Re: [RFC PATCH] fuse: support splice() reading from fuse device

From: Matthew Wilcox
Date: Thu May 20 2010 - 16:11:28 EST

On Thu, May 20, 2010 at 10:07:23PM +0200, Miklos Szeredi wrote:
> > It says nothing at all, in short. You need to have a real source, and a
> > real destination. Not some empty filesystem and /dev/null destination.
> Sure, I will do that. It's just a lot harder to measure the effects
> on hardware I have access to, where the CPU speed is just damn too
> large compared to I/O speed.

Try running a CPU burner on all the cores. Something that's low priority,
so it'll be preempted by FUSE, and doesn't consume much cache.

Matthew Wilcox Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours. We can't possibly take such
a retrograde step."
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