Beefy Boxes and Bandwidth Generously Provided by pair Networks
Welcome to the Monastery
 
PerlMonks  

RE: RE: From one beginner to others . . .

by greenhorn (Sexton)
on Jul 16, 2000 at 02:08 UTC ( #22737=note: print w/replies, xml ) Need Help??


in reply to (Ovid) RE: From one beginner to others . . .
in thread From one beginner to others . . .

Hmm. And just when I thought it was safe to go back into the water, I added one more thing into the mix. Both subroutines contain: while ( <FH> ) { .. and below each such line, I added: next if $_ !~ /mapi/io; ("MAPI" is the string being tested for.)

It's the crudest possible test, of course. But why bother with further processing if the string doesn't appear anywhere in the current line?

With that statement added, there was a considerable difference in the benchmarked results:

Benchmark: timing 30 iterations of REGEXP, SPLIT... REGEXP: 14 wallclock secs (14.35 usr + 0.19 sys = 14.54 CPU) SPLIT: 17 wallclock secs (16.01 usr + 0.28 sys = 16.29 CPU)
I should have read my own pep-talk about trying stuff...

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://22737]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others meditating upon the Monastery: (4)
As of 2022-09-26 08:55 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    I prefer my indexes to start at:




    Results (117 votes). Check out past polls.

    Notices?