mod_perl application profiling

shanu_040 has asked for the wisdom of the Perl Monks concerning the following question:

Hi Monk,

Need your help...I am try to profile mod_perl application using Devel::NYTProf::Apache.

I have edit the lines in httpd.conf explained in documentation.

<IfDefine NYTPROF>
        MaxClients 1
        PerlPassEnv NYTPROF
        PerlModule Devel::NYTProf::Apache
</IfDefine>
[download]

And Following in /etc/profile

NYTPROF=addpid=1:trace=2:log=/home/amit/nytlog:start=init:file=/home/a
+mit/nytprof.out:compress=1

export NYTProf
[download]

And Start the server using "httpd -D NYRPROF"

I run my application and stop the server using "service httpd stop"

When I run "nytprofhtml" alone it says "/usr/bin/nytprofhtml: Unable to access nytprof.out"

But when I run "nytprofhtml -f /home/amitnytprof.out.3851"
# trace=2
Generating report...
Reading /home/amit/nytprof.out.3851
Error reading file: inflate failed, error -5 ((null)) at end of input file, perhaps the process didn't exit cleanly or the file has been truncated at /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Devel/NYTProf/Data.pm line 82.
It gives the forementioned error.
Can anybody help me?
Thanks
Shanu

Comment on mod_perl application profiling - Problem Select or Download Code

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Re: mod_perl application profiling - Problem by cLive ;-) (Prior) on Oct 14, 2016 at 21:03 UTC
Late to the party here, but are you using Apache::SizeLimit? I was finding that was cutting down attempts to use NYTProf. I'm sure you worked it out, but figured I'd comment in case anyone else was having issues.	[reply]
Re: mod_perl application profiling - Problem by jethro (Monsignor) on Apr 07, 2010 at 09:11 UTC
What version of NYTProf are you using? What perl version? Did you check the size of /home/amit/nytprof.out.3851, was the file emtpy or did it contain data? Did you check apaches error logs? This problem seems to occur when the script or NYTProf doesn't exit cleanly. See http://code.google.com/p/perl-devel-nytprof/issues/detail?id=20 for a similar problem (seems the solution would be to update to the newest version). See http://old.nabble.com/15s-latency-with-fastcgi%2BApache2%2Bcatalyst-5.8-td23620259.html for possible remedies If nothing helps you could also ask the developers themselves on the mailing list http://groups.google.com/group/develnytprof-dev	[reply]
Re: mod_perl application profiling - Problem by Anonymous Monk on Apr 07, 2010 at 11:14 UTC
Hi, Following is the environment: perl: 5.8.8 Devel::NYTProf: 3.11 Thanks	[reply]


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mod_perl application profiling - Problem