== sanity test 124b: lru resize (performance test) ================================================================================= 05:11:51 (1787389911)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 712 (time 1787389927.42 total 10.01 last 71.11)
 - open/close 1367 (time 1787389937.45 total 20.04 last 65.34)
 - open/close 2067 (time 1787389947.45 total 30.04 last 69.96)
 - open/close 2849 (time 1787389957.46 total 40.05 last 78.16)
 - open/close 3608 (time 1787389967.46 total 50.05 last 75.87)
 - open/close 4391 (time 1787389977.48 total 60.06 last 78.20)
 - open/close 5166 (time 1787389987.49 total 70.08 last 77.38)
 - open/close 6014 (time 1787389997.50 total 80.09 last 84.74)
 - open/close 6805 (time 1787390007.50 total 90.09 last 79.06)
 - open/close 7590 (time 1787390017.51 total 100.10 last 78.47)
total: 8000 open/close in 105.33 seconds: 75.95 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 169 seconds
lru_size = 400
400
 - unlinked 0 (time 1787390201 ; total 0 ; last 0)
total: 8000 unlinks in 103 seconds: 77.669907 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 816 (time 1787390319.92 total 10.01 last 81.56)
 - open/close 1607 (time 1787390329.92 total 20.01 last 79.07)
 - open/close 2447 (time 1787390339.93 total 30.02 last 83.92)
 - open/close 3073 (time 1787390349.94 total 40.03 last 62.53)
 - open/close 3858 (time 1787390359.95 total 50.04 last 78.46)
 - open/close 4638 (time 1787390369.96 total 60.05 last 77.86)
 - open/close 5445 (time 1787390379.97 total 70.06 last 80.67)
 - open/close 6293 (time 1787390389.97 total 80.06 last 84.80)
 - open/close 7101 (time 1787390399.97 total 90.06 last 80.77)
 - open/close 7933 (time 1787390409.97 total 100.06 last 83.20)
total: 8000 open/close in 100.97 seconds: 79.23 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 89 seconds
lru_size = 4006
4001
ls -la is 47% faster with lru resize enabled
 - unlinked 0 (time 1787390521 ; total 0 ; last 0)
total: 8000 unlinks in 61 seconds: 131.147537 unlinks/second