passenger-memory-stats - reports a snapshot of the Apache and Phusion
Passenger memory statistcs
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.
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.
passenger-status(8), ps(1), top(1),
User guide at http://www.modrails.com/documentation.html
Phusion Passenger is written by Phusion (http://www.phusion.nl)
"Phusion" and "Phusion Passenger" are trademarks of Hongli Lai & Ninh
This manual page was written by Neil Wilson <email@example.com> for
the Ubuntu project (but may be used by others).