== sanity test 124b: lru resize (performance test) ================================================================================= 22:30:56 (1783650656)
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 694 (time 1783650673.02 total 10.01 last 69.34)
 - open/close 1562 (time 1783650683.03 total 20.01 last 86.75)
 - open/close 2309 (time 1783650693.04 total 30.02 last 74.65)
 - open/close 3285 (time 1783650703.04 total 40.03 last 97.56)
 - open/close 4236 (time 1783650713.05 total 50.03 last 95.03)
 - open/close 5224 (time 1783650723.06 total 60.05 last 98.67)
 - open/close 6354 (time 1783650733.06 total 70.05 last 112.97)
 - open/close 7397 (time 1783650743.08 total 80.07 last 104.09)
total: 8000 open/close in 86.61 seconds: 92.37 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 128 seconds
lru_size = 400
400
 - unlinked 0 (time 1783650884 ; total 0 ; last 0)
total: 8000 unlinks in 67 seconds: 119.402985 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 3259 (time 1783650963.22 total 10.00 last 325.88)
 - open/close 7524 (time 1783650973.22 total 20.00 last 426.33)
total: 8000 open/close in 21.17 seconds: 377.92 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 45 seconds
lru_size = 4052
3955
ls -la is 64% faster with lru resize enabled
 - unlinked 0 (time 1783651027 ; total 0 ; last 0)
total: 8000 unlinks in 10 seconds: 800.000000 unlinks/second