RE: [PATCH] eal/windows: set pthread affinity

[Idan Hackmon <idanhac@nvidia.com>]

> Subject: RE: [PATCH] eal/windows: set pthread affinity
> 
> > Subject: [PATCH] eal/windows: set pthread affinity
> >
> > External email: Use caution opening links or attachments
> >
> >
> > Sometimes OS tries to switch the core. So, bind the lcore thread to a
> > fixed core.
> > Implement affinity call on Windows similar to Linux.
> >
> > Signed-off-by: Qiao Liu <qiao.liu@intel.com>
> > Signed-off-by: Pallavi Kadam <pallavi.kadam@intel.com>
> > ---
> >  lib/eal/windows/eal.c | 4 ++++
> >  1 file changed, 4 insertions(+)
> >
> > diff --git a/lib/eal/windows/eal.c b/lib/eal/windows/eal.c index
> > 67db7f099a..ca3c41aaa7 100644
> > --- a/lib/eal/windows/eal.c
> > +++ b/lib/eal/windows/eal.c
> > @@ -422,6 +422,10 @@ rte_eal_init(int argc, char **argv)
> >                 /* create a thread for each lcore */
> >                 if (eal_thread_create(&lcore_config[i].thread_id) != 0)
> >                         rte_panic("Cannot create thread\n");
> > +               ret = pthread_setaffinity_np(lcore_config[i].thread_id,
> > +                       sizeof(rte_cpuset_t), &lcore_config[i].cpuset);
> > +               if (ret != 0)
> > +                       RTE_LOG(DEBUG, EAL, "Cannot set affinity\n");
> >         }
> >
> >         /* Initialize services so drivers can register services during
> > probe. */
> > --
> > 2.31.1.windows.1
> 
> Acked-by: Tal Shnaiderman <talshn@nvidia.com>

Tested-by: Idan Hackmon <idanhac@nvidia.com>