[Click] Large argument lists

[Eddie Kohler]

Harald,

I guess a couple people have run in to this limit.  I thought it was a string 
length problem, but now I think maybe it is a bug.  Can you send a URL (not an 
attachment) to a sample user elvel config?  Thank you.

E


Harald Schiöberg wrote:
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> Hi,
> 
> I tried to create a DirectIPLookup element with a large (20000 entries)
> static routing table by directly putting 20000 statements in the click
> configuration.
> 
> The Element had only ~4000 routes afterwards (according the "table"
> handler, which seems to reflect the forwarding behavior )
> I assume that there is some limit to the argument length of elements.
> 
> a) How big is this limit? Where is it defined? Can it be extended?
> I'm too stupid to find out how data is passed to confparse.cc, seems to
> happen earlier.
> 
> b) What do you think about issuing a warning when this limit is reached
> instead of silently dropping the rest of the argument list? Caused me
> minor headache.
> 
> best,
> 	Harald
> 
> 
> BTW, with something like:
>  DirectIPLookup(4k entries) ->
>  GetIPAddr(12) ->
>  DirectIPLookup(4k entries)
> userlevel click consumed ~20% CPU while filtering traces at
> 250MBytes/sec. impressive, thank you.
> 
> 
> - --
> Harald Schiöberg
> Technische Universität Berlin | T-Laboratories | FG INET
> www: http://www.net.t-labs.tu-berlin.de
> Phone: +49-(0)30-8353-58476 | Fax: +49-(0)391 534 783 47
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