SlackwareThis Forum is for the discussion of Slackware Linux.
Notices
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Get a virtual cloud desktop with the Linux distro that you want in less than five minutes with Shells! With over 10 pre-installed distros to choose from, the worry-free installation life is here! Whether you are a digital nomad or just looking for flexibility, Shells can put your Linux machine on the device that you want to use.
Exclusive for LQ members, get up to 45% off per month. Click here for more info.
Does slackware run slower on amd cpus compared to intel? I just read some articles on compilers optimized for intel cpus via the 'GenuineIntel' check. CPUs' not bearing intel cpuid will be run in non-optimized mode. It's part of Intel & AMD anti-trust settlement.
Just asking if someone could elaborate on the matter. Thanks.
Only if you're using icc, the Intel compiler, that's the only time this would happen ... yes evil Intel. Don't worry tho, Slackware is compiled with GCC not icc.
Fog also offers up a number of workarounds, such as using GNU GCC, whose optimisations are similar to that of Intel's compiler, "but the Gnu function library (glibc) is inferior". You can also patch Intel's CPU dispatcher - Fog even provides a patch to do so in "Optimizing software in C++: An optimization guide for Windows, Linux and Mac platforms".
source : from osnews in the 1st post
AMD have develop their own gcc, favoring Opterons. But this could be a thing of the past now.
That's BS, why is it inferior ? They never mentioned why glibc is inferior to Intel ... I don't believe it. I need proof. GCC is a damn good compiler and it's FLOSS, even if icc is slightly better in performance, especially on Intel processors, it better be way better, and it still won't be enough to make me switch.
As for AMD having their own version of GCC, are you sure it isn't just regular gcc ?
You can recompile slackware from source if you want to, but I bet you'd get better performance from the start if you used slackware64.
It's not about whether glibc is inferior. I just want to make sure gcc doesn't follow intel's optimization style of amd cpus, therefore downgrading the performance of non-intel chips.
Can someone point me in the right direction? thanks.
LinuxQuestions.org is looking for people interested in writing
Editorials, Articles, Reviews, and more. If you'd like to contribute
content, let us know.