Messages in this thread | | | Date | Sun, 10 Sep 2006 22:39:50 -0400 | From | Dave Jones <> | Subject | Re: Cache line size |
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On Sun, Sep 10, 2006 at 08:34:46PM -0400, John Richard Moser wrote:
> Is there a way for the Linux Kernel to know the cache line size of the > CPU it's on, besides #define X86_CACHE_LINE_SZ 32 or whatnot? I am > looking in /proc/cpuinfo trying to determine how to run caching > optimizations and interested in this information and its implications. > It may also be useful if I can get this information at run time in > application code.
You can use /dev/cpu/x/cpuid to read it directly from the CPU. See the source of x86info for examples.
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