Re: x86: 4kstacks default

[Peter Zijlstra]

On Thu, 2008-04-24 at 05:52 -0400, Christoph Hellwig wrote:

> > I wonder if the direct reclaim path should avoid direct reclaim if the stack has only X bytes left.
> > (where the value of X is... well we can figure that one out later)
> 
> Actually direct reclaim should be totally avoided for complex
> filesystems.  It's horrible for the stack and for the filesystem
> writeout policy and ondisk allocation strategies.

That's basically any reclaim, even kswapd will ruin policy and block
allocation smarts.

--
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/