Re: MySQL 3.23.x preformance on MacOS 10.2

2002-12-19 Thread Paul DuBois
At 8:12 -1000 12/17/02, [EMAIL PROTECTED] wrote:

Hello all,

 I have checked the mailing list and the documentation but have been
unable to find any information regarding the level of support for
MySQL on the MacOS 10.2 platform. After moving a production database
from a linux to MacOS 10.2 for development I have noticed that on my
MacOS machine there is a significant performance hit on the MySQL
server. Perhaps this is just hardware related but it seems as though
the performance should be at least comparable on the following
machines.

Intel Pentium III 933 MHz
Mandrake Linux v8.2
No windowing system running
512 MB RAM
Query takes about 12 seconds.

Apple G4 1GHz
MacOS X 10.2
No windowing system running
512 MB RAM
Query Takes about 25 seconds.

I have noticed that on linux the mysqld runs as many processes and on
MacOS 10.2 it runs as a single process. Is this an architectural decision?
or have i configured the server incorrectly?

Thank you,
Christophe Banal


No, actually, it always runs as a single process.  What you're seeing
is that ps reports separate threads as processes on Linux.

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Re: MySQL 3.23.x preformance on MacOS 10.2

2002-12-19 Thread Brent Baisley
I'm not surprised OSX is slower than Linux. Apple still has a way to go 
toward fully optimizing the Unix underpinnings for their hardware. They 
are also a few versions behind in the BSD they are using. I'm presuming 
you have similar settings for each setup.

As for the processes you see on Linux, in a nutshell Linux used 
threads and other Unix uses processes. That's one of the fundamental 
differences between Linux and other Unix flavors. Your actually seeing 
threads. Threads don't have the launch overhead that a process does so 
you should get better performance with threads.

On Thursday, December 19, 2002, at 01:43 PM, Paul DuBois wrote:

Apple G4 1GHz
MacOS X 10.2
No windowing system running
512 MB RAM
Query Takes about 25 seconds.

I have noticed that on linux the mysqld runs as many processes and on
MacOS 10.2 it runs as a single process. Is this an architectural 
decision?
or have i configured the server incorrectly?

Thank you,
Christophe Banal

No, actually, it always runs as a single process.  What you're seeing
is that ps reports separate threads as processes on Linux.


--
Brent Baisley
Systems Architect
Landover Associates, Inc.
Search  Advisory Services for Advanced Technology Environments
p: 212.759.6400/800.759.0577


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Re: MySQL 3.23.x preformance on MacOS 10.2

2002-12-19 Thread Gary Hostetler
Having built several Linux boxes on slower macs I can atest that linux on a slower mac 
(uing linuxppc or one of the other variants) is way faster than my terminal window is 
on my dual 1.25 gig processor G4. Just accessing commands are slower on the new mac. 
This surprises me as unix is the base for the operating system on Jaguar just as 
linuxppc was the base for the slower mac.

Gary


-- Original Message --
From: Brent Baisley [EMAIL PROTECTED]
Date:  Thu, 19 Dec 2002 17:03:45 -0500

I'm not surprised OSX is slower than Linux. Apple still has a way to go 
toward fully optimizing the Unix underpinnings for their hardware. They 
are also a few versions behind in the BSD they are using. I'm presuming 
you have similar settings for each setup.

As for the processes you see on Linux, in a nutshell Linux used 
threads and other Unix uses processes. That's one of the fundamental 
differences between Linux and other Unix flavors. Your actually seeing 
threads. Threads don't have the launch overhead that a process does so 
you should get better performance with threads.

On Thursday, December 19, 2002, at 01:43 PM, Paul DuBois wrote:

 Apple G4 1GHz
 MacOS X 10.2
 No windowing system running
 512 MB RAM
 Query Takes about 25 seconds.

 I have noticed that on linux the mysqld runs as many processes and on
 MacOS 10.2 it runs as a single process. Is this an architectural 
 decision?
 or have i configured the server incorrectly?

 Thank you,
 Christophe Banal

 No, actually, it always runs as a single process.  What you're seeing
 is that ps reports separate threads as processes on Linux.

--
Brent Baisley
Systems Architect
Landover Associates, Inc.
Search  Advisory Services for Advanced Technology Environments
p: 212.759.6400/800.759.0577


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MySQL 3.23.x preformance on MacOS 10.2

2002-12-17 Thread banal
Hello all,

 I have checked the mailing list and the documentation but have been
unable to find any information regarding the level of support for
MySQL on the MacOS 10.2 platform. After moving a production database
from a linux to MacOS 10.2 for development I have noticed that on my
MacOS machine there is a significant performance hit on the MySQL
server. Perhaps this is just hardware related but it seems as though
the performance should be at least comparable on the following
machines.

Intel Pentium III 933 MHz
Mandrake Linux v8.2
No windowing system running
512 MB RAM
Query takes about 12 seconds.

Apple G4 1GHz
MacOS X 10.2
No windowing system running
512 MB RAM
Query Takes about 25 seconds.

I have noticed that on linux the mysqld runs as many processes and on
MacOS 10.2 it runs as a single process. Is this an architectural decision?
or have i configured the server incorrectly?

Thank you,
Christophe Banal



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   http://lists.mysql.com/   (the list archive)

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