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)
Check Out this Related Man Page
APACHE_CHILD_TERMINATE(3) 1 APACHE_CHILD_TERMINATE(3)apache_child_terminate - Terminate apache process after this requestSYNOPSIS
bool apache_child_terminate (void )
DESCRIPTION apache_child_terminate(3) will register the Apache process executing the current PHP request for termination once execution of PHP code is
completed. It may be used to terminate a process after a script with high memory consumption has been run as memory will usually only be
freed internally but not given back to the operating system.
RETURN VALUES
Returns TRUE if PHP is running as an Apache 1 module, the Apache version is non-multithreaded, and the child_terminate PHP directive is
enabled (disabled by default). If these conditions are not met, FALSE is returned and an error of level E_WARNING is generated.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.4.0 | |
| | |
| | This function became available under FastCGI. |
| | Previously, it was supported only when PHP was |
| | installed as an Apache module. |
| | |
+--------+---------------------------------------------------+
NOTES
Note
This function is not implemented on Windows platforms.
SEE ALSO exit(3).
PHP Documentation Group APACHE_CHILD_TERMINATE(3)
Is there a way to collect data from top command to a file at regular intervals. I need this on HP-UX. I need to gather resident memory usage. I know that sar will give %cpu usage. There is a pmap command which gives memory usage in solaris. Is there a similar command in HP-UX
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do
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