Michael, I would probably simply run a script something like
'while [ 1 ]; do date >>ps.log; ps axv | egrep "perl|tomcat|apache"
ps.log;sleep 15; done'
Then compare results over time (probably using a perl script to parse and accumulate the data you need) sar is also nice to log and give overall stats e.g. [EMAIL PROTECTED]:~$ sar -r 2 5 Linux 2.6.15-27-386 (reepy) 14/02/07 10:26:16 kbmemfree kbmemused %memused kbbuffers kbcached kbswpfree kbswpused %swpused kbswpcad 10:26:18 48964 142516 74.43 15372 46796 984856 19164 1.91 4 10:26:20 48964 142516 74.43 15372 46796 984856 19164 1.91 4 10:26:22 48964 142516 74.43 15376 46796 984856 19164 1.91 4 10:26:24 48964 142516 74.43 15376 46796 984856 19164 1.91 4 10:26:26 48836 142644 74.50 15376 46796 984856 19164 1.91 4 Average: 48938 142542 74.44 15374 46796 984856 19164 1.91 4 Regards, Martin On 2/14/07, Michael Lake <[EMAIL PROTECTED]> wrote:
Amos Shapira wrote: > On 13/02/07, Mike Lake <[EMAIL PROTECTED]> wrote: > >> >> Googling for 'memory profiler web applications' and things brings up >> things that you use to find memory leaks in apps which I dont want. >> Naturally top just gives me instantaneous values which don't mean much >> when a web app is only getting a few hits a minute or even less. >> Thats why I want to get an average over a few hours or so. >> >> Also I don't have Gnome or any gui thing on this server so it has to be >> command line or a perl or bash or other program that can be run from >> command line. Output to file would be perfect. >> >> Does anyone have suggestions? What do people here use for getting stats >> on programs like this? > > > I'm not sure there is anything special about web applications - after > all to the system they should look as just another process, although it usually > generates lots of network traffic. Yes, thats correct. I would just look at the sum total of all the Perl processes=the Perl app that is running vs sum of all Java stuff=the Tomcat. > "exmap" seems to be something about this, I haven't used it but from its > Debian package dependencies it looks like it depends on GTK2 so it must be > some sort of a GUI-based application. But maybe you can run it remotely > with its window opened on your local $DISPLAY. I found that using apt-cache on my laptop but to install it it will pull in GTK. As you mention it I have just looked it up on the web. Its using GTK for display only and its a perl script underneath that does the analysis. See its homepage at: http://www.berthels.co.uk/exmap/ "Exmap is a tool to allow the real memory usage of a collection of processes to be examined. A linux kernel loadable module is used to export information to userspace, which is examined by a perl/gtk application to build a picture of how pages are shared amongst processes and their shared libraries." BUT! "Exmap is linux-specific, since it uses a linux kernel loadable module. Additionally, the kernel module requires a fairly recent kernel (2.6.8 works, as may some earlier 2.6) in order to successfully compile or run." The server I have is a vserver running 2.4.22 kernel. So exmap is out anyways. Thanks for the suggestion. Mike -- Michael Lake Computational Research Support Unit Science Faculty, UTS Ph: 9514 2238 -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
-- Regards, Martin Martin Visser -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
