Subject: Re: [PATCH RFC v8 02/11] vhost: use batched get_vq_desc version

From: "Michael S. Tsirkin" <[email-masked]>
Date: Fri, 10 Jul 2020 01:58:21 -0400

On Fri, Jul 10, 2020 at 07:39:26AM +0200, Eugenio Perez Martin wrote:
> > > How about playing with the batch size? Make it a mod parameter instead
> > > of the hard coded 64, and measure for all values 1 to 64 ...
> >
> >
> > Right, according to the test result, 64 seems to be too aggressive in
> > the case of TX.
> >
> 
> Got it, thanks both!

In particular I wonder whether with batch size 1
we get same performance as without batching
(would indicate 64 is too aggressive)
or not (would indicate one of the code changes
affects performance in an unexpected way).

-- 
MST