== sanity test 124b: lru resize (performance test) ================================================================================= 00:16:30 (1788840990)
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 962 (time 1788841005.71 total 10.01 last 96.14)
 - open/close 1837 (time 1788841015.71 total 20.01 last 87.47)
 - open/close 2649 (time 1788841025.72 total 30.01 last 81.16)
 - open/close 3476 (time 1788841035.72 total 40.02 last 82.68)
 - open/close 4318 (time 1788841045.72 total 50.02 last 84.17)
 - open/close 5148 (time 1788841055.73 total 60.03 last 82.93)
 - open/close 5758 (time 1788841065.75 total 70.05 last 60.86)
 - open/close 6499 (time 1788841075.75 total 80.05 last 74.09)
 - open/close 7244 (time 1788841085.75 total 90.05 last 74.49)
 - open/close 7964 (time 1788841095.75 total 100.05 last 72.00)
total: 8000 open/close in 100.75 seconds: 79.41 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 1788841263 ; total 0 ; last 0)
total: 8000 unlinks in 97 seconds: 82.474228 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 855 (time 1788841376.07 total 10.01 last 85.45)
 - open/close 1491 (time 1788841386.07 total 20.01 last 63.59)
 - open/close 2165 (time 1788841396.08 total 30.02 last 67.33)
 - open/close 2805 (time 1788841406.08 total 40.02 last 64.00)
 - open/close 3741 (time 1788841416.08 total 50.02 last 93.59)
 - open/close 4600 (time 1788841426.09 total 60.03 last 85.85)
 - open/close 5531 (time 1788841436.09 total 70.03 last 93.03)
 - open/close 6437 (time 1788841446.10 total 80.04 last 90.54)
 - open/close 7186 (time 1788841456.13 total 90.07 last 74.64)
 - open/close 7896 (time 1788841466.14 total 100.08 last 70.95)
total: 8000 open/close in 101.22 seconds: 79.03 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 45% faster with lru resize enabled
 - unlinked 0 (time 1788841574 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second