Devel::NYTProf is a powerful feature-rich perl source code profiler. {
} o Performs per-line statement profiling for fine detail {
} o Performs per-subroutine statement profiling for overview {
} o Performs per-block statement profiling (the first profiler to do so) {
} o Accounts correctly for time spent after calls return {
} o Performs inclusive and exclusive timing of subroutines {
} o Subroutine times are per calling location (a powerful feature) {
} o Can profile compile-time activity, just run-time, or just END time {
} o Uses novel techniques for efficient profiling {
} o Sub-microsecond (100ns) resolution on systems with clock_gettime() {
} o Very fast - the fastest statement and subroutine profilers for perl {
} o Handles applications that fork, with no performance cost {
} o Immune from noise caused by profiling overheads and I/O {
} o Program being profiled can stop/start the profiler {
} o Generates richly annotated and cross-linked html reports {
} o Trivial to use with mod_perl - add one line to httpd.conf {
} o Includes an extensive test suite {
} o Tested on very large codebases {
} {
NYTProf} is effectively two profilers in one: a statement profiler, and a subroutine profiler.

WWW: https://metacpan.org/pod/Devel::NYTProf
