[PATCH v3] Improve the performance of --num-threads -d 31

[Minfei Huang]

On 03/07/16 at 08:16am, Minoru Usui wrote:
> Hi, Minfei
> > >
> > > Hi, Wenjian.
> > >
> > > Since your patch applied Minoru Usui's draft patch, I have vierified it.
> > > And it works well under 4T memory.
> > >
> > > applied makedumpfile with option -d 31
> > > real    3m48.681s
> > >
> > > applied makedumpfile with option -d 31 --num-threads 32
> > > real    3m3.533s
> > >
> > > original makedumpfile with option -d 31
> > > real    3m57.163s
> > >
> > > Now with or without option --num-thread, it takes almost same time.
> > 
> > Thank you for your test on big memory machine.
> > I am relieved to see your test results.
> 
> I'm sorry, I may be misunderstood.
> Is above result is Zhou's v3 patch or v2 + my patch?

I have applied Zhou's v3 patch.

> 
> If above result is Zhou's v3 patch, could you test v2 + my patch?

Your patch fails to be applied based on Zhou's v2 patch. There is a rej
file to be generated during applying.

Thanks
Minfei