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kayvonf

Question: Can you describe the difference between the MSI and MESI protocols?

Question: Messi or Ronaldo, who is better?

mschervi

The difference between MSI and MESI is the extra state "exclusive" in the MESI protocol. The intuition behind making this change is that if a cache is the only one to contain a certain line, X, in the Shared state then it should not have to tell all other processors that it is about to write to X. To remove the need to issue this BusRdX, MESI adds another state, "exclusive." If a cache contains a line in the E state, then it is the only cache to contain that line. This means that if the processor wants to write to that line, no bus operations need to occur.

Amanda

So, at peak performance, Ronaldo will achieve a maximum of 15 goals in a single FIFA tournament, while Messi's maximum is only 11. However, after looking over total goals scored over years 2009-2011, it can be noted that Messi sees a more efficient increase in performance than Ronaldo, as well as the better performance at 2011. It may also be worth noting that Messi bottlenecks at 2010, while Ronaldo observes a consistent performance increase.

We can also consider the performance of the two players with maximum available resources: So far in the 2012-2013 year, Messi has averaged 1.53 goals/game, while Ronaldo averages only .83. We can also consider the rate of ball transfer (sending direction only). Messi achieves on average 58.1 BL/m (balls per match) with 85.9% utilisation, while Ronaldo sees only 33.1 BL/m and 77.6% util.

Finally, let's consider the overall monetary cost of either player: Messi requires 12.7 million Euro in the 2012/2013 year, while Ronaldo requires 12 million Euro.

While I admit this data inevitably presents a narrow portrait of the two players and performance can be measured in a variety of other ways, given the stats above, I see Messi as a more reliable choice in the average case; I also believe Messi to be the more cost-effective option, as a difference of .7 million euro (5.8%) is not enough to justify the dip in performance.

(sources: google, mostly. And yes, I do think I'm cute)

kayvonf

@Amanda. I'm not sure what you mean by "bottlenecked", as Messi's Barcelona goal total has monotonically increased his entire career, with the exception of a one-goal step back from the 06/07 to 07/08 seasons. It's pretty clear this season that with David Villa out and Tito away for cancer treatment, Barcelona goes only as far as Messi takes them, so I'd consider Barcelona "Messi bound".

I could see a plausible argument that Ronaldo's performance is presently bottlenecked on the subpar play of his Real teammates or the recent lackluster coaching of Mourinho (as he flirts with a move to other clubs), but I don't see how it applies to Messi.

source: http://en.wikipedia.org/wiki/Lionel_Messi

mburman

Speaking of Ronaldo and Messi, Real Madrid plays Barca this Tuesday at 15:00 (EST). Also, did you see Ronaldo's header against United two weeks ago? No way Messi can jump that high.

And, yes, Mourinho needs to stop being a grumpy old man.

nslobody

I cannot believe I missed a discussion about Messi vs. Cristiano. I could have gotten, like, 10 comments out of the way just on this.

For the record: Messi. Cristiano will be remembered as one of the best players of his generation, Messi will be remembered as a top 3-5 player of all time. It's not even a question.

By the way @kayvonf, Villa is back this year.