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Re: Giving priority to messages

To: Donald Becker <becker@xxxxxxxxx>
Subject: Re: Giving priority to messages
From: Henner Eisen <eis@xxxxxxxxxxxxx>
Date: 25 Sep 2000 20:37:15 +0200
Cc: netdev@xxxxxxxxxxx
In-reply-to: Donald Becker's message of "Tue, 19 Sep 2000 22:25:36 -0400 (EDT)"
References: <Pine.LNX.4.10.10009192217060.1031-100000@xxxxxxxxxxxxx>
Sender: owner-netdev@xxxxxxxxxxx
>>>>> "Donald" == Donald Becker <becker@xxxxxxxxx> writes:

    Donald> This is one of the reasons for drivers to keep their Tx
    Donald> queues to a reasonable length.  Two years ago an
    Donald> almost-always-sufficient Tx queue length was between 6 and
    Donald> 10, so most of my bus-master drivers use a queue length of
    Donald> 10.  Ten 1500 byte packets at 10Mbps is still not too
    Donald> long, but ten 60 byte packets (approx. 96 byte periods on
    Donald> the wire) isn't very long at 100Mbps.

Would it make sense to use the data size (the accumulated
skb->len of the sk_buffs in a packet scheduler´s queue) instead of the
current tx queue length (number of sk_buffs) for mesuring the packet
scheduler´s queues?


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