By: EduardoS (no.delete@this.spam.com), September 16, 2007 4:52 pm
Room: Moderated Discussions
David Kanter (dkanter@realworldtech.com) on 9/16/07 wrote:
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>Now I don't know how often this happens, but this sequence only requires a single
>write back at the end. Under the MESIF system, you'd actually have to write it
>back for every iteration. So you actually could save quite a few writes with an O state.
Do you know if the O state can "move" from one CPU to another?
To keep the data close to home node or to not write back while someone else still with a copy.
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>Now I don't know how often this happens, but this sequence only requires a single
>write back at the end. Under the MESIF system, you'd actually have to write it
>back for every iteration. So you actually could save quite a few writes with an O state.
Do you know if the O state can "move" from one CPU to another?
To keep the data close to home node or to not write back while someone else still with a copy.