Thanks. That works fine with a script executed from a commandline, or within an environment like Emacs. However, even there, no variation I have tried lets me use "slowops=0". The documentation for Devel::NYTProf says to use slowops if some of the functions have negative timings, but I can not tell from the documentation where such an assignment is supposed to be set. From the behaviour I see, that seems to be a way to use NYTProf within a CGI script as an alternative to setting the configuration parameters I'd used in httpd.conf.

Thus, the problem remains as to how to use slowops, and some of the other items I see in the documentation for NYTProf.

Thanks

Ted

Thus, the problem remains as to how to use slowops, and some of the other items I see in the documentation for NYTProf.

They're documented under http://search.cpan.org/~timb/Devel-NYTProf-4.25/lib/Devel/NYTProf.pm#NYTPROF_ENVIRONMENT_VARIABLE, so like the example

  export NYTPROF=trace=2:start=init:file=/tmp/nytprof.out
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To see how ENV{NYTPROF} parses try http://cpansearch.perl.org/src/TIMB/Devel-NYTProf-4.25/lib/Devel/NYTProf/Core.pm

if (my $NYTPROF = $ENV{NYTPROF}) {
    for my $optval ( $NYTPROF =~ /((?:[^\\:]+|\\.)+)/g) {
        my ($opt, $val) = $optval =~ /^((?:[^\\=]+|\\.)+)=((?:[^\\=]+|
+\\.)+)\z/;
        s/\\(.)/$1/g for $opt, $val;
[download]

That's what I'd missed.

It ignores the path for the output file I'd specified, but that's OK, as I found it anyway.

Thanks

Ted