Re: [Valgrind-developers] tc19_shadowmem is running slowly with DRD

[Bart V. A. <bar...@gm...>]

On Fri, Apr 24, 2009 at 3:30 AM, Nicholas Nethercote
<n.n...@gm...> wrote:
> After updating, I get these results:
>
> - drd/tests/tc19_shadowmem by itself takes 17s
> - 'make regtest' takes 4:51 minutes
> - '/usr/inb/perl tests/vg_regtest ...' takes 5:08 minutes
>
> 5 minutes to 17 seconds is a big improvement!  Thanks for looking into it.

Update: after another optimization the command "time perl
tests/vg_regtest drd/tests/tc19_shadowmem" now completes in about
three seconds (trunk revision 9629). Performance of DRD for other
programs is now improved too, but only a few percent. As I already
wrote, the tc19_shadowmem test program is an exception.

Bart.