[Ksummit-2008-discuss] DTrace

Arjan van de Ven arjan at linux.intel.com
Fri Jun 27 09:45:58 PDT 2008


Ulrich Drepper wrote:
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> Matthew Wilcox wrote:
>> The ability to trace userspace programs is the key one for the postgres
>> people.
> 
> Userlevel support is coming soon.  As for kernel support: it's supposed
> to work.  I cannot say it better than James: kernel people should start
> using it and report the problems.  It's the only way to get the last
> kinks out of it.  Also, to make it easier, we need tapsets from the
> kernel subsystem maintainer.  You don't want anyone else to write them,
> they'll just be wrong or unusable.  We already have the beginning (see
> /usr/share/systemtap/tapset/*) but that's not enough.  I think once you
> get started you'll learn to like systemtap a lot.
> 

one thing we should do is integrate more of this into the kernel source.
Really.

At least the kernel version specific pieces that are used to compile a tapset
should be part of the kernel source.
And I'd love to see the tapsets too; that way they can be kept uptodate with the kernel source.


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