== sanity test 124b: lru resize (performance test) ================================================================================= 17:50:40 (1787349040)
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 761 (time 1787349057.53 total 10.00 last 76.06)
 - open/close 1616 (time 1787349067.53 total 20.01 last 85.45)
 - open/close 2322 (time 1787349077.56 total 30.04 last 70.42)
 - open/close 2807 (time 1787349087.56 total 40.04 last 48.49)
 - open/close 3315 (time 1787349097.56 total 50.04 last 50.79)
 - open/close 3901 (time 1787349107.57 total 60.05 last 58.57)
 - open/close 4508 (time 1787349117.57 total 70.05 last 60.65)
 - open/close 5197 (time 1787349127.58 total 80.06 last 68.88)
 - open/close 5739 (time 1787349137.58 total 90.06 last 54.17)
 - open/close 6522 (time 1787349147.61 total 100.09 last 78.12)
 - open/close 7253 (time 1787349157.65 total 110.13 last 72.79)
 - open/close 7937 (time 1787349167.65 total 120.13 last 68.39)
total: 8000 open/close in 121.02 seconds: 66.10 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 179 seconds
lru_size = 400
400
 - unlinked 0 (time 1787349360 ; total 0 ; last 0)
total: 8000 unlinks in 113 seconds: 70.796463 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 893 (time 1787349489.23 total 10.00 last 89.30)
 - open/close 1746 (time 1787349499.24 total 20.01 last 85.20)
 - open/close 2661 (time 1787349509.24 total 30.01 last 91.49)
 - open/close 3527 (time 1787349519.25 total 40.02 last 86.54)
 - open/close 4404 (time 1787349529.25 total 50.02 last 87.68)
 - open/close 5210 (time 1787349539.26 total 60.03 last 80.49)
 - open/close 6076 (time 1787349549.27 total 70.04 last 86.53)
 - open/close 6915 (time 1787349559.28 total 80.05 last 83.86)
 - open/close 7800 (time 1787349569.28 total 90.05 last 88.49)
total: 8000 open/close in 92.30 seconds: 86.68 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 83 seconds
lru_size = 4052
3955
ls -la is 53% faster with lru resize enabled
 - unlinked 0 (time 1787349674 ; total 0 ; last 0)
total: 8000 unlinks in 60 seconds: 133.333328 unlinks/second