Re: [Paracomp-devel] Crash in pcSystemFinalize

[Stefan E. <eil...@gm...>]

On 14. May 2008, at 12:26, Shree Kumar wrote:

> Hi Stephen,
>
> On Tue, 2008-05-13 at 12:44 +0000, Stefan Eilemann wrote:
>
>> Regarding the performance: I've retested on my Mac. It seems the
>> performance problem is still there:
>>
>> Eq, rev 1880:
>> ./Darwin/test: DB first op:  41.4328 ms (1272.77 MB/s)
>> ./Darwin/test: DB second op: 28.1947 ms (1870.36 MB/s)
>> ./Darwin/test: DB 15 images: 92.7198 ms (2843.75 MB/s)
>>
>>
>> PC, rev 63:
>> ./Darwin/test: DB first op:  39.5884 ms (1332.07 MB/s)
>> ./Darwin/test: DB second op: 26.9765 ms (1954.83 MB/s)
>> ./Darwin/test: DB 15 images: 87.6801 ms (3007.2 MB/s)
>>
>> PC, rev 62:
>>
>> ./Darwin/test: DB first op:  45.064 ms (1170.21 MB/s)
>> ./Darwin/test: DB second op: 32.2106 ms (1637.17 MB/s)
>> ./Darwin/test: DB 15 images: 111.401 ms (2366.88 MB/s)
>>
>
> PC rev 63 seems to be faster than Eq rev 1880. Am I
> missing something ?

No - I think it is due to the fact that Eq supports different sizes  
between the images, which makes the code a bit more complex.

>
>
> Of course, I'm still puzzled about the perf difference between Eq and
> rev 63 :-)

I assume you meant rev 62?!


Cheers,

Stefan.
-- 
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