From: John Richard Moser <nigelenki@comcast.net>
To: Arjan van de Ven <arjan@infradead.org>
Cc: Chris Friesen <cfriesen@nortel.com>, linux-kernel@vger.kernel.org
Subject: Re: Can context switches be faster?
Date: Thu, 12 Oct 2006 16:36:54 -0400 [thread overview]
Message-ID: <452EA766.80307@comcast.net> (raw)
In-Reply-To: <1160684954.3000.473.camel@laptopd505.fenrus.org>
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Arjan van de Ven wrote:
>> ther uniprocessor machines.
>> That's a load more descriptive :D
>>
>> 0.890 uS, 0.556uS/cycle, that's barely 2 cycles you know. (Pentium M)
>> PPC performs similarly, 1 cycle should be about 1uS.
>>
>>> Chris
>
> you have your units off; 1 cycle is 1 nS not 1 uS (or 0.556 nS for the
> pM)
Ah, right right. Nano is a billion, micro is a million. How did I get
that mixed up.
So that's barely two THOUSAND cycles. Which is closer to what I
expected (i.e., not instant)
>
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next prev parent reply other threads:[~2006-10-12 20:36 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-12 15:44 Can context switches be faster? John Richard Moser
2006-10-12 15:53 ` John Richard Moser
2006-10-12 17:19 ` Russell King
2006-10-12 18:25 ` John Richard Moser
2006-10-12 18:37 ` Arjan van de Ven
2006-10-12 18:56 ` John Richard Moser
2006-10-12 19:02 ` Arjan van de Ven
2006-10-13 11:05 ` James Courtier-Dutton
2006-10-13 14:51 ` Chase Venters
2006-10-12 18:20 ` Phillip Susi
2006-10-12 18:29 ` John Richard Moser
2006-10-13 2:53 ` Andrew James Wade
2006-10-13 5:29 ` John Richard Moser
2006-10-13 16:56 ` Andrew James Wade
2006-10-13 17:24 ` John Richard Moser
2006-10-12 19:57 ` Chris Friesen
2006-10-12 20:23 ` John Richard Moser
2006-10-12 20:29 ` Arjan van de Ven
2006-10-12 20:36 ` John Richard Moser [this message]
2006-10-12 20:35 ` Jeremy Fitzhardinge
2006-10-13 23:32 ` Andreas Mohr
2006-10-13 23:47 ` David Lang
2006-10-14 0:14 ` Jeremy Fitzhardinge
2006-10-14 0:30 ` Alan Cox
2006-10-14 0:14 ` Jeremy Fitzhardinge
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