Re: Parallel bitmap heap scan

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Andres Freund <andres(at)anarazel(dot)de>
Cc: Dilip Kumar <dilipbalaut(at)gmail(dot)com>, Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com>, Rafia Sabih <rafia(dot)sabih(at)enterprisedb(dot)com>, tushar <tushar(dot)ahuja(at)enterprisedb(dot)com>, Amit Khandekar <amitdkhan(dot)pg(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Parallel bitmap heap scan
Date: 2017-02-07 21:36:55
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On Tue, Feb 7, 2017 at 4:15 PM, Andres Freund <andres(at)anarazel(dot)de> wrote:
> FWIW, I think it'd have been better to not add the new callbacks as
> parameters to *_create(), but rather have them be "templatized" like the
> rest of simplehash. That'd require that callback to check the context,
> to know whether it should use shared memory or not, but that seems fine
> to me. Right now this pushes the head of simplehash above a
> cacheline...

Something like the attached?

Robert Haas
The Enterprise PostgreSQL Company

Attachment Content-Type Size
rework-simplehash-allocator.patch application/octet-stream 5.2 KB

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