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pinzo
Journeyman III

performace worsening with ati catalyst 11.4 driver or newer

I found a kernel performance worsening in AMD APP SDK v2.4 after installation of ati catalyst 11.4

hi,

in AMD APP SDK v2.4 release notes there is written that ara improved the PCIe transfer speed and kernel launch times.

So I installed the v2.4 and i see that the launch time is improved from 2502 microsecond to 415 microsecond but at the same time I see that the kernel execution time is worsen from 597 microsecond to 2753 microsecond. How can you see the addition of the two time (launch and execution time) is similar even if there is little worsening. The same thing happen for memory write and read time.

this thing happen only with ati catalyst 11.4 driver or the following, with driver 11.3 the launch time anc execution time is equal to  SDK v2.3.

why?

thank you

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5 Replies
qiuyeanwen
Journeyman III

Perhaps the memory and the

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what, sorry?

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What sorry you don't know said

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i don't know what qiuyeanwen whuld say, because he write only "Perhaps the memory and the".

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Both of those posters are spammers/spam bots. I've reported all their posts to the moderator of this forum.

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