== sanity test 124b: lru resize (performance test) ================================================================================= 06:55:37 (1787309737)
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 828 (time 1787309752.48 total 10.00 last 82.77)
 - open/close 1572 (time 1787309762.48 total 20.01 last 74.38)
 - open/close 2301 (time 1787309772.50 total 30.02 last 72.79)
 - open/close 3097 (time 1787309782.51 total 40.03 last 79.52)
 - open/close 3835 (time 1787309792.52 total 50.04 last 73.71)
 - open/close 4625 (time 1787309802.54 total 60.06 last 78.87)
 - open/close 5361 (time 1787309812.54 total 70.06 last 73.58)
 - open/close 6199 (time 1787309822.55 total 80.07 last 83.71)
 - open/close 7061 (time 1787309832.56 total 90.08 last 86.13)
 - open/close 7807 (time 1787309842.56 total 100.08 last 74.58)
total: 8000 open/close in 102.17 seconds: 78.30 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 150 seconds
lru_size = 400
400
 - unlinked 0 (time 1787310005 ; total 0 ; last 0)
total: 8000 unlinks in 108 seconds: 74.074074 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 755 (time 1787310128.90 total 10.01 last 75.44)
 - open/close 1560 (time 1787310138.91 total 20.01 last 80.49)
 - open/close 2395 (time 1787310148.91 total 30.02 last 83.43)
 - open/close 3094 (time 1787310158.92 total 40.03 last 69.82)
 - open/close 3968 (time 1787310168.93 total 50.04 last 87.33)
 - open/close 4683 (time 1787310178.93 total 60.04 last 71.48)
 - open/close 5447 (time 1787310188.94 total 70.04 last 76.40)
 - open/close 6123 (time 1787310198.94 total 80.04 last 67.59)
 - open/close 6889 (time 1787310208.94 total 90.04 last 76.58)
 - open/close 7710 (time 1787310218.95 total 100.05 last 82.04)
total: 8000 open/close in 103.95 seconds: 76.96 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 72 seconds
lru_size = 4052
3955
ls -la is 52% faster with lru resize enabled
 - unlinked 0 (time 1787310312 ; total 0 ; last 0)
total: 8000 unlinks in 69 seconds: 115.942032 unlinks/second