use Math.sqrt(memory) to get container occupied memory according to system memory size, instead of setting fixed size, more reasonable. In addition, '-Xms' not support floating number, so use to_i.

Signed-off-by: Liu Yinsi liuyinsi@163.com --- container/defconfig.rb | 8 ++++++++ 1 file changed, 8 insertions(+)

diff --git a/container/defconfig.rb b/container/defconfig.rb index 05c56db..e3ca89c 100755 --- a/container/defconfig.rb +++ b/container/defconfig.rb @@ -35,3 +35,11 @@ def docker_rm(container)

system "docker stop #{container} && docker rm -f #{container}" end + +def get_available_memory + memory = File.readlines('/proc/meminfo')[0].chomp.split[1].to_f/1048576 + + # set container available memory size, minimum size is 1024m, maximum size is 30720m, + # take the middle value according to the system memory size. + [1024, 30720, Math.sqrt(memory)*1024].sort[1].to_i +end