== sanity test 124b: lru resize (performance test) ================================================================================= 22:41:26 (1777430486)
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 2309 (time 1777430498.35 total 10.00 last 230.81)
 - open/close 4545 (time 1777430508.35 total 20.01 last 223.52)
 - open/close 6864 (time 1777430518.35 total 30.01 last 231.90)
total: 8000 open/close in 35.13 seconds: 227.74 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 95 seconds
lru_size = 400
400
 - unlinked 0 (time 1777430623 ; total 0 ; last 0)
total: 8000 unlinks in 31 seconds: 258.064514 unlinks/second
striped dir -i0 -c2 -H crush2 /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 2353 (time 1777430666.46 total 10.00 last 235.22)
 - open/close 4630 (time 1777430676.47 total 20.01 last 227.65)
 - open/close 6881 (time 1777430686.47 total 30.01 last 225.08)
total: 8000 open/close in 34.21 seconds: 233.82 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 64 seconds
lru_size = 4052
3955
ls -la is 32% faster with lru resize enabled
 - unlinked 0 (time 1777430764 ; total 0 ; last 0)
total: 8000 unlinks in 20 seconds: 400.000000 unlinks/second