RFR(xs): 8150843: [windows] os::getTimesSecs() returns negative values for kernel, user times

[Thomas Stüfe]

Hi all,

I still need a second reviewer and a sponsor for this small Windows-only
fix.

bug report: https://bugs.openjdk.java.net/browse/JDK-8150843
Current webrev is:
http://cr.openjdk.java.net/~stuefe/webrevs/8150843-windows-osGetTimesSecs/webrev.01/webrev/

Thank you!

..Thomas

On Mon, Feb 29, 2016 at 6:14 PM, Thomas Stüfe <thomas.stuefe at gmail.com>
wrote:

> Hi all,
>
> please review and sponsor this small fix.
>
> It fixes an error in os::getTimesSecs() for windows which causes the
> numbers for kernel- and usertime to be off. This does not cause an error,
> because the sole user of this function, the TraceCpuTime class, uses this
> function to measure twice and calculate the deltas.
>
> I still think it is a good idea to fix this bug - with the fix, the
> returned values are based on the process start and will be the same for all
> platforms (the *nix platforms use times()).
>
> bug report: https://bugs.openjdk.java.net/browse/JDK-8150843
> webrev:
> http://cr.openjdk.java.net/~stuefe/webrevs/8150843-windows-osGetTimesSecs/webrev.00/webrev/
>
> Kind Regards, Thomas
>