On 5/24/2011 8:25 AM, Sturla Molden wrote:
Artur Siekielski is not talking about cache locality, but copy-on-write
fork on Linux et al.
When reference counts are updated after forking, memory pages marked
copy-on-write are copied if they store reference counts. And then he
quickly runs out of memory. He wants to put reference counts and
PyObjects in different pages, so only the pages with reference counts
get copied.
I don't think he cares about cache locality at all, but the rest of us
do :-)
It seems clear that separating reference counts from objects satisfies a
specialized need and should be done in a spedial, patched version of
CPython rather than the general distribution.
--
Terry Jan Reedy
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