From: "Yang, Zhiyong" <zhiyong.yang@intel.com>
To: "thomas.monjalon@6wind.com" <thomas.monjalon@6wind.com>,
"Richardson, Bruce" <bruce.richardson@intel.com>,
"Ananyev, Konstantin" <konstantin.ananyev@intel.com>
Cc: "yuanhan.liu@linux.intel.com" <yuanhan.liu@linux.intel.com>,
"De Lara Guarch, Pablo" <pablo.de.lara.guarch@intel.com>,
"dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v2 0/4] eal/common: introduce rte_memset and related test
Date: Tue, 17 Jan 2017 06:24:55 +0000 [thread overview]
Message-ID: <E182254E98A5DA4EB1E657AC7CB9BD2A3EB6BA7C@BGSMSX101.gar.corp.intel.com> (raw)
In-Reply-To: <E182254E98A5DA4EB1E657AC7CB9BD2A3EB699B4@BGSMSX101.gar.corp.intel.com>
Hi, Thomas:
Does this patchset have chance to be applied for 1702 release?
Thanks
Zhiyong
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Yang, Zhiyong
> Sent: Monday, January 9, 2017 5:49 PM
> To: thomas.monjalon@6wind.com; Richardson, Bruce
> <bruce.richardson@intel.com>; Ananyev, Konstantin
> <konstantin.ananyev@intel.com>
> Cc: yuanhan.liu@linux.intel.com; De Lara Guarch, Pablo
> <pablo.de.lara.guarch@intel.com>; dev@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v2 0/4] eal/common: introduce rte_memset
> and related test
>
> Hi, Thomas, Bruce, Konstantin:
>
> Any comments about the patchset? Do I need to modify anything?
>
> Thanks
> Zhiyong
>
> > -----Original Message-----
> > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Zhiyong Yang
> > Sent: Tuesday, December 27, 2016 6:05 PM
> > To: dev@dpdk.org
> > Cc: yuanhan.liu@linux.intel.com; thomas.monjalon@6wind.com;
> > Richardson, Bruce <bruce.richardson@intel.com>; Ananyev, Konstantin
> > <konstantin.ananyev@intel.com>; De Lara Guarch, Pablo
> > <pablo.de.lara.guarch@intel.com>
> > Subject: [dpdk-dev] [PATCH v2 0/4] eal/common: introduce rte_memset
> > and related test
> >
> > DPDK code has met performance drop badly in some case when calling
> > glibc function memset. Reference to discussions about memset in
> > http://dpdk.org/ml/archives/dev/2016-October/048628.html
> > It is necessary to introduce more high efficient function to fix it.
> > One important thing about rte_memset is that we can get clear control
> > on what instruction flow is used.
> >
> > This patchset introduces rte_memset to bring more high efficient
> > implementation, and will bring obvious perf improvement, especially
> > for small N bytes in the most application scenarios.
> >
> > Patch 1 implements rte_memset in the file rte_memset.h on IA platform
> > The file supports three types of instruction sets including sse & avx
> > (128bits),
> > avx2(256bits) and avx512(512bits). rte_memset makes use of
> > vectorization and inline function to improve the perf on IA. In
> > addition, cache line and memory alignment are fully taken into
> consideration.
> >
> > Patch 2 implements functional autotest to validates the function
> > whether to work in a right way.
> >
> > Patch 3 implements performance autotest separately in cache and memory.
> > We can see the perf of rte_memset is obviously better than glibc
> > memset especially for small N bytes.
> >
> > Patch 4 Using rte_memset instead of copy_virtio_net_hdr can bring
> > 3%~4% performance improvements on IA platform from virtio/vhost
> > non-mergeable loopback testing.
> >
> > Changes in V2:
> >
> > Patch 1:
> > Rename rte_memset.h -> rte_memset_64.h and create a file
> rte_memset.h
> > for each arch.
> >
> > Patch 3:
> > add the perf comparation data between rte_memset and memset on
> > haswell.
> >
> > Patch 4:
> > Modify release_17_02.rst description.
