From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mail.toke.dk X-Spam-Level: X-Spam-ASN: X-Spam-Status: No, score=-101.9 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_NONE, SHORTCIRCUIT shortcircuit=ham autolearn=disabled version=3.4.1 Received: from mail.toke.dk by mail.toke.dk with LMTP id mNrxBB4sFVrmSQAAOr1fkg for ; Wed, 22 Nov 2017 08:49:50 +0100 Received: from web6.sd.eurovps.com (web6.sd.eurovps.com [77.235.54.103]) by mail.toke.dk (Postfix) with ESMTPS id C819C23945F for ; Wed, 22 Nov 2017 08:49:48 +0100 (CET) Authentication-Results: mail.toke.dk; dkim=fail reason="key not found in DNS" (0-bit key) header.d=flent.org header.i=@flent.org header.b=UJRYbRV2; dkim=fail reason="signature verification failed" (1024-bit key) header.d=github.com header.i=@github.com header.b=dgnRxKkA DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=flent.org; s=default; h=Sender:Content-Type:Cc:Reply-To:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:Subject:Mime-Version: References:In-Reply-To:Message-ID:To:From:Date:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=TyTuKongAvY8OpvJYBhcQCEzzPOjjuEyFeMlg9U9rHk=; b=UJRYbRV2yyBuKPsAax/D6dQO3m s7P1HR5DqP2a+Z7QAU6Z1VIaiylnrnqHSE/uJV9qEkdUl2YD0HBf1OpoeNLOTwup+jP+ZAUeZO2PL h+eTRhaS/wZzXYBtmQrPaCNxVX/CSULGOs7ubF4gz/zVjrwnUa9fie5adHzSMKCHT06Dapp1HzWLC CGAWCHg4zKpub6iX2a6pjgVSCNIjTt8tQbfzGV1+QVQgI3UTSRzImiU22wCC2G83LJqaD3RhRRNB5 miC6PqVXDQse+B7uEEiCVvWmUK3Hyn/FH2qg16upBDuxeLZVL/J7+ZYu3YxbO4+12d+F/iD6Yk2x8 7/X1HnQg==; Received: from [::1] (port=43281 helo=web6.sd.eurovps.com) by web6.sd.eurovps.com with esmtp (Exim 4.89) (envelope-from ) id 1eHPn1-001b9Y-8w; Wed, 22 Nov 2017 09:49:47 +0200 Received: from o3.sgmail.github.com ([192.254.112.98]:45736) by web6.sd.eurovps.com with esmtps (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.89) (envelope-from ) id 1eHPmy-001b2g-Kb for flent-users@flent.org; Wed, 22 Nov 2017 09:49:46 +0200 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=github.com; h=from:reply-to:to:cc:in-reply-to:references:subject:mime-version:content-type:content-transfer-encoding:list-id:list-archive:list-post:list-unsubscribe; s=s20150108; bh=Y7Vqcd9dT9V6GN39Pst5px+4Tww=; b=dgnRxKkAJARP93q7 R+WwDjxxwr2gY6HGIcRXwBWz8QPMDi5x/yzHxSkejdYMmz17v8nlDlNOpPzyaVlU 8BY50JhLMmXijEcpC6/R0F31SJmuIBPnYL65wEVxCJDYrvEkcSTAyvBrNbSkCkQA GDXoY7+Pg5kU5833wv1VEr4j0Js= Received: by filter0248p1iad2.sendgrid.net with SMTP id filter0248p1iad2-23543-5A152BEE-F 2017-11-22 07:49:02.79446305 +0000 UTC Received: from github-smtp2b-ext-cp1-prd.iad.github.net (github-smtp2b-ext-cp1-prd.iad.github.net [192.30.253.17]) by ismtpd0002p1iad1.sendgrid.net (SG) with ESMTP id 8h6-m8d5TT6S99Faj7ZmbQ for ; Wed, 22 Nov 2017 07:49:02.547 +0000 (UTC) Date: Wed, 22 Nov 2017 07:49:02 +0000 (UTC) From: =?UTF-8?B?VG9rZSBIw7hpbGFuZC1Kw7hyZ2Vuc2Vu?