 69.02)
 - open/close 2021 (time 1788924906.17 total 30.05 last 51.37)
 - open/close 2801 (time 1788924916.18 total 40.07 last 77.90)
 - open/close 3488 (time 1788924926.19 total 50.07 last 68.65)
 - open/close 4354 (time 1788924936.19 total 60.08 last 86.55)
 - open/close 5069 (time 1788924946.20 total 70.09 last 71.46)
 - open/close 5850 (time 1788924956.20 total 80.09 last 78.05)
 - open/close 6612 (time 1788924966.22 total 90.11 last 76.10)
 - open/close 7399 (time 1788924976.23 total 100.12 last 78.60)
total: 8000 open/close in 108.43 seconds: 73.78 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 97 seconds
lru_size = 4052
3955
ls -la is 40% faster with lru resize enabled
 - unlinked 0 (time 1788925105 ; total 0 ; last 0)
total: 8000 unlinks in 76 seconds: 105.263161 unlinks/second