Re: hackbench [pthread mode] regression with 2.6.29-rc3

From: Bryon Roche
Date: Mon Feb 02 2009 - 12:49:44 EST


On Mon, 02 Feb 2009 09:53:38 +0100, Peter Zijlstra wrote:

> On Mon, 2009-02-02 at 09:12 +0800, Zhang, Yanmin wrote:
>
> I would rather go back to the old model where we iterate all threads,
> and find a way to not make programs with too many threads for their own
> good lock up the kernel, but instead get poor service.

Now, there's an interesting question, what is the definition of too many
threads for a program's own good? When evaluating this, please assume
that you
do actually have enough RAM to keep thread stacks/other userspace
threading
resources in-core.

/B

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