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) ------------------------------------------------------------------------ I guess this must be a different problem than the one Huihong Luo reported because this is a very recent commit. The difference is actually more like four times slower: 64-bit Windows7 on 64-bit linux host normally takes 27 seconds from power-on to login prompt, but after this commit it takes 74 seconds. Not negligible. I don't have any Windows hosts I can test -- I don't need a Windows machine any longer thanks to you guys :) _______________________________________________ vbox-dev mailing list [email protected] http://vbox.innotek.de/mailman/listinfo/vbox-dev
