Hm. On my Win64 system the difference between Perl and grep is much smaller. 

[15:00:05.53] c:\test>perl -nle"/234/ && ++$c }{ print $c" 1GB.dat
6791

[15:00:17.31] 
##     11.78 seconds

[15:01:05.67] c:\test>grep -c -F 234 1GB.dat
6791

[15:01:14.28] c:\test>
##      8.61 seconds

[download]

I don't see much wrong with your benchmark, so I wonder if that means your Perl is much slower than mine or my grep slower than yours?

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re^3: search array for closest lower and higher number from another array by BrowserUk
in thread search array for closest lower and higher number from another array by bigbot

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