On Thu, Dec 1, 2011 at 10:30 AM, Richard Henderson <r...@redhat.com> wrote:
> I made it up. As he said, it's only used for padding to *attempt to* avoid > false sharing. Currently sources won't actually fail with the wrong > cacheline value, but they'll work more efficiently with the right value. The cache line size is 128 bytes for PPC64 and 32 bytes for PPC32. L1 cache line size also is a GCC parameter PARAM_L1_CACHE_LINE_SIZE and is set by most ports. - David
