[Devel] Re: [RFC][PATCH] Per container statistics

[Paul Menage]

On 5/24/07, Balbir Singh <balbir at linux.vnet.ibm.com> wrote:
>
> I thought about this approach, but did not implement the code this way
> because a system could have thousands of containers and expecting a
> statistics application to open a file descriptor each time for each
> container will turn out to be an expensive operation
>
> overhead =  2 syscalls (open + close) * number of containers * frequency
>             of stats collections

But you can cache the file handles open between stats calls, assuming
you're doing them repeatedly.

Paul