Walt,

would it be possible to get a statistics log from such a run? You'd need to build a debug or profile version of at least VBoxVMM.so, VMMR0.r0 & VMMGC.gc. A debug log is then created in the directory where you launch the VM.

So far I'm unable to reproduce what you're seeing.

Thanks!

Sander

On 9/14/2010 12:00 AM, walt wrote:
On 09/13/2010 12:31 PM, Frank Mehnert wrote:
On Monday 13 September 2010, walt wrote:
On 09/13/2010 05:49 AM, Frank Mehnert wrote:
On Sunday 12 September 2010, walt wrote:
I'm using the latest OSE.svn, and I'm seeing Windows 7 guests running at
one-third the usual speed (linux host).

We also had a check of the time which is used for a Windows 7
installation and were not able to observe any differences between 3.2.8 and current trunk. We tested this on an Intel Xeon E5345 (2 x 4 cores) on
Windows Server 2008.

I found the guilty commit:

------------------------------------------------------------------------ r32410 | vboxsync | 2010-09-10 07:19:33 -0700 (Fri, 10 Sep 2010) | 2 lines

Got rid of unnecessary dirty page flush in InvalidatePage. (NOTE: high risk
change)
------------------------------------------------------------------------

Thanks for this information! Does your host have an Intel CPU or an AMD CPU?

AMD Athlon(tm) 64 X2 Dual Core Processor 4200+

I've found an obvious bug in git-svn during this whole process, and I'd like to file a helpful bug report. If you can spare a minute or two to give me
your educated guess about it, I'd be very grateful.

The clone I made of your svn repo using git-svn won't compile, and to me the
error message doesn't make any sense:

kBuild: Compiling RuntimeR3 - /U/wa1ter/src/vbox.git/src/VBox/Runtime/common/misc/buildconfig.cpp /U/wa1ter/src/vbox.git/src/VBox/Runtime/common/misc/buildconfig.cpp: In function ‘uint32_t RTBldCfgRevision()’: /U/wa1ter/src/vbox.git/src/VBox/Runtime/common/misc/buildconfig.cpp:39: error: ‘ev’ was not declared in this scope

The source file is identical between your svn repo and my git-svn repo, so it
seems git-svn has messed up some other file(s) somewhere.

Any wild guesses about where I should look in my git-svn repo to find the real
source of the breakage?

Many thanks for your help!



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Sander van Leeuwen | Senior Staff Engineer, VirtualBox
Oracle Virtualization

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