[webkit-dev] Re: [webkit-changes] [24907] trunk

[Andre-John Mas]

That should be the total amount of time will reach a value near zero,  
not the total number of iterations - oops.

On 7-Aug-07, at 23:29 , Andre-John Mas wrote:

> I am just wondering whether it should be the other way round, in  
> that how many iterations can be done in time x. The logic here is  
> that as processors gets faster a given number of iterations will  
> eventually reach a value near zero. On the other hand for a given  
> time period there is much more room for expansion on the number of  
> iterations possible.
>
> Andre
>
> On 7-Aug-07, at 19:04 , Mitz Pettel wrote:
>
>> If I understood the bug fix and the test correctly, then a test  
>> like this might work: do 5000 iterations (instead of 30000) and  
>> look at the ratio between the time the first 500 and last 500  
>> iterations take.
>>
>> On Aug 7, 2007, at 5:22 PM, Antti Koivisto wrote:
>>
>>> On 8/7/07, Mitz Pettel <opendarwin.org at mitzpettel.com> wrote:
>>>> On Aug 7, 2007, at 2:15 PM, antti at webkit.org wrote:
>>>> - added performance test. With debug build on MBP this takes  
>>>> about 1.5s to
>>>> run.
>>>>
>>>> * fast/block/basic/stress-shallow-nested-expected.txt: Added.
>>>> * fast/block/basic/stress-shallow-nested.html: Added.
>>>>
>>>> (emphases mine). Nothing about that makes sense to me.
>>>
>>> Are you objecting to testing performance regressions as part of the
>>> test suite in general or particular method here? I'm open to
>>> suggestions.
>>>
>>> It does not take long to run (300ms on release, 1.5s on debug  
>>> MBP) so
>>> I thought it would be appropriate for automatic test. There are
>>> similar cases in the suite already. It needs to have non-zero
>>> execution time so that O(n^2) nature of the bug shows up in testable
>>> way.
>>>
>>>
>>>   antti
>>>
>>>> _______________________________________________
>>>> webkit-dev mailing list
>>>> webkit-dev at lists.webkit.org
>>>> http://lists.webkit.org/mailman/listinfo/webkit-dev
>>>>
>>>>
>>
>> _______________________________________________
>> webkit-dev mailing list
>> webkit-dev at lists.webkit.org
>> http://lists.webkit.org/mailman/listinfo/webkit-dev
>
> _______________________________________________
> webkit-dev mailing list
> webkit-dev at lists.webkit.org
> http://lists.webkit.org/mailman/listinfo/webkit-dev