== sanity test 124b: lru resize (performance test) ================================================================================= 02:24:26 (1769066666)
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 2163 (time 1769066679.58 total 10.00 last 216.20)
 - open/close 4410 (time 1769066689.59 total 20.01 last 224.61)
 - open/close 6527 (time 1769066699.59 total 30.01 last 211.63)
total: 8000 open/close in 36.88 seconds: 216.93 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 103 seconds
lru_size = 400
400
 - unlinked 0 (time 1769066813 ; total 0 ; last 0)
total: 8000 unlinks in 25 seconds: 320.000000 unlinks/second
striped dir -i0 -c2 -H crush2 /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 679 (time 1769066852.83 total 10.01 last 67.87)
 - open/close 1621 (time 1769066862.83 total 20.01 last 94.20)
 - open/close 2687 (time 1769066872.84 total 30.01 last 106.58)
 - open/close 3934 (time 1769066882.84 total 40.01 last 124.63)
 - open/close 5212 (time 1769066892.85 total 50.02 last 127.69)
 - open/close 6832 (time 1769066902.85 total 60.03 last 161.95)
total: 8000 open/close in 68.08 seconds: 117.51 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 45 seconds
lru_size = 4052
3955
ls -la is 56% faster with lru resize enabled
 - unlinked 0 (time 1769066965 ; total 0 ; last 0)
total: 8000 unlinks in 29 seconds: 275.862061 unlinks/second