Re: [patch v6 21/21] record-btrace: add (reverse-)stepping support

Jan Kratochvil
2013-11-26T12:39:24Z

On Wed, 06 Nov 2013 14:48:29 +0100, Metzger, Markus T wrote:
> > I would see it worth a comment even in
> > (gdb) help record btrace
> > Start branch trace recording.
>
> I don't think that this is necessary or helpful. If we start documenting the
> trace size here, we should also say that trace is collected per thread with
> no correlation between threads and that tracing induces a run-time overhead
> and that it may also affect thread interleaving which may cause bug symptoms
> to disappear, and ....

Tom for example recently added a TODO item to fix it all in general:
https://sourceware.org/gdb/wiki/ProjectIdeas?action=diff&rev1=57&rev2=58

More text is better than less text. But I do not insist on that.

Thanks,
Jan