Re: [Valgrind-developers] pldi paper

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

On Wed, 28 Mar 2007, Vince Weaver wrote:

> I've just released the simpoint tool:
>
>   http://www.csl.cornell.edu/~vince/projects/valsim/
>   I'm working right now on writing up all the results of the validation
>     effort.

Nice.  I'd be interested to see the paper when it's done.

You do things at the superblock level rather than the basic block level 
because Valgrind uses superblocks.  I think if you use 
--vex-guest-chase-thresh=0 it will not chase across branches and thus will 
effectively do things at a basic block level.  At least, that's what the 
comments for VexControl in VEX/pub/libvex.h seem to indicate -- Julian, is 
that right?  (You could write another paper comparing accuracy of BBs vs SBs
in SimPoint tools ;)

You might then want to increase --vex-guest-max-insns to allow BBs to be as 
big as possible (at least bigger than 50, which is the default maximum).

Nick