RFR : 8231753: use more Posix functionality in aix os::print_os_info

[David Holmes]

Hi Matthias,

On 2/10/2019 10:40 pm, Baesken, Matthias wrote:
> Hello, please review the following small (mostly  AIX related)  change .
> 
> It replaces the AIX coding  in function
> void os::print_os_info(outputStream* st) { ... }
> 
> 
> for  uname and load average info  output  by os::Posix functionality.
> Additionally it slightly changes  os::Posix::print_load_average  function to handle  the return value of os::loadavg
> ( indicating  failure ) .

Might I make a slight suggestion here:

+     st->print("Failed to obtain load average");

as this is not an error message but still forms part of the report i.e. 
it will print:

load average:Failed to obtain load average

that a simpler

+     st->print(" Unavailable");

would suffice to give:

load average: Unavailable

Otherwise changes appear fine.

Thanks,
David

> Bug / webrev :
> 
> https://bugs.openjdk.java.net/browse/JDK-8231753
> 
> http://cr.openjdk.java.net/~mbaesken/webrevs/8231753.0/
> 
> 
> Thanks, Matthias
>