== sanity test 124b: lru resize (performance test) ================================================================================= 14:32:34 (1772479954)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 2391 (time 1772479968.87 total 10.00 last 239.04)
 - open/close 4764 (time 1772479978.87 total 20.01 last 237.21)
total: 8000 open/close in 29.76 seconds: 268.81 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 66 seconds
lru_size = 400
400
 - unlinked 0 (time 1772480058 ; total 0 ; last 0)
total: 8000 unlinks in 10 seconds: 800.000000 unlinks/second
striped dir -i0 -c2 -H crush /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 4246 (time 1772480080.30 total 10.00 last 424.53)
total: 8000 open/close in 18.34 seconds: 436.16 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 28% faster with lru resize enabled
 - unlinked 0 (time 1772480143 ; total 0 ; last 0)
total: 8000 unlinks in 11 seconds: 727.272705 unlinks/second