From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gavin Hu Subject: [PATCH v2 0/2] rte ring c11 bug fix and optimization Date: Wed, 31 Oct 2018 11:35:43 +0800 Message-ID: <1540956945-211373-1-git-send-email-gavin.hu@arm.com> References: <1539757786-226178-1-git-send-email-gavin.hu@arm.com> Cc: thomas@monjalon.net, olivier.matz@6wind.com, chaozhu@linux.vnet.ibm.com, bruce.richardson@intel.com, konstantin.ananyev@intel.com, jerin.jacob@caviumnetworks.com, Honnappa.Nagarahalli@arm.com, gavin.hu@arm.com To: dev@dpdk.org Return-path: Received: from foss.arm.com (foss.arm.com [217.140.101.70]) by dpdk.org (Postfix) with ESMTP id 8DFBE2C2F for ; Wed, 31 Oct 2018 04:36:25 +0100 (CET) In-Reply-To: <1539757786-226178-1-git-send-email-gavin.hu@arm.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" v1->v2 1) Add the changes to the 18.11 release notes V1: Updated the rte ring C11 driver including the following changes 1) Synchronize the load and store of the tail to ensure the enqueue/dequeue operations are really completed before seen by the observers on the other sides. 2) Move the atomic load of head above the loop for the first iteration,it is not unnecessary and degrade performance for the other iteration as the head was loaded in the failure case of CAS. Gavin Hu (2): ring: synchronize the load and store of the tail ring: move the atomic load of head above the loop doc/guides/rel_notes/release_18_11.rst | 7 +++++++ lib/librte_ring/rte_ring_c11_mem.h | 24 +++++++++++++++++------- 2 files changed, 24 insertions(+), 7 deletions(-) -- 2.7.4