Re: Move PinBuffer and UnpinBuffer to atomics

From: Andres Freund <andres(at)anarazel(dot)de>
To: YUriy Zhuravlev <u(dot)zhuravlev(at)postgrespro(dot)ru>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Move PinBuffer and UnpinBuffer to atomics
Date: 2015-09-15 02:06:25
Message-ID: 20150915020625.GI9666@alap3.anarazel.de
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On 2015-09-14 17:41:42 +0200, Andres Freund wrote:
> I pointed out how you can actually make this safely lock-free giving you
> the interesting code.

And here's an actual implementation of that approach. It's definitely
work-in-progress and could easily be optimized further. Don't have any
big machines to play around with right now tho.

Andres

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bufferpin.diff text/x-diff 34.3 KB

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