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Re: tuplesort memory usage: grow_memtuples

Robert Haas <robertmhaas@gmail.com>

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From: Robert Haas <robertmhaas@gmail.com>
To: Jeff Janes <jeff.janes@gmail.com>, Greg Smith <greg@2ndquadrant.com>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2012-06-26T21:06:47Z
Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Incorporate a couple of recent tuplesort.c improvements into tuplestore.c.

On Sat, Mar 3, 2012 at 3:22 PM, Jeff Janes <jeff.janes@gmail.com> wrote:
> When sorting small tuples, the memtuples array can use a substantial
> fraction of the total per-tuple memory used. (In the case of pass by
> value, it is all of it)
>
> The way it grows leads to sub-optimal memory usage.

Greg, I see you signed up to review this on the 14th, but I don't see
a review yet.  Are you planning to post one soon?

-- 
Robert Haas
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