SMPable version of EM driver

Vladimir Ivanov wawa at yandex-team.ru
Tue Oct 16 01:26:50 PDT 2007


Karl Triebes wrote:
> Vladamir,
>    interesting work. Do you have performance numbers with each of your
> changes to see how much each contributed? How does this method scale
> with cpu cores. With your multiple RX thread idea, do you think there
> will a lot of cache thrashing due to fact that now > 1 core is looking
> at RX from the same device?
>   
DMA activity is a main problem for cache. They have about zero cache hit 
rate even w/one CPU core I seem.
> Thanks,
>
> Karl.
>
>   
[skip]

WBR,

-- 
Vladimir Ivanov
Network Operations Center
OOO "Yandex"
t: +7 495 739-7000
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@: noc at yandex.net (corporate)
  wawa at yandex-team.ru (personal)
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