Tag Archives: memory

Memory usage by group of processes

Friday, March 13th, 2009

While monitoring a http/php server, I needed to do some statistics about php-cgi memory usage. Playing with memory_limit in PHP, we wanted to know the average memory usage per php-cgi process. This is easily calculated with our best friend awk. First, get the number of php running processes: # ps aux | grep php-cgi | [...]

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How to know the maximum RAM supported by your server?

Monday, August 4th, 2008

The dmidecode command gives you all informations available about your memory. With the special parameter “-t 16″, you can see the maximum (physical) memory that your server can have: $ dmidecode -t 16 # dmidecode 2.8 SMBIOS 2.4 present. Handle 0×1000, DMI type 16, 15 bytes Physical Memory Array Location: System Board Or Motherboard Use: [...]

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