From: "Ulrich Weigand" <uweigand@de.ibm.com>
To: tromey@redhat.com (Tom Tromey)
Cc: markus@hyperion-imrt.org (Markus Alber),
msnyder@vmware.com (Michael Snyder),
gdb@sourceware.org, pedro@codesourcery.com
Subject: Re: performance of multithreading gets gradually worse under gdb
Date: Fri, 04 Feb 2011 13:49:00 -0000 [thread overview]
Message-ID: <201102041349.p14DnCeY025641@d06av02.portsmouth.uk.ibm.com> (raw)
In-Reply-To: <m3oc6sdbc3.fsf@fleche.redhat.com> from "Tom Tromey" at Feb 03, 2011 03:04:12 PM
Tom Tromey wrote:
> >>>>> "Ulrich" == Ulrich Weigand <uweigand@de.ibm.com> writes:
> Ulrich> (Actually, now that every thread always has a thread_info, the
> Ulrich> best thing would probably be anyway to hang each thread's regcaches
> Ulrich> off the thread_info, and do away with the global list completely.)
>
> I suppose in this case, invalidating could simply clear a regcache
> instead of deleting (and subsequently recreating) it. Is that correct?
Yes, I think so. Note that we still need to (potentially) keep more than
one regcache per thread for multi-arch support. We may also need to reset
the regcache's address space before reusing it ...
Bye,
Ulrich
--
Dr. Ulrich Weigand
GNU Toolchain for Linux on System z and Cell BE
Ulrich.Weigand@de.ibm.com
next prev parent reply other threads:[~2011-02-04 13:49 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-02 20:16 Markus Alber
2011-02-02 20:28 ` Michael Snyder
[not found] ` <76bccf1875854ebc69b6a892fb84a976@hyperion-imrt.org>
2011-02-02 21:43 ` Michael Snyder
2011-02-03 7:03 ` Markus Alber
2011-02-03 20:26 ` Michael Snyder
2011-02-03 20:52 ` Markus Alber
2011-02-03 20:57 ` Tom Tromey
2011-02-03 21:00 ` Tom Tromey
2011-02-03 21:40 ` Ulrich Weigand
2011-02-03 22:04 ` Tom Tromey
2011-02-04 13:49 ` Ulrich Weigand [this message]
2011-02-04 14:55 ` Pedro Alves
2011-02-04 15:13 ` Ulrich Weigand
2011-02-04 15:26 ` Tom Tromey
2011-02-04 15:56 ` Pedro Alves
[not found] ` <201102041555.52179.pedro__21913.9744448059$1296834976$gmane$org@codesourcery.com>
2011-02-04 17:02 ` Tom Tromey
2011-02-05 9:34 ` Markus Alber
2011-02-07 14:05 ` Markus Alber
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