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Re: postgresql 8.3 tps rate

From: Ron Mayer <rm_pg(at)cheapcomplexdevices(dot)com>
To: "M(dot) Edward (Ed) Borasky" <znmeb(at)cesmail(dot)net>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: postgresql 8.3 tps rate
Date: 2009-01-26 21:48:41
Message-ID: 497E2FB9.6070407@cheapcomplexdevices.com (view raw or flat)
Thread:
Lists: pgsql-performance
M. Edward (Ed) Borasky wrote:
> At the CMG meeting I asked the disk drive engineers, "well, if the
> drives are doing the scheduling, why does Linux go to all the trouble?"
> Their answer was something like, "smart disk drives are a relatively
> recent invention." But

One more reason?
I imagine the disk drives wouldn't be aware of IO scheduling classes
and priorities ( http://linux.die.net/man/1/ionice ), while I imagine
the linux I/O schedulers should.

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Subject: Re: postgresql 8.3 tps rate
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