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Date:      Thu, 2 Jul 1998 11:29:54 -0400 (EDT)
From:      "Ron G. Minnich" <rminnich@Sarnoff.COM>
To:        hackers@FreeBSD.ORG
Subject:   RE: timeout granularity (was: Re: Console driver...)
Message-ID:  <Pine.SUN.3.91.980702112908.1162B-100000@terra>
In-Reply-To: <C50B6FBA632FD111AF0F0000C0AD71EEFF8B45@dcn71.dcn.att.com>

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On Thu, 2 Jul 1998 sbabkin@dcn.att.com wrote:
> The measurements
> have shown that handling 115200 bps transfer caused 11520
> interrupts per second and ate up about 20%  CPU of 20 MHz 386
> in the interrupt handler. The OS was SCO Unix 3.2.1.

Interesting. One the 486/25, linux 1.0.xx, the 10k interrupts also seemed to
eat about 20% of the machine.

ron

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