== sanity test 124b: lru resize (performance test) ================================================================================= 00:14:19 (1787804059)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 961 (time 1787804076.39 total 10.00 last 96.07)
 - open/close 1782 (time 1787804086.39 total 20.01 last 82.06)
 - open/close 2651 (time 1787804096.39 total 30.01 last 86.89)
 - open/close 3398 (time 1787804106.40 total 40.02 last 74.64)
 - open/close 4272 (time 1787804116.41 total 50.02 last 87.36)
 - open/close 4989 (time 1787804126.43 total 60.04 last 71.53)
 - open/close 5800 (time 1787804136.44 total 70.05 last 81.02)
 - open/close 6546 (time 1787804146.45 total 80.06 last 74.55)
 - open/close 7254 (time 1787804156.47 total 90.08 last 70.64)
total: 8000 open/close in 99.62 seconds: 80.30 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 144 seconds
lru_size = 400
400
 - unlinked 0 (time 1787804319 ; total 0 ; last 0)
total: 8000 unlinks in 86 seconds: 93.023254 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 929 (time 1787804419.58 total 10.00 last 92.86)
 - open/close 1997 (time 1787804429.59 total 20.01 last 106.77)
 - open/close 2904 (time 1787804439.60 total 30.02 last 90.58)
 - open/close 3867 (time 1787804449.61 total 40.03 last 96.22)
 - open/close 4911 (time 1787804459.61 total 50.03 last 104.35)
 - open/close 5969 (time 1787804469.61 total 60.04 last 105.79)
 - open/close 6928 (time 1787804479.63 total 70.05 last 95.76)
 - open/close 7823 (time 1787804489.63 total 80.05 last 89.48)
total: 8000 open/close in 82.25 seconds: 97.27 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 81 seconds
lru_size = 4006
4001
ls -la is 43% faster with lru resize enabled
 - unlinked 0 (time 1787804592 ; total 0 ; last 0)
total: 8000 unlinks in 45 seconds: 177.777771 unlinks/second