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Re: [Libunwind-devel] libunwind x86-64 optimisations?
From: |
Lassi Tuura |
Subject: |
Re: [Libunwind-devel] libunwind x86-64 optimisations? |
Date: |
Fri, 28 Aug 2009 09:48:37 +0200 |
Hi,
On 28 Aug 2009, at 02:25, Arun Sharma wrote:
On Mon, Jul 6, 2009 at 4:24 AM, Lassi Tuura <address@hidden> wrote:
1) C++ compatibility clean-up
http://cmssw.cvs.cern.ch/cgi-bin/cmssw.cgi/COMP/CMSDIST/libunwind-
cleanup.patch?revision=1.1&view=markup
I've applied this patch.
Thanks!
2) Various performance optimisations
http://cmssw.cvs.cern.ch/cgi-bin/cmssw.cgi/COMP/CMSDIST/libunwind-
optimise.patch?revision=1.5&view=markup
Were you able to test with libatomic-ops installed?
For the deadlock problems, one solution is to implement your own
dl_iterate_phdr which is lock free and async signal safe. This
might require minor changes to your libc.
Not yet, thanks for the advice. I was away on holiday for some time,
and will be picking up all this again. I am afraid touching libc is
beyond what we can do...
Lassi