== sanity test 124b: lru resize (performance test) ================================================================================= 07:33:24 (1787398404)
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 800 (time 1787398419.88 total 10.01 last 79.94)
 - open/close 1412 (time 1787398429.88 total 20.01 last 61.18)
 - open/close 2142 (time 1787398439.89 total 30.02 last 72.90)
 - open/close 2973 (time 1787398449.90 total 40.03 last 83.08)
 - open/close 3881 (time 1787398459.90 total 50.03 last 90.78)
 - open/close 4785 (time 1787398469.91 total 60.03 last 90.34)
 - open/close 5674 (time 1787398479.91 total 70.04 last 88.87)
 - open/close 6599 (time 1787398489.92 total 80.05 last 92.43)
 - open/close 7477 (time 1787398499.93 total 90.06 last 87.71)
total: 8000 open/close in 95.80 seconds: 83.50 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 149 seconds
lru_size = 400
400
 - unlinked 0 (time 1787398664 ; total 0 ; last 0)
total: 8000 unlinks in 92 seconds: 86.956520 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 916 (time 1787398770.71 total 10.01 last 91.53)
 - open/close 1780 (time 1787398780.71 total 20.01 last 86.33)
 - open/close 2641 (time 1787398790.72 total 30.02 last 86.01)
 - open/close 3433 (time 1787398800.75 total 40.05 last 79.01)
 - open/close 4349 (time 1787398810.75 total 50.05 last 91.60)
 - open/close 5263 (time 1787398820.75 total 60.05 last 91.36)
 - open/close 6213 (time 1787398830.76 total 70.06 last 94.94)
 - open/close 7176 (time 1787398840.76 total 80.06 last 96.25)
total: 8000 open/close in 89.10 seconds: 89.78 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 80 seconds
lru_size = 4006
4001
ls -la is 46% faster with lru resize enabled
 - unlinked 0 (time 1787398950 ; total 0 ; last 0)
total: 8000 unlinks in 55 seconds: 145.454544 unlinks/second