Wireshark-dev: Re: [Wireshark-dev] speed optimizations

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From: "Didier" <dgautheron@xxxxxxxx>
Date: Fri, 1 Nov 2013 12:52:10 +0100
Hi,

On Thu, 31 Oct 2013 22:20:50 +0100, Anders Broman wrote
> > I have a very rough first patch from our version working with current svn.
> Sounds interesting, why not attach it to a bug report even in it's 
> rough state? I had some vauge idea to use the "ignore packet flag" 

cf https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=9366
need a lot of cleaning but it works for some meaning of work...

> > call_dissector(next_dissector)
> 
> Why do we need to know if a dissector has sub dissectors? What if we 
> kept a Gslist of all protocol handles in a
> frame, much like the "protocols string" but always populated on the 
> first pass one could then match (some) filters
> against that list before deciding if the frame should be dissected 
> or not.
IIRC the list is too big but it's a long time ago and it could be ok now. 
> 
> >When compiling wireshark it's also extract which dissectors don't call
> >subdissectors or only call them via wireshark API
> 
> If this is similar to a previous patch it requres changes to many 
> dissectors.
> 
They was a lot of thing in this patch :)

Regards
Didier