== sanity test 124b: lru resize (performance test) ================================================================================= 11:35:35 (1788536135)
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 900 (time 1788536150.32 total 10.00 last 89.98)
 - open/close 1750 (time 1788536160.32 total 20.00 last 84.99)
 - open/close 2732 (time 1788536170.33 total 30.01 last 98.17)
 - open/close 3617 (time 1788536180.34 total 40.02 last 88.37)
 - open/close 4617 (time 1788536190.35 total 50.03 last 99.89)
 - open/close 5440 (time 1788536200.36 total 60.04 last 82.25)
 - open/close 6334 (time 1788536210.36 total 70.04 last 89.34)
 - open/close 6973 (time 1788536220.38 total 80.06 last 63.80)
 - open/close 7762 (time 1788536230.39 total 90.07 last 78.83)
total: 8000 open/close in 92.69 seconds: 86.31 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 152 seconds
lru_size = 400
400
 - unlinked 0 (time 1788536395 ; total 0 ; last 0)
total: 8000 unlinks in 101 seconds: 79.207924 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 896 (time 1788536511.52 total 10.01 last 89.55)
 - open/close 1852 (time 1788536521.52 total 20.01 last 95.55)
 - open/close 2762 (time 1788536531.53 total 30.02 last 90.95)
 - open/close 3598 (time 1788536541.53 total 40.02 last 83.55)
 - open/close 4600 (time 1788536551.54 total 50.03 last 100.15)
 - open/close 5409 (time 1788536561.55 total 60.03 last 80.86)
 - open/close 6366 (time 1788536571.55 total 70.04 last 95.67)
 - open/close 7403 (time 1788536581.56 total 80.04 last 103.61)
total: 8000 open/close in 86.22 seconds: 92.79 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 93 seconds
lru_size = 4052
3955
ls -la is 38% faster with lru resize enabled
 - unlinked 0 (time 1788536699 ; total 0 ; last 0)
total: 8000 unlinks in 61 seconds: 131.147537 unlinks/second