From owner-freebsd-questions@FreeBSD.ORG Sat Sep 28 06:52:26 2013 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 93822C18 for ; Sat, 28 Sep 2013 06:52:26 +0000 (UTC) (envelope-from talayeh.asadi@gmail.com) Received: from mail-qc0-x22a.google.com (mail-qc0-x22a.google.com [IPv6:2607:f8b0:400d:c01::22a]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 56F4C29D5 for ; Sat, 28 Sep 2013 06:52:26 +0000 (UTC) Received: by mail-qc0-f170.google.com with SMTP id m20so2354009qcx.15 for ; Fri, 27 Sep 2013 23:52:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:reply-to:sender:from:date:message-id:subject:to :content-type; bh=TBkN22V9UnpyZB5s6ofBs9TqWwHWnAJLAcyT89qGAj4=; b=HaW55RKsf6LBBrGqvlyQh4KrIXs++HO+emcpsMxzzc1y4J8Q05gD5H4bf/WMc3Sw4n v+WtA/vsbSX7blnZkEOh1kYtrWz38FGLKx5x+Cy5mqniTOf/OQcvauABTT/OX/BqUYOY pbvJkCmi1JFI8KGjUU1uyw+iiULYcCidbwMb6tHvhb8EkaunQRn7MhIsQ88TJoZpOOLh q/CpZHDz2sEuQbaJJCKf6llBNBaMNAqkFn0wL0Hh9It21cR8Z6M3HoCB3hrd1xa8tVuD knUc1zX5e3IR+ZipKWgGh3IXwRcHhZSd4D26PCFM33J2/vk+NTN2ctHThrOHxFlWZEEb ARjQ== X-Received: by 10.49.51.67 with SMTP id i3mr14524137qeo.8.1380351145513; Fri, 27 Sep 2013 23:52:25 -0700 (PDT) MIME-Version: 1.0 Sender: talayeh.asadi@gmail.com Received: by 10.49.117.100 with HTTP; Fri, 27 Sep 2013 23:52:05 -0700 (PDT) From: takCoder Date: Sat, 28 Sep 2013 10:22:05 +0330 X-Google-Sender-Auth: VJlxfVKeAIcIj9mjbRAyFEkUKnk Message-ID: Subject: Throughput test with iperf... To: FreeBSD Questions Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: tak.official@gmail.com List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 28 Sep 2013 06:52:26 -0000 hi everyone, this might be a bit off-topic but i am really confused and in need of your helps.. :( i need to understand what exactly iperf does while testing network throughput? i'm trying to run a throughput+frame loss test on a router using iperf, and i am really confused with the definitions given for throughput and packet-loss and iperf output.. as i have seen through my searches, throughput is the maximum transfer rate at which we have no packet loss, so i thought i have to rerun iperf for different transfer rate(in udp test), so i reach maximun rate while having no drops... but i have seen test videos in which they ran iperf once, with maximum bandwidth of the line, and just used the reported throughput and packet loss as the required result! what's on? does iperf calculate the throughput independent from packet-loss? and why is it reporting it named as bandwidth?? thank you all.. Kind regards, takcoder