Re: relayfs as infrastructure, ltt, systemtap, diskstat

[Christoph Hellwig]

On Fri, Jul 22, 2005 at 10:33:21PM +0200, bert hubert wrote:
> On Fri, Jul 22, 2005 at 01:01:32PM -0700, Paul Jackson wrote:
> > Another vote in favor of relayfs here ...
> 
> At OLS the 'SystemTAP' idea was presented, which has been partially
> implemented already, and it builds on relayfs as well. It dovetails nicely
> with kprobes.

And what exactly is this systemtap thing supposed to be?  And why the
heck do they announce it at some conference and we should suddenly care
about it?

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relayfs as infrastructure, ltt, systemtap, diskstat

[bert hubert]

On Fri, Jul 22, 2005 at 01:01:32PM -0700, Paul Jackson wrote:
> Another vote in favor of relayfs here ...

At OLS the 'SystemTAP' idea was presented, which has been partially
implemented already, and it builds on relayfs as well. It dovetails nicely
with kprobes.

So it appears there is a sizeable amount of code which is building on
relayfs, iow, it is getting to be infrastructure.

I'm redoing diskstat to work with k/jprobes so it won't require a kernel
patch anymore, but it will still rely on relayfs.

So it would be tremendously helpful if relayfs would be part of the
mainline. I'll be banging out some HOWTO style documentation soonish.

Bert.

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