== sanity test 124b: lru resize (performance test) ================================================================================= 05:16:09 (1771409769)
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 3843 (time 1771409782.70 total 10.00 last 384.23)
 - open/close 7915 (time 1771409792.70 total 20.00 last 407.17)
total: 8000 open/close in 20.18 seconds: 396.40 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 68 seconds
lru_size = 400
400
 - unlinked 0 (time 1771409864 ; total 0 ; last 0)
total: 8000 unlinks in 13 seconds: 615.384644 unlinks/second
striped dir -i0 -c2 -H crush /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 3578 (time 1771409890.47 total 10.00 last 357.77)
 - open/close 6851 (time 1771409900.47 total 20.00 last 327.24)
total: 8000 open/close in 23.13 seconds: 345.90 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 47 seconds
lru_size = 4052
3955
ls -la is 30% faster with lru resize enabled
 - unlinked 0 (time 1771409958 ; total 0 ; last 0)
total: 8000 unlinks in 11 seconds: 727.272705 unlinks/second