[dpdk-dev] [PATCH v2] eal: add new prefetch write variants

Van Haaren, Harry harry.van.haaren at intel.com
Thu Oct 8 10:39:05 CEST 2020


> -----Original Message-----
> From: Van Haaren, Harry
> Sent: Thursday, October 8, 2020 9:34 AM
> To: David Marchand <david.marchand at redhat.com>; Richardson, Bruce
> <bruce.richardson at intel.com>; Ananyev, Konstantin
> <konstantin.ananyev at intel.com>; Jerin Jacob Kollanukkaran <jerinj at marvell.com>;
> Ruifeng Wang (Arm Technology China) <ruifeng.wang at arm.com>; Jan Viktorin
> <viktorin at rehivetech.com>; David Christensen <drc at linux.vnet.ibm.com>;
> Honnappa Nagarahalli <Honnappa.Nagarahalli at arm.com>
> Cc: dev <dev at dpdk.org>; Pavan Nikhilesh <pbhagavatula at marvell.com>
> Subject: RE: [dpdk-dev] [PATCH v2] eal: add new prefetch write variants
> 
> > -----Original Message-----
> > From: David Marchand <david.marchand at redhat.com>
> > Sent: Thursday, October 8, 2020 8:43 AM
> > To: Van Haaren, Harry <harry.van.haaren at intel.com>; Richardson, Bruce
> > <bruce.richardson at intel.com>; Ananyev, Konstantin
> > <konstantin.ananyev at intel.com>; Jerin Jacob Kollanukkaran
> <jerinj at marvell.com>;
> > Ruifeng Wang (Arm Technology China) <ruifeng.wang at arm.com>; Jan Viktorin
> > <viktorin at rehivetech.com>; David Christensen <drc at linux.vnet.ibm.com>;
> > Honnappa Nagarahalli <Honnappa.Nagarahalli at arm.com>
> > Cc: dev <dev at dpdk.org>; Pavan Nikhilesh <pbhagavatula at marvell.com>
> > Subject: Re: [dpdk-dev] [PATCH v2] eal: add new prefetch write variants
> >
> > On Mon, Sep 14, 2020 at 5:09 PM Harry van Haaren
> > <harry.van.haaren at intel.com> wrote:
> > >
> > > This commit adds a new rte_prefetch0_write() variants, suggesting to the
> > > compiler to use a prefetch instruction with intention to write. As a
> > > compiler builtin, the compiler can choose based on compilation target
> > > what the best implementation for this instruction is.
> > >
> > > Signed-off-by: Harry van Haaren <harry.van.haaren at intel.com>
> >
> > No review, copying arch maintainers.
> >
> > --
> > David Marchand
> 
> Hey All,
> 
> Actually Pavan provided some feedback to add prefetch1 and prefetch2 variants:
> https://mails.dpdk.org/archives/dev/2020-September/thread.html#180501
> 
> I can push a v3 with those changes later today, will CC folks here.
> 
> Thanks, -Harry

... apologies - David you're right - the v2 on list already has those changes: http://patches.dpdk.org/patch/77632/ reviews welcome!



More information about the dev mailing list