Re^5: Efficient bit-twiddling in Perl.

in reply to Re^4: Efficient bit-twiddling in Perl.
in thread Efficient bit-twiddling in Perl.

tables generated
sample data generated
Shift&and took: 0.000000283640 seconds
  Lookup  took: 0.000000553529 seconds
  Lookup3 took: 0.000000308301 seconds
  Lookup4 took: 0.000000435056 seconds
  Lookup5 took: 0.000000487484 seconds
  Lookup6 took: 0.000000454496 seconds
  Lookup7 took: 0.000000476669 seconds

Linux 3.4.28-2.20-desktop [openSUSE 12.2 (Mantis)]
x86_64 Xeon(R) CPU E5-1650 0 @ 3.20GHz/1200(12) x86_64  16009 Mb

This is perl 5, version 16, subversion 2 (v5.16.2) built for x86_64-li
+nux-ld
[download]

I think that proves my point in Re^3: Efficient bit-twiddling in Perl.

Enjoy, Have FUN! H.Merijn

Comment on Re^5: Efficient bit-twiddling in Perl. Download Code

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Re^6: Efficient bit-twiddling in Perl. by BrowserUk (Patriarch) on Mar 01, 2013 at 14:49 UTC
I think that proves my point in Re^3: Efficient bit-twiddling in Perl. I am stunned by the 20% gain you get, and wonder if that would differ per perl version and/or architecture. It absolutely will, but as I said in the OP, this is for me, on my hardware. Not an exemplar for anyone else. With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' 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.	[reply]

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Re^6: Efficient bit-twiddling in Perl.
by BrowserUk (Patriarch) on Mar 01, 2013 at 14:49 UTC

I think that proves my point in Re^3: Efficient bit-twiddling in Perl.
I am stunned by the 20% gain you get, and wonder if that would differ per perl version and/or architecture.

It absolutely will, but as I said in the OP, this is for me, on my hardware. Not an exemplar for anyone else.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'

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.

[reply]

In Section Seekers of Perl Wisdom