== sanity test 124b: lru resize (performance test) ================================================================================= 10:23:56 (1788359036)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 611 (time 1788359051.78 total 10.00 last 61.10)
 - open/close 1169 (time 1788359061.79 total 20.01 last 55.76)
 - open/close 1626 (time 1788359071.84 total 30.06 last 45.45)
 - open/close 2133 (time 1788359081.86 total 40.08 last 50.61)
 - open/close 2745 (time 1788359091.87 total 50.09 last 61.13)
 - open/close 3458 (time 1788359101.87 total 60.09 last 71.28)
 - open/close 4126 (time 1788359112.00 total 70.22 last 65.97)
 - open/close 4351 (time 1788359122.00 total 80.22 last 22.49)
 - open/close 4580 (time 1788359132.05 total 90.28 last 22.78)
 - open/close 4824 (time 1788359142.11 total 100.33 last 24.26)
 - open/close 5363 (time 1788359152.19 total 110.42 last 53.45)
 - open/close 5607 (time 1788359162.23 total 120.45 last 24.31)
 - open/close 5883 (time 1788359172.27 total 130.50 last 27.48)
 - open/close 6308 (time 1788359182.28 total 140.51 last 42.46)
 - open/close 6952 (time 1788359192.28 total 150.51 last 64.40)
 - open/close 7723 (time 1788359202.29 total 160.52 last 77.02)
total: 8000 open/close in 163.99 seconds: 48.78 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 171 seconds
lru_size = 400
 - unlinked 0 (time 1788359385 ; total 0 ; last 0)
total: 8000 unlinks in 57 seconds: 140.350876 unlinks/second
 - open/close 1093 (time 1788359455.13 total 10.00 last 109.26)
 - open/close 2168 (time 1788359465.14 total 20.01 last 107.39)
 - open/close 3256 (time 1788359475.14 total 30.01 last 108.79)
 - open/close 4556 (time 1788359485.15 total 40.03 last 129.83)
 - open/close 5712 (time 1788359495.15 total 50.03 last 115.56)
 - open/close 6746 (time 1788359505.16 total 60.04 last 103.34)
 - open/close 7931 (time 1788359515.16 total 70.04 last 118.49)
total: 8000 open/close in 70.65 seconds: 113.23 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 55 seconds
lru_size = 8005
ls -la is 67% faster with lru resize enabled
 - unlinked 0 (time 1788359584 ; total 0 ; last 0)
total: 8000 unlinks in 43 seconds: 186.046509 unlinks/second