NAME B::Stats - print optree statistics SYNOPSIS perl -MB::Stats myprog.pl # all perl -MO=Stats myprog.pl # compile-time only perl -MB::Stats[,OPTIONS] myprog.pl DESCRIPTION Print statistics for all generated ops. static analysis at compile-time, static analysis at end-time to include all runtime added modules, and dynamic analysis at run-time, as with a profiler. The purpose is to help you in your goal: no bloat; OPTIONS Options can be bundled: "-c,-e,-r" eq "-cer" -c *static* Do static analysis at compile-time. This does not include all run-time require packages. Invocation via -MO=Stats does this automatically. -e *end* Do static analysis at end-time. This is includes all run-time require packages. This calculates the heap space for the optree. -r *run* Do dynamic run-time analysis of all actually visited ops, similar to a profiler. Single ops can be called multiple times. Warning: Since perl v5.31.9 the -r option requires Opcodes to be pre-loaded. If this is not possible, it does not work anymore and is disabled. -a *all (default)* Same as -cer: static compile-time, end-time and dynamic run-time. -t *table* Tabular list of -c, -e and -r results. -u *summary* Short summary only, no op class. With -t only the final table(s). -F *Files* Prints included file names -x *fragmentation* NOT YET Calculates the optree *fragmentation*. 0.0 is perfect, 1.0 is very bad. A perfect optree has no null ops and every op->next is immediately next to the op. -f<op,...> *filter* NOT YET Filter for op names and classes. Only calculate the given ops, resp. op class. perl -MB::Stats,-fLOGOP,-fCOP,-fconcat myprog.pl -llogfile Print output only to this file. Default: STDERR perl -MB::Stats,-llog myprog.pl METHODS compile Static -c check at CHECK time. Triggered by -MO=Stats,-OPTS rcount ($opcode) Returns run-time count per op type. rcount_all() Returns an AV ref for all opcounts, indexed by opcode. reset_rcount() Resets to opcount array for all ops to 0 output ($count-hash, $ops, $name) General formatter output_runtime -r formatter. Prepares count hash from the runtime generated structure in XS and calls output(). output_table -t formatter Does not work together with -r LICENSE This module is available under the same licences as perl, the Artistic license and the GPL. SEE ALSO