Re: [RFC][PATCH] Per container statistics

From: Paul Menage
Date: Thu May 24 2007 - 12:13:06 EST


On 5/24/07, Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx> 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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/