== sanity test 124b: lru resize (performance test) ================================================================================= 03:20:35 (1789716035)
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 1149 (time 1789716048.45 total 10.00 last 114.86)
 - open/close 2288 (time 1789716058.45 total 20.01 last 113.86)
 - open/close 3210 (time 1789716068.46 total 30.02 last 92.12)
 - open/close 4338 (time 1789716078.46 total 40.02 last 112.76)
 - open/close 5412 (time 1789716088.47 total 50.03 last 107.34)
 - open/close 6551 (time 1789716098.47 total 60.03 last 113.83)
 - open/close 7709 (time 1789716108.48 total 70.04 last 115.67)
total: 8000 open/close in 72.62 seconds: 110.16 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 105 seconds
lru_size = 400
400
 - unlinked 0 (time 1789716222 ; total 0 ; last 0)
total: 8000 unlinks in 65 seconds: 123.076920 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1279 (time 1789716300.38 total 10.00 last 127.89)
 - open/close 2581 (time 1789716310.38 total 20.00 last 130.20)
 - open/close 3699 (time 1789716320.38 total 30.00 last 111.76)
 - open/close 4861 (time 1789716330.39 total 40.01 last 116.09)
 - open/close 6008 (time 1789716340.40 total 50.02 last 114.68)
 - open/close 7420 (time 1789716350.40 total 60.02 last 141.19)
total: 8000 open/close in 64.53 seconds: 123.96 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 50 seconds
lru_size = 4052
3955
ls -la is 52% faster with lru resize enabled
 - unlinked 0 (time 1789716417 ; total 0 ; last 0)
total: 8000 unlinks in 37 seconds: 216.216217 unlinks/second