[dpdk-dev] [PATCH] rte_power: fix sample vm_power_mgr not work with Haswell cpus
De Lara Guarch, Pablo
pablo.de.lara.guarch at intel.com
Thu Aug 6 12:27:21 CEST 2015
> -----Original Message-----
> From: Thomas Monjalon [mailto:thomas.monjalon at 6wind.com]
> Sent: Monday, August 03, 2015 4:13 PM
> To: Carew, Alan; De Lara Guarch, Pablo
> Cc: dev at dpdk.org; Liu, Yong
> Subject: Re: [dpdk-dev] [PATCH] rte_power: fix sample vm_power_mgr not
> work with Haswell cpus
> 2015-07-10 14:24, Thomas Monjalon:
> > Alan, Pablo, any comment?
> > By the way, we need a maintainer for rte_power.
> > 2015-07-07 16:36, Yong Liu:
> > > From: Marvin Liu <yong.liu at intel.com>
> > >
> > > Two socket Haswell cpus on cottonwoodPass have 72 cores totally. And
> > > number oversize the default value of maximum core number 64.
> > >
> > > Total number of channels should also increased for match core number.
> > >
> > > Signed-off-by: Marvin Liu <yong.liu at intel.com>
Allowing that change may end up in an undefined behaviour if user uses core 64 or more.
Will send an alternative fix, with a warning instead of an error, so user still can use the app on a machine with more than 64 cores, as long as no cores over 63 are used.
More information about the dev