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Date:      Mon, 8 Aug 2005 13:55:05 +0200
From:      Suleiman Souhlal <ssouhlal@FreeBSD.org>
To:        Xin LI <delphij@frontfree.net>
Cc:        gnn@FreeBSD.org, performance@FreeBSD.org
Subject:   Re: Tarball of ported libmicro 0.3 available for testing...
Message-ID:  <D04C30EE-1CF6-4288-9605-B9216A986C91@FreeBSD.org>
In-Reply-To: <1123466477.767.2.camel@spirit>
References:  <m2hde3b3k8.wl%gnn@neville-neil.com> <01F3BA1C-C7C6-41C7-AFE8-675FA972D1A3@FreeBSD.org> <1123466477.767.2.camel@spirit>

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Hello,

On Aug 8, 2005, at 4:01 AM, Xin LI wrote:

> =E5=9C=A8 2005-08-08=E4=B8=80=E7=9A=84 03:15 +0200=EF=BC=8CSuleiman =
Souhlal=E5=86=99=E9=81=93=EF=BC=9A
>
>> Hello,
>>
>> On Aug 6, 2005, at 3:25 PM, gnn@freebsd.org wrote:
>>
>>
>>> I plan to make a  port of this this weekend, but would like some
>>> feedback on this set of benchmarks.  If they're useful I think we
>>> should make them part of a nightly benchmarking strategy.
>>>
>>
>> In case you're interested, I ran it on a dual p4 xeon (without
>> HyperThreading) from the netperf cluster, to compare the performance
>> of RELENG_5, RELENG_6 and HEAD.
>> You can find the results at http://people.freebsd.org/~ssouhlal/=20
>> stuff/
>> compare_tiger-3.html .
>> It shows that RELENG_6 and HEAD are (in these tests) almost never
>> slower than RELENG_5, and often more than 20% faster.
>>
>
> Great work!  BTW.  Is there any clue about why pthread_128 looks =20
> slower
> than RELENG_5 and then recovered in HEAD?

I'm not sure, but I ran the benchmark on the same kernel several =20
times (after rebooting), and as gnn noticed, it seems like there is a =20=

high variance for the tests that have 128k size things. Something =20
must be going on at those sizes.
The results are at http://people.freebsd.org/~ssouhlal/stuff/=20
compare_HEAD.html

--
Suleiman Souhlal     | ssouhlal@vt.edu
The FreeBSD Project  | ssouhlal@FreeBSD.org




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