RE: Does anyone run test win vs. linux and can share how muchfaster is linux than windows, please?

The answer is "may not be." Imagine some syscall that's slower on operating system A than it is on operating system B. It's of course possible to construct an app on system A that uses this syscall so many times that the syscall's contribution to response time dominates the user's experience with the app.

I think Billy's point is that the odds of this happening to you are slim, and I think Leandro's point is that the odds may be higher than you might believe.

I'd like to insert the perspective, "Why bank on 'odds?'" No matter what the odds, it might be affecting you; it might not. If you learn how to measure response time accurately, then you'll KNOW whether you're affected, and you'll be able to make an informed decision about what to do next.

If you learn how to measure response time accurately, you won't waste your time fixing things that aren't problems, and you won't have to endure problems that you can't detect.

Cary Millsap
Hotsos Enterprises, Ltd.
http://www.hotsos.com
* Nullius in verba *

Visit www.hotsos.com for curriculum and schedule details...

-----Original Message-----
From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Leandro Guimaraes Faria C. Dutra Sent: Wednesday, August 10, 2005 8:05 AM To: VerreyB_at_telkom.co.za
Cc: oracle-l_at_freelists.org; oracle-l-bounce_at_freelists.org Subject: RE: Does anyone run test win vs. linux and can share how muchfaster is linux than windows, please?

oracle-l-bounce_at_freelists.org gravou em 2005-08-10 03:09:19:

> I stand by what I said. Performance is not a function of the operating
> system.

        Is not or may not be?

        If a particular OS is of bad quality, and moreover if it participates in a culture of low quality, chances are it will have bad performing parts and components one depends on will be badly implemented. It will even tend to have lower quality sysadmins with bad information -- specially if it's a black box.

> The impact that the actual o/s has on performance is negligble
> when looking at issues such as configuration, software design,
> implementation and so on.

        OK, but that does not preclude the possibility of a specific application depending on something that was badly implemented in a particular OS. And if that particular OS already makes part in a low-quality culture, the chances of hitting particularly badly implemented components in the platform is quite high.

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