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Re: Linux V2.1.128 localhost performance

To: root@xxxxxxxxxxxxxxxxxx
Subject: Re: Linux V2.1.128 localhost performance
From: alan@xxxxxxxxxxxxxxxxxxx (Alan Cox)
Date: Fri, 20 Nov 1998 15:13:39 +0000 (GMT)
Cc: alan@xxxxxxxxxxxxxxxxxxx, tigran@xxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxxx
In-reply-to: <Pine.LNX.3.95.981120085238.1196C-100000@xxxxxxxxxxxxxxxxxx> from "Richard B. Johnson" at Nov 20, 98 08:55:43 am
Sender: owner-linux-kernel@xxxxxxxxxxxxxxxx

> throughput off from chargen via localhost runs at a high speed for
> about 1/2 second, then dribbles down to 40-50 kilobytes per second.
> This makes it difficult to test the performance of network thingies.

Thats a TCP/scheduling bug in 2.1.x - someone modified the algorithms
used to schedule wakeups without really understanding the "deep magic"
in the 2.0.x one. Im assuming it'll get fixed


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