From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.3 (2019-12-06) on mail.toke.dk X-Spam-Level: X-Spam-ASN: X-Spam-Status: No, score=-101.9 required=5.0 tests=BAYES_00,SHORTCIRCUIT shortcircuit=ham autolearn=disabled version=3.4.3 Received: from mail.toke.dk by mail.toke.dk with LMTP id +ZFmHDgxPF4FmwwAOr1fkg (envelope-from ) for ; Thu, 06 Feb 2020 16:31:04 +0100 Authentication-Results: mail.toke.dk; none (SPF check N/A for local connections - client-ip=77.235.54.103; helo=web6.sd.eurovps.com; envelope-from=flent-users-bounces@flent.org; receiver=) Authentication-Results: mail.toke.dk; dkim=fail reason="signature verification failed" (1024-bit key) header.d=github.com header.i=@github.com header.b=MOdtOK9h Received: from web6.sd.eurovps.com (web6.sd.eurovps.com [77.235.54.103]) by mail.toke.dk (Postfix) with ESMTPS id 58AF56F3BDF for ; Thu, 6 Feb 2020 16:31:02 +0100 (CET) Received: from [::1] (port=48254 helo=web6.sd.eurovps.com) by web6.sd.eurovps.com with esmtp (Exim 4.92) (envelope-from ) id 1izj7O-007RrK-0x; Thu, 06 Feb 2020 17:31:02 +0200 Received: from out-23.smtp.github.com ([192.30.252.206]:46503) by web6.sd.eurovps.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92) (envelope-from ) id 1izj7F-007Rlm-Tz for flent-users@flent.org; Thu, 06 Feb 2020 17:30:59 +0200 Date: Thu, 06 Feb 2020 07:30:12 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=github.com; s=pf2014; t=1581003012; bh=NnONPRNwnREb+1iVqoX5ogihmpRWheM4Qs9P/jPH6zA=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=MOdtOK9hA1L4WsspF23wI8AAgArvDcIpJqvwI9fR27sPmKN+eSWDAeSLKYwLjLj6w JDGSemKnaQuZhgQLuX51gty7PzdOP7xX3Iq/QclZ8ullRS1xM/QNPmbyEC9eV+uaLT z4U0mkuNCWYcVtnEDOzDzCIa0iLRGBInQPFVIwzc= 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: subscribed X-Auto-Response-Suppress: All X-GitHub-Recipient-Address: flent-users@flent.org Subject: Re: [Flent-users] [tohojo/flent] Adding netperf send size params (-m/-M) (#195) X-BeenThere: flent-users@flent.org X-Mailman-Version: 2.1.29 List-Id: Flent discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: tohojo/flent Cc: Subscribed Content-Type: multipart/mixed; boundary="===============8846786179586727257==" 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 --===============8846786179586727257== Content-Type: multipart/alternative; boundary="--==_mimepart_5e3c31047fe48_2b0b3ff53b4cd9643389c"; charset=UTF-8 Content-Transfer-Encoding: 7bit ----==_mimepart_5e3c31047fe48_2b0b3ff53b4cd9643389c Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Pete Heist writes: > Sent a pull request but only for setting it globally for TCP so far, > as setting it per-flow and for the UDP packet size was more than I > bargained for. :) No worries, I can add that while merging :) > The reason I'm probably seeing this more than most people is because I > have non-default settings for `net.ipv4.tcp_wmem` for doing tests on > high BDPs. Being able to set this send size as a test parameter would > be useful, because when I do lower and higher bandwidth tests in the > same batch, a setting that works well at low bandwidths may be too > expensive at higher bandwidths. Also why it would be nice if this > "just worked" in netperf. Yeah, netperf auto-tuning would be better, of course. But guess we can't have it all... > I'll also be trying plots with delivery rate instead, since that comes > from the kernel, so I may add some more plots to flent with that in > it. Sure, go right ahead! -Toke -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/tohojo/flent/issues/195#issuecomment-582959606 ----==_mimepart_5e3c31047fe48_2b0b3ff53b4cd9643389c Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit Pete Heist <notifications@github.com> writes:

> Sent a pull request but only for setting it globally for TCP so far,
> as setting it per-flow and for the UDP packet size was more than I
> bargained for. :)

No worries, I can add that while merging :)

> The reason I'm probably seeing this more than most people is because I
> have non-default settings for `net.ipv4.tcp_wmem` for doing tests on
> high BDPs. Being able to set this send size as a test parameter would
> be useful, because when I do lower and higher bandwidth tests in the
> same batch, a setting that works well at low bandwidths may be too
> expensive at higher bandwidths. Also why it would be nice if this
> "just worked" in netperf.

Yeah, netperf auto-tuning would be better, of course. But guess we can't
have it all...

> I'll also be trying plots with delivery rate instead, since that comes
> from the kernel, so I may add some more plots to flent with that in
> it.

Sure, go right ahead!

-Toke

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