On 05/15/2014 05:08 PM, Marek Polacek wrote:
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
And don't underestimate the *usefulness* of this - if you don't have the
resources to do a ubsan bootstrap, download mine from last night
(x86_64-linux-gnu): http://moene.org/~toon/gcc-tests.log.gz
[ I hope there is a way to discard color codings when writing error
messages to a file, ugh ]
Kind regards,
--
Toon Moene - e-mail: t...@moene.org - phone: +31 346 214290
Saturnushof 14, 3738 XG Maartensdijk, The Netherlands
At home: http://moene.org/~toon/; weather: http://moene.org/~hirlam/
Progress of GNU Fortran: http://gcc.gnu.org/wiki/GFortran#news
