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LEARN ABOUT DEBIAN

passenger-memory-stats

passenger-memory-stats(8)				      Administration Commands					 passenger-memory-stats(8)

NAME

       passenger-memory-stats - reports a snapshot of the Apache and Phusion Passenger memory statistcs

SYNOPSIS

       passenger-memory-stats

DESCRIPTION

       passenger-memory-stats allows you to easily analyze the real memory usage of Phusion Passenger and Apache.

       Process	inspection  tools  such  as ps and top are useful, but they rarely show the correct memory usage. The real memory usage is usually
       lower than what ps and top report.

       There are many technical reasons why this is so, but an explanation is beyond the scope of this page. We refer  the  interested	reader	to
       operating systems literature about virtual memory and copy-on-write.

       When you run this tool the Private or private dirty RSS field shows the real memory usage of processes.

ENVIRONMENT VARIABLES

       HTTPD  The full filename to the Apache executable. By default, Passenger will attempt to autodetect the Apache executable. If autodetection
	      fails for whatever reason, then Apache processes will not be shown in the memory statistics. In that case, you may manually  specify
	      the location to the Apache executable using this environment variable.

SEE ALSO

       passenger-status(8), ps(1), top(1),

       User guide at http://www.modrails.com/documentation.html

AUTHOR

       Phusion Passenger is written by Phusion (http://www.phusion.nl)

       "Phusion" and "Phusion Passenger" are trademarks of Hongli Lai & Ninh Bui.

       This manual page was written by Neil Wilson <neil@brightbox.co.uk> for the Ubuntu project (but may be used by others).

Phusion Passenger							2.0						 passenger-memory-stats(8)