== sanity test 124b: lru resize (performance test) ================================================================================= 09:43:40 (1787838220)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 857 (time 1787838234.65 total 10.01 last 85.64)
 - open/close 1650 (time 1787838244.67 total 20.03 last 79.15)
 - open/close 2407 (time 1787838254.68 total 30.03 last 75.63)
 - open/close 3128 (time 1787838264.69 total 40.05 last 72.00)
 - open/close 3851 (time 1787838274.71 total 50.07 last 72.17)
 - open/close 4607 (time 1787838284.72 total 60.07 last 75.54)
 - open/close 5393 (time 1787838294.74 total 70.10 last 78.40)
 - open/close 6066 (time 1787838304.75 total 80.10 last 67.29)
 - open/close 6697 (time 1787838314.75 total 90.10 last 63.10)
 - open/close 7356 (time 1787838324.75 total 100.11 last 65.87)
 - open/close 7893 (time 1787838334.77 total 110.12 last 53.62)
total: 8000 open/close in 112.27 seconds: 71.26 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 160 seconds
lru_size = 400
400
 - unlinked 0 (time 1787838509 ; total 0 ; last 0)
total: 8000 unlinks in 100 seconds: 80.000000 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 949 (time 1787838625.35 total 10.00 last 94.89)
 - open/close 1851 (time 1787838635.36 total 20.01 last 90.07)
 - open/close 2722 (time 1787838645.37 total 30.02 last 87.07)
 - open/close 3579 (time 1787838655.37 total 40.02 last 85.66)
 - open/close 4486 (time 1787838665.38 total 50.03 last 90.64)
 - open/close 5339 (time 1787838675.38 total 60.03 last 85.29)
 - open/close 6178 (time 1787838685.39 total 70.05 last 83.79)
 - open/close 6934 (time 1787838695.40 total 80.05 last 75.55)
 - open/close 7826 (time 1787838705.41 total 90.06 last 89.15)
total: 8000 open/close in 92.78 seconds: 86.23 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 85 seconds
lru_size = 4052
3955
ls -la is 46% faster with lru resize enabled
 - unlinked 0 (time 1787838812 ; total 0 ; last 0)
total: 8000 unlinks in 61 seconds: 131.147537 unlinks/second