Re: [Sbcl-devel] statistics of weak hash tables

[Luís O. <lu...@gm...>]

On Mon, Jan 8, 2018 at 9:38 AM Jim Newton <jn...@lr...> wrote:
> Hi have a hefty algorithm which I would like to use this weak table feature.
> I’m happy to give feedback whether the fix changes anything in my performance.
> Can someone explain to me what need to do to test with and without this feature.

At first, I misunderstood Douglas's statement and thought that this
had been fixed in the (more distant) past, hence my remark about the
FIXME. This seems to be the commit where Douglas has improved the garbage
collection of weak hash-tables:
<https://sourceforge.net/p/sbcl/sbcl/ci/05726638c109c7c3b21c2c282451ac25a3e52538/>.

If you'd like to measure the impact on your code, checkout that
commit, compile SBCL, measure, do the same with the previous commit
and compare.

Cheers,
Luís