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 6D60AA04A5 for ; Wed, 17 Jun 2020 16:02:59 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 093ED29C6; Wed, 17 Jun 2020 16:02:59 +0200 (CEST) Received: from delivery.mailspamprotection.com (delivery.mailspamprotection.com [146.66.121.164]) by dpdk.org (Postfix) with ESMTP id E292B1E2B for ; Wed, 17 Jun 2020 16:02:56 +0200 (CEST) Received: from 72.204.214.35.bc.googleusercontent.com ([35.214.204.72] helo=es18.siteground.eu) by se20.mailspamprotection.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92) (envelope-from ) id 1jlYeQ-0001Ha-Ql for users@dpdk.org; Wed, 17 Jun 2020 09:02:55 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=filipjaniszewski.com; s=default; h=Content-Transfer-Encoding:Content-Type: MIME-Version:Date:Message-ID:Subject:From:To:Sender:Reply-To:Cc:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=iTHGJT6yLnOsP4Z9x3oFvc/dYpeUy7FE8rTxAY2d62g=; b=JGryMUu2wJctzq3mM57ec/jPn7 ivPt3M1mbWGEGvsQBCGDZ/2KtYLTFJx09uShecuvq7iD2qTVDuLGemoj0iDgXT5P59AMARSTMRbNF KLsHRmbrnE2Byfon+vDs+QjHL09y6bZqEc+dkBpUlFKdQv8GRO9MSnkDkl8jQ+BStCobReBD/yfgH dPFRadfvknnMRiU4LxxiMt7ipzynrjcMy9/0ABiM5x+mYlGLZzivjHPfmj9cLkwJay6e63WafX/oR FhcOgFdM3+E6Bqe3x/OCq7MEGCJ2x/x7vYm/uP2n+48uDn4Cg8o4XLs/afoCKcoZFDFruh1n8g4zg YqwrL6Tw==; Received: from [89.64.173.160] (port=49856 helo=localhost.localdomain) by es18.siteground.eu with esmtpsa tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.90devstart-1178-b07e68e5-XX) (envelope-from ) id 1jlYeP-000CVp-E0 for users@dpdk.org; Wed, 17 Jun 2020 16:02:49 +0200 To: users@dpdk.org From: Filip Janiszewski Message-ID: <995f5c0f-6910-d0cf-6758-f892918d6d8e@filipjaniszewski.com> Date: Wed, 17 Jun 2020 16:02:48 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.3.0 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: 35.214.204.72 X-SpamExperts-Domain: es18.siteground.eu X-SpamExperts-Username: 35.214.204.72 Authentication-Results: mailspamprotection.com; auth=pass smtp.auth=35.214.204.72@es18.siteground.eu X-SpamExperts-Outgoing-Class: ham X-SpamExperts-Outgoing-Evidence: Combined (0.29) X-Recommended-Action: accept X-Filter-ID: Mvzo4OR0dZXEDF/gcnlw0f6LF1GdvkEexklpcFpSF5apSDasLI4SayDByyq9LIhVOVltqhP9W+ou 2TI8Eg2JU0TNWdUk1Ol2OGx3IfrIJKywOmJyM1qr8uRnWBrbSAGDD2INR93SD/E4J4SmlGqUQJj9 EvBvwu01uVCaGVBWGqtG1hIW6tTnP0LVYVVAKdcq2rBNMmEsKEibQwSU1xBeOJAOlFzwHtO3tdTI bTgMNQv76lrauuQC+i1JEwUYTHqC/KisXy3mzcJy0aWTpFFLNZffF2I6pcLQcuGWEebewH3Su4V0 uFdos+XyMRrtb4AGSMvMdpIXZzuUtn5D8wUyziXAqEAQZXCFCwvZK9SRAKUmSevEqzlCvlC2yCZv rEqk/5EjVskN5+f0tv7Hu6cPCJ0JqmC43RBCDitrzLQ3DiL+rMKsIGECb4imOf5DWk2muT5KoqPl i/MiyR9weBu6pHB7LxY2nsmQSlY+LOS2RBvyvYF41YKwtUHAIHcwkMwU8oNztlS2lk2MAJxthbEB J810xzT60uub84zZk03vFUr5sGqoT7aL6zfnTlK0ipRl2eMaYoDpLQqel3M9drX4xT3dKxLhoxcm aInYbR5vlqF1h44QsltTBia8XHjaZSjOKdvTyBjtn1YZtaf24ZD2cb6KNuraKjP0e8EWfxt1Dw4k sVlXZWxasRfFjM8m8h7IISdVKyA8/8yCpIYzH3apf78hv/eAPXF2/g6Nh7EU3uLJIKHlAjOKHNYx AwBGWsbu2FD/MzjSMNlBZYNy5PTTeZnKqxC5gMIoV2nwQANvG2BQwEgfLqIEIXVDc2FPtCThRpCG sDz6/VGqNK7iYjQXo4C+sWeyWjzErdamhuvmQyERFZ4oobg8BBg3Jq+ntzj0RjqJTqmP7qmkih2W Etl2+yZV6Mmzr63y5YBK2yRTwl9i4tCyDgzykDt8bmYH4T8Ihp7tl7sSJiVsdH32F/i7yoJ5hk9o +MxJACRkUtXy2NAhu1/rdU1t/SWu+yxj6TsAjct3ncL3kd+5uibOsA1mRZHzWMmvk0UHbhiG5Vg3 xxgzQuBfn58kEG80HSa5ea3iPJChQi88au4TLaCV6H19S4w9wpL5D/yF8BAAxodc2tT3K7c+w3qs 5s7L8fDiSW7Ie1Huf6ZU9LftxXX6dQt7i59wtAGMZ+Nn0VCKuV8S95daFBQqd4niPDvaBSB5Qmy0 cGrPtNGJYX3VT+yZ12sm8Q== X-Report-Abuse-To: spam@quarantine1.mailspamprotection.com Subject: [dpdk-users] Bigger mempool leads to worst performances. 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 All, I'm very aware the question is generic, but we can't really understand what would be the problem here.. In short, we've a capture software running smoothly at 20GbE and capturing everything, recently we've switched gear and increased the amount of data, and encountered some drops. One of the first ideas was that increasing the mempool for the port would lead to some performance benefit or worst case scenario to no change in the drop rate, but, unexpectedly we started dropping *substantially more* packets.. It looks like that in our environment increasing the mempool reduce the capture performance, any suggestion on what I might look at to troubleshoot the problem? Apparently we can't go beyond 4GiB mempool without performance penalties. (Please note that 1GiB hugepage are configured to serve all the require additional memory.) Thanks -- BR, Filip +48 666 369 823