== sanity test 124b: lru resize (performance test) ================================================================================= 12:17:27 (1786810647)
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 548 (time 1786810662.90 total 10.01 last 54.74)
 - open/close 1038 (time 1786810672.91 total 20.02 last 48.94)
 - open/close 1780 (time 1786810682.91 total 30.03 last 74.18)
 - open/close 2477 (time 1786810692.92 total 40.03 last 69.67)
 - open/close 3227 (time 1786810702.92 total 50.04 last 74.94)
 - open/close 3946 (time 1786810712.95 total 60.06 last 71.74)
 - open/close 4673 (time 1786810722.95 total 70.07 last 72.66)
 - open/close 5451 (time 1786810732.95 total 80.07 last 77.80)
 - open/close 6054 (time 1786810742.96 total 90.07 last 60.28)
 - open/close 6747 (time 1786810752.96 total 100.08 last 69.26)
 - open/close 7539 (time 1786810762.97 total 110.08 last 79.16)
total: 8000 open/close in 116.30 seconds: 68.79 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 89 seconds
lru_size = 400
400
 - unlinked 0 (time 1786810869 ; total 0 ; last 0)
total: 8000 unlinks in 102 seconds: 78.431374 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 769 (time 1786810986.79 total 10.01 last 76.85)
 - open/close 1491 (time 1786810996.81 total 20.03 last 72.02)
 - open/close 2353 (time 1786811006.82 total 30.04 last 86.14)
 - open/close 3163 (time 1786811016.82 total 40.04 last 80.98)
 - open/close 4040 (time 1786811026.83 total 50.05 last 87.65)
 - open/close 4840 (time 1786811036.83 total 60.05 last 79.96)
 - open/close 5729 (time 1786811046.84 total 70.06 last 88.84)
 - open/close 6554 (time 1786811056.85 total 80.07 last 82.39)
 - open/close 7346 (time 1786811066.86 total 90.08 last 79.15)
total: 8000 open/close in 97.44 seconds: 82.10 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 91 seconds
lru_size = 4052
3955
ls -la is 2% slower with lru resize enabled
 - unlinked 0 (time 1786811185 ; total 0 ; last 0)
total: 8000 unlinks in 74 seconds: 108.108109 unlinks/second