From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id E72FB376C for ; Tue, 12 May 2015 13:03:06 +0200 (CEST) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga102.fm.intel.com with ESMTP; 12 May 2015 04:03:05 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,414,1427785200"; d="scan'208";a="693593790" Received: from irvmail001.ir.intel.com ([163.33.26.43]) by orsmga001.jf.intel.com with ESMTP; 12 May 2015 04:03:04 -0700 Received: from sivswdev02.ir.intel.com (sivswdev02.ir.intel.com [10.237.217.46]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id t4CB34Mo025597; Tue, 12 May 2015 12:03:04 +0100 Received: from sivswdev02.ir.intel.com (localhost [127.0.0.1]) by sivswdev02.ir.intel.com with ESMTP id t4CB2waa028416; Tue, 12 May 2015 12:02:58 +0100 Received: (from pdelarax@localhost) by sivswdev02.ir.intel.com with id t4CB2fJJ028279; Tue, 12 May 2015 12:02:41 +0100 From: Pablo de Lara To: dev@dpdk.org Date: Tue, 12 May 2015 12:02:32 +0100 Message-Id: <1431428560-25426-1-git-send-email-pablo.de.lara.guarch@intel.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1430837034-21031-1-git-send-email-pablo.de.lara.guarch@intel.com> References: <1430837034-21031-1-git-send-email-pablo.de.lara.guarch@intel.com> Subject: [dpdk-dev] [PATCH v4 0/6] update jhash function 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, 12 May 2015 11:03:07 -0000 Jenkins hash function was developed originally in 1996, and was integrated in first versions of DPDK. The function has been improved in 2006, achieving up to 60% better performance, compared to the original one. This patchset updates the current jhash in DPDK, including two new functions that generate two hashes from a single key. It also separates the existing hash function performance tests to another file, to make it quicker to run. changes in v4: - Simplify key alignment checks - Include missing x86 arch check changes in v3: - Update rte_jhash_1word, rte_jhash_2words and rte_jhash_3words functions changes in v2: - Split single commit in three commits, one that updates the existing functions and another that adds two new functions and use one of those functions as a base to be called by the other ones. - Remove some unnecessary ifdefs in the code. - Add new macros to help on the reutilization of constants - Separate hash function performance tests to another file and improve cycle measurements. - Rename existing function rte_jhash2 to rte_jhash_32b (something more meaninful) and mark rte_jhash2 as deprecated Pablo de Lara (6): test/hash: move hash function perf tests to separate file test/hash: improve accuracy on cycle measurements hash: update jhash function with the latest available hash: add two new functions to jhash library hash: remove duplicated code hash: rename rte_jhash2 to rte_jhash_32b app/test/Makefile | 1 + app/test/test_func_reentrancy.c | 2 +- app/test/test_hash.c | 4 +- app/test/test_hash_func_perf.c | 145 +++++++++++++++++ app/test/test_hash_perf.c | 71 +-------- lib/librte_hash/rte_jhash.h | 338 +++++++++++++++++++++++++++++---------- 6 files changed, 402 insertions(+), 159 deletions(-) create mode 100644 app/test/test_hash_func_perf.c -- 1.7.4.1