From: Jan Kratochvil <jan.kratochvil@redhat.com>
To: Michael Eager <eager@eagerm.com>
Cc: "gdb-patches@sourceware.org" <gdb-patches@sourceware.org>
Subject: Re: SEGV in dwarf2read.c -- gdb-7.2
Date: Thu, 03 Nov 2011 17:25:00 -0000 [thread overview]
Message-ID: <20111103172450.GA23503@host1.jankratochvil.net> (raw)
In-Reply-To: <4EB2C9DD.4030305@eagerm.com>
On Thu, 03 Nov 2011 18:05:33 +0100, Michael Eager wrote:
> Can't help that. Bugs are found on the tools in use, not necessarily
> the latest release.
In such case I have to unfortunately say the bug is probably already fixed,
see the other mail.
> > I guess for performance reasons, the CU header read-in vs. load_full_comp_unit
> > is a big difference. There are already some PRs (such as 12828 (a)) where GDB
> > needlessly expands too many CUs "locking itself" by inacceptable performance.
>
> It seems that this would cause the CU header to be read many times, when
> it would otherwise use the cache.
It still may be more effective this way, it is difficult to decide without
benchmarking specific cases.
Thanks,
Jan
prev parent reply other threads:[~2011-11-03 17:25 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-03 16:12 Michael Eager
2011-11-03 16:20 ` Jan Kratochvil
2011-11-03 16:43 ` Tom Tromey
2011-11-03 16:55 ` Jan Kratochvil
2011-11-03 17:13 ` Michael Eager
2011-11-03 17:22 ` Jan Kratochvil
2011-11-03 17:37 ` Michael Eager
2011-11-03 17:05 ` Michael Eager
2011-11-03 17:25 ` Jan Kratochvil [this message]
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