| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | David Rowley <dgrowleyml(at)gmail(dot)com> |
| Cc: | Andres Freund <andres(at)anarazel(dot)de>, Julien Rouhaud <rjuju123(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Yura Sokolov <y(dot)sokolov(at)postgrespro(dot)ru>, PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Reducing the chunk header sizes on all memory context types |
| Date: | 2022-10-10 22:42:44 |
| Message-ID: | 207255.1665441764@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
David Rowley <dgrowleyml(at)gmail(dot)com> writes:
> The main reason I brought it up was that only yesterday I was looking
> into fixing the slowness of the Slab allocator. It's currently quite
> far behind the performance of both generation.c and aset.c and it
> would be very nice to bring it up to at least be on-par with those.
Really!? That's pretty sad, because surely it should be handling a
simpler case.
Anyway, I'm about to push this with an Assert in SlabFree and
run-time test in SlabRealloc. That should be enough to assuage
my safety concerns, and then we can think about better performance.
regards, tom lane
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