From: Scott Marlowe <scott.marlowe@gmail.com>
To: Greg Smith <greg@2ndquadrant.com>
Cc: RD黄永卫 <yongwei_huang@temp.gtmc.com.cn>
Cc: pgsql-performance@postgresql.org
Subject: Re: [PERFORM] About “context-switching issue on Xeon” test case ？
Date: Fri, 9 Apr 2010 23:07:58 -0600
Message-ID: <n2ldcc563d11004092207m813076ddjed47e37621384bb7@mail.gmail.com> (raw)
In-Reply-To: <4BBFF85B.60107@2ndquadrant.com>
References: <EDA3764BC9DBA043AABB8FF57D73237801B5CBDB@QFWA0016.gtmcl.com>
<4BBFF85B.60107@2ndquadrant.com>
2010/4/9 Greg Smith <greg@2ndquadrant.com>:
> RD黄永卫 wrote:
>>
>> Anybody have the test case of “ context-switching issue on Xeon” from
>> Tm lane ？
>>
>
> That takes me back:
> http://archives.postgresql.org/pgsql-performance/2004-04/msg00280.php
>
> That's a problem seen on 2004 era Xeon processors, and with PostgreSQL
> 7.4. I doubt it has much relevance nowadays, given a) that whole area of
> the code was rewritten for PostgreSQL 8.1, and b) today's Xeons are
> nothing like 2004's Xeons.
Note that I found this comment by some guy named Greg from almost a
year ago that I thought was relevant. (I'd recommend reading the
whole thread.)
http://archives.postgresql.org/pgsql-performance/2009-06/msg00097.php
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To: pgsql-performance@postgresql.org
Cc: scott.marlowe@gmail.com, greg@2ndquadrant.com, yongwei_huang@temp.gtmc.com.cn
Subject: Re: Re: [PERFORM] About “context-switching issue on Xeon” test case ？
In-Reply-To: <n2ldcc563d11004092207m813076ddjed47e37621384bb7@mail.gmail.com>
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