Re: [HACKERS] Small improvement to compactify_tuples - Mailing list pgsql-hackers

From Peter Geoghegan
Subject Re: [HACKERS] Small improvement to compactify_tuples
Date
Msg-id CAH2-WzkcVzWnDMuZrgcZv9SZcfNSF=t5KiLTBWjmzO51yvYAaA@mail.gmail.com
Whole thread Raw
In response to Re: [HACKERS] Small improvement to compactify_tuples  (Robert Haas <robertmhaas@gmail.com>)
List pgsql-hackers
On Wed, Nov 8, 2017 at 8:19 AM, Robert Haas <robertmhaas@gmail.com> wrote:
> I don't remember any more just how much faster qsort_tuple() and
> qsort_ssup() are than plain qsort(), but it was significant enough to
> convince me to commit 337b6f5ecf05b21b5e997986884d097d60e4e3d0...

IIRC, qsort_ssup() was about 20% faster at the time, while
qsort_tuple() was 5% - 10% faster.

-- 
Peter Geoghegan


-- 
Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-hackers

pgsql-hackers by date:

Previous
From: Arthur Zakirov
Date:
Subject: Re: [HACKERS] [PATCH] Generic type subscripting
Next
From: Claudio Freire
Date:
Subject: Re: [HACKERS] Small improvement to compactify_tuples