Date: Fri, 23 May 2003 16:01:40 +0200 From: jeremie le-hen <le-hen_j@epita.fr> To: Michael Sierchio <kudzu@tenebras.com> Cc: ipfw@freebsd.org Subject: Re: Understanding queue size Message-ID: <20030523140140.GB24992@carpediem.epita.fr> In-Reply-To: <3ECE21BD.7060308@tenebras.com> References: <20030523105030.GA24992@carpediem.epita.fr> <3ECE21BD.7060308@tenebras.com>
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> Why assume that the default values need adjusting? I'm trying to tune some parameters like queue size in order to reduce delays with interactive traffic while uploading. I tried to set various queue size with a pipe which bandwidth is 125KBit/s, from 2KBytes to 1000KBytes, and in fact I saw almost no responsivness variation. I currently use a queue size of 76KBytes, in order to send it in about 5 seconds at 125KBit/s. How do I know it's a good value ? I'm pretty sure there are some rules or some formulas which dictates how to get a good compromise between bandwidth and reactivy, but unfortunatelly, I don't know where to find them. Regards, -- Jeremie aka TtZ/TataZ jeremie.le-hen@epita.fr
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