== sanity test 124b: lru resize (performance test) ================================================================================= 14:28:06 (1733167686)
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 2696 (time 1733167698.13 total 10.00 last 269.56)
 - open/close 5307 (time 1733167708.13 total 20.00 last 261.02)
 - open/close 7989 (time 1733167718.14 total 30.01 last 268.12)
total: 8000 open/close in 30.05 seconds: 266.23 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 52 seconds
lru_size = 400
400
 - unlinked 0 (time 1733167773 ; total 0 ; last 0)
total: 8000 unlinks in 16 seconds: 500.000000 unlinks/second
striped dir -i0 -c2 -H crush /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 3901 (time 1733167800.81 total 10.00 last 390.05)
 - open/close 7837 (time 1733167810.81 total 20.00 last 393.52)
total: 8000 open/close in 20.68 seconds: 386.90 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 10 seconds
lru_size = 4052
3955
ls -la is 80% faster with lru resize enabled
 - unlinked 0 (time 1733167827 ; total 0 ; last 0)
total: 8000 unlinks in 13 seconds: 615.384644 unlinks/second