Determining CPU features / cache organization from userland

[Peter Jeremy]

On Fri, Oct 10, 2003 at 03:09:47PM -0400, Andrew Gallatin wrote:
>
>Bruce M Simpson writes:
> > I've been thinking we should definitely make the cache organization
> > info available via sysctl. I am thinking we should do this to make
> > the UMA_ALIGN_CACHE definition mean something...
>
>If you do this,  it may make sense to use the same names as MacOSX.
>
>g51% sysctl hw | grep cache
>hw.cachelinesize: 128
>hw.l1icachesize: 65536
>hw.l1dcachesize: 32768
>hw.l2cachesize: 524288

What if your hardware has different linesizes for different caches?

Peter