== sanity test 124b: lru resize (performance test) ================================================================================= 11:40:00 (1789141200)
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 1074 (time 1789141216.04 total 10.01 last 107.28)
 - open/close 1924 (time 1789141226.05 total 20.01 last 84.97)
 - open/close 2820 (time 1789141236.05 total 30.02 last 89.57)
 - open/close 3880 (time 1789141246.06 total 40.02 last 105.92)
 - open/close 4777 (time 1789141256.06 total 50.03 last 89.70)
 - open/close 5820 (time 1789141266.07 total 60.03 last 104.23)
 - open/close 6854 (time 1789141276.07 total 70.04 last 103.35)
 - open/close 7822 (time 1789141286.07 total 80.04 last 96.80)
total: 8000 open/close in 81.79 seconds: 97.81 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 152 seconds
lru_size = 400
400
 - unlinked 0 (time 1789141450 ; total 0 ; last 0)
total: 8000 unlinks in 93 seconds: 86.021507 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1051 (time 1789141558.84 total 10.01 last 105.02)
 - open/close 2133 (time 1789141568.84 total 20.01 last 108.18)
 - open/close 3184 (time 1789141578.85 total 30.01 last 105.07)
 - open/close 4160 (time 1789141588.85 total 40.02 last 97.54)
 - open/close 5162 (time 1789141598.86 total 50.03 last 100.12)
 - open/close 6158 (time 1789141608.86 total 60.03 last 99.54)
 - open/close 7033 (time 1789141618.89 total 70.05 last 87.31)
 - open/close 7806 (time 1789141628.89 total 80.06 last 77.26)
total: 8000 open/close in 82.29 seconds: 97.21 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 94 seconds
lru_size = 4006
4001
ls -la is 38% faster with lru resize enabled
 - unlinked 0 (time 1789141745 ; total 0 ; last 0)
total: 8000 unlinks in 54 seconds: 148.148148 unlinks/second