<Swing Dev> Swing performance issue on JDK 9

Semyon Sadetsky semyon.sadetsky at oracle.com
Mon Oct 23 17:30:28 UTC 2017


JBS bug: https://bugs.openjdk.java.net/browse/JDK-8189809

--Semyon


On 10/23/2017 08:08 AM, Semyon Sadetsky wrote:
> Hi Alan,
>
> Do you have a test to reproduce the issue or can you describe the 
> steps to reveal it?
>
> --Semyon
>
>
> On 10/21/2017 10:17 AM, Alan Snyder wrote:
>> I have a Swing program that works fine on JDK 8 but runs like a dog 
>> [unusably slowly] on JDK 9. My investigation finds the problem in 
>> text layout (e.g. FlowView.layout), which is a whopping 20–25 times 
>> slower on JDK 9.
>>
>> Any idea what might have changed to cause this slowdown?
>>
>> Could it be the result of the new String implementation?
>>
>>    Alan
>>
>




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