== sanity test 124b: lru resize (performance test) ================================================================================= 00:06:00 (1735103160)
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 4566 (time 1735103172.37 total 10.00 last 456.57)
 - open/close 7185 (time 1735103182.38 total 20.00 last 261.84)
total: 8000 open/close in 22.93 seconds: 348.92 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 42 seconds
lru_size = 400
400
 - unlinked 0 (time 1735103229 ; total 0 ; last 0)
total: 8000 unlinks in 7 seconds: 1142.857178 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 5998 (time 1735103247.71 total 10.00 last 599.76)
total: 8000 open/close in 13.86 seconds: 577.08 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 12 seconds
lru_size = 4006
4001
ls -la is 71% faster with lru resize enabled
 - unlinked 0 (time 1735103267 ; total 0 ; last 0)
total: 8000 unlinks in 9 seconds: 888.888916 unlinks/second