From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id 04005C2DC for ; Tue, 2 Jun 2015 15:11:39 +0200 (CEST) Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga101.fm.intel.com with ESMTP; 02 Jun 2015 06:11:39 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,539,1427785200"; d="scan'208";a="580631497" Received: from obarbu-mobl.ger.corp.intel.com (HELO localhost) ([10.252.44.135]) by orsmga003.jf.intel.com with ESMTP; 02 Jun 2015 06:11:39 -0700 From: Roman Dementiev To: dev@dpdk.org Date: Tue, 2 Jun 2015 15:11:30 +0200 Message-Id: <1433250693-23644-1-git-send-email-roman.dementiev@intel.com> X-Mailer: git-send-email 1.9.5.msysgit.0 Subject: [dpdk-dev] add support for HTM lock elision for x86 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 02 Jun 2015 13:11:40 -0000 This series of patches adds methods that use hardware memory transactions (HTM) on fast-path for DPDK locks (a.k.a. lock elision). Here the methods are implemented for x86 using Restricted Transactional Memory instructions (Intel(r) Transactional Synchronization Extensions). The implementation fall-backs to the normal DPDK lock if HTM is not available or memory transactions fail. This is not a replacement for lock usages since not all critical sections protected by locks are friendly to HTM. Roman Dementiev (3): spinlock: add support for HTM lock elision for x86 rwlock: add support for HTM lock elision for x86 test scaling of HTM lock elision protecting rte_hash app/test/Makefile | 1 + app/test/test_hash_scaling.c | 223 +++++++++++++++++++++ lib/librte_eal/common/Makefile | 4 +- .../common/include/arch/ppc_64/rte_rwlock.h | 38 ++++ .../common/include/arch/ppc_64/rte_spinlock.h | 41 ++++ lib/librte_eal/common/include/arch/x86/rte_rtm.h | 73 +++++++ .../common/include/arch/x86/rte_rwlock.h | 82 ++++++++ .../common/include/arch/x86/rte_spinlock.h | 107 ++++++++++ lib/librte_eal/common/include/generic/rte_rwlock.h | 194 ++++++++++++++++++ .../common/include/generic/rte_spinlock.h | 75 +++++++ lib/librte_eal/common/include/rte_rwlock.h | 158 --------------- 11 files changed, 836 insertions(+), 160 deletions(-) Intel GmbH Dornacher Strasse 1 85622 Feldkirchen/Muenchen, Deutschland Sitz der Gesellschaft: Feldkirchen bei Muenchen Geschaeftsfuehrer: Christian Lamprechter, Hannes Schwaderer, Douglas Lusk Registergericht: Muenchen HRB 47456 Ust.-IdNr./VAT Registration No.: DE129385895 Citibank Frankfurt a.M. (BLZ 502 109 00) 600119052