From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Svein Ove Aas" Subject: Re: Dropped packets - tcpdump Date: Fri, 8 Feb 2008 18:17:14 +0100 Message-ID: <221b53ab0802080917v34e2d7bai44bcfc50ac101bd6@mail.gmail.com> References: <1202299652.5984.17.camel@wtprcwbti01002> <221b53ab0802061042x281d8287j61d620bf85e4c09e@mail.gmail.com> <1202324603.5984.50.camel@wtprcwbti01002> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=kdEK9wvNvf64Bcpt9MQcwxPbxfKHLBye2GaG591cv9Q=; b=MQ++gHQBCnRGIR4Zb0xXOCQhOV2q3CgTdxFxWIfkLFljxC4OSt8KctKB9FkuBbC8omR+Fqg/wRqe/V18XB7vUy7R05MAxz/D80a/QEMDeHz8OIA/LvBeNDW9UXPMgd3cGWoE2TxS2H81GaSWdh4SmqAQVnPw885Z10/hBlQpnt4= In-Reply-To: <1202324603.5984.50.camel@wtprcwbti01002> Content-Disposition: inline Sender: linux-net-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: cloves.costa@m2sys.com.br Cc: Linux Net ML , Linux-Admin ML On Feb 6, 2008 8:03 PM, Cloves Pereira Costa Jr wrote: > Hi... > > My machine is a DELL PowerEdge 2500 with 2 CPU PIII 1 GHz, 2 GB RAM, 250 > GB HD SCSI... This configuration is slow? > For some purposes, yes. How many packets a second were you handling, and how? How large were they/how many kilobytes/second? SSH session, perhaps? > One more question, the fact that tcpdump drop the packets don't imply > that theese packets are being dropped also in the comunication? > It doesn't imply anything either way. They may be being dropped, or not, depending on the actual system load and interface capacity; tcpdump uses a lot more CPU time than the normal path.