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From: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>
To: David Marchand <david.marchand@redhat.com>
Cc: dev <dev@dpdk.org>,
	Jerin Jacob Kollanukkaran <jerinj@marvell.com>,
	"Ruifeng Wang (Arm Technology China)" <ruifeng.wang@arm.com>,
	"Medvedkin, Vladimir" <vladimir.medvedkin@intel.com>,
	Thomas Monjalon <thomas@monjalon.net>,
	Ray Kinsella <mdr@ashroe.eu>,
	"Richardson, Bruce" <bruce.richardson@intel.com>
Subject: Re: [dpdk-dev] [PATCH v3 00/14] acl: introduce AVX512 classify methods
Date: Tue, 6 Oct 2020 16:07:48 +0000
Message-ID: <BYAPR11MB330112E64D1828F66206FA7F9A0D0@BYAPR11MB3301.namprd11.prod.outlook.com> (raw)
In-Reply-To: <CAJFAV8xOTc-jZaWuMYMC8LkGj=9ZT6niscTuXW8mKEMc+zvUoQ@mail.gmail.com>


> 
> On Mon, Oct 5, 2020 at 9:44 PM Konstantin Ananyev
> <konstantin.ananyev@intel.com> wrote:
> >
> > These patch series introduce support of AVX512 specific classify
> > implementation for ACL library.
> > It adds two new algorithms:
> >  - RTE_ACL_CLASSIFY_AVX512X16 - can process up to 16 flows in parallel.
> >    It uses 256-bit width instructions/registers only
> >    (to avoid frequency level change).
> >    On my SKX box test-acl shows ~15-30% improvement
> >    (depending on rule-set and input burst size)
> >    when switching from AVX2 to AVX512X16 classify algorithms.
> >  - RTE_ACL_CLASSIFY_AVX512X32 - can process up to 32 flows in parallel.
> >    It uses 512-bit width instructions/registers and provides higher
> >    performance then AVX512X16, but can cause frequency level change.
> >    On my SKX box test-acl shows ~50-70% improvement
> >    (depending on rule-set and input burst size)
> >    when switching from AVX2 to AVX512X32 classify algorithms.
> >    ICX and CLX testing showed similar level of speedup.
> >
> > Current AVX512 classify implementation is only supported on x86_64.
> > Note that this series introduce a formal ABI incompatibility
> 
> The only API change I can see is in rte_acl_classify_alg() new error
> code but I don't think we need an announcement for this.
> As for ABI, we are breaking it in this release, so I see no pb.

Cool, I just wanted to underline that patch #3:
https://patches.dpdk.org/patch/79786/
is a formal ABI breakage.

> 
> 
> > with previous versions of ACL library.
> >
> > v2 -> v3:
> >   Fix checkpatch warnings
> >   Split AVX512 algorithm into two and deduplicate common code
> 
> Patch 7 still references a RTE_MACHINE_CPUFLAG flag.
> Can you rework now that those flags have been dropped?
> 

Should be fixed in v4:
https://patches.dpdk.org/project/dpdk/list/?series=12721

One more thing to mention - this series has a dependency on Vladimir's patch:
https://patches.dpdk.org/patch/79310/ ("eal/x86: introduce AVX 512-bit type"),
so CI/travis would still report an error.

