[dpdk-dev] [PATCH v1 2/3] doc: add release note for power changes

David Hunt david.hunt at intel.com
Thu May 2 13:18:14 CEST 2019


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 at intel.com>
---
 doc/guides/rel_notes/release_19_05.rst | 11 +++++++++++
 1 file changed, 11 insertions(+)

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
 -------------
-- 
2.17.1



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