== sanity test 124b: lru resize (performance test) ================================================================================= 20:59:02 (1786409942)
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 782 (time 1786409956.99 total 10.01 last 78.15)
 - open/close 1640 (time 1786409967.03 total 20.04 last 85.51)
 - open/close 2484 (time 1786409977.03 total 30.04 last 84.38)
 - open/close 3390 (time 1786409987.03 total 40.05 last 90.56)
 - open/close 4269 (time 1786409997.03 total 50.05 last 87.89)
 - open/close 5109 (time 1786410007.04 total 60.06 last 83.93)
 - open/close 5842 (time 1786410017.15 total 70.16 last 72.55)
 - open/close 6688 (time 1786410027.16 total 80.17 last 84.52)
 - open/close 7509 (time 1786410037.17 total 90.18 last 82.01)
total: 8000 open/close in 96.29 seconds: 83.08 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 139 seconds
lru_size = 400
400
 - unlinked 0 (time 1786410194 ; total 0 ; last 0)
total: 8000 unlinks in 95 seconds: 84.210526 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 959 (time 1786410305.02 total 10.06 last 95.32)
 - open/close 1843 (time 1786410315.03 total 20.06 last 88.38)
 - open/close 2774 (time 1786410325.03 total 30.07 last 93.03)
 - open/close 3748 (time 1786410335.04 total 40.08 last 97.34)
 - open/close 4602 (time 1786410345.05 total 50.08 last 85.34)
 - open/close 5511 (time 1786410355.05 total 60.09 last 90.89)
 - open/close 6365 (time 1786410365.05 total 70.09 last 85.38)
 - open/close 7225 (time 1786410375.08 total 80.12 last 85.72)
total: 8000 open/close in 88.62 seconds: 90.27 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 123 seconds
lru_size = 4052
3956
ls -la is 11% faster with lru resize enabled
 - unlinked 0 (time 1786410526 ; total 0 ; last 0)
total: 8000 unlinks in 63 seconds: 126.984123 unlinks/second