|To:||Robin Humble <rjh@xxxxxxxxxxxxxxxx>|
|Subject:||Re: fc3 and stacks|
|From:||Eric Sandeen <sandeen@xxxxxxx>|
|Date:||Fri, 11 Mar 2005 11:29:45 -0600|
|User-agent:||Mozilla Thunderbird 1.0 (X11/20041206)|
Robin Humble wrote:
There are still a few large stack users in xfs even when it's used by itself - one that comes to mind is code that runs when you use xfs_fsr (hm, I really must check in my fix for that....) And figuring out callchain depth is tricky, so hard to say how these things will all add up.
I guess I would suggest that you just test it out on one non-critical box, with a "normal" workload for you, and see how it fares. It's tight, but in many cases it might be just fine.
If so, then it's not hard to recompile the fc3 kernel (or a stock kernel) for 8k stacks, just we're not too sure how risky the default fc3 setup is.
We're also thinking of running RHEL AS4 instead of fc3 (they are very similar), but that definitely needs a recompile as XFS isn't included in the default AS4 kernel :-/
Yep... that's something I've been meaning to look into as well - although the 4k stack issue remains.
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