== sanity test 124b: lru resize (performance test) ================================================================================= 12:58:25 (1788886705)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 3195 (time 1788886719.70 total 10.00 last 319.44)
 - open/close 6314 (time 1788886729.70 total 20.00 last 311.87)
total: 8000 open/close in 25.08 seconds: 319.03 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 62 seconds
lru_size = 400
400
 - unlinked 0 (time 1788886801 ; total 0 ; last 0)
total: 8000 unlinks in 12 seconds: 666.666687 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 3246 (time 1788886825.54 total 10.00 last 324.55)
 - open/close 7398 (time 1788886835.55 total 20.00 last 415.17)
total: 8000 open/close in 21.34 seconds: 374.80 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 40 seconds
lru_size = 4052
3955
ls -la is 35% faster with lru resize enabled
 - unlinked 0 (time 1788886884 ; total 0 ; last 0)
total: 8000 unlinks in 11 seconds: 727.272705 unlinks/second