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 D3uAIf5Jcl1OVAAAOr1fkg (envelope-from ) for ; Fri, 06 Sep 2019 13:58:54 +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=) Authentication-Results: mail.toke.dk; dkim=fail reason="signature verification failed" (1024-bit key) header.d=github.com header.i=@github.com header.b=cCU2gKaj Received: from web6.sd.eurovps.com (web6.sd.eurovps.com [77.235.54.103]) by mail.toke.dk (Postfix) with ESMTPS id 6055A662694 for ; Fri, 6 Sep 2019 13:58:51 +0200 (CEST) Received: from [::1] (port=36758 helo=web6.sd.eurovps.com) by web6.sd.eurovps.com with esmtp (Exim 4.92) (envelope-from ) id 1i6Ct8-009Xfx-CF; Fri, 06 Sep 2019 14:58:50 +0300 Received: from out-6.smtp.github.com ([192.30.252.197]:46741) by web6.sd.eurovps.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92) (envelope-from ) id 1i6Csy-009XYp-8p for flent-users@flent.org; Fri, 06 Sep 2019 14:58:46 +0300 Date: Fri, 06 Sep 2019 04:57:59 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=github.com; s=pf2014; t=1567771079; bh=OrUZRi/7wkDQyWp+Fdnf3px4CeMBZD/wZHXPzitSX6c=; h=Date:From:Reply-To:To:Cc:Subject:List-ID:List-Archive:List-Post: List-Unsubscribe:From; b=cCU2gKajybnSFuyt8OUjRhQkhgQ0zndD//6/3DK2NWVjCXxNy0n6ZhpPPdHrxTcDz mUqjRYFBHGMCWvoTcc4aiKmFAqD/OfPprKG6dh4taeR8My7nVvOsqq+RBrrxKl7zcD 4jIzRczojU0H9EWw5ztw93IWxbQMQYHmwbwKIpis= From: Rich Brown To: tohojo/flent Message-ID: Mime-Version: 1.0 Precedence: list X-GitHub-Sender: richb-hanover X-GitHub-Recipient: flent-users X-GitHub-Reason: subscribed X-Auto-Response-Suppress: All X-GitHub-Recipient-Address: flent-users@flent.org Subject: [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="===============1426877187092791415==" 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 --===============1426877187092791415== Content-Type: multipart/alternative; boundary="--==_mimepart_5d7249c7a5542_63fa3f91cf4cd95c30618e"; charset=UTF-8 Content-Transfer-Encoding: 7bit ----==_mimepart_5d7249c7a5542_63fa3f91cf4cd95c30618e Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Using Flent 1.3.0 with fping 4.2 on macOS 10.2.6: I see high ping times (>100 msec in the following report) despite the fact that actual ping times (measured by fping during the flent test) are 20-30 msec, and none higher that 47 msec. (I am on 7mbps/768kbps DSL, so the 6.95mbps seems accurate.) Here is the data file. [tcp_ndown-2019-09-06T074544.888052.Rich_Test.flent.gz](https://github.com/tohojo/flent/files/3583797/tcp_ndown-2019-09-06T074544.888052.Rich_Test.flent.gz) What other information could I provide? Thanks. ``` bash-3.2$ flent -x -H flent-fremont.bufferbloat.net -t "Rich_Test" --te=download_streams=4 tcp_ndown Started Flent 1.3.0 using Python 2.7.15. Starting tcp_ndown test. Expected run time: 70 seconds. Data file written to ./tcp_ndown-2019-09-06T074544.888052.Rich_Test.flent.gz. Summary of tcp_ndown test run from 2019-09-06 11:45:44.888052 Title: 'Rich_Test' avg median # data pts Ping (ms) ICMP : 104.03 105.00 ms 350 TCP download avg : 1.71 1.74 Mbits/s 300 TCP download sum : 6.83 6.95 Mbits/s 300 TCP download::1 : 1.55 1.56 Mbits/s 281 TCP download::2 : 1.85 1.83 Mbits/s 282 TCP download::3 : 1.53 1.54 Mbits/s 282 TCP download::4 : 1.91 1.90 Mbits/s 287 bash-3.2$ ``` ``` bash-3.2$ fping --version fping: Version 4.2 fping: comments to david@schweikert.ch bash-3.2$ fping -c 1000 gstatic.com -D [1567770338.594778] gstatic.com : [0], 84 bytes, 20.7 ms (20.7 avg, 0% loss) [1567770339.600662] gstatic.com : [1], 84 bytes, 21.7 ms (21.2 avg, 0% loss) [1567770340.602339] gstatic.com : [2], 84 bytes, 21.5 ms (21.3 avg, 0% loss) [1567770341.605205] gstatic.com : [3], 84 bytes, 22.2 ms (21.5 avg, 0% loss) [1567770342.608899] gstatic.com : [4], 84 bytes, 21.0 ms (21.4 avg, 0% loss) [1567770343.613397] gstatic.com : [5], 84 bytes, 21.4 ms (21.4 avg, 0% loss) [1567770344.618612] gstatic.com : [6], 84 bytes, 21.5 ms (21.4 avg, 0% loss) [1567770345.618789] gstatic.com : [7], 84 bytes, 20.8 ms (21.3 avg, 0% loss) ... ``` -- 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 ----==_mimepart_5d7249c7a5542_63fa3f91cf4cd95c30618e Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit

