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I am trying to understand the scope of recent changes in gcc. If you have gcc installed on your Skylake-based Arch box (and it's up-to-date), please post a few things for me:
grep -m 1 -i 'model name' /proc/cpuinfo
gcc -c -Q -march=native --help=target | grep -i 'march=\|mtune='
Thank you!
Last edited by graysky (2016-08-30 20:11:28)
CPU-optimized Linux-ck packages @ Repo-ck • AUR packages • Zsh and other configs
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Here it goes:
> uname -a
Linux arch64 4.7.2-1-ARCH #1 SMP PREEMPT Sat Aug 20 23:02:56 CEST 2016 x86_64 GNU/Linux
> grep -m 1 -i 'model name' /proc/cpuinfo
model name : Intel(R) Core(TM) i7-6500U CPU @ 2.50GHz
> gcc -c -Q -march=native --help=target | grep -i 'march=\|mtune='
-march= skylake
-mtune= skylake
R00KIE
Tm90aGluZyB0byBzZWUgaGVyZSwgbW92ZSBhbG9uZy4K
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Thanks, R.
CPU-optimized Linux-ck packages @ Repo-ck • AUR packages • Zsh and other configs
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~ master* 14s
❯ grep -m 1 -i 'model name' /proc/cpuinfo
model name : Intel(R) Core(TM) i5-6200U CPU @ 2.30GHz
~ master*
❯ gcc -c -Q -march=native --help=target | grep -i 'march=\|mtune='
-march= skylake
-mtune= skylake
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Thanks all. I got what I needed.
CPU-optimized Linux-ck packages @ Repo-ck • AUR packages • Zsh and other configs
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