Re: PostgreSQL insights: does it use DMA?

From: "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
To: "Antonio Rodriges" <antonio(dot)rrz(at)gmail(dot)com>
Cc: <pgsql-performance(at)postgresql(dot)org>
Subject: Re: PostgreSQL insights: does it use DMA?
Date: 2011-09-09 20:29:48
Message-ID: 4E6A30EC0200002500041075@gw.wicourts.gov
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Antonio Rodriges <antonio(dot)rrz(at)gmail(dot)com> wrote:

> PostgreSQL is implemented mostly in C, so I do not know whether it
> needs to use special procedure calls, however this is true, for
> example, for Java
> http://www.ibm.com/developerworks/library/j-zerocopy/

After scanning that I'm inclined to think that the only place that
zerocopy techniques might make sense is in the context of BLOBs.
That's not currently happening, and not on anyone's radar as far as
I know.

-Kevin

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