Their efforts in removing "Jank" from the UI thread seem to have paid off.
http://en.wikipedia.org/wiki/XOR_swap_algorithm
This maybe wasn't the best example since XOR swaps are rarely useful anyway. I suspect that other things like word (mis)alignment and varying cache miss costs may be a factor for different processors.
Gentoo claims that picking e.g. core2 over nocona can boost performance by 15% (which seems a bit much to me), so picking the right x86_64 variant is still something that is considered. Not something I worry about though, unless I am compiling from source anyway.
For example, I once contacted a author of a paper basically saying "I read the paper you wrote on a utility to improve security. It seems to me that your utility could also be used to improve performance as well. Could I play with the utility?". Their response was "I wrote that a few years back. I think I lost the code." Other researchers have similar difficulties when trying to perform meta-studies based on other researchers data. This could have been avoided if submitting raw data and code was the norm. These days there would be almost zero-cost in submitting raw-data in electronic form along with almost every manuscript submitted for peer-review and publication.
Everyone is so paranoid about the AP. I am sure they have ensured that they have rights to distribute the content.
Anyone one tried pasting in the leaked Windows source code? According to their pricing scheme its $100 for a "For profit" license to post the code on a webpage. Maybe a little overpriced, but at least it's less than the cost for a single use binary at my local store.
The turbo feature works by routing all your non https content via compression servers, which can ofcourse cause slowdowns: http://www.downloadsquad.com/2009/03/13/opera-10-alpha-now-includes-opera-turbo-compression/
This appears to be lossy compression that reduces image quality... Hopefully pretty much all html is compressed at the source these days: http://www.webreference.com/internet/software/servers/http/compression/
I just note that VirtualBox has a "seamless" mode which makes (2) invalid. It still behaves differently than a native, e.g. when a windows app has focus I have a second panel. However I "can cut/paste between them, and put them in a beside each other and so on."
He has not acquired a fortune; the fortune has acquired him. -- Bion