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From: Stephen Frost <sfrost@snowman.net>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Ivan Voras <ivoras@freebsd.org>
Cc: pgsql-performance@postgresql.org
Subject: Re: [HACKERS] MIT benchmarks pgsql multicore (up to 48)performance
Date: Wed, 6 Oct 2010 22:07:07 -0400
Message-ID: <20101007020707.GP26232@tamriel.snowman.net> (raw)
In-Reply-To: <AANLkTi=AfTAwMv=WXdZeLzY0NNBZ1sJHDsDK+wmRMcVS@mail.gmail.com>
References: <AANLkTimW2UgVPGw6MRUBj9HabvwmsmkZasL3hKv-nUJ2@mail.gmail.com>
	<20101004175545.GA2690@csail.mit.edu>
	<4CAA21C7.1030701@agliodbs.com>
	<i8itbn$kre$1@dough.gmane.org>
	<AANLkTikXHJL+u9OdgiqCBQLB-bMcrkZeB1eEeyZqBPvA@mail.gmail.com>
	<20101007013012.GN26232@tamriel.snowman.net>
	<AANLkTi=AfTAwMv=WXdZeLzY0NNBZ1sJHDsDK+wmRMcVS@mail.gmail.com>

* Robert Haas (robertmhaas@gmail.com) wrote:
> It's good to be you.

They're HP BL465 G7's w/ 2x 12-core AMD processors and 48G of RAM.
Unfortunately, they currently only have local storage, but it seems
unlikely that would be an issue for this.

> I don't suppose you could try to replicate the lseek() contention?

I can give it a shot, but the impression I had from the paper is that
the lseek() contention wouldn't be seen without the changes to the lock
manager...?  Or did I misunderstand?

	Thanks,

		Stephen

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  Subject: Re: [HACKERS] MIT benchmarks pgsql multicore (up to 48)performance
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