Re: [Valgrind-users] Switching execution from valgrind to native

[Nicholas N. <nj...@cs...>]

On Thu, 5 Oct 2006, Mohit Tiwari wrote:

> I notice that running the floating point benchmarks (like ammp) takes a
> substantial time. (ammp took ~15min natively and 1.5 hrs using nulgrind)
> With Memcheck's ~50X overhead, it might take this 12.5 hrs to finish. Is
> there a way I can switch between native and valgrind executions of a
> program, so I could use a phase analyzing software like Simpoint to simulate
> only certain instructions.

Depends which tool you're using -- I think Callgrind might have some support 
for this.  The other tools don't.

I have found that the 'reference' data sets for SPEC are too big to 
benchmark, but the 'train' ones are doable, ie. they take less than a day 
for the full suite.

Nick