RFR: 7165755 OS Information much longer on linux than other platforms

[Nils Loodin]

Hey David!


> Ignoring Windows (with prints very little) I'd say it is the printing of /proc/meminfo that is the main difference. Not sure why printing that was necessary ... but if we are going to remove it I think we need to know why it was added.
Yes, that's the reason.
Note that nothing is removed. The method still prints exactly the same info, but I introduced another method to print briefer info, to be kinder to tool developers.

I really don't want to change the output for say, hs_err files, where I believe this info is used.

> 
>> This can make it hard for tool writers to get a summary that look good and similar for multiple platforms (sizing of gui fields, having to parse info in the tool code etc)
>> Lookin at the code, it's in some serious need of refactoring. It would be nice with a method to get a "brief" os info for these kinds of tools that looks similar on all platforms.
>> 
>> This is my suggested change:
>> http://cr.openjdk.java.net/~nloodin/7165755/webrev.00/
> 
> Seems to me some of this could be factored into the top-level OS class if we shoehorn Windows into the same shape as the other OSes ;-)
This was my first attempt also, but then a lot of empty windows-methods ensued, which was kind of ugly. 

> Or at least perhaps put some of the common stuff into os_posix.cpp ?
There's a thought!
I'll investigate that route, it could get things to look nicer.


> Cheers,
> David
Regards,
Nils Loodin