== sanity test 124b: lru resize (performance test) ================================================================================= 04:01:41 (1788940901)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 719 (time 1788940916.70 total 10.01 last 71.80)
 - open/close 1440 (time 1788940926.71 total 20.02 last 72.04)
 - open/close 2208 (time 1788940936.72 total 30.03 last 76.73)
 - open/close 3123 (time 1788940946.72 total 40.03 last 91.48)
 - open/close 3852 (time 1788940956.72 total 50.04 last 72.87)
 - open/close 4641 (time 1788940966.72 total 60.04 last 78.90)
 - open/close 5318 (time 1788940976.74 total 70.06 last 67.56)
 - open/close 5972 (time 1788940986.76 total 80.07 last 65.33)
 - open/close 6814 (time 1788940996.77 total 90.09 last 84.05)
 - open/close 7555 (time 1788941006.78 total 100.09 last 74.06)
total: 8000 open/close in 105.73 seconds: 75.66 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 189 seconds
lru_size = 400
 - unlinked 0 (time 1788941212 ; total 0 ; last 0)
total: 8000 unlinks in 104 seconds: 76.923080 unlinks/second
 - open/close 844 (time 1788941331.42 total 10.00 last 84.37)
 - open/close 1581 (time 1788941341.42 total 20.01 last 73.65)
 - open/close 2386 (time 1788941351.44 total 30.03 last 80.37)
 - open/close 3200 (time 1788941361.44 total 40.03 last 81.38)
 - open/close 4007 (time 1788941371.44 total 50.03 last 80.68)
 - open/close 4834 (time 1788941381.45 total 60.04 last 82.64)
 - open/close 5507 (time 1788941391.45 total 70.04 last 67.27)
 - open/close 6277 (time 1788941401.46 total 80.05 last 76.97)
 - open/close 6970 (time 1788941411.47 total 90.06 last 69.23)
 - open/close 7689 (time 1788941421.47 total 100.06 last 71.87)
total: 8000 open/close in 106.45 seconds: 75.16 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 75 seconds
lru_size = 8005
ls -la is 60% faster with lru resize enabled
 - unlinked 0 (time 1788941529 ; total 0 ; last 0)
total: 8000 unlinks in 75 seconds: 106.666664 unlinks/second