On Mon, Sep 03, 2018 at 02:25:50PM +0200, Andrew Jones wrote:
> On Mon, Sep 03, 2018 at 12:58:45PM +0200, Christoffer Dall wrote:
> > The current MAX_SMP check launches QEMU for every value of the SMP
> > parameter to check if the SMP parameter based on the native is higher
> > than the QEMU maximum supported configuration.
> >
> > On something like a TX2, which has 224 threads, this takes a very long
> > time where the test script just sits there with no output.
> >
> > Reduce the wait time by taking the log2 of MAX_SMP in each iteration of
> > the loop instead.
> >
> > Signed-off-by: Christoffer Dall <christoffer.dall@xxxxxxx>
> > ---
> > scripts/runtime.bash | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/scripts/runtime.bash b/scripts/runtime.bash
> > index a31ae91..1e2c288 100644
> > --- a/scripts/runtime.bash
> > +++ b/scripts/runtime.bash
> > @@ -140,5 +140,5 @@ function run()
> > # just remove it...
> > while $RUNTIME_arch_run _NO_FILE_4Uhere_ -smp $MAX_SMP \
> > |& grep -qi 'exceeds max CPUs'; do
> > - ((--MAX_SMP))
> > + MAX_SMP=$((MAX_SMP >> 1))
> > done
> > --
> > 2.7.4
> >
>
> Reviewed-by: Andrew Jones <drjones@xxxxxxxxxx>
>
>
Paolo, if you're ok with this patch, could you apply it?
(I failed to CC you the first time around, only had the kvm list.)
Thanks,
Christoffer
