LinuxQuestions.org
Download your favorite Linux distribution at LQ ISO.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Server
User Name
Password
Linux - Server This forum is for the discussion of Linux Software used in a server related context.

Notices


Reply
  Search this Thread
Old 03-02-2012, 02:27 PM   #1
circus78
Member
 
Registered: Dec 2011
Posts: 273

Rep: Reputation: Disabled
Apache different RES memory


Hi,

I am comparing two Apache installation on two different Debian server.
Both are Debian Squeeze, but one have 64bit cpu (and OS), the other is 32bit.
Both are using Apache's deb package, prefork, with lib-apache-modphp5.
If I do some tests and look at "top" command, I see that:

- 64bit os: the apache average RES size memory is 40M
- 32bit os: the apache average RES size memory is 12M

both are sharing the same configuration file and the same loaded modules.
How it's possible?
Thankyou
 
Old 03-05-2012, 10:12 AM   #2
TenTenths
Senior Member
 
Registered: Aug 2011
Location: Dublin
Distribution: Centos 5 / 6 / 7
Posts: 3,473

Rep: Reputation: 1553Reputation: 1553Reputation: 1553Reputation: 1553Reputation: 1553Reputation: 1553Reputation: 1553Reputation: 1553Reputation: 1553Reputation: 1553Reputation: 1553
Quote:
Originally Posted by circus78 View Post
How it's possible?
And the answer.....
Quote:
Originally Posted by circus78 View Post
but one have 64bit cpu (and OS), the other is 32bit.
 
Old 03-06-2012, 02:07 AM   #3
circus78
Member
 
Registered: Dec 2011
Posts: 273

Original Poster
Rep: Reputation: Disabled
Quote:
Originally Posted by TenTenths View Post
And the answer.....
I don't understand.
Using 64bit operating system implies necessarily higher ram consumption for applications?
 
Old 03-06-2012, 02:46 AM   #4
TenTenths
Senior Member
 
Registered: Aug 2011
Location: Dublin
Distribution: Centos 5 / 6 / 7
Posts: 3,473

Rep: Reputation: 1553Reputation: 1553Reputation: 1553Reputation: 1553Reputation: 1553Reputation: 1553Reputation: 1553Reputation: 1553Reputation: 1553Reputation: 1553Reputation: 1553
Quote:
Originally Posted by circus78 View Post
I don't understand.
Using 64bit operating system implies necessarily higher ram consumption for applications?
No, it implies a completely different architecture for dealing with memory.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
[SOLVED] Apache memory consumption kirti1977 Linux - Server 1 12-20-2011 01:29 AM
Does RES in top reflect any shared memory? zQUEz Linux - Server 2 04-30-2010 07:40 AM
max res @ 640x480 res with KVM guttersnipe Linux - Software 3 06-10-2008 12:46 AM
how much memory used by apache LinuxLover Linux - General 1 07-01-2006 01:17 PM
Help,Apache use too much memory adoyee Linux - Networking 0 02-11-2004 04:32 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Server

All times are GMT -5. The time now is 07:37 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration