== sanity test 124b: lru resize (performance test) ================================================================================= 10:53:20 (1787324000)
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 806 (time 1787324014.95 total 10.01 last 80.56)
 - open/close 1668 (time 1787324024.97 total 20.03 last 85.99)
 - open/close 2465 (time 1787324034.98 total 30.04 last 79.65)
 - open/close 3397 (time 1787324044.99 total 40.05 last 93.09)
 - open/close 4188 (time 1787324055.00 total 50.05 last 79.05)
 - open/close 5175 (time 1787324065.01 total 60.07 last 98.57)
 - open/close 6049 (time 1787324075.01 total 70.07 last 87.39)
 - open/close 6902 (time 1787324085.02 total 80.07 last 85.27)
 - open/close 7688 (time 1787324095.05 total 90.10 last 78.37)
total: 8000 open/close in 93.55 seconds: 85.52 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 153 seconds
lru_size = 400
400
 - unlinked 0 (time 1787324260 ; total 0 ; last 0)
total: 8000 unlinks in 96 seconds: 83.333336 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 724 (time 1787324371.12 total 10.00 last 72.37)
 - open/close 1583 (time 1787324381.13 total 20.02 last 85.77)
 - open/close 2444 (time 1787324391.15 total 30.04 last 85.95)
 - open/close 3307 (time 1787324401.17 total 40.06 last 86.13)
 - open/close 4257 (time 1787324411.18 total 50.06 last 94.93)
 - open/close 5104 (time 1787324421.18 total 60.07 last 84.69)
 - open/close 6022 (time 1787324431.19 total 70.07 last 91.73)
 - open/close 6923 (time 1787324441.20 total 80.08 last 90.00)
 - open/close 7799 (time 1787324451.21 total 90.10 last 87.49)
total: 8000 open/close in 92.12 seconds: 86.85 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 93 seconds
lru_size = 4006
4001
ls -la is 39% faster with lru resize enabled
 - unlinked 0 (time 1787324570 ; total 0 ; last 0)
total: 8000 unlinks in 60 seconds: 133.333328 unlinks/second