== sanity test 124b: lru resize (performance test) ================================================================================= 02:50:50 (1788591050)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 924 (time 1788591064.04 total 10.00 last 92.38)
 - open/close 1844 (time 1788591074.04 total 20.00 last 91.99)
 - open/close 2736 (time 1788591084.04 total 30.00 last 89.20)
 - open/close 3554 (time 1788591094.05 total 40.01 last 81.73)
 - open/close 4389 (time 1788591104.10 total 50.07 last 83.05)
 - open/close 5213 (time 1788591114.11 total 60.07 last 82.33)
 - open/close 6022 (time 1788591124.12 total 70.08 last 80.85)
 - open/close 6654 (time 1788591134.15 total 80.11 last 63.02)
 - open/close 7476 (time 1788591144.16 total 90.12 last 82.09)
total: 8000 open/close in 96.81 seconds: 82.63 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 1788591298 ; total 0 ; last 0)
total: 8000 unlinks in 89 seconds: 89.887642 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 883 (time 1788591402.49 total 10.00 last 88.29)
 - open/close 1726 (time 1788591412.49 total 20.00 last 84.29)
 - open/close 2656 (time 1788591422.49 total 30.01 last 92.96)
 - open/close 3529 (time 1788591432.51 total 40.02 last 87.19)
 - open/close 4379 (time 1788591442.51 total 50.03 last 84.94)
 - open/close 5275 (time 1788591452.52 total 60.03 last 89.56)
 - open/close 6043 (time 1788591462.52 total 70.03 last 76.77)
 - open/close 6792 (time 1788591472.53 total 80.04 last 74.86)
 - open/close 7606 (time 1788591482.53 total 90.05 last 81.34)
total: 8000 open/close in 94.38 seconds: 84.76 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 75 seconds
lru_size = 4052
3955
ls -la is 46% faster with lru resize enabled
 - unlinked 0 (time 1788591579 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second