> >
> > Zhiyong Yang (4):
> > eal/common: introduce rte_memset on IA platform
> > app/test: add functional autotest for rte_memset
> > app/test: add performance autotest for rte_memset
> > lib/librte_vhost: improve vhost perf using rte_memset
> >
> > app/test/Makefile | 3 +
> > app/test/test_memset.c | 158 +++++++++
> > app/test/test_memset_perf.c | 348 +++++++++++++++++++
> > doc/guides/rel_notes/release_17_02.rst | 7 +
> > .../common/include/arch/arm/rte_memset.h | 36 ++
> > .../common/include/arch/ppc_64/rte_memset.h | 36 ++
> > .../common/include/arch/tile/rte_memset.h | 36 ++
> > .../common/include/arch/x86/rte_memset.h | 51 +++
> > .../common/include/arch/x86/rte_memset_64.h | 378
> > +++++++++++++++++++++
> > lib/librte_eal/common/include/generic/rte_memset.h | 52 +++
> > lib/librte_vhost/virtio_net.c | 18 +-
> > 11 files changed, 1116 insertions(+), 7 deletions(-) create mode
> > 100644 app/test/test_memset.c create mode 100644
> > app/test/test_memset_perf.c create mode 100644
> > lib/librte_eal/common/include/arch/arm/rte_memset.h
> > create mode 100644
> > lib/librte_eal/common/include/arch/ppc_64/rte_memset.h
> > create mode 100644
> > lib/librte_eal/common/include/arch/tile/rte_memset.h
> > create mode 100644
> > lib/librte_eal/common/include/arch/x86/rte_memset.h
> > create mode 100644
> > lib/librte_eal/common/include/arch/x86/rte_memset_64.h
> > create mode 100644
> lib/librte_eal/common/include/generic/rte_memset.h
> >
> > --
> > 2.7.4
next prev parent reply other threads:[~2017-01-17 6:25 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-05 8:26 [dpdk-dev] [PATCH " Zhiyong Yang
2016-12-02 10:00 ` Maxime Coquelin
2016-12-06 6:33 ` Yang, Zhiyong
2016-12-06 8:29 ` Maxime Coquelin
2016-12-07 9:28 ` Yang, Zhiyong
2016-12-07 9:37 ` Yuanhan Liu
2016-12-07 9:43 ` Yang, Zhiyong
2016-12-07 9:48 ` Yuanhan Liu
2016-12-05 8:26 ` [dpdk-dev] [PATCH 1/4] eal/common: introduce rte_memset on IA platform Zhiyong Yang
2016-12-02 10:25 ` Thomas Monjalon
2016-12-08 7:41 ` Yang, Zhiyong
2016-12-08 9:26 ` Ananyev, Konstantin
2016-12-08 9:53 ` Yang, Zhiyong
2016-12-08 10:27 ` Bruce Richardson
2016-12-08 10:30 ` Ananyev, Konstantin
2016-12-11 12:32 ` Yang, Zhiyong
2016-12-15 6:51 ` Yang, Zhiyong
2016-12-15 10:12 ` Bruce Richardson
2016-12-16 10:19 ` Yang, Zhiyong
2016-12-19 6:27 ` Yuanhan Liu
2016-12-20 2:41 ` Yao, Lei A
2016-12-15 10:53 ` Ananyev, Konstantin
2016-12-16 2:15 ` Yang, Zhiyong
2016-12-16 11:47 ` Ananyev, Konstantin
2016-12-20 9:31 ` Yang, Zhiyong
2016-12-08 15:09 ` Thomas Monjalon
2016-12-11 12:04 ` Yang, Zhiyong
2016-12-27 10:04 ` [dpdk-dev] [PATCH v2 0/4] eal/common: introduce rte_memset and related test Zhiyong Yang
2016-12-27 10:04 ` [dpdk-dev] [PATCH v2 1/4] eal/common: introduce rte_memset on IA platform Zhiyong Yang
2016-12-27 10:04 ` [dpdk-dev] [PATCH v2 2/4] app/test: add functional autotest for rte_memset Zhiyong Yang
2016-12-27 10:04 ` [dpdk-dev] [PATCH v2 3/4] app/test: add performance " Zhiyong Yang
2016-12-27 10:04 ` [dpdk-dev] [PATCH v2 4/4] lib/librte_vhost: improve vhost perf using rte_memset Zhiyong Yang
2017-01-09 9:48 ` [dpdk-dev] [PATCH v2 0/4] eal/common: introduce rte_memset and related test Yang, Zhiyong
2017-01-17 6:24 ` Yang, Zhiyong [this message]
2017-01-17 20:14 ` Thomas Monjalon
2017-01-18 0:15 ` Vincent JARDIN
2017-01-18 2:42 ` Yang, Zhiyong
2017-01-18 7:42 ` Thomas Monjalon
2017-01-19 1:36 ` Yang, Zhiyong
2016-12-05 8:26 ` [dpdk-dev] [PATCH 2/4] app/test: add functional autotest for rte_memset Zhiyong Yang
2016-12-05 8:26 ` [dpdk-dev] [PATCH 3/4] app/test: add performance " Zhiyong Yang
2016-12-05 8:26 ` [dpdk-dev] [PATCH 4/4] lib/librte_vhost: improve vhost perf using rte_memset Zhiyong Yang
2016-12-02 9:46 ` Thomas Monjalon
2016-12-06 8:04 ` Yang, Zhiyong
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