[Click] SimpleQueue Performance issue

[Beyers Cronje]

I agree with Roman, that is the expected behaviour. One thing to add,
depending on your requirements you might not need to uniquefy the packet.
Setting packet annotations do not require a unique packet, either work
directly on the packet itself or clone it and set the clone's annotation.

Beyers

On Wed, Dec 9, 2009 at 5:50 PM, Roman Chertov <rchertov at cs.ucsb.edu> wrote:

> remi.clavier at orange-ftgroup.com wrote:
> >
> > I have not anderstant exactly how Simple Queue works.
> > For a specific use, I patch SimpleQueue to add an annotation when the
> > length is greather tha a given value using the packet->uniqueify()
> > function to have a new packet to annotate .When the ModifiedQueue is
> > empty, nothing special happends.
> >
> > But when the Queue contains Packets, the CPU usage grows very quickly
> > and go to 100% when the numbre of packets in the queue becomes higher;
> > When the Queue becomes empty, the CPU usage decrease slowly to a normal
> > value
> >
> > I's a normal behavior for a Simple Queue or is this problem related to
> > my patch?
>
> This is the expected behavior as the router is busy processing packets.
>  If there are no packets to process, then there is no need to consume
> the CPU resources.
>
> Roman
>
> >
> >
> > I use click 1.7 with multithread option.
> >
> > Help will be welcome
> >
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> > click at amsterdam.lcs.mit.edu
> > https://amsterdam.lcs.mit.edu/mailman/listinfo/click
> >
>
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