Preference higherPerformance in 3.9 and noise

stéphane ducasse ducasse at iam.unibe.ch
Fri Jul 14 15:07:14 UTC 2006


I do not know.
I should be off in 7043

BTW: If this preference is so bad why do we keep it.

> I wonder too... this caused us some headache because a few images  
> running on a slow test server already used up all cpu.
>
> The high cpu usage first appeared in 6706, exactly when traits were  
> introduced. So, my first guess was that there was something wrong  
> with traits...
> But apparently this is caused by this preference which has been  
> manually enable in the distribution image: in a 6705 image the  
> preference is set to false, and after updating this image to 6706  
> it is still disabled. So, was the change intended?
>
> Adrian
>
>
> On Jul 14, 2006, at 00:27 , John M McIntosh wrote:
>
>> I'm wondering why this is on in 3.9, it consumes *lots* of CPU cycles
>>
>>>> Did some research on this and found nothing until I stumbled across
>>>> the higherPerformance preference and studied how it was used in the
>>>> update loop in the code. (It is on by default in 3.9)
>>>>
>>>> Turns out that if the preference is turned off the noise  
>>>> disappears.
>>>> Now working in 3.9 is  a very pleasant experience. Downloaded the
>>>> latest version of 3.9 today and our project works just fine.
>>
>> --
>> ===================================================================== 
>> ======
>> John M. McIntosh <johnmci at smalltalkconsulting.com>
>> Corporate Smalltalk Consulting Ltd.  http:// 
>> www.smalltalkconsulting.com
>> ===================================================================== 
>> ======
>>
>>
>>
>
>




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