Re: Re: Misaligned BufferDescriptors causing major performance problems on AMD - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Re: Misaligned BufferDescriptors causing major performance problems on AMD
Date
Msg-id 17065.1391612231@sss.pgh.pa.us
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In response to Re: Re: Misaligned BufferDescriptors causing major performance problems on AMD  (Andres Freund <andres@2ndquadrant.com>)
Responses Re: Re: Misaligned BufferDescriptors causing major performance problems on AMD  (Andres Freund <andres@2ndquadrant.com>)
Re: Misaligned BufferDescriptors causing major performance problems on AMD  (Greg Stark <stark@mit.edu>)
List pgsql-hackers
Andres Freund <andres@2ndquadrant.com> writes:
> On 2014-02-04 16:24:02 -0800, Peter Geoghegan wrote:
>> I suspect that the scenario described in this article accounts for the
>> quite noticeable effect reported: http://danluu.com/3c-conflict

> I don't think that's applicable here.

Maybe, or maybe not, but I think it does say that we should be very wary
of proposals to force data structure alignment without any testing of the
consequences.
        regards, tom lane



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