[Python-Dev] Arena-freeing obmalloc ready for testing (original) (raw)

Nick Craig-Wood nick at craig-wood.com
Thu Mar 2 15:54:38 CET 2006

On Thu, Mar 02, 2006 at 01:43:00AM -0600, Tim Peters wrote:

I'm optimistic, because the new test compares a quantity already being tested by the macro, a second time against 0, and it's hard to get cheaper than that. However, the new branch isn't predictable, so who knows?

When compiling with gcc at least you could give the compiler a hint, eg

http://kerneltrap.org/node/4705

For example, in a release build on WinXP, VM size is about 48MB at the "full" prompt, and drops to 3MB at the "empty" prompt. In the trunk (without this patch), VM size falls relatively little from what it is at the "full" prompt

Excellent work!

-- Nick Craig-Wood <nick at craig-wood.com> -- http://www.craig-wood.com/nick

More information about the Python-Dev mailing list