From: "Ruifeng Wang (Arm Technology China)" <Ruifeng.Wang@arm.com>
To: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>,
"dev@dpdk.org" <dev@dpdk.org>
Cc: "thomas@monjalon.net" <thomas@monjalon.net>,
"jerinj@marvell.com" <jerinj@marvell.com>,
"hemant.agrawal@nxp.com" <hemant.agrawal@nxp.com>,
"bruce.richardson@intel.com" <bruce.richardson@intel.com>,
"chaozhu@linux.vnet.ibm.com" <chaozhu@linux.vnet.ibm.com>,
nd <nd@arm.com>,
"tomaszx.kulasek@intel.com" <tomaszx.kulasek@intel.com>,
nd <nd@arm.com>, nd <nd@arm.com>
Subject: Re: [dpdk-dev] [PATCH v1] examples/l3fwd: enable hash multi lookup for ARM
Date: Thu, 3 Jan 2019 01:14:03 +0000 [thread overview]
Message-ID: <AM6PR08MB378215EA6B9BF2AAF08CDA689E8D0@AM6PR08MB3782.eurprd08.prod.outlook.com> (raw)
In-Reply-To: <DB7PR08MB3674ADC301D0048661D47EF7988C0@DB7PR08MB3674.eurprd08.prod.outlook.com>
Hi Honnappa,
> -----Original Message-----
> From: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>
> Sent: Thursday, January 3, 2019 2:23
> To: Ruifeng Wang (Arm Technology China) <Ruifeng.Wang@arm.com>;
> dev@dpdk.org
> Cc: thomas@monjalon.net; jerinj@marvell.com; hemant.agrawal@nxp.com;
> bruce.richardson@intel.com; chaozhu@linux.vnet.ibm.com; nd
> <nd@arm.com>; Ruifeng Wang (Arm Technology China)
> <Ruifeng.Wang@arm.com>; tomaszx.kulasek@intel.com; nd <nd@arm.com>
> Subject: RE: [PATCH v1] examples/l3fwd: enable hash multi lookup for ARM
>
> Thanks Ruifeng for the patch. I have one question inline.
>
> Jerin/Hemant,
> It would be good if you could test this on your platforms, since this is
> being made default.
>
> Thanks,
> Honnappa
>
> > -----Original Message-----
> > From: Ruifeng Wang <ruifeng.wang@arm.com>
> > Sent: Tuesday, January 1, 2019 11:28 PM
> > To: dev@dpdk.org
> > Cc: thomas@monjalon.net; jerinj@marvell.com;
> hemant.agrawal@nxp.com;
> > bruce.richardson@intel.com; chaozhu@linux.vnet.ibm.com; Honnappa
> > Nagarahalli <Honnappa.Nagarahalli@arm.com>; nd <nd@arm.com>;
> Ruifeng
> > Wang (Arm Technology China) <Ruifeng.Wang@arm.com>;
> > tomaszx.kulasek@intel.com
> > Subject: [PATCH v1] examples/l3fwd: enable hash multi lookup for ARM
> >
> > Compile option for hash_multi_lookup was broken, and caused feature
> > cannot be enabled on Arm.
> > This patch sets hash_multi_lookup method as default, and sequential
> > lookup becomes optional.
> >
> > In test of 8192 flows with 128-byte packets, throughput increased by
> > 25.6% after enabling hash_multi_lookup.
> >
> I assume these are lookup-hit numbers. Do you have look-up miss numbers?
>
Yes, lookup-hit had 25.6% gain.
In lookup-miss tests, throughput had over 33% gain.
> > Fixes: 52c97adc1f0f ("examples/l3fwd: fix exact match performance")
> > Cc: tomaszx.kulasek@intel.com
> >
> > Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
> > Reviewed-by: Gavin Hu <gavin.hu@arm.com>
> > Reviewed-by: Phil Yang <phil.yang@arm.com>
> > Tested-by: Ruifeng Wang <ruifeng.wang@arm.com>
> > ---
> > examples/l3fwd/l3fwd.h | 4 ----
> > 1 file changed, 4 deletions(-)
> >
> > diff --git a/examples/l3fwd/l3fwd.h b/examples/l3fwd/l3fwd.h index
> > c962deac3..063b80018 100644
> > --- a/examples/l3fwd/l3fwd.h
> > +++ b/examples/l3fwd/l3fwd.h
> > @@ -11,10 +11,6 @@
> >
> > #define RTE_LOGTYPE_L3FWD RTE_LOGTYPE_USER1
> >
> > -#if !defined(NO_HASH_MULTI_LOOKUP) &&
> > defined(RTE_MACHINE_CPUFLAG_NEON) -#define
> NO_HASH_MULTI_LOOKUP 1
> > -#endif
> > -
> > #define MAX_PKT_BURST 32
> > #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
> >
> > --
> > 2.17.1
next prev parent reply other threads:[~2019-01-03 1:14 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-02 5:28 Ruifeng Wang
2019-01-02 18:23 ` Honnappa Nagarahalli
2019-01-03 1:14 ` Ruifeng Wang (Arm Technology China) [this message]
2019-01-03 8:04 ` Hemant Agrawal
2019-01-03 10:12 ` Ruifeng Wang (Arm Technology China)
2019-01-03 3:34 ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
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