Thanks
Konstantin


  reply index

Thread overview: 70+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-07 16:28 [dpdk-dev] [PATCH 20.11 0/7] acl: introduce AVX512 classify method Konstantin Ananyev
2020-08-07 16:28 ` [dpdk-dev] [PATCH 20.11 1/7] acl: fix x86 build when compiler doesn't support AVX2 Konstantin Ananyev
2020-08-07 16:28 ` [dpdk-dev] [PATCH 20.11 2/7] app/acl: few small improvements Konstantin Ananyev
2020-08-07 16:28 ` [dpdk-dev] [PATCH 20.11 3/7] acl: remove of unused enum value Konstantin Ananyev
2020-08-07 16:28 ` [dpdk-dev] [PATCH 20.11 4/7] acl: add infrastructure to support AVX512 classify Konstantin Ananyev
2020-08-07 16:28 ` [dpdk-dev] [PATCH 20.11 5/7] app/acl: add AVX512 classify support Konstantin Ananyev
2020-08-07 16:28 ` [dpdk-dev] [PATCH 20.11 6/7] acl: introduce AVX512 classify implementation Konstantin Ananyev
2020-08-07 16:28 ` [dpdk-dev] [PATCH 20.11 7/7] acl: enhance " Konstantin Ananyev
2020-09-15 16:50 ` [dpdk-dev] [PATCH v2 00/12] acl: introduce AVX512 classify method Konstantin Ananyev
2020-09-15 16:50   ` [dpdk-dev] [PATCH v2 01/12] acl: fix x86 build when compiler doesn't support AVX2 Konstantin Ananyev
2020-09-15 16:50   ` [dpdk-dev] [PATCH v2 02/12] doc: fix mixing classify methods in ACL guide Konstantin Ananyev
2020-09-15 16:50   ` [dpdk-dev] [PATCH v2 03/12] acl: remove of unused enum value Konstantin Ananyev
2020-09-27  3:27     ` Ruifeng Wang
2020-09-15 16:50   ` [dpdk-dev] [PATCH v2 04/12] acl: remove library constructor Konstantin Ananyev
2020-09-15 16:50   ` [dpdk-dev] [PATCH v2 05/12] app/acl: few small improvements Konstantin Ananyev
2020-09-15 16:50   ` [dpdk-dev] [PATCH v2 06/12] test/acl: expand classify test coverage Konstantin Ananyev
2020-09-15 16:50   ` [dpdk-dev] [PATCH v2 07/12] acl: add infrastructure to support AVX512 classify Konstantin Ananyev
2020-09-16  9:11     ` Bruce Richardson
2020-09-16  9:36       ` Medvedkin, Vladimir
2020-09-16  9:49         ` Bruce Richardson
2020-09-16 10:06           ` Ananyev, Konstantin
2020-09-15 16:50   ` [dpdk-dev] [PATCH v2 08/12] acl: introduce AVX512 classify implementation Konstantin Ananyev
2020-09-15 16:50   ` [dpdk-dev] [PATCH v2 09/12] acl: enhance " Konstantin Ananyev
2020-09-15 16:50   ` [dpdk-dev] [PATCH v2 10/12] acl: for AVX512 classify use 4B load whenever possible Konstantin Ananyev
2020-09-15 16:50   ` [dpdk-dev] [PATCH v2 11/12] test/acl: add AVX512 classify support Konstantin Ananyev
2020-09-15 16:50   ` [dpdk-dev] [PATCH v2 12/12] app/acl: " Konstantin Ananyev
2020-10-05 18:45   ` [dpdk-dev] [PATCH v3 00/14] acl: introduce AVX512 classify methods Konstantin Ananyev
2020-10-05 18:45     ` [dpdk-dev] [PATCH v3 01/14] acl: fix x86 build when compiler doesn't support AVX2 Konstantin Ananyev
2020-10-05 18:45     ` [dpdk-dev] [PATCH v3 02/14] doc: fix missing classify methods in ACL guide Konstantin Ananyev
2020-10-05 18:45     ` [dpdk-dev] [PATCH v3 03/14] acl: remove of unused enum value Konstantin Ananyev
2020-10-05 18:45     ` [dpdk-dev] [PATCH v3 04/14] acl: remove library constructor Konstantin Ananyev
2020-10-05 18:45     ` [dpdk-dev] [PATCH v3 05/14] app/acl: few small improvements Konstantin Ananyev
2020-10-05 18:45     ` [dpdk-dev] [PATCH v3 06/14] test/acl: expand classify test coverage Konstantin Ananyev
2020-10-05 18:45     ` [dpdk-dev] [PATCH v3 07/14] acl: add infrastructure to support AVX512 classify Konstantin Ananyev
