== sanity test 124b: lru resize (performance test) ================================================================================= 09:57:21 (1786197441)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 2560 (time 1786197454.03 total 10.00 last 255.96)
 - open/close 5242 (time 1786197464.03 total 20.01 last 268.11)
 - open/close 7550 (time 1786197474.03 total 30.01 last 230.71)
total: 8000 open/close in 31.83 seconds: 251.34 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 110 seconds
lru_size = 400
400
 - unlinked 0 (time 1786197591 ; total 0 ; last 0)
total: 8000 unlinks in 16 seconds: 500.000000 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 2447 (time 1786197620.94 total 10.00 last 244.68)
 - open/close 5346 (time 1786197630.94 total 20.00 last 289.82)
 - open/close 7737 (time 1786197640.94 total 30.00 last 239.09)
total: 8000 open/close in 31.06 seconds: 257.54 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 68 seconds
lru_size = 4052
3955
ls -la is 38% faster with lru resize enabled
 - unlinked 0 (time 1786197720 ; total 0 ; last 0)
total: 8000 unlinks in 16 seconds: 500.000000 unlinks/second