== sanity test 124b: lru resize (performance test) ================================================================================= 08:49:44 (1746794984)
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 2508 (time 1746794995.91 total 10.00 last 250.71)
 - open/close 4875 (time 1746795005.92 total 20.01 last 236.58)
 - open/close 7233 (time 1746795015.92 total 30.01 last 235.78)
total: 8000 open/close in 33.40 seconds: 239.55 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 50 seconds
lru_size = 400
400
 - unlinked 0 (time 1746795073 ; total 0 ; last 0)
total: 8000 unlinks in 18 seconds: 444.444458 unlinks/second
striped dir -i0 -c2 -H crush /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 2609 (time 1746795102.09 total 10.00 last 260.88)
 - open/close 5003 (time 1746795112.10 total 20.00 last 239.33)
 - open/close 7402 (time 1746795122.10 total 30.01 last 239.86)
total: 8000 open/close in 32.50 seconds: 246.13 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 9 seconds
lru_size = 4052
3955
ls -la is 82% faster with lru resize enabled
 - unlinked 0 (time 1746795140 ; total 0 ; last 0)
total: 8000 unlinks in 18 seconds: 444.444458 unlinks/second