Apache Process question about RAM usage

Posted by Andrew Fashion on Server Fault See other posts from Server Fault or by Andrew Fashion
Published on 2011-01-11T07:39:20Z Indexed on 2011/01/11 7:55 UTC
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So everytime I load a new page, I notice a new HTTPD process opens, every time I click a page, and each process says it's using anywhere from 2-4.5% of memory. Does that mean every single process is running at that time using 2-4% of RAM? It's a brand new server and I'm the only one on the server at the moment.

Or does it mean all the other processes are dying, and only the new one is active. Because 4% of my 2048MB of RAM is already 82MB for just one process!?!?

Let me know, because I am trying to determine what I need to beef my server up in order to handle high loads of traffic. I'm expect to get 20,000 uniques per day on launch.

I am currently running a Dual Quad Xeon server, with only 2GB of ram, I will upgrade to 8GB or more shortly. Let me know what you suggest!

thank you

[root@D18634 log]# top | grep 'httpd'
11315 apache    15   0  362m  82m  24m R 12.3  4.1   0:03.00 httpd                     
11310 apache    16   0  322m  41m  21m S  5.7  2.1   0:02.98 httpd                     
11315 apache    15   0  362m  83m  25m S 24.3  4.1   0:03.73 httpd                     
11319 apache    16   0  324m  42m  20m R  1.0  2.1   0:01.85 httpd                     
11319 apache    16   0  362m  82m  23m R 78.5  4.1   0:04.21 httpd                     
11321 apache    16   0  323m  44m  23m S 35.3  2.2   0:04.13 httpd                     
11319 apache    15   0  361m  82m  23m S  8.3  4.1   0:04.46 httpd                     
11321 apache    15   0  323m  44m  23m S 35.9  2.2   0:05.21 httpd                     
11313 apache    15   0  324m  41m  19m S 48.6  2.1   0:03.23 httpd                     
11322 apache    16   0  354m  72m  20m R 11.0  3.6   0:05.11 httpd                     
11322 apache    16   0  354m  72m  20m S 23.9  3.6   0:05.83 httpd                     
11314 apache    16   0  355m  75m  22m R 18.3  3.7   0:04.64 httpd

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