From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.github.com (out-21.smtp.github.com [192.30.252.204]) by mail.toke.dk (Postfix) with ESMTPS id 1CB817BA38B for ; Fri, 18 Dec 2020 00:13:35 +0100 (CET) Authentication-Results: mail.toke.dk; dkim=pass (1024-bit key) header.d=github.com header.i=@github.com header.b=plipEY3C Received: from github.com (hubbernetes-node-8c51eba.ac4-iad.github.net [10.52.122.46]) by smtp.github.com (Postfix) with ESMTPA id E9653520BE8 for ; Thu, 17 Dec 2020 15:13:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=github.com; s=pf2014; t=1608246814; bh=4CoVwDkER8lCtelqduP/JSKvs5he2AoQAI0SagN/JlI=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=plipEY3CgzHae1ZFeji93qHGb/pWsIIQlG4IUIfRz7ESvX9MRbRsExwEFZOjUrLAU 7g30Z1ZXDPZI7krDm2kSiF9ZkBN+cZNzxNNnRZXr96DhIwP1/m9pFePmWONM380EsB sPr35v0zEFp/JGGOgbtmwPdK8Mfr3QJKBqQMykfA= Date: Thu, 17 Dec 2020 15:13:34 -0800 From: =?UTF-8?B?VG9rZSBIw7hpbGFuZC1Kw7hyZ2Vuc2Vu?= To: tohojo/flent Message-ID: In-Reply-To: References: Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="--==_mimepart_5fdbe61ee633d_4819b4181976"; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: list X-GitHub-Sender: tohojo X-GitHub-Recipient: flent-users X-GitHub-Reason: comment X-Auto-Response-Suppress: All X-GitHub-Recipient-Address: flent-users@flent.org Message-ID-Hash: JW5XHPUWYNA6PMLWZGEKI4YEAPAG2433 X-Message-ID-Hash: JW5XHPUWYNA6PMLWZGEKI4YEAPAG2433 X-MailFrom: noreply@github.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; suspicious-header CC: flent-users , Comment X-Mailman-Version: 3.3.2 Reply-To: tohojo/flent Subject: [Flent-users] Re: [tohojo/flent] rrul tests are not being able to saturate link (#218) List-Id: Flent discussion list Archived-At: List-Archive: List-Help: List-Post: List-Subscribe: List-Unsubscribe: ----==_mimepart_5fdbe61ee633d_4819b4181976 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit olg33 writes: > In a related issue, It took our attention that whenever we run a rrul or rrul_var test, upload traffic seems to be absent. > > Below examples were performed with two servers connected back-to-back > with no router in between to rule out any blockage (they connect using > an ethernet switch with ports in the same Vlan). Erm, that does sound odd! Only obvious thing I can immediately think of is maybe the network card is running in half-duplex mode? Did you check the output of ethtool for the interface you're using? Otherwise, to debug further you can try running with -L and looking at the netperf output in the log file to see if there's any obvious pointers there... -- You are receiving this because you commented. Reply to this email directly or view it on GitHub: https://github.com/tohojo/flent/issues/218#issuecomment-747763365 ----==_mimepart_5fdbe61ee633d_4819b4181976 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit

olg33 <notifications@github.com> writes:

> In a related issue, It took our attention that whenever we run a rrul or rrul_var test, upload traffic seems to be absent.
>
> Below examples were performed with two servers connected back-to-back
> with no router in between to rule out any blockage (they connect using
> an ethernet switch with ports in the same Vlan).

Erm, that does sound odd! Only obvious thing I can immediately think of
is maybe the network card is running in half-duplex mode? Did you check
the output of ethtool for the interface you're using?

Otherwise, to debug further you can try running with -L and looking at
the netperf output in the log file to see if there's any obvious
pointers there...

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