== sanity test 124b: lru resize (performance test) ================================================================================= 14:53:12 (1788807192)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 562 (time 1788807208.11 total 10.01 last 56.17)
 - open/close 1280 (time 1788807218.13 total 20.02 last 71.71)
 - open/close 2089 (time 1788807228.14 total 30.04 last 80.77)
 - open/close 2894 (time 1788807238.15 total 40.04 last 80.47)
 - open/close 3954 (time 1788807248.15 total 50.05 last 105.94)
 - open/close 4873 (time 1788807258.17 total 60.06 last 91.78)
 - open/close 5817 (time 1788807268.17 total 70.06 last 94.36)
 - open/close 6832 (time 1788807278.17 total 80.07 last 101.46)
 - open/close 7762 (time 1788807288.18 total 90.07 last 92.95)
total: 8000 open/close in 92.32 seconds: 86.65 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 121 seconds
lru_size = 400
400
 - unlinked 0 (time 1788807419 ; total 0 ; last 0)
total: 8000 unlinks in 73 seconds: 109.589043 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1028 (time 1788807506.77 total 10.00 last 102.80)
 - open/close 2208 (time 1788807516.78 total 20.00 last 117.97)
 - open/close 3258 (time 1788807526.79 total 30.02 last 104.83)
 - open/close 4380 (time 1788807536.79 total 40.02 last 112.20)
 - open/close 5442 (time 1788807546.80 total 50.02 last 106.16)
 - open/close 6551 (time 1788807556.80 total 60.03 last 110.87)
 - open/close 7670 (time 1788807566.80 total 70.03 last 111.86)
total: 8000 open/close in 73.00 seconds: 109.60 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 54 seconds
lru_size = 4052
3955
ls -la is 55% faster with lru resize enabled
 - unlinked 0 (time 1788807636 ; total 0 ; last 0)
total: 8000 unlinks in 44 seconds: 181.818176 unlinks/second