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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