== sanity test 124b: lru resize (performance test) ================================================================================= 06:33:32 (1752489212)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 948 (time 1752489224.91 total 10.00 last 94.75)
 - open/close 1848 (time 1752489234.93 total 20.02 last 89.85)
 - open/close 2786 (time 1752489244.94 total 30.03 last 93.72)
 - open/close 3965 (time 1752489254.94 total 40.03 last 117.90)
 - open/close 4750 (time 1752489264.97 total 50.06 last 78.27)
 - open/close 5300 (time 1752489274.99 total 60.08 last 54.86)
 - open/close 5640 (time 1752489285.00 total 70.09 last 33.99)
 - open/close 6694 (time 1752489295.00 total 80.09 last 105.36)
 - open/close 7819 (time 1752489305.01 total 90.10 last 112.43)
total: 8000 open/close in 91.55 seconds: 87.38 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 90 seconds
lru_size = 400
 - unlinked 0 (time 1752489401 ; total 0 ; last 0)
total: 8000 unlinks in 48 seconds: 166.666672 unlinks/second
 - open/close 1357 (time 1752489461.80 total 10.00 last 135.70)
 - open/close 2641 (time 1752489471.80 total 20.01 last 128.31)
 - open/close 4070 (time 1752489481.81 total 30.01 last 142.84)
 - open/close 5208 (time 1752489491.81 total 40.02 last 113.76)
 - open/close 6534 (time 1752489501.81 total 50.02 last 132.57)
 - open/close 7909 (time 1752489511.83 total 60.03 last 137.33)
total: 8000 open/close in 60.71 seconds: 131.78 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 46 seconds
lru_size = 8005
ls -la is 48% faster with lru resize enabled
 - unlinked 0 (time 1752489569 ; total 0 ; last 0)
total: 8000 unlinks in 29 seconds: 275.862061 unlinks/second