== sanity test 124b: lru resize (performance test) ================================================================================= 07:42:38 (1789126958)
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 843 (time 1789126973.45 total 10.00 last 84.29)
 - open/close 1712 (time 1789126983.46 total 20.01 last 86.80)
 - open/close 2601 (time 1789126993.46 total 30.02 last 88.87)
 - open/close 3545 (time 1789127003.47 total 40.03 last 94.29)
 - open/close 4416 (time 1789127013.48 total 50.04 last 87.03)
 - open/close 5342 (time 1789127023.48 total 60.04 last 92.60)
 - open/close 6256 (time 1789127033.49 total 70.04 last 91.35)
 - open/close 7150 (time 1789127043.49 total 80.05 last 89.36)
total: 8000 open/close in 89.95 seconds: 88.93 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 1789127205 ; total 0 ; last 0)
total: 8000 unlinks in 99 seconds: 80.808083 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 909 (time 1789127319.34 total 10.00 last 90.86)
 - open/close 1785 (time 1789127329.34 total 20.01 last 87.55)
 - open/close 2689 (time 1789127339.35 total 30.01 last 90.37)
 - open/close 3675 (time 1789127349.35 total 40.02 last 98.52)
 - open/close 4522 (time 1789127359.35 total 50.02 last 84.69)
 - open/close 5455 (time 1789127369.37 total 60.04 last 93.16)
 - open/close 6404 (time 1789127379.37 total 70.04 last 94.89)
 - open/close 7284 (time 1789127389.38 total 80.05 last 87.92)
total: 8000 open/close in 88.53 seconds: 90.36 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 83 seconds
lru_size = 4052
3955
ls -la is 41% faster with lru resize enabled
 - unlinked 0 (time 1789127500 ; total 0 ; last 0)
total: 8000 unlinks in 52 seconds: 153.846161 unlinks/second