Messages in this thread | | | Date | Mon, 21 Jan 2002 13:59:12 -0500 | From | Chris Friesen <> | Subject | Re: [2.4.17/18pre] VM and swap - it's really unusable |
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yodaiken@fsmlabs.com wrote: > > On Mon, Jan 21, 2002 at 12:32:57PM -0500, Chris Friesen wrote: > > yodaiken@fsmlabs.com wrote: > > > > > So your claim is that: > > > Preemption improves latency when there are both kernel cpu bound > > > tasks and tasks that are I/O bound with very low cache hit > > > rates? > > > > > > Is that it? > > > > > > Can you give me an example of a CPU bound task that runs > > > mostly in kernel? Doesn't that seem like a kernel bug? > > > > cat /dev/urandom > /dev/null > > Don't see any of Daniel's postulated long latencies there. (Sorry, but > I'm having a hard time figuring out what is meant as a serious comment > here).
No, that one wasn't serious. And while it is CPU bound and mostly in the kernel, you're right that there are no long latencies to cause issues...
-- Chris Friesen | MailStop: 043/33/F10 Nortel Networks | work: (613) 765-0557 3500 Carling Avenue | fax: (613) 765-2986 Nepean, ON K2H 8E9 Canada | email: cfriesen@nortelnetworks.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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