| Re: [RFC][PATCH] Per container statistics [message #13320 is a reply to message #13316] |
Thu, 24 May 2007 16:12  |
Paul Menage
Messages: 642
Registered: September 2006
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Senior Member |
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On 5/24/07, Balbir Singh <balbir@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
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