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 8E774A0613 for ; Thu, 26 Sep 2019 11:43:05 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 589C91BF51; Thu, 26 Sep 2019 11:43:05 +0200 (CEST) Received: from mail-wr1-f49.google.com (mail-wr1-f49.google.com [209.85.221.49]) by dpdk.org (Postfix) with ESMTP id 7A18F1BF31 for ; Thu, 26 Sep 2019 11:43:04 +0200 (CEST) Received: by mail-wr1-f49.google.com with SMTP id h7so1635631wrw.8 for ; Thu, 26 Sep 2019 02:43:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=OtKx/nJWipkMA4lixcjge1pU9688JudmPjzNiQpW/sU=; b=X/COXI0xPRcdXntppDuU4v/BrhbfKj0VkDC3TDNwk9diA+hHmuAubCzu38NvA9cYdi tFlcXKWtwDAMe2adqf4rUhHp1imVbIA0gAYKznJX/reeswRTi3rehXcpAFX4gPF/A47N bnz6f7wmNNwEMKNdp3yiOZfKGt95XFP/dK6/E8WhWTrVaiKkFdAdTYaY53dtdTQUazqU YrXKAIYDbSE4fGBj/5aR9peoBmUcZjLfMrIJKPyfEzLE5pTpTlHaHLq6AdUKGJ7tJ5US PJF4zaOTNEf/BLlw1w41BkeuLo9Jl/AhdFM44oP5KjBB1aj2mTDvm6cLTq6vBwkSo9g6 8vrg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=OtKx/nJWipkMA4lixcjge1pU9688JudmPjzNiQpW/sU=; b=Roxf4oPMcWIxzMaqdxfoLzNQ091ySXNrjJdVlRcbLu1q/4rW7XVhXRdmQfvUl04bDQ 39QjGudelk9BFsJkTJhatU990SKcHProF8YAEhbFxg0908mSUiAfP+9V4qW3Ah/rrecF 8vMgIh/y8OTZMLRbNaC8VDfOAF16RYyFX7C3aLfOzu/WCz2XzIc6v8jPzdEord/IeLO/ 1EsnoAwdKUOr+lf6tlkob18vvPzc4vw11hkyJWEia+LpK9RYrkHPTXvmNsKdnM/xGn3r JPMcFePflCm2Jl1jkvpBSBehp6Wh+z+m2n9rFUBpVGrLQjBUsSxeO03qnuzmAUhxbiob ZUqA== X-Gm-Message-State: APjAAAWZrrvS3JtfLcLAg2lZ9nvld0DczWK+6FByrTY6gJq9PBnBxYRx en9IkTLMSTMTJxueNgENRxHuQ8HPOBLJumyJG9/eL8zOjVc= X-Google-Smtp-Source: APXvYqzj6v4g42VnHtIMliDYe8ZCSm7hBaLpx0ERqp7Y0i/Yu+lygLIB+ZxBbxFuEdu/TxhwNIMUM6+hkCKxjcCjBTk= X-Received: by 2002:adf:e5c2:: with SMTP id a2mr2317580wrn.320.1569490983904; Thu, 26 Sep 2019 02:43:03 -0700 (PDT) MIME-Version: 1.0 References: <20190925221748.1d53073c@hermes.lan> In-Reply-To: <20190925221748.1d53073c@hermes.lan> From: Dheeraj Dang Date: Thu, 26 Sep 2019 15:12:51 +0530 Message-ID: To: Stephen Hemminger Cc: users@dpdk.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: Re: [dpdk-users] Strange Packet Loss with number of flows. 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" I'm running dpdk test cases on Ubuntu 16.04 VM. xstats are not available inside VM. Following are the version of DPDK in Guest OS *DPDK version : 17.08* We are using *OVS version 2.6.1 *and *Intel Corporation Ethernet 10G 2P X520 Adapter card.* On Thu, Sep 26, 2019 at 10:47 AM Stephen Hemminger < stephen@networkplumber.org> wrote: > On Thu, 26 Sep 2019 10:10:25 +0530 > Dheeraj Dang wrote: > > > Hi, > > > > I am having a problem with packet loss and I hope you can help me out. > > When we increase the number of flows, PPM value must increase. I observed > > this behavior to some point, but after that PPM value reduces. Below you > > find the description of application, workload, and observations. > > > > *Application* > > I have a server-client application, a single server, and single client. > > Both machines are using multiple queues to send or receive packets. > > > > > > *Workload* > > I'm running dpdk with fixed PPS value i.e 2 Mpps. > > I'm increasing the number of flows to see the impact on PPM value. > > I'm changing UDP port range to generate the number of flows. > > > > > > *Observations* > > Target MPPS Flows PPM > > 2 2 100 > > 2 100 670 > > 2 1000 3136 > > 2 5000 265878 > > 2 10000 106316 > > *I was expecting PPM value to rise for 10K flows, but its value reduces.* > > Please share your suggestions. > > > > Regards > > Dheeraj Dang > > What DPDK version? What OS? What hardware? > Did you look at xstats in DPDK? >