== sanity test 124b: lru resize (performance test) ================================================================================= 00:43:41 (1789274621)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 660 (time 1789274637.46 total 10.01 last 65.94)
 - open/close 1307 (time 1789274647.46 total 20.02 last 64.66)
 - open/close 1879 (time 1789274657.47 total 30.02 last 57.18)
 - open/close 2516 (time 1789274667.48 total 40.03 last 63.64)
 - open/close 3187 (time 1789274677.51 total 50.06 last 66.87)
 - open/close 3749 (time 1789274687.56 total 60.11 last 55.93)
 - open/close 4390 (time 1789274697.60 total 70.15 last 63.82)
 - open/close 4927 (time 1789274707.62 total 80.17 last 53.59)
 - open/close 5489 (time 1789274717.66 total 90.22 last 55.97)
 - open/close 6059 (time 1789274727.68 total 100.23 last 56.93)
 - open/close 6701 (time 1789274737.69 total 110.24 last 64.14)
 - open/close 7284 (time 1789274747.69 total 120.24 last 58.27)
 - open/close 7967 (time 1789274757.70 total 130.25 last 68.24)
total: 8000 open/close in 130.75 seconds: 61.18 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 194 seconds
lru_size = 400
 - unlinked 0 (time 1789274963 ; total 0 ; last 0)
total: 8000 unlinks in 124 seconds: 64.516129 unlinks/second
 - open/close 528 (time 1789275103.54 total 10.00 last 52.78)
 - open/close 1102 (time 1789275113.55 total 20.01 last 57.37)
 - open/close 1791 (time 1789275123.55 total 30.02 last 68.86)
 - open/close 2457 (time 1789275133.55 total 40.02 last 66.60)
 - open/close 3092 (time 1789275143.56 total 50.03 last 63.44)
 - open/close 3714 (time 1789275153.57 total 60.03 last 62.17)
 - open/close 4415 (time 1789275163.57 total 70.04 last 70.06)
 - open/close 5182 (time 1789275173.58 total 80.05 last 76.61)
 - open/close 5867 (time 1789275183.59 total 90.06 last 68.43)
 - open/close 6432 (time 1789275193.60 total 100.06 last 56.46)
 - open/close 6941 (time 1789275203.61 total 110.07 last 50.86)
 - open/close 7480 (time 1789275213.61 total 120.08 last 53.88)
total: 8000 open/close in 128.38 seconds: 62.31 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 83 seconds
lru_size = 8005
ls -la is 57% faster with lru resize enabled
 - unlinked 0 (time 1789275325 ; total 0 ; last 0)
total: 8000 unlinks in 80 seconds: 100.000000 unlinks/second