Horton
Menu

Re: Reduce palloc's in numeric operations.

Alvaro Herrera <alvherre@2ndquadrant.com>

View thread
From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>
Cc: pgsql-hackers@postgresql.org
Date: 2012-10-17T15:04:37Z
Lists: pgsql-hackers 
Kyotaro HORIGUCHI wrote:
> Hello, I will propose reduce palloc's in numeric operations.
> 
> The numeric operations are slow by nature, but usually it is not
> a problem for on-disk operations. Altough the slowdown is
> enhanced on on-memory operations.
> 
> I inspcted them and found some very short term pallocs. These
> palloc's are used for temporary storage for digits of unpaked
> numerics.

This looks like a neat little patch.  Some feedback has been provided by
Heikki (thanks!) and since we're still waiting for an updated version, I
have marked this Returned with Feedback for the time being.  Please make
sure to address the remaining issues and submit to the next commitfest.
Thanks.

-- 
Álvaro Herrera                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

Commits

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

  1. Replace XLogRecPtr struct with a 64-bit integer.