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Date:      Sun, 19 Dec 1999 16:06:45 -0600
From:      "Richard Seaman, Jr." <dick@tar.com>
To:        "Ronald F. Guilmette" <rfg@monkeys.com>
Cc:        hackers@FreeBSD.ORG
Subject:   Re: Practical limit for number of TCP connections?
Message-ID:  <19991219160645.E317@tar.com>
In-Reply-To: <47931.945638475@monkeys.com>; from rfg@monkeys.com on Sun, Dec 19, 1999 at 01:21:15PM -0800
References:  <19991219145821.D317@tar.com> <47931.945638475@monkeys.com>

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On Sun, Dec 19, 1999 at 01:21:15PM -0800, Ronald F. Guilmette wrote:

> It sounds to me like each and every time there is a thread context switch,
> some code in the library may have to execute a (perhaps enormous) call to
> select() or else to poll().  Yes?

poll().  It used to use select().  And, not only at each thread
context switch, but each time it has to consider whether to
do a switch at all (eg. at the end of a timeslice).

-- 
Richard Seaman, Jr.           email: dick@tar.com
5182 N. Maple Lane            phone: 262-367-5450
Chenequa WI 53058             fax:   262-367-5852


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