== sanity test 124b: lru resize (performance test) ================================================================================= 05:04:04 (1787130244)
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 936 (time 1787130259.07 total 10.01 last 93.49)
 - open/close 1661 (time 1787130269.08 total 20.02 last 72.44)
 - open/close 2432 (time 1787130279.09 total 30.03 last 77.03)
 - open/close 3221 (time 1787130289.11 total 40.04 last 78.79)
 - open/close 4079 (time 1787130299.12 total 50.05 last 85.70)
 - open/close 4889 (time 1787130309.13 total 60.07 last 80.91)
 - open/close 5788 (time 1787130319.13 total 70.07 last 89.86)
 - open/close 6608 (time 1787130329.14 total 80.08 last 81.95)
 - open/close 7411 (time 1787130339.14 total 90.08 last 80.28)
total: 8000 open/close in 96.69 seconds: 82.74 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 155 seconds
lru_size = 400
400
 - unlinked 0 (time 1787130511 ; total 0 ; last 0)
total: 8000 unlinks in 98 seconds: 81.632652 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 853 (time 1787130623.81 total 10.01 last 85.26)
 - open/close 1714 (time 1787130633.82 total 20.01 last 86.03)
 - open/close 2533 (time 1787130643.82 total 30.01 last 81.89)
 - open/close 3370 (time 1787130653.83 total 40.02 last 83.66)
 - open/close 4226 (time 1787130663.84 total 50.03 last 85.49)
 - open/close 5191 (time 1787130673.84 total 60.03 last 96.48)
 - open/close 6090 (time 1787130683.84 total 70.04 last 89.88)
 - open/close 7053 (time 1787130693.84 total 80.04 last 96.30)
total: 8000 open/close in 89.62 seconds: 89.26 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 91 seconds
lru_size = 4052
3955
ls -la is 41% faster with lru resize enabled
 - unlinked 0 (time 1787130813 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second