Apache heavy load VIRT vs RES memory

Posted by pako on Server Fault See other posts from Server Fault or by pako
Published on 2010-03-15T18:53:44Z Indexed on 2010/03/16 5:06 UTC
Read the original article Hit count: 380

Filed under:

apache

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debian

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ram

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memory-usage

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linux

I have a Debian 5 server, which gets a lot of traffic. Right now the server has 4 GB of RAM and no swap memory. I see in top that Apache processes consume roughly 180 MB virtual memory (VIRT) each, and 16 MB of real RAM (RES). So how many Apache threads can I have running at the same time? About 4 GB / 180 MB = 22 or 4 GB / 16 MB = 256?

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