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Re: [sip-ops] [dispatch] SIP-CLF: Results on ASCII vs. binary representation

Simon Perreault <simon.perreault@viagenie.ca> Thu, 30 April 2009 20:53 UTC

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Date: Thu, 30 Apr 2009 16:54:35 -0400
From: Simon Perreault <simon.perreault@viagenie.ca>
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To: "Vijay K. Gurbani" <vkg@alcatel-lucent.com>
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Cc: sip-ops@ietf.org, dispatch@ietf.org
Subject: Re: [sip-ops] [dispatch] SIP-CLF: Results on ASCII vs. binary representation
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Vijay K. Gurbani wrote, on 29/04/09 10:32 AM:
> Time taken to seek to the last record of the CLF file:
>   Binary CLF:   3.08s
>   ASCII CLF:   16.55s (using perl v5.6.1)
>                42.92s (using perl v.5.8 and v5.10)

On my system I have Perl 5.10.0.

Initially:  26.33s

By eliminating the regexp loop: 16.66s (1.58x faster)

while (<LOGFILE>) {
    chomp;
    @fields = /[^" ]+|".*?"/g;
    ...

And I'm surprised nobody mentioned already that C would be MUCH faster than Perl.

I think that speed is not an issue in text vs binary.

Simon
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