From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) 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=3.4.2 Received: from mail.toke.dk by mail.toke.dk with LMTP id BsZkBHuFdl1iYAAAOr1fkg (envelope-from ) for ; Mon, 09 Sep 2019 19:01:47 +0200 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=) Received: from web6.sd.eurovps.com (web6.sd.eurovps.com [77.235.54.103]) by mail.toke.dk (Postfix) with ESMTPS id F19BE6645BA for ; Mon, 9 Sep 2019 19:01:44 +0200 (CEST) Received: from [::1] (port=51050 helo=web6.sd.eurovps.com) by web6.sd.eurovps.com with esmtp (Exim 4.92) (envelope-from ) id 1i7N2t-002WgO-0C; Mon, 09 Sep 2019 20:01:43 +0300 Received: from out-3.smtp.github.com ([192.30.252.194]:40157) by web6.sd.eurovps.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92) (envelope-from ) id 1i7N2i-002WZL-Ho for flent-users@flent.org; Mon, 09 Sep 2019 20:01:38 +0300 Received: from github-lowworker-2ef7ba1.ac4-iad.github.net (github-lowworker-2ef7ba1.ac4-iad.github.net [10.52.16.66]) by smtp.github.com (Postfix) with ESMTP id F037A2C330F for ; Mon, 9 Sep 2019 10:00:51 -0700 (PDT) Date: Mon, 09 Sep 2019 10:00:51 -0700 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] flent: extremely high ping times on macOS (#178) X-BeenThere: flent-users@flent.org X-Mailman-Version: 2.1.27 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="===============6809840797084783328==" 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 --===============6809840797084783328== Content-Type: multipart/alternative; boundary="--==_mimepart_5d768543e1736_57e63fd113acd964132952"; charset=UTF-8 Content-Transfer-Encoding: 7bit ----==_mimepart_5d768543e1736_57e63fd113acd964132952 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Rich Brown writes: >> > 2. Why is there a discrepency between the > `--test-parameter=ping_hosts=...` reading (showing 30-38 msec in my > tests) and a separate, concurrent fping test (see original post, where > it was running 20-22 msec)? > >> Good question. IPv4 vs IPv6 maybe? > > I don't think so. Here's fping for both atl.richb-hanover.com (IPv4 only) and atl6 (IPv6)... > > ``` > bash-3.2$ fping -c 1000 atl.richb-hanover.com -D > [1568033075.420184] atl.richb-hanover.com : [0], 84 bytes, 40.4 ms (40.4 avg, 0% loss) > [1568033076.423893] atl.richb-hanover.com : [1], 84 bytes, 40.9 ms (40.6 avg, 0% loss) > [1568033077.426595] atl.richb-hanover.com : [2], 84 bytes, 41.7 ms (41.0 avg, 0% loss) > [1568033078.430768] atl.richb-hanover.com : [3], 84 bytes, 40.8 ms (40.9 avg, 0% loss) > ^C > bash-3.2$ fping -c 1000 atl6.richb-hanover.com -D -6 > [1568033063.252647] atl6.richb-hanover.com : [0], 64 bytes, 40.0 ms (40.0 avg, 0% loss) > [1568033064.254237] atl6.richb-hanover.com : [1], 64 bytes, 40.8 ms (40.4 avg, 0% loss) > [1568033065.257423] atl6.richb-hanover.com : [2], 64 bytes, 40.7 ms (40.5 avg, 0% loss) > [1568033066.261700] atl6.richb-hanover.com : [3], 64 bytes, 40.8 ms (40.6 avg, 0% loss) > ^C > atl6.richb-hanover.com : xmt/rcv/%loss = 4/4/0%, min/avg/max = 40.0/40.6/40.8 > ``` > You're not setting the period; does adding -p 200 make a difference? I suppose fping could be self-congesting if your link is very slow... -- 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/178#issuecomment-529572916 ----==_mimepart_5d768543e1736_57e63fd113acd964132952 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit Rich Brown <notifications@github.com> writes:

>> > 2. Why is there a discrepency between the
> `--test-parameter=ping_hosts=...` reading (showing 30-38 msec in my
> tests) and a separate, concurrent fping test (see original post, where
> it was running 20-22 msec)?
>
>> Good question. IPv4 vs IPv6 maybe?
>
> I don't think so. Here's fping for both atl.richb-hanover.com (IPv4 only) and atl6 (IPv6)...
>
> ```
> bash-3.2$ fping -c 1000 atl.richb-hanover.com -D
> [1568033075.420184] atl.richb-hanover.com : [0], 84 bytes, 40.4 ms (40.4 avg, 0% loss)
> [1568033076.423893] atl.richb-hanover.com : [1], 84 bytes, 40.9 ms (40.6 avg, 0% loss)
> [1568033077.426595] atl.richb-hanover.com : [2], 84 bytes, 41.7 ms (41.0 avg, 0% loss)
> [1568033078.430768] atl.richb-hanover.com : [3], 84 bytes, 40.8 ms (40.9 avg, 0% loss)
> ^C
> bash-3.2$ fping -c 1000 atl6.richb-hanover.com -D -6
> [1568033063.252647] atl6.richb-hanover.com : [0], 64 bytes, 40.0 ms (40.0 avg, 0% loss)
> [1568033064.254237] atl6.richb-hanover.com : [1], 64 bytes, 40.8 ms (40.4 avg, 0% loss)
> [1568033065.257423] atl6.richb-hanover.com : [2], 64 bytes, 40.7 ms (40.5 avg, 0% loss)
> [1568033066.261700] atl6.richb-hanover.com : [3], 64 bytes, 40.8 ms (40.6 avg, 0% loss)
> ^C
> atl6.richb-hanover.com : xmt/rcv/%loss = 4/4/0%, min/avg/max = 40.0/40.6/40.8
> ```
>

You're not setting the period; does adding -p 200 make a difference? I
suppose fping could be self-congesting if your link is very slow...

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