On 2015/5/13 9:18, Ravi Kerur wrote:
> If you can wait until Thursday I will probably send v3 patch which will
> have full memcmp support.
Ok, I'd like to test it:)
>
> In your program try with volatile pointer and see if it helps.
like "volatile uint8_t *src, *dst" ?
On Wed, May 13, 2015 at 2:03 AM, Bruce Richardson <
bruce.richardson at intel.com> wrote:
> On Tue, May 12, 2015 at 06:16:20PM -0700, Ravi Kerur wrote:
> > On Mon, May 11, 2015 at 3:29 PM, Don Provan wrote:
> >
> > > I probably shouldn't stick my nose into this, but I can't help myself.
> > >
>
On Wed, May 13, 2015 at 5:21 AM, Jay Rolette wrote:
> On Tue, May 12, 2015 at 8:16 PM, Ravi Kerur wrote:
>
>> On Mon, May 11, 2015 at 3:29 PM, Don Provan wrote:
>>
>> > I probably shouldn't stick my nose into this, but I can't help myself.
>> >
>> > An experienced programmer will tend to
gt; > Subject: FW: [dpdk-dev] [PATCH v2] Implement memcmp using AVX/SSE
> instructions.
> >
> >
> >
> > From: Ravi Kerur [mailto:rkerur at gmail.com]
> > Sent: Monday, May 11, 2015 9:47 PM
> > To: Ananyev, Konstantin
> > Cc: dev at dpdk.org
> >
On Wed, May 13, 2015 at 12:22 AM, Linhaifeng wrote:
>
>
> On 2015/5/13 9:18, Ravi Kerur wrote:
> > If you can wait until Thursday I will probably send v3 patch which will
> > have full memcmp support.
>
> Ok, I'd like to test it:)
>
> >
> > In your program try with volatile pointer and see if it
Hi Ravi,
> -Original Message-
> From: Ananyev, Konstantin
> Sent: Wednesday, May 13, 2015 11:02 AM
> To: Ananyev, Konstantin
> Subject: FW: [dpdk-dev] [PATCH v2] Implement memcmp using AVX/SSE
> instructions.
>
>
>
> From: Ravi Kerur [mailto:rkerur at gma
On Tue, May 12, 2015 at 06:16:20PM -0700, Ravi Kerur wrote:
> On Mon, May 11, 2015 at 3:29 PM, Don Provan wrote:
>
> > I probably shouldn't stick my nose into this, but I can't help myself.
> >
> > An experienced programmer will tend to ignore the documentation for
> > a routine named
On Tue, May 12, 2015 at 8:16 PM, Ravi Kerur wrote:
> On Mon, May 11, 2015 at 3:29 PM, Don Provan wrote:
>
> > I probably shouldn't stick my nose into this, but I can't help myself.
> >
> > An experienced programmer will tend to ignore the documentation for
> > a routine named "blahblah_memcmp"
Hi Linhaifeng,
On Tue, May 12, 2015 at 1:13 AM, Linhaifeng wrote:
> Hi, Ravi Kerur
>
> On 2015/5/9 5:19, Ravi Kerur wrote:
> > Preliminary results on Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz, Ubuntu
> > 14.04 x86_64 shows comparisons using AVX/SSE instructions taking 1/3rd
> > CPU ticks for 16,
> dprovan at bivio.net
>
> -Original Message-
> From: Ravi Kerur [mailto:rkerur at gmail.com]
> Sent: Monday, May 11, 2015 1:47 PM
> To: Ananyev, Konstantin
> Cc: dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v2] Implement memcmp using AVX/SSE
> instructions.
>
&g
Hi, Ravi Kerur
On 2015/5/9 5:19, Ravi Kerur wrote:
> Preliminary results on Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz, Ubuntu
> 14.04 x86_64 shows comparisons using AVX/SSE instructions taking 1/3rd
> CPU ticks for 16, 32, 48 and 64 bytes comparison. In addition,
I had write a program to test
ough about your use
cases to say whether that makes sense here.
-don provan
dprovan at bivio.net
-Original Message-
From: Ravi Kerur [mailto:rke...@gmail.com]
Sent: Monday, May 11, 2015 1:47 PM
To: Ananyev, Konstantin
Cc: dev at dpdk.org
Subject: Re: [dpdk-dev] [PATCH v2] Implement memcmp us
Hi Ravi,
>
> From: Ravi Kerur [mailto:rkerur at gmail.com]
> Sent: Monday, May 11, 2015 6:43 PM
> To: Ananyev, Konstantin
> Cc: Matt Laswell; dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v2] Implement memcmp using AVX/SSE
> instructions.
>
> Hi Konstantin,
&
n
> > Cc: Matt Laswell; dev at dpdk.org
> > Subject: Re: [dpdk-dev] [PATCH v2] Implement memcmp using AVX/SSE
> instructions.
> >
> > Hi Konstantin,
> >
> >
> > On Mon, May 11, 2015 at 2:51 AM, Ananyev, Konstantin <
> konstantin.ananyev at intel.com>
PM
> > To: Matt Laswell
> > Cc: dev at dpdk.org
> > Subject: Re: [dpdk-dev] [PATCH v2] Implement memcmp using AVX/SSE
> instructions.
> >
> > On Fri, May 8, 2015 at 3:29 PM, Matt Laswell
> wrote:
> >
> > >
> > >
> > > On Fri
Hi Ravi,
> -Original Message-
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Ravi Kerur
> Sent: Friday, May 08, 2015 11:55 PM
> To: Matt Laswell
> Cc: dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v2] Implement memcmp using AVX/SSE
> instructions.
>
On Fri, May 8, 2015 at 5:54 PM, Ravi Kerur wrote:
>
>
> On Fri, May 8, 2015 at 3:29 PM, Matt Laswell
> wrote:
>
>>
>>
>> On Fri, May 8, 2015 at 4:19 PM, Ravi Kerur wrote:
>>
>>> This patch replaces memcmp in librte_hash with rte_memcmp which is
>>> implemented with AVX/SSE instructions.
>>>
On Fri, May 8, 2015 at 4:19 PM, Ravi Kerur wrote:
> This patch replaces memcmp in librte_hash with rte_memcmp which is
> implemented with AVX/SSE instructions.
>
> +static inline int
> +rte_memcmp(const void *_src_1, const void *_src_2, size_t n)
> +{
> + const uint8_t *src_1 = (const
On Fri, May 8, 2015 at 3:29 PM, Matt Laswell wrote:
>
>
> On Fri, May 8, 2015 at 4:19 PM, Ravi Kerur wrote:
>
>> This patch replaces memcmp in librte_hash with rte_memcmp which is
>> implemented with AVX/SSE instructions.
>>
>> +static inline int
>> +rte_memcmp(const void *_src_1, const void
This patch replaces memcmp in librte_hash with rte_memcmp which is
implemented with AVX/SSE instructions.
Preliminary results on Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz, Ubuntu
14.04 x86_64 shows comparisons using AVX/SSE instructions taking 1/3rd
CPU ticks for 16, 32, 48 and 64 bytes comparison.
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