[OpenJDK 2D-Dev] <AWT Dev> RFR: 8251854: [macosx] Java forces the use of discrete GPU

Philip Race philip.race at oracle.com
Thu Dec 24 01:56:13 UTC 2020

 From the CSR ;

 >This change also improves the startup performance, on my current new
 > laptop mbp 16 + BigSur 11.1 the switching discrete/integrated causes 
unexpected delays up to 10 seconds.

This also has to be a bug. I thought it had gone away. Have we reported 
that to Apple ?
If not we should do so ASAP.


On 12/23/20 5:04 PM, Sergey Bylokhov wrote:
> On Wed, 9 Dec 2020 17:40:34 GMT, Victor Dyakov <vdyakov at openjdk.org> wrote:
>>>>> @kevinrushforth @prrace could you please review?
>>>> As we discussed yesterday, it is reviewed but not ready to be approved.
>>>> We are waiting for a reply from Apple.
>>> @prrace
>>> We are waiting for it for three months already. If it is possible then not sure why other applications did not found any possible ways to force one specific GPU. What we are wating for?
>> @mrserb @prrace  what is a back up plan in case we will not have a reply from Apple? (as we do not have it for 4! months). Definitely we need a plan B
> CSR is filed: https://bugs.openjdk.java.net/browse/JDK-8258918
> -------------
> PR: https://git.openjdk.java.net/jdk/pull/1139

More information about the 2d-dev mailing list