[Fwd: Re: CPU types and queries...]
От | Ron Johnson |
---|---|
Тема | [Fwd: Re: CPU types and queries...] |
Дата | |
Msg-id | 1022714995.17105.14.camel@rebel обсуждение исходный текст |
Список | pgsql-novice |
And, of course, you VACUUM ANALYZE each database nightly... -----Forwarded Message----- > From: Ron Johnson <ron.l.johnson@cox.net> > To: James Kelty <jamesk@ashlandagency.com> > Subject: Re: [NOVICE] CPU types and queries... > Date: 29 May 2002 18:27:04 -0500 > > On Wed, 2002-05-29 at 16:00, James Kelty wrote: > > > > > > Hello, > > > > A question was recently brought up at my place of business about CPU > > types, and Postgres. > > > > We have Two systems, both running Red Hat 7.2, both with 4Gig's of PC133 > > memory. > > > > The first system has TWO 933Mhz Intel PIII (Coppermine) procs, and a > > certain query returns VERY fast, around 2 seconds. > > > > The second system has TWO 700Mhx Intel PIII Xeon (Cascades) procs, but > > the same query from the same code from the same web server takes approx. > > 10-12 seconds. > > > > Is there REALLY that much difference between the two proc types? Will > > 233Mhz actually make THAT much of a difference? > > > > What about the big Xeon cache? 1Mb vs. the Coppermine 256k cache? > > This is presuming that the databases are the same size, and reside > on exactly the same kind of disks, controllers, shared_buffers size, > indexes, number of rows, etc, right? -- +---------------------------------------------------------+ | Ron Johnson, Jr. Home: ron.l.johnson@cox.net | | Jefferson, LA USA http://ronandheather.dhs.org:81 | | | | "I have created a government of whirled peas..." | | Maharishi Mahesh Yogi, 12-May-2002, | ! CNN, Larry King Live | +---------------------------------------------------------+
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