RFR (S): 7117303: VM uses non-monotonic time source and complains that it is non-monotonic

[John Cuthbertson]

Hi Everyone,

I have updated the comments based upon feedback from David Holmes. A new 
webrev can be found at: http://cr.openjdk.java.net/~johnc/7117303/webrev.1/

Thanks,

JohnC

On 12/7/2011 9:59 AM, John Cuthbertson wrote:
> Hi Everyone,
>
> Can I have a couple of volunteers review the changes for this CR? The 
> webrev can be found at: 
> http://cr.openjdk.java.net/~johnc/7117303/webrev.0/.
>
> Summary:
> I replaced the calls to os::javaTimeMillis() in the GC where we expect 
> monotonicity with calls os::javaTimeNanos(), converting the result to 
> milliseconds. os::javaTimeNanos(), at least on some configurations, 
> does guarantee monotonicity and so is a better alternative. The 
> changes in the os_<*> files are to make use of the named conversion 
> constants I added/moved to globalDefinitions.hpp - we seemed to have 
> multiple names for the same two constants.
>
> Testing: GC test suite on solaris and Linux, NSK tests on solaris, and 
> jprt.
>
> Thanks,
>
> JohnC