Re: high load & poor interactivity on fast thread creation

From: Arnaud Installe (ainstalle@filepool.com)
Date: Fri Dec 01 2000 - 04:47:45 EST

On Thu, Nov 30, 2000 at 03:00:10PM -0800, David Lang wrote:
> try the 2.4 test kernels. I had a situation of poor performance with lots
> of processes and saw a dramatic improvement with the 2.4 kernel.

So what load average should I expect Linux versions 2.2 and 2.4 to perform
well under ? I'm wondering what would be the best way to solve this
problem: limit the number of processes created during a certain time span;
check if the load average isn't too high before creating a new thread (and
go to sleep if it isn't); or something else ?

Thanks very much BTW ! The list has always been very helpful. :-)

                                                                Arnaud

> > When creating a lot of Java threads per second linux slows down to a
> > crawl. I don't think this happens on NT, probably because NT doesn't
> > create new threads as fast as Linux does.
> >
> > Is there a way (setting ?) to solve this problem ? Rate-limit the number
> > of threads created ? The problem occurred on linux 2.2, IBM Java 1.1.8. 

-- 
Arnaud Installe						<ainstalle@filepool.com>

Man has never reconciled himself to the ten commandments.
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