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Re: Re: Re: Re: Re: Re: string manipulation

by extremely (Priest)
on Mar 30, 2001 at 04:23 UTC ( #68249=note: print w/replies, xml ) Need Help??


in reply to Re: Re: Re: Re: Re: string manipulation
in thread string manipulation

Your test strings don't have any '-' hyphens in them. =) And you change assignment forms between the two subs which honestly shouldn't have much effect but is still questionable practice when benchmarking since you want the code identical in nature except for the key point you are testing...

Also, since the $data is set in the sub it will be reset every pass. As well, you can just set up the benchmark like this and avoid having perl eval a sub call in a string:

timethese ( $count, { 'Method One S' => sub { my $data = 'foo-bar-baz'; $data =~ s/-/_/g; } 'Method Two TR' => sub { my $data = 'foo-bar-baz'; $data =~ tr/-/_/; } } );

Not a big deal but it may save you some typing in the future. Your way has the benefit of being easy to run the subs once and test their output, tho...

BTW, I moronically goofed my test string too... =)

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Discipulus manual work: i just tell the same to my boss: every time the quick solution is to assign some manual data entry task to my group.. because we have not direct access to many databases here..
[LanX]: point is: in high speed trade each bank has to remember what he has to get from the others... so dresdner got billed for losses but couldn't claim gains
Discipulus is this the IT?
[Corion]: Discipulus: Well, in many cases it doesn't make sense to build an interface and complicated program just to enter 20 rows into a database ;) But yes, automating data imports should pay off in the long run
[LanX]: Choroba: this happened before I joined, was still in uni, but my boss was summoned to the CEO of the second biggest German bank at that time and could only say " I told them its not ready" ;)
[LanX]: memories....I missed my connection while chatting
[Discipulus]: in this case Corion we are speaking about software licensing: evry year or two we must rescan the whole ced to produce an excel report, while at every activation / disactivation we update a black box DB: i said that i a week i can produce the perl to..
[Discipulus]: rend out the xls IF i have access to the DB

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