About Transparent Superpages and Non-transparent superapges

[Ivan Voras]

On 17/09/2013 17:01, Patrick Dung wrote:
> 
> 
> Hello,
> 
> 
> I have posted the question in freebsd-questions but have not get feedback, so I tried to asked in here.
> 
> 1.
> Transparent Superpages was in FreeBSD for a few years.
> I would like to know if there is any benchmark or real world performance experience about this setting.
> 
> 2.
> I have seen somewhere that non-transparent superpages was being developed in HEAD too.
> Any insight on it? Please correct me if it is not the case.

By "non-transparent" do you mean explicit huge pages API which allows
them to be allocated on-demand rather than heuristically, such as was
implemented in Linux for at least 8 years (http://goo.gl/8qZX4D,
https://lwn.net/Articles/375096/) and supported by major software
products (http://goo.gl/prxjjo, http://goo.gl/fQOLwO,
http://goo.gl/pr7Tbb, http://goo.gl/Y9qtWk, http://goo.gl/M0l7LL, etc.)?
I haven't heard about it (but I hope I'm wrong :) ).



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