Thread: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
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freemangordon is offline freemangordon
2012-06-12 , 11:02
Posts: 3,074 | Thanked: 12,964 times | Joined on Mar 2010 @ Sofia,Bulgaria
#41
Originally Posted by lma View Post
An analogy, not a direct comparison :-) A lot of the same underlying issues apply, ie you won't see much of the potential performance improvement until you have converted most of the software stack.
Agree.

Well, if you have a thumb2 binary issuing calls to the standard (non-thumb) libc etc, there's going to be switching. Or am I missing something?
If you use VFP then there is no difference whether it is pure ARM, ot thumb2, in either case you have a penalty if the code is not well optimized. The major difference between thumb and thumb2 is that thumb2 is almost as fast as ARM, and AFAIK there is no penalty for mixing ARM/thumb2 code.
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