From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f170.google.com (mail-pd0-f170.google.com [209.85.192.170]) by dpdk.org (Postfix) with ESMTP id 604D82E81 for ; Tue, 25 Nov 2014 17:54:32 +0100 (CET) Received: by mail-pd0-f170.google.com with SMTP id fp1so944272pdb.1 for ; Tue, 25 Nov 2014 09:05:25 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to :references:mime-version:content-type:content-transfer-encoding; bh=GAtmrNryEgMyHT7dJ1cB3JVPUhqXl4X3rc/r2q3W3is=; b=S70i/5uih7KRCjVqd3ZFauzsJZ1ugFYz8pqKtP3JPL6H5mCA0vAbhtkxVR948fbxfp ikhNOGIvkMw5NxbbjhOaTxbKCppE9ZsN7uHA/m058C8cvrchUEeALWybAnhA4G+pGyLb VlT1M48khnIkJfCvt0FA44tfavOPwNz3Ah1PX3IPbuarVAkuLA7pgS/fd2oAk/wC4sTA VW05TeTz/QuSSrjgsE6iL14lkBo2Vy6PgCCXQDCWErIHGMCsPDtjm0vhU9CfxKNHPsvp Vmzg2Km51foMby1+bGfDO/96CdlL8o+WrDSh7DSza3/Ek9tm1ZcDEM9zkd4lSYMVfkMH m9RA== X-Gm-Message-State: ALoCoQmXFQ9tVx6mEE8RwenYuAphK1vXdjOiAq4a27Zx0Xcx2FrAP/lgBelEGCYMGgekqv6WZeDa X-Received: by 10.66.119.175 with SMTP id kv15mr46027933pab.30.1416935124794; Tue, 25 Nov 2014 09:05:24 -0800 (PST) Received: from urahara (static-50-53-82-155.bvtn.or.frontiernet.net. [50.53.82.155]) by mx.google.com with ESMTPSA id ht3sm2031852pad.18.2014.11.25.09.05.22 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 25 Nov 2014 09:05:24 -0800 (PST) Date: Tue, 25 Nov 2014 09:05:13 -0800 From: Stephen Hemminger To: Yerden Zhumabekov Message-ID: <20141125090513.3edd3b50@urahara> In-Reply-To: <5469E1ED.4040109@sts.kz> References: <1409724351-23786-1-git-send-email-e_zhumabekov@sts.kz> <1416160760-16087-1-git-send-email-e_zhumabekov@sts.kz> <20141117113110.GB17886@hmsreliant.think-freely.org> <5469E1ED.4040109@sts.kz> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: "dev@dpdk.org" Subject: Re: [dpdk-dev] [PATCH v2 0/4] rte_hash_crc reworked to be platform-independent 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, 25 Nov 2014 16:54:32 -0000 I found that other hash functions are faster than the crc32 SSE instruction. Though the hardware instruction seems like it would be faster, it takes more cycles than simple multiplicative or murmur hash.