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Date:      Wed, 28 Dec 2005 21:00:04 -0800
From:      Jason Evans <jasone@freebsd.org>
To:        David Xu <davidxu@freebsd.org>
Cc:        freebsd-current@freebsd.org
Subject:   Re: New malloc ready, take 42
Message-ID:  <32729773-B07C-4AEE-92D0-62ACE0E3AFEB@freebsd.org>
In-Reply-To: <43B36B83.7080404@freebsd.org>
References:  <E1E22E2D-A6D5-49CC-9649-C37C50F0443B@freebsd.org> <43B36B83.7080404@freebsd.org>

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On Dec 28, 2005, at 8:52 PM, David Xu wrote:
> Jason Evans wrote:
>
>> So, how about it?  Is jemalloc ready to go in now?
>> Thanks,
>> Jason
>
> I have tested super-smack with your patch on my Pentium-D machine:
> CPU   : P4 dual-core 2.8Ghz
> Memory: 1G bytes
> I am using libthr.
>
> phkmalloc can reach about 21000 query-per-s.
> jemalloc can only reach about 15000 query-per-s,
> about 28% performance is dropped.

That is a much different result than Kris Kennaway got on a dual-dual  
Opteron system, as well as my results on a 3.2 GHz P4.  Can you  
please provide details on what version of the jemalloc patch you  
used, which MALLOC_OPTIONS flags you used, what parameters you  
specified to super-smack, etc.?

A Pentium-D should behave similarly to two single-core CPUs, right?

Thanks,
Jason




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