Re: [Xen-devel] Linux v3.12 + pv ticketlocks.

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Mon, Sep 09, 2013 at 11:39:52AM +0100, Ian Campbell wrote:
> On Fri, 2013-09-06 at 16:11 -0400, Konrad Rzeszutek Wilk wrote:
> > Hey,
> > 
> > Linux v3.12 (which is now in merge window phase) has the code for
> > making the spinlock use ticketlocks for everything. 
> 
> Congrats!

Thank you. Albeit most of the credit goes to folks you and me mentioned
and as well Raghavendra K T for tirelessly picking it up and
upstreaming it.

> 
> > Majority of that work was done by Jeremy Fitzhardinge and I would like
> > to thank him for doing this work. It had taken a year (or more) to actually
> 
> Way more that a year, wasn't it? This stuff has been floating around for
> 3 or 4 years or longer IIRC.

Wow. Time does not exist for me. Everything that has not yet been done
in my mind is "last year" :-)

> 
> BTW Attilio Rao did some upstreaming work and a bunch of measurement
> stuff too.

And a nice Wiki entry:

http://wiki.xen.org/wiki/Benchmarking_the_new_PV_ticketlock_implementation

and an awesome blog entry:
http://blog.xen.org/index.php/2012/05/11/benchmarking-the-new-pv-ticketlock-implementation/


> 
> Ian.
> 

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