== sanity test 124b: lru resize (performance test) ================================================================================= 22:29:59 (1789612199)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 803 (time 1789612215.06 total 10.01 last 80.19)
 - open/close 1533 (time 1789612225.07 total 20.02 last 72.94)
 - open/close 2289 (time 1789612235.09 total 30.04 last 75.43)
 - open/close 2958 (time 1789612245.12 total 40.07 last 66.76)
 - open/close 3647 (time 1789612255.12 total 50.07 last 68.86)
 - open/close 4366 (time 1789612265.14 total 60.09 last 71.80)
 - open/close 4991 (time 1789612275.14 total 70.09 last 62.48)
 - open/close 5676 (time 1789612285.15 total 80.10 last 68.46)
 - open/close 6454 (time 1789612295.15 total 90.10 last 77.75)
 - open/close 7229 (time 1789612305.17 total 100.12 last 77.34)
 - open/close 7967 (time 1789612315.18 total 110.13 last 73.75)
total: 8000 open/close in 110.62 seconds: 72.32 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 163 seconds
lru_size = 400
400
 - unlinked 0 (time 1789612488 ; total 0 ; last 0)
total: 8000 unlinks in 105 seconds: 76.190475 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 823 (time 1789612608.35 total 10.03 last 82.04)
 - open/close 1607 (time 1789612618.36 total 20.04 last 78.35)
 - open/close 2475 (time 1789612628.36 total 30.04 last 86.78)
 - open/close 3326 (time 1789612638.36 total 40.04 last 85.09)
 - open/close 4203 (time 1789612648.38 total 50.06 last 87.52)
 - open/close 5104 (time 1789612658.39 total 60.07 last 90.07)
 - open/close 5919 (time 1789612668.39 total 70.07 last 81.45)
 - open/close 6749 (time 1789612678.39 total 80.07 last 82.99)
 - open/close 7582 (time 1789612688.40 total 90.08 last 83.26)
total: 8000 open/close in 95.33 seconds: 83.92 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 89 seconds
lru_size = 4006
4001
ls -la is 45% faster with lru resize enabled
 - unlinked 0 (time 1789612803 ; total 0 ; last 0)
total: 8000 unlinks in 68 seconds: 117.647057 unlinks/second