RFR [XXS]: Tiny bug in VM monitoring/management
david.holmes at oracle.com
Fri Dec 21 22:04:03 UTC 2018
On 21/12/2018 11:52 pm, Haug, Gunter wrote:
> Hi David,
> Thanks for looking into this.
>> But I have to wonder if this will suddenly turn this on or
>> off for some platform where it was off or on?? Ideally we will find both
>> flags are normally set the same.
> I don't think it's a problem. _thread_allocated_memory_enabled is always on, the VM takes care for that value regardless of the OS. _thread_cpu_time_enabled is turned on depending of the capabilities of the OS. Most systems support it, one exception is non-Apple BSD. In this case is_thread_allocated_memory_enabled() currently returns false even though it is actually supported by the VM.
Sounds good. Thanks for checking.
> On 21.12.18, 12:02, "David Holmes" <david.holmes at oracle.com> wrote:
> Hi Gunter,
> On 21/12/2018 8:37 pm, Haug, Gunter wrote:
> > Hi all,
> > can I please have reviews and a sponsor fort the following change:
> > https://bugs.openjdk.java.net/browse/JDK-8215791
> > http://cr.openjdk.java.net/~ghaug/webrevs/8215791/
> > This was obviously just a copy and paste mishap.
> Obviously! But I have to wonder if this will suddenly turn this on or
> off for some platform where it was off or on?? Ideally we will find both
> flags are normally set the same.
> > Thanks and happy holidays,
> > Gunter
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