2020-10-05 18:45     ` [dpdk-dev] [PATCH v3 08/14] acl: introduce 256-bit width AVX512 classify implementation Konstantin Ananyev
2020-10-05 18:45     ` [dpdk-dev] [PATCH v3 09/14] acl: update default classify algorithm selection Konstantin Ananyev
2020-10-05 18:45     ` [dpdk-dev] [PATCH v3 10/14] acl: introduce 512-bit width AVX512 classify implementation Konstantin Ananyev
2020-10-05 18:45     ` [dpdk-dev] [PATCH v3 11/14] acl: for AVX512 classify use 4B load whenever possible Konstantin Ananyev
2020-10-05 18:45     ` [dpdk-dev] [PATCH v3 12/14] acl: deduplicate AVX512 code paths Konstantin Ananyev
2020-10-05 18:45     ` [dpdk-dev] [PATCH v3 13/14] test/acl: add AVX512 classify support Konstantin Ananyev
2020-10-05 18:45     ` [dpdk-dev] [PATCH v3 14/14] app/acl: " Konstantin Ananyev
2020-10-06 15:03     ` [dpdk-dev] [PATCH v4 00/14] acl: introduce AVX512 classify methods Konstantin Ananyev
2020-10-06 15:03       ` [dpdk-dev] [PATCH v4 01/14] acl: fix x86 build when compiler doesn't support AVX2 Konstantin Ananyev
2020-10-08 13:42         ` [dpdk-dev] [dpdk-stable] " David Marchand
2020-10-06 15:03       ` [dpdk-dev] [PATCH v4 02/14] doc: fix missing classify methods in ACL guide Konstantin Ananyev
2020-10-08 13:42         ` David Marchand
2020-10-06 15:03       ` [dpdk-dev] [PATCH v4 03/14] acl: remove of unused enum value Konstantin Ananyev
2020-10-06 15:03       ` [dpdk-dev] [PATCH v4 04/14] acl: remove library constructor Konstantin Ananyev
2020-10-06 15:03       ` [dpdk-dev] [PATCH v4 05/14] app/acl: few small improvements Konstantin Ananyev
2020-10-06 15:03       ` [dpdk-dev] [PATCH v4 06/14] test/acl: expand classify test coverage Konstantin Ananyev
2020-10-06 15:03       ` [dpdk-dev] [PATCH v4 07/14] acl: add infrastructure to support AVX512 classify Konstantin Ananyev
2020-10-13 19:17         ` David Marchand
2020-10-13 22:26           ` Ananyev, Konstantin
2020-10-06 15:03       ` [dpdk-dev] [PATCH v4 08/14] acl: introduce 256-bit width AVX512 classify implementation Konstantin Ananyev
2020-10-06 15:03       ` [dpdk-dev] [PATCH v4 09/14] acl: update default classify algorithm selection Konstantin Ananyev
2020-10-06 15:03       ` [dpdk-dev] [PATCH v4 10/14] acl: introduce 512-bit width AVX512 classify implementation Konstantin Ananyev
2020-10-06 15:03       ` [dpdk-dev] [PATCH v4 11/14] acl: for AVX512 classify use 4B load whenever possible Konstantin Ananyev
2020-10-06 15:03       ` [dpdk-dev] [PATCH v4 12/14] acl: deduplicate AVX512 code paths Konstantin Ananyev
2020-10-16 15:56         ` Ferruh Yigit
2020-10-16 16:20           ` Thomas Monjalon
2020-10-06 15:03       ` [dpdk-dev] [PATCH v4 13/14] test/acl: add AVX512 classify support Konstantin Ananyev
2020-10-14 10:26         ` David Marchand
2020-10-14 10:32           ` Ananyev, Konstantin
2020-10-14 10:35             ` David Marchand
2020-10-06 15:03       ` [dpdk-dev] [PATCH v4 14/14] app/acl: " Konstantin Ananyev
2020-10-14 12:40       ` [dpdk-dev] [PATCH v4 00/14] acl: introduce AVX512 classify methods David Marchand
2020-10-06 15:05     ` [dpdk-dev] [PATCH v3 " David Marchand
2020-10-06 16:07       ` Ananyev, Konstantin [this message]
2020-10-08 10:49         ` David Marchand
2020-10-14  9:23         ` Kinsella, Ray

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