[Click] Profiling the performance of an element.

[Archit Gupta]

Till now, I have tested the code in userlevel click. I am not aware of the
difficulty in running the code as a kernel module. Is there any difference
in the element code in userlevel or linux module? Or is it transparent from
a element writer point of view? I have not used any STL in the c++ code.

Related to performance, I am getting "g++: -pg and -fomit-frame-pointer are
incompatible" when I try to compile with
./configure CFLAGS=-pg CXXFLAGS=-pg CPPFLAGS=-pg

I tried "grepping" for the -fomit-frame-pointer in the distribution
directory but I couldn't find it :(
Is there a way to remove an offending flag while configuring?

Sorry for the deluge of the questions.
Thanks and regards,

Archit

On 10/22/07, Beyers Cronje <bcronje at gmail.com> wrote:
>
> One way would be to use:
>
> CycleCountAccum<http://www.read.cs.ucla.edu/click/elements/cyclecountaccum> collects
> differences in cycle counters   PerfCountAccum<http://www.read.cs.ucla.edu/click/elements/perfcountaccum> collects
> differences in Pentium Pro performance metrics   PerfCountInfo<http://www.read.cs.ucla.edu/click/elements/perfcountinfo> turn
> on Pentium Pro performance metrics   RoundTripCycleCount<http://www.read.cs.ucla.edu/click/elements/roundtripcyclecount> measures
> round trip cycles on a push or pull path   SetCycleCount<http://www.read.cs.ucla.edu/click/elements/setcyclecount> stores
> cycle count in annotation   SetPerfCount<http://www.read.cs.ucla.edu/click/elements/setperfcount> stores
> Pentium Pro performance metric in annotation
> See http://www.read.cs.ucla.edu/click/elements#counters
>
> These are only available in the linuxmodule package.
>
> On 10/23/07, Archit Gupta <archit at cs.wisc.edu> wrote:
>
> > Hi,
> >
> > I have written an element which processes every packet. I would now
> > like to profile the performance of the element. I suppose gprof would
> > be useful here. I would be interested in knowing what tools/techniques
> > people use to profile their elements/code.
> >
> > Thanks,
> >
> > Archit
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> > click at amsterdam.lcs.mit.edu
> > https://amsterdam.lcs.mit.edu/mailman/listinfo/click
> >
>
>