| From: | Andres Freund <andres(at)2ndquadrant(dot)com> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Spinlocks and compiler/memory barriers |
| Date: | 2014-06-28 13:45:43 |
| Message-ID: | 20140628134543.GG6450@awork2.anarazel.de |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On 2014-06-28 15:41:46 +0200, Andres Freund wrote:
> On 2014-06-28 09:25:32 -0400, Robert Haas wrote:
> > No, I think it's going to be *much* simpler than that. How about I
> > take a crack at this next week and then either (a) I'll see why it's a
> > bad idea and we can go from there or (b) you can review what I come up
> > with and tell me why it sucks?
>
> Ok. I think that's going in the wrong direction (duplication of
> nontrivial knowledge), but maybe I'm taking a to 'purist' approach
> here. Prove me wrong :)
What I forgot: I'm also pretty sure that the more lockless stuff we
introduce the more places are going to need acquire/release semantics...
Greetings,
Andres Freund
--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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