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Re: [PATCH] Add support for -fno-sanitize-recover and -fsanitize-undefined-trap-on-error (PR sanitizer/60275)
- From: Marek Polacek <polacek at redhat dot com>
- To: ramrad01 at arm dot com
- Cc: Jakub Jelinek <jakub at redhat dot com>, Richard Biener <rguenther at suse dot de>, Dodji Seketeli <dseketel at redhat dot com>, Konstantin Serebryany <konstantin dot s dot serebryany at gmail dot com>, Tobias Burnus <burnus at net-b dot de>, gcc-patches <gcc-patches at gcc dot gnu dot org>, Richard Sandiford <rdsandiford at googlemail dot com>
- Date: Thu, 15 May 2014 17:08:10 +0200
- Subject: Re: [PATCH] Add support for -fno-sanitize-recover and -fsanitize-undefined-trap-on-error (PR sanitizer/60275)
- Authentication-results: sourceware.org; auth=none
- References: <20140415101156 dot GB1817 at tucnak dot redhat dot com> <87a9ajfi5r dot fsf at talisman dot default> <20140515103357 dot GL10386 at tucnak dot redhat dot com> <CAJA7tRb=HJb3srtHqb3QBp03ujyBWkHmjQWU0ey8F_qN99gzng at mail dot gmail dot com>
On Thu, May 15, 2014 at 11:39:26AM +0100, Ramana Radhakrishnan wrote:
> What's the overhead with bootstrap-ubsan ?
I timed normal bootstrap and bootstrap-ubsan on x86_64, 24 cores,
Intel(R) Xeon(R) CPU X5670 @ 2.93GHz (aka cfarm 20) and the results:
--enable-languages=all
real 35m10.419s
user 204m5.613s
sys 6m15.615s
--enable-languages=all --with-build-config=bootstrap-ubsan
real 71m39.338s
user 347m53.409s
sys 7m44.281s
Marek