== sanity test 124b: lru resize (performance test) ================================================================================= 07:11:37 (1787397097)
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 854 (time 1787397113.22 total 10.01 last 85.34)
 - open/close 1720 (time 1787397123.23 total 20.02 last 86.52)
 - open/close 2585 (time 1787397133.24 total 30.02 last 86.46)
 - open/close 3432 (time 1787397143.24 total 40.03 last 84.65)
 - open/close 4466 (time 1787397153.25 total 50.03 last 103.35)
 - open/close 5411 (time 1787397163.27 total 60.06 last 94.24)
 - open/close 6193 (time 1787397173.28 total 70.06 last 78.19)
 - open/close 7050 (time 1787397183.28 total 80.06 last 85.68)
 - open/close 7864 (time 1787397193.28 total 90.07 last 81.35)
total: 8000 open/close in 91.68 seconds: 87.26 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 159 seconds
lru_size = 400
400
 - unlinked 0 (time 1787397365 ; total 0 ; last 0)
total: 8000 unlinks in 98 seconds: 81.632652 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 928 (time 1787397479.20 total 10.00 last 92.80)
 - open/close 1956 (time 1787397489.20 total 20.00 last 102.77)
 - open/close 3002 (time 1787397499.21 total 30.01 last 104.51)
 - open/close 3974 (time 1787397509.21 total 40.01 last 97.19)
 - open/close 4832 (time 1787397519.22 total 50.02 last 85.71)
 - open/close 5727 (time 1787397529.23 total 60.03 last 89.44)
 - open/close 6649 (time 1787397539.23 total 70.04 last 92.14)
 - open/close 7639 (time 1787397549.24 total 80.04 last 98.97)
total: 8000 open/close in 83.34 seconds: 95.99 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 96 seconds
lru_size = 4052
3955
ls -la is 39% faster with lru resize enabled
 - unlinked 0 (time 1787397669 ; total 0 ; last 0)
total: 8000 unlinks in 57 seconds: 140.350876 unlinks/second