Re: FYI: Faster AccessController stack decoder

[David Daney <ddaney at avtrex dot com>]

Gary Benson wrote:
> Tom Tromey wrote:
>
> > > > > > > "Gary" == Gary Benson <gbenson@redhat.com> writes:
> >
> > Gary> This commit adds a custom stack decoder that mirrors this
> > Gary> logic such that only the frames which are used will be
> > Gary> decoded.  I've been using Tomcat as a benchmark, and this
> > Gary> commit improves our performance from 1800 to 2100 requests
> > Gary> per second.
> >
> > Nice job.
>
>
> Thank you.
>
>
> > Gary> Sadly this is nowhere near the 5800 we do without a security
> > Gary> manager :/
> >
> > Bleah.
>
>
> Indeed.  I have a couple of other things that might speed it up,
> but not by loads since the majority of the performance hit is in
> the unwinder.

Has anyone ever profiled the unwinder?

That might be a fruitful thing to do.  I would seem that your Tomcat 
benchmark is bound by the unwinder.  Any improvement in the unwinder 
would result in a similar improvement to your benchmark.

David Daney.