If anybody considers upgrading to Windows Vista in the very near
future, think twice!
Benchmarks, comparing XP against current Vista and pointers to more
in-depth articles:
<http://www.tomshardware.co.uk/2007/01/30/xp-vs-vista-uk/>
Summary:
* Most apps (at least the ones that run) are equally fast or slightly
slower wrt. XP (between -10% and +3% compared to XP).
* Video processing and encoding is significantly slower: -18% to -24%
* OpenGL performance (== expected Psychtoolbox performance) is a
*disaster*: -90% to -98% wrt. to XP.
No reason to panic, of course. None of the Microsoft OS was an
improvement in speed, performance or realtime behaviour, this is
expected. The OpenGL performance issues (as many other graphics
limitations listed in their release notes, e.g., multi-display support
and stereo) will get resolved soon in NVidias and ATIs upcoming driver
releases, bringing performance back to the old level. I'd expect
proper driver updates in the next couple of weeks.
Just a reminder that there's no reason to run into a store and install
it immediately on your productivity machines, unless you are forced to.
Feedback of early adopters about PTB performance on Vista is of course
welcome.
-mario
future, think twice!
Benchmarks, comparing XP against current Vista and pointers to more
in-depth articles:
<http://www.tomshardware.co.uk/2007/01/30/xp-vs-vista-uk/>
Summary:
* Most apps (at least the ones that run) are equally fast or slightly
slower wrt. XP (between -10% and +3% compared to XP).
* Video processing and encoding is significantly slower: -18% to -24%
* OpenGL performance (== expected Psychtoolbox performance) is a
*disaster*: -90% to -98% wrt. to XP.
No reason to panic, of course. None of the Microsoft OS was an
improvement in speed, performance or realtime behaviour, this is
expected. The OpenGL performance issues (as many other graphics
limitations listed in their release notes, e.g., multi-display support
and stereo) will get resolved soon in NVidias and ATIs upcoming driver
releases, bringing performance back to the old level. I'd expect
proper driver updates in the next couple of weeks.
Just a reminder that there's no reason to run into a store and install
it immediately on your productivity machines, unless you are forced to.
Feedback of early adopters about PTB performance on Vista is of course
welcome.
-mario