memcpy performance regressions 2.19 -> 2.24(5)

Erich Elsen eriche@google.com
Sat May 27 00:31:00 GMT 2017


Sorry for misinterpreting.  Here is the full patch.

On Thu, May 25, 2017 at 3:03 PM, H.J. Lu <hjl.tools@gmail.com> wrote:
> On Thu, May 25, 2017 at 2:57 PM, Erich Elsen <eriche@google.com> wrote:
>> It looks like you already added the non_temporal_threshold as part of
>> the cpu_features tunables?  Here's a small patch that allows the
>
> No, I didn't.  I only added cache info to CPU features.
>
>> cpu_features struct to be passed in.  This is useful if you need to be
>> able to call init_cacheinfo with cpu_features other than the global
>> ones.
>
> I need to see the complete working patch.
>
>>
>>
>> On Thu, May 25, 2017 at 2:23 PM, Erich Elsen <eriche@google.com> wrote:
>>> Ok, will do.
>>>
>>> On Wed, May 24, 2017 at 2:36 PM, H.J. Lu <hjl.tools@gmail.com> wrote:
>>>> On Mon, May 22, 2017 at 8:19 PM, Erich Elsen <eriche@google.com> wrote:
>>>>> Here is the patch that slightly refactors how init_cacheinfo is called.
>>>>>
>>>>
>>>> Please take a look at hjl/tunables/master branch.  You can add
>>>> non_temporal_threshold support on top of it.
>>>>
>>>>
>>>> --
>>>> H.J.
>
>
>
> --
> H.J.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0001-add-tunables-for-x86-cache-info.patch
Type: text/x-patch
Size: 3534 bytes
Desc: not available
URL: <http://sourceware.org/pipermail/libc-alpha/attachments/20170527/049cdec2/attachment.bin>


More information about the Libc-alpha mailing list