== sanity test 124b: lru resize (performance test) ================================================================================= 01:15:41 (1786770941)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 961 (time 1786770955.77 total 10.01 last 96.05)
 - open/close 1796 (time 1786770965.78 total 20.02 last 83.41)
 - open/close 2599 (time 1786770975.79 total 30.02 last 80.27)
 - open/close 3286 (time 1786770985.80 total 40.03 last 68.61)
 - open/close 4188 (time 1786770995.80 total 50.04 last 90.14)
 - open/close 5126 (time 1786771005.81 total 60.04 last 93.77)
 - open/close 5912 (time 1786771015.81 total 70.05 last 78.56)
 - open/close 6761 (time 1786771025.82 total 80.05 last 84.86)
 - open/close 7606 (time 1786771035.82 total 90.05 last 84.47)
total: 8000 open/close in 94.20 seconds: 84.93 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 146 seconds
lru_size = 400
400
 - unlinked 0 (time 1786771196 ; total 0 ; last 0)
total: 8000 unlinks in 96 seconds: 83.333336 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 989 (time 1786771308.73 total 10.02 last 98.70)
 - open/close 1900 (time 1786771318.73 total 20.02 last 91.09)
 - open/close 2826 (time 1786771328.74 total 30.03 last 92.55)
 - open/close 3887 (time 1786771338.74 total 40.03 last 106.05)
 - open/close 4896 (time 1786771348.74 total 50.03 last 100.87)
 - open/close 5818 (time 1786771358.75 total 60.04 last 92.19)
 - open/close 6817 (time 1786771368.75 total 70.04 last 99.88)
 - open/close 7743 (time 1786771378.76 total 80.05 last 92.51)
total: 8000 open/close in 83.49 seconds: 95.82 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 80 seconds
lru_size = 4052
3955
ls -la is 45% faster with lru resize enabled
 - unlinked 0 (time 1786771487 ; total 0 ; last 0)
total: 8000 unlinks in 55 seconds: 145.454544 unlinks/second