Using Flent 1.3.0 with fping 4.2 on macOS 10.2.6:

I see high ping times (>100 msec in the following report) despite the fact that actual ping times (measured by fping during the flent test) are 20-30 msec, and none higher that 47 msec. (I am on 7mbps/768kbps DSL, so the 6.95mbps seems accurate.)

Here is the data file. tcp_ndown-2019-09-06T074544.888052.Rich_Test.flent.gz

What other information could I provide? Thanks.

bash-3.2$ flent -x -H flent-fremont.bufferbloat.net -t "Rich_Test" --te=download_streams=4 tcp_ndown
Started Flent 1.3.0 using Python 2.7.15.
Starting tcp_ndown test. Expected run time: 70 seconds.
Data file written to ./tcp_ndown-2019-09-06T074544.888052.Rich_Test.flent.gz.

Summary of tcp_ndown test run from 2019-09-06 11:45:44.888052
  Title: 'Rich_Test'

                             avg       median          # data pts
 Ping (ms) ICMP   :       104.03       105.00 ms              350
 TCP download avg :         1.71         1.74 Mbits/s         300
 TCP download sum :         6.83         6.95 Mbits/s         300
 TCP download::1  :         1.55         1.56 Mbits/s         281
 TCP download::2  :         1.85         1.83 Mbits/s         282
 TCP download::3  :         1.53         1.54 Mbits/s         282
 TCP download::4  :         1.91         1.90 Mbits/s         287
bash-3.2$

bash-3.2$ fping --version
fping: Version 4.2
fping: comments to david@schweikert.ch

bash-3.2$ fping -c 1000 gstatic.com -D
[1567770338.594778] gstatic.com : [0], 84 bytes, 20.7 ms (20.7 avg, 0% loss)
[1567770339.600662] gstatic.com : [1], 84 bytes, 21.7 ms (21.2 avg, 0% loss)
[1567770340.602339] gstatic.com : [2], 84 bytes, 21.5 ms (21.3 avg, 0% loss)
[1567770341.605205] gstatic.com : [3], 84 bytes, 22.2 ms (21.5 avg, 0% loss)
[1567770342.608899] gstatic.com : [4], 84 bytes, 21.0 ms (21.4 avg, 0% loss)
[1567770343.613397] gstatic.com : [5], 84 bytes, 21.4 ms (21.4 avg, 0% loss)
[1567770344.618612] gstatic.com : [6], 84 bytes, 21.5 ms (21.4 avg, 0% loss)
[1567770345.618789] gstatic.com : [7], 84 bytes, 20.8 ms (21.3 avg, 0% loss)
...

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