Re: Tcl faster than Perl/Python...but only with tricks...

Mark Janssen wrote:

Are you sure gets and while are slow? At least a part of the result the
time command is giving is spent in intialization of the Tcl
interpreter. A better way to test the performance of the Tcl code would
be to use the [time] command to determine the time.

This would be the Tcl-way to test performance, of course. But since the
Perl/Python Versions also have to load the their interpreter, I think it
would be not fair to skip this step for Tcl. But to check that, I just
checked an empty Tcl-Script with the same Method (four runs, average of the
last three), which shows, that skipping the tclsh-loading saves only
0.015s.

I think, the biggest "mistake" I made was not to take the while/gets into a
proc, as mentioned by Uwe Klein and George Petasis. That improves
performance because of bytecode compilation.

Regards
Stephan

.

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