From: Daniel Jacobowitz <drow@false.org>
To: Elena Zannoni <ezannoni@redhat.com>
Cc: Andrew Cagney <cagney@gnu.org>,
David Carlton <carlton@kealia.com>,
gdb@sources.redhat.com
Subject: Re: Huge slowdown since 6.0
Date: Sat, 21 Feb 2004 02:18:00 -0000 [thread overview]
Message-ID: <20040221021856.GB19335@nevyn.them.org> (raw)
In-Reply-To: <16438.18096.205403.553354@localhost.redhat.com>
On Fri, Feb 20, 2004 at 12:41:04PM -0500, Elena Zannoni wrote:
> The thing that I am curious about is to see how early into a regular
> debug session we build the symtabs. I.e. I am afraid that any
> reference to any symbol from the command line makes the whole lot
> expand anyway. The answer to this may help answer the question whether
> we really need a two tier symbol table system, or if there is another
> way of solving the same problem. While cleaning up the obstack stuff,
> it became obvious that the intent was for the psymtabs to go away once
> expanded into full symtabs, but this was never implemented.
From the last time I looked at this issue (a while ago, now): when a
symbol is referenced on the command line we generally build symtabs for
the symbol containing it. We do not build all symtabs for its object;
we used to do that for some C++ operations (overload checking maybe?)
and it was extremely noticeable.
--
Daniel Jacobowitz
MontaVista Software Debian GNU/Linux Developer
next prev parent reply other threads:[~2004-02-21 2:18 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-18 21:09 Daniel Jacobowitz
2004-02-18 21:31 ` David Carlton
2004-02-18 22:45 ` Kip Macy
2004-02-19 3:35 ` Daniel Jacobowitz
2004-02-19 5:06 ` Kip Macy
2004-02-19 15:40 ` Daniel Jacobowitz
2004-02-20 5:09 ` Daniel Jacobowitz
2004-02-20 16:42 ` Elena Zannoni
2004-02-20 16:47 ` Daniel Jacobowitz
2004-02-20 17:33 ` Elena Zannoni
2004-02-20 17:01 ` Andrew Cagney
2004-02-20 17:05 ` Daniel Jacobowitz
2004-02-20 17:45 ` Elena Zannoni
2004-02-20 18:07 ` Andrew Cagney
2004-02-20 18:24 ` Daniel Jacobowitz
2004-02-20 18:45 ` Andrew Cagney
2004-02-20 18:48 ` Daniel Jacobowitz
2004-02-21 9:21 ` Eli Zaretskii
2004-02-21 9:04 ` Eli Zaretskii
2004-02-21 2:18 ` Daniel Jacobowitz [this message]
2004-02-20 16:52 ` David Carlton
2004-02-20 16:58 ` Daniel Jacobowitz
2004-02-20 17:00 ` David Carlton
2004-02-20 17:35 ` Elena Zannoni
2004-02-19 1:59 ` Elena Zannoni
2004-02-19 3:35 ` Daniel Jacobowitz
2004-02-19 3:58 ` Daniel Jacobowitz
2004-02-20 19:57 Michael Elizabeth Chastain
2004-02-23 19:22 ` Andrew Cagney
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