[Perlfect-search] time

[Boyd Pearson]

when i turn on the timing function i get a 500 error in the browser, and 
the following error in the error_log

Can't locate Time/HiRes.pm in @INC (@INC contains: 
/usr/lib/perl5/5.6.0/i386-linux /usr/lib/perl5/5.6.0 
/usr/lib/perl5/site_perl/5.6.0/i386-linux /usr/lib/perl5/site_perl/5.6.0 
/usr/lib/perl5/site_perl .) at search.pl line 25.

any other way to try the timing (curious only not vital)