== sanity test 124b: lru resize (performance test) ================================================================================= 23:40:45 (1772685645)
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 4365 (time 1772685658.74 total 10.00 last 436.41)
total: 8000 open/close in 19.86 seconds: 402.87 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 84 seconds
lru_size = 400
400
 - unlinked 0 (time 1772685756 ; total 0 ; last 0)
total: 8000 unlinks in 19 seconds: 421.052643 unlinks/second
striped dir -i0 -c2 -H crush2 /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 2614 (time 1772685787.15 total 10.00 last 261.38)
 - open/close 4934 (time 1772685797.16 total 20.00 last 231.93)
 - open/close 7169 (time 1772685807.16 total 30.01 last 223.47)
total: 8000 open/close in 33.12 seconds: 241.57 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 61 seconds
lru_size = 4052
3955
ls -la is 27% faster with lru resize enabled
 - unlinked 0 (time 1772685881 ; total 0 ; last 0)
total: 8000 unlinks in 14 seconds: 571.428589 unlinks/second