== sanity test 124b: lru resize (performance test) ================================================================================= 00:12:32 (1789186352)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 885 (time 1789186365.95 total 10.01 last 88.39)
 - open/close 1725 (time 1789186375.96 total 20.03 last 83.87)
 - open/close 2628 (time 1789186385.97 total 30.03 last 90.24)
 - open/close 3510 (time 1789186395.98 total 40.04 last 88.14)
 - open/close 4394 (time 1789186405.98 total 50.04 last 88.37)
 - open/close 5239 (time 1789186415.98 total 60.05 last 84.47)
 - open/close 6153 (time 1789186426.00 total 70.07 last 91.23)
 - open/close 7017 (time 1789186436.00 total 80.07 last 86.40)
 - open/close 7906 (time 1789186446.01 total 90.07 last 88.87)
total: 8000 open/close in 91.20 seconds: 87.72 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 132 seconds
lru_size = 400
400
 - unlinked 0 (time 1789186587 ; total 0 ; last 0)
total: 8000 unlinks in 86 seconds: 93.023254 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 894 (time 1789186686.75 total 10.00 last 89.36)
 - open/close 1895 (time 1789186696.75 total 20.01 last 100.09)
 - open/close 2924 (time 1789186706.75 total 30.01 last 102.86)
 - open/close 3911 (time 1789186716.76 total 40.01 last 98.67)
 - open/close 4837 (time 1789186726.76 total 50.02 last 92.56)
 - open/close 5802 (time 1789186736.77 total 60.02 last 96.45)
 - open/close 6684 (time 1789186746.77 total 70.03 last 88.15)
 - open/close 7674 (time 1789186756.78 total 80.03 last 98.95)
total: 8000 open/close in 83.64 seconds: 95.65 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 52 seconds
lru_size = 4006
4001
ls -la is 60% faster with lru resize enabled
 - unlinked 0 (time 1789186826 ; total 0 ; last 0)
total: 8000 unlinks in 47 seconds: 170.212769 unlinks/second