From: Michael Stone <mstone+postgres@mathom.us>
To: Josh Berkus <josh@agliodbs.com>
Cc: pgsql-hackers@postgresql.org
Cc: pgsql-performance@postgresql.org
Subject: Re: [HACKERS] A Better External Sort?
Date: Mon, 03 Oct 2005 17:53:32 -0400
Message-ID: <20051003215332.GS2241@mathom.us> (raw)
In-Reply-To: <200510031334.02030.josh@agliodbs.com>
References: <31833713.1128111650174.JavaMail.root@elwamui-polski.atl.sa.earthlink.net>
<200509301341.22795.josh@agliodbs.com>
<20050930231032.GQ2241@mathom.us>
<200510031334.02030.josh@agliodbs.com>
On Mon, Oct 03, 2005 at 01:34:01PM -0700, Josh Berkus wrote:
>> >Realistically, you can't do better than about 25MB/s on a
>> > single-threaded I/O on current Linux machines,
>>
>> What on earth gives you that idea? Did you drop a zero?
>
>Nope, LOTS of testing, at OSDL, GreenPlum and Sun. For comparison, A
>Big-Name Proprietary Database doesn't get much more than that either.
You seem to be talking about database IO, which isn't what you said.
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To: pgsql-performance@postgresql.org
Cc: mstone+postgres@mathom.us, josh@agliodbs.com, pgsql-hackers@postgresql.org
Subject: Re: [HACKERS] A Better External Sort?
In-Reply-To: <20051003215332.GS2241@mathom.us>
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