On Wed, Apr 20, 2016 at 5:02 AM, Matthew Miller <mat...@fedoraproject.org> wrote: > On Wed, Apr 20, 2016 at 12:42:26AM +0200, František Zatloukal wrote: >> I think i'll be interesting to look into it and find out if Fedora can't >> tweak compiler settings (eg use LTO for critical things like Mesa, Kernel, >> ...). I think it could be interesting fo Fedora users to have this enabled >> if there are not any disadvantages other than compile time, compile memory >> usage and so on. >> >> What do you think? > > There might be some things to look at. But in general, Clear Linux can > do that because they only care about Intel CPUs and, I think, only the > newer versions. We want to also run well on AMD and (probably) older > generations of hardware. So, for example, we use '-mtune=generic'.
Specifically for the kernel, I believe Intel is carrying patches to enable LTO that are not upstream yet. Andi Kleen is working on pushing them upstream but they haven't made it as far as I know. josh -- devel mailing list devel@lists.fedoraproject.org http://lists.fedoraproject.org/admin/lists/devel@lists.fedoraproject.org
