== sanity test 124b: lru resize (performance test) ================================================================================= 07:32:41 (1777030361)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 2750 (time 1777030375.00 total 10.00 last 274.96)
 - open/close 4565 (time 1777030385.01 total 20.01 last 181.38)
 - open/close 6120 (time 1777030395.01 total 30.01 last 155.49)
 - open/close 7937 (time 1777030405.01 total 40.01 last 181.63)
total: 8000 open/close in 40.35 seconds: 198.26 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 76 seconds
lru_size = 400
400
 - unlinked 0 (time 1777030485 ; total 0 ; last 0)
total: 8000 unlinks in 13 seconds: 615.384644 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 2615 (time 1777030511.46 total 10.00 last 261.45)
 - open/close 6148 (time 1777030521.46 total 20.00 last 353.23)
total: 8000 open/close in 25.31 seconds: 316.09 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 46 seconds
lru_size = 4052
3955
ls -la is 39% faster with lru resize enabled
 - unlinked 0 (time 1777030580 ; total 0 ; last 0)
total: 8000 unlinks in 14 seconds: 571.428589 unlinks/second