Re: Sequential Scan Read-Ahead

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>
To: Curt Sampson <cjs@cynic.net>
Cc: Bruce Momjian <pgman@candle.pha.pa.us>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2002-04-25T03:30:20Z
Lists: pgsql-hackers
Curt Sampson <cjs@cynic.net> writes:
> Grabbing bigger chunks is always optimal, AFICT, if they're not
> *too* big and you use the data. A single 64K read takes very little
> longer than a single 8K read.

Proof?

			regards, tom lane