From: Tom Tromey <tromey@redhat.com>
To: ppluzhnikov@google.com (Paul Pluzhnikov)
Cc: gdb-patches@sourceware.org
Subject: Re: [rfc][patch] Eliminate quadratic slow-down on number of solibs.
Date: Tue, 21 Apr 2009 01:06:00 -0000 [thread overview]
Message-ID: <m3y6tu24ty.fsf@fleche.redhat.com> (raw)
In-Reply-To: <20090420232900.2456B19C4F6@localhost> (Paul Pluzhnikov's message of "Mon\, 20 Apr 2009 16\:29\:00 -0700 \(PDT\)")
>>>>> "Paul" == Paul Pluzhnikov <ppluzhnikov@google.com> writes:
Paul> We have a test case which uses ~2800 shared libraries.
Awesome.
Paul> To address the repeated scanning for objective-c, I propose adding
Paul> n_objc_syms to the struct objstats, initializing that field to ~0,
Paul> and counting them in find_methods the first time we encounter a given
Paul> objfile. If we see that objfile again, and n_objc_syms == 0, find_methods
Paul> could return immediately.
This seems reasonable.
I wonder whether it should use the generic per-objfile data storage
stuff, rather than sticking ObjC-specific stuff directly into the
objfile.
Paul> Comments?
This look reasonable enough to me, though I'd prefer someone more
familiar with breakpoints take a look.
Paul> /* Re-set all breakpoints after symbols have been re-loaded. */
Paul> void
Paul> -breakpoint_re_set (void)
Paul> +breakpoint_re_set_objfile (struct objfile *objfile)
The new argument needs a description in the function header.
Paul> +void
Paul> +breakpoint_re_set (void)
This needs a function header; I think you can just copy the old one.
Tom
next prev parent reply other threads:[~2009-04-21 1:06 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-20 23:29 Paul Pluzhnikov
2009-04-21 1:06 ` Tom Tromey [this message]
2009-04-29 21:12 ` Paul Pluzhnikov
2009-05-12 8:48 ` Joel Brobecker
2009-05-12 21:21 ` Paul Pluzhnikov
2009-05-13 9:39 ` Joel Brobecker
2009-06-22 17:10 ` Ulrich Weigand
2009-06-22 18:56 ` Paul Pluzhnikov
2009-06-22 19:30 ` Ulrich Weigand
2009-06-22 19:42 ` Paul Pluzhnikov
2009-06-22 20:06 ` Ulrich Weigand
2009-06-22 22:04 ` Paul Pluzhnikov
2009-06-23 0:43 ` Ulrich Weigand
2009-06-23 1:33 ` Paul Pluzhnikov
2009-06-23 13:32 ` Ulrich Weigand
2009-06-22 20:41 ` Doug Evans
2009-06-22 20:48 ` Michael Snyder
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