[Xen-ia64-devel] kernel build performance data with dom0_VP mode

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Subject:	[Xen-ia64-devel] kernel build performance data with dom0_VP mode open
From:	"Zhang, Jingke" <jingke.zhang@xxxxxxxxx>
Date:	Mon, 22 May 2006 15:48:57 +0800
Delivery-date:	Mon, 22 May 2006 00:49:24 -0700
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Thread-topic:	kernel build performance data with dom0_VP mode open

Hi all,

I have done kernel build with dom0_vp mode open to compare with it close. The specific data as following:

Environment :

Memory:768M

Platform : tiger4

Cpu : Montecito C1 stepping

Compile cmdline : time make >/dev/null 2>&1

Configuration file : @arch/ia64/config/tiger_defconfig

time Real user sys

Cset 10027 (with dom0_vp open): 14m48.377s 13m43.960s 0m51.670s

Cset 10022 (with dom0_vp closed): 14m5.752s 13m13.200s 0m39.260s

Native : 13m55.572s 13m4.366s 0m35.205s

Performance :

Cset 10022: dom0/native =98.7%

Cset 10027:dom0/native=94.1%

From the result, we can see when dom0_vp mode open, the performance of KB has 4.6% degradation.

Thanks

Zhang Jingke

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[Xen-ia64-devel] kernel build performance data with dom0_VP mode open