Memory usage very high under AMD64?

From: Date: Wed, 02 Apr 2008 19:16:34 +0000
Subject: Memory usage very high under AMD64?
Groups: php.general 
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Hi I am trying to figure out expected memory usage of PHP Under my 32bit install Apache 2 processes are drawing around 45MB virtual and 25MB RSS. (XCache enabled) However, under 64bit, same PHP and Apache versions, FastCGI is consuming around 110MB virt and 25MB RSS. However, Apache2 processes are consuming around 215MB virt and 20MB RSS Can anyone please help debug why the virtual consumption is so high? Actually the RSS numbers look fine - it's the vsz numbers that I am trying to understand why so high? Thanks Ed W

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