[MODERATED] Re: [PATCH v5 09/11] TAAv5 9

On Mon, 7 Oct 2019, speck for Pawan Gupta wrote:

> > > Transactional Synchronization Extensions (TSX) is an extension to the
> > > x86 instruction set architecture (ISA) that adds Hardware Transactional
> > > Memory (HTM) support. Changing TSX state currently requires a reboot.
> > > This may not be desirable when rebooting imposes a huge penalty.
> > 
> > This is still missing a real world justification for the added
> > complexity.  Don't production users typically know at boot time whether
> > they plan to use TSX?
> 
> I am not sure about this.

We finally got a clearance to talk to one of the few potential heavy users 
of TSX. We should know more about the usecase and their expectations 
tomorrow. Either myself or Michal Hocko can then send an update to speck@.

Thanks,

-- 
Jiri Kosina
SUSE Labs