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Date:      Fri, 5 Jan 2007 17:39:16 -0800 (PST)
From:      Jeff Roberson <jroberson@chesapeake.net>
To:        David Xu <davidxu@freebsd.org>
Cc:        Kip Macy <kip.macy@gmail.com>, current@freebsd.org
Subject:   Re: ULE 2.0
Message-ID:  <20070105173835.S586@10.0.0.1>
In-Reply-To: <20070105154450.Y586@10.0.0.1>
References:  <20070104005625.D1508@10.0.0.1> <459CCBA1.40305@freebsd.org> <b1fa29170701041131o287ee0cflda63eae9528f68dc@mail.gmail.com> <200701050749.49058.davidxu@freebsd.org> <20070104155755.Y552@10.0.0.1> <20070104163449.D552@10.0.0.1> <459DB871.1050109@freebsd.org> <20070105154450.Y586@10.0.0.1>

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On Fri, 5 Jan 2007, Jeff Roberson wrote:

> On Fri, 5 Jan 2007, David Xu wrote:
>
>> 
>>> Anyway, thanks for the pointer Xu.  I may hack this up and compare it to 
>>> ULE's current balancing.
>> 
>> Yesterday, I have tested super-smack benchmark on 2-cpu machine, ULE
>> decreased performance about 40%, this might be a regression though.
>
> I just fixed a regression in the load balancer.  On my 8way opteron ULE is 
> now 22% faster than 4BSD for select-key.smack with 32 threads.  This is for 
> both KSE and libthr.  libthr is of course significantly faster overall.  I 
> believe I can improve this even more by borrowing some tricks from solaris.

An initial implementation of what I felt were the most significant parts 
of the solaris algorithm pushed it up to 50% faster than 4BSD.  I probably 
won't have this ready to commit for a few days however.

Thanks,
Jeff.

>
> Jeff
>
>> 
>>> 
>>> Cheers,
>>> Jeff
>>> 
>> 
>> Regards,
>> David Xu
>> 
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