| commit | b7598b1b855b39628104feb9a1f6151a86351a64 | |
| author | H.J. Lu <hjl.tools@gmail.com> | |
| Fri, 20 May 2016 21:41:14 +0000 (20 14:41 -0700) | ||
| committer | H.J. Lu <hjl.tools@gmail.com> | |
| Fri, 20 May 2016 21:42:00 +0000 (20 14:42 -0700) | ||
| tree | a59690d12b5a09273bafd6cede80a75514c44816 | treesnapshot (tar.gz zip) |
| parent | b003c666efc6c25908a36bcabee87a2bf1c49a09 | commitdiff |
Remove special L2 cache case for Knights Landing
L2 cache is shared by 2 cores on Knights Landing, which has 4 threads
per core:
https://en.wikipedia.org/wiki/Xeon_Phi#Knights_Landing
So L2 cache is shared by 8 threads on Knights Landing as reported by
CPUID. We should remove special L2 cache case for Knights Landing.
[BZ #18185]
* sysdeps/x86/cacheinfo.c (init_cacheinfo): Don't limit threads
sharing L2 cache to 2 for Knights Landing.
L2 cache is shared by 2 cores on Knights Landing, which has 4 threads
per core:
https://en.wikipedia.org/wiki/Xeon_Phi#Knights_Landing
So L2 cache is shared by 8 threads on Knights Landing as reported by
CPUID. We should remove special L2 cache case for Knights Landing.
[BZ #18185]
* sysdeps/x86/cacheinfo.c (init_cacheinfo): Don't limit threads
sharing L2 cache to 2 for Knights Landing.
| ChangeLog | diffblobblamehistory | |
| sysdeps/x86/cacheinfo.c | diffblobblamehistory |