On Mon, Jan 20, 2014 at 03:17:43PM +0000, Gordan Bobic wrote: > On 2014-01-20 14:51, Richard W.M. Jones wrote: > >I never said that fixups were free, obviously going in and out of the > >kernel to emulate an instruction is going to take some time. > > You seemed to imply it above by saying that penalty on recent > x86 is non-existant on Sandy Bridge and insignificant on > slightly less recent x86 CPUs. I failing to see what Intel Sandybridge has to do with the ARM Cortex-A15 chips in Chromebooks, but anyway ... > >The question is whether it noticably affects any code. > > It certainly seems to affect the nss build process quite > badly, specifically the test stage (which actually fails > some tests on ARM, concerningly). Whether it affects the > runtime I don't know, I don't think I use it - the only > crypto related packages I use are OpenSSH and mod_ssl, > both of which, AFAIK, link against OpenSSL rather than nss. OK, sounds like nss needs to be fixed. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Fedora Windows cross-compiler. Compile Windows programs, test, and build Windows installers. Over 100 libraries supported. http://fedoraproject.org/wiki/MinGW _______________________________________________ arm mailing list arm@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/arm
