[v1,2/3] doc: add release note for power changes

Message ID 20190502111815.29343-2-david.hunt@intel.com (mailing list archive)
State Accepted, archived
Headers
Series [v1,1/3] doc/distributor: add SST-BF enhancement info |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation fail apply issues

Commit Message

Hunt, David May 2, 2019, 11:18 a.m. UTC
  In the Power Library, a new bit has been added to the mask returned by
rte_power_get_capabilities which indicates whether the core is an
Intel SST-BF high frequency core.

The Distributor sample app has also been enhanced to make use of SST-BF
cores, and pin relevant workloads to the higher frequency cores, if
available in the core mask provided to the application.

Signed-off-by: David Hunt <david.hunt@intel.com>
---
 doc/guides/rel_notes/release_19_05.rst | 11 +++++++++++
 1 file changed, 11 insertions(+)
  

Comments

John McNamara May 2, 2019, 3:55 p.m. UTC | #1
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of David Hunt
> Sent: Thursday, May 2, 2019 12:18 PM
> To: dev@dpdk.org
> Cc: Hunt, David <david.hunt@intel.com>
> Subject: [dpdk-dev] [PATCH v1 2/3] doc: add release note for power changes
> 
> In the Power Library, a new bit has been added to the mask returned by
> rte_power_get_capabilities which indicates whether the core is an Intel
> SST-BF high frequency core.
> 
> The Distributor sample app has also been enhanced to make use of SST-BF
> cores, and pin relevant workloads to the higher frequency cores, if
> available in the core mask provided to the application.
> 

Acked-by: John McNamara <john.mcnamara@intel.com>
  
Thomas Monjalon May 3, 2019, 8:17 p.m. UTC | #2
02/05/2019 17:55, Mcnamara, John:
> From: David Hunt
> > In the Power Library, a new bit has been added to the mask returned by
> > rte_power_get_capabilities which indicates whether the core is an Intel
> > SST-BF high frequency core.
> > 
> > The Distributor sample app has also been enhanced to make use of SST-BF
> > cores, and pin relevant workloads to the higher frequency cores, if
> > available in the core mask provided to the application.
> 
> Acked-by: John McNamara <john.mcnamara@intel.com>

Applied. Please try to update the release notes at the same time
as the code. Thanks
  

Patch

diff --git a/doc/guides/rel_notes/release_19_05.rst b/doc/guides/rel_notes/release_19_05.rst
index d5ed564ab..b0b71dc7b 100644
--- a/doc/guides/rel_notes/release_19_05.rst
+++ b/doc/guides/rel_notes/release_19_05.rst
@@ -187,6 +187,17 @@  New Features
   Improved testpmd application performance on ARM platform. For ``macswap``
   forwarding mode, NEON intrinsics were used to do swap to save CPU cycles.
 
+* **Updated power management library.**
+
+  Added support for Intel Speed Select Technology - Base Frequency (SST-BF).
+  ``rte_power_get_capabilities`` now has a bit in it's returned mask
+  indicating it's a high frequency core.
+
+* **Updated distributor sample application.**
+
+  Added support for Intel SST-BF feature so that the distributor core is
+  pinned to a high frequency core if available.
+
 
 Removed Items
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