From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id EEE8BA0562 for ; Fri, 3 Apr 2020 18:24:15 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 2A62E1BF6D; Fri, 3 Apr 2020 18:24:15 +0200 (CEST) Received: from wh10.alp1.flow.ch (wh10.alp1.flow.ch [185.119.84.194]) by dpdk.org (Postfix) with ESMTP id 221871BEE3 for ; Fri, 3 Apr 2020 18:24:13 +0200 (CEST) Received: from [::1] (port=41466 helo=wh10.alp1.flow.ch) by wh10.alp1.flow.ch with esmtpa (Exim 4.92) (envelope-from ) id 1jKP76-00CyVI-Rh for users@dpdk.org; Fri, 03 Apr 2020 18:24:12 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Fri, 03 Apr 2020 18:24:12 +0200 From: Alex Kiselev To: users@dpdk.org Message-ID: X-Sender: alex@therouter.net User-Agent: Roundcube Webmail/1.3.8 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - wh10.alp1.flow.ch X-AntiAbuse: Original Domain - dpdk.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - therouter.net X-Get-Message-Sender-Via: wh10.alp1.flow.ch: authenticated_id: alex@therouter.net X-Authenticated-Sender: wh10.alp1.flow.ch: alex@therouter.net X-Source: X-Source-Args: X-Source-Dir: Subject: [dpdk-users] eal_memalloc_is_contig() is consuming a lot of cpu during initialization X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: users-bounces@dpdk.org Sender: "users" Hi, I am facing a strange behavior of my DPDK application on one particular machine. It takes about 30 seconds for the application to finish DPDK initialization procedures, while normally it takes less than 5-6 seconds. During that time perf top shows that eal_memalloc_is_contig() is consuming all cpu. 76.34% the_router [.] eal_memalloc_is_contig DPDK version is stable-18.11.3 and it's built for the westmere architecture. cpu is Xeon(R) CPU X5650 @ 2.67GHz How can I resolve that problem? Thanks.