= To: tohojo/flent Message-ID: In-Reply-To: References: Mime-Version: 1.0 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 tracking: X-SG-EID: IRsowsd9yCOJafMG0EWGsh26xBq50lgDrxWUlCCqUnsU/yhqvCDmU77BHb+BywWvMrLk7PjgnMRbbW 67m+mmrKoMkd8WQUB1HwZtd+/6Vq6gALcT14KyD9oU2Lh6I0lC/OA6mrDuU8BCvNRbVwQBz/Zxbsyo j+mqZcJMnVlg/OmOvmMIgjuFf7GFmr2c8KufBx4Oe7eu6lzpORUNO+3fKhOWac+92bgGSlug/kzKUx RVoFaGc1Gto6cg5zNljAjU Subject: Re: [Flent-users] [tohojo/flent] packet loss stats (#106) X-BeenThere: flent-users@flent.org X-Mailman-Version: 2.1.23 List-Id: Flent discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: tohojo/flent Cc: Comment , flent-users Content-Type: multipart/mixed; boundary="===============8309308740358977513==" Errors-To: flent-users-bounces@flent.org Sender: "Flent-users" X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - web6.sd.eurovps.com X-AntiAbuse: Original Domain - toke.dk X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - flent.org X-Get-Message-Sender-Via: web6.sd.eurovps.com: acl_c_authenticated_local_user: mailman/mailman X-Authenticated-Sender: web6.sd.eurovps.com: mailman@flent.org --===============8309308740358977513== Content-Type: multipart/alternative; boundary="--==_mimepart_5a152bee71b3d_2d553fc829586f3411277ce"; charset=UTF-8 Content-Transfer-Encoding: 7bit ----==_mimepart_5a152bee71b3d_2d553fc829586f3411277ce Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Pete Heist writes: >> > And this likely takes the mean value of all transactions and >> > summarizes it at the end of the interval, then the calculated latency >> > was what was plotted in flent? >>=20 >> Yup, that's exactly it :) > > Ok, it=E2=80=99ll be interesting for me to look at the differences betwee= n the > two going forward. Naturally doing it the udp_rr way would probably > result in a smoother line. The other impacts on the test might be fun > to explore. Well the obvious one is that the netperf measurement uses more bandwidth as the latency decreases. Have been meaning to add that to the Flent bandwidth graphs, but now I'm not sure I'll even bother :P Also, the netperf measurement will stop at the first packet loss (later versions added in a timeout parameter that will restart it, but even with that we often see UDP latency graphs completely stopping after a few seconds of the RRUL test). -Toke --=20 You are receiving this because you commented. Reply to this email directly or view it on GitHub: https://github.com/tohojo/flent/issues/106#issuecomment-346269442= ----==_mimepart_5a152bee71b3d_2d553fc829586f3411277ce Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Pete Heist <notifications@github.com> writes:

>> > And this likely takes the mean value of all transactions and<= br> >> > summarizes it at the end of the interval, then the calculated= latency
>> > was what was plotted in flent?
>>
>> Yup, that's exactly it :)
>
> Ok, it=E2=80=99ll be interesting for me to look at the differences bet= ween the
> two going forward. Naturally doing it the udp_rr way would probably
> result in a smoother line. The other impacts on the test might be fun<= br> > to explore.

Well the obvious one is that the netperf measurement uses more bandwidth
as the latency decreases. Have been meaning to add that to the Flent
bandwidth graphs, but now I'm not sure I'll even bother :P

Also, the netperf measurement will stop at the first packet loss (later
versions added in a timeout parameter that will restart it, but even
with that we often see UDP latency graphs completely stopping after a
few seconds of the RRUL test).

-Toke

&mda= sh;
You are receiving this because you commented.
Reply to this e= mail directly, view it on GitHub, or mute the thread.3D""

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