== sanity test 124b: lru resize (performance test) ================================================================================= 21:10:36 (1787706636)
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 701 (time 1787706651.99 total 10.00 last 70.07)
 - open/close 1576 (time 1787706661.99 total 20.01 last 87.47)
 - open/close 2539 (time 1787706672.00 total 30.01 last 96.26)
 - open/close 3339 (time 1787706682.00 total 40.02 last 79.96)
 - open/close 4286 (time 1787706692.00 total 50.02 last 94.68)
 - open/close 5150 (time 1787706702.01 total 60.02 last 86.36)
 - open/close 5824 (time 1787706712.02 total 70.03 last 67.34)
 - open/close 6523 (time 1787706722.03 total 80.04 last 69.82)
 - open/close 7268 (time 1787706732.03 total 90.05 last 74.48)
total: 8000 open/close in 98.25 seconds: 81.43 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 141 seconds
lru_size = 400
400
 - unlinked 0 (time 1787706893 ; total 0 ; last 0)
total: 8000 unlinks in 112 seconds: 71.428574 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 553 (time 1787707022.58 total 10.00 last 55.28)
 - open/close 1075 (time 1787707032.60 total 20.02 last 52.11)
 - open/close 1735 (time 1787707042.60 total 30.03 last 65.97)
 - open/close 2793 (time 1787707052.60 total 40.03 last 105.80)
 - open/close 3583 (time 1787707062.60 total 50.03 last 78.99)
 - open/close 4415 (time 1787707072.63 total 60.05 last 82.99)
 - open/close 5276 (time 1787707082.63 total 70.06 last 86.08)
 - open/close 5962 (time 1787707092.64 total 80.06 last 68.57)
 - open/close 6599 (time 1787707102.64 total 90.06 last 63.69)
 - open/close 7355 (time 1787707112.65 total 100.07 last 75.51)
total: 8000 open/close in 108.38 seconds: 73.81 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 86 seconds
lru_size = 4052
3955
ls -la is 39% faster with lru resize enabled
 - unlinked 0 (time 1787707229 ; total 0 ; last 0)
total: 8000 unlinks in 56 seconds: 142.857147 unlinks/second