[Ksummit-2008-discuss] DTrace

Ulrich Drepper drepper at redhat.com
Fri Jun 27 20:38:39 PDT 2008


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Theodore Tso wrote:
> So to the extent that SystemTap can't do this thing that DTrace does
> quite well, it really can't be marketed as a replacement or equivalent
> of DTrace; it simply isn't right now.

That's nonsense.  It is exactly the goal.  The technology is very much
available for this.  The problem is that not enough people with
knowledge of the kernel has contributed their knowledge.

Enablement for dtrace also required the kernel developers to contribute.
 They had to decide where the probe point are and which values are
needed.  If we could get that level of collaboration we could quickly
get to the point where the kernel side of the probing is at least as
well supported as dtrace support for Solaris.

- --
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖
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