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To: wanna_bmw who wrote (150422)11/29/2001 6:09:14 PM
From: kapkan4u  Read Replies (2) of 186894
 
<I strongly suggest you learn about switch statements yourself before embarrassing yourself further.>

You said this:

"You're a moron. Regardless of the random number, the actual inner-most piece of code is one long switch statement. Only ONE of the statements in a switch statement can be true, so all the 99,999 others will be false, or like I said: Strongly Not-Taken."

Message 16722799

Of course you are the one who is a moron because a large dense switch statement would always be generated as a computed branch into a table. So the inner loop has a computed branch with randomly generated target. This target can not be predicted by a branch predictor. Additionally, after the branch predictor fails, there will be a trace cache miss because the chance of a hit on this code is worse than 1 in 10. Just compare the number of statements with TC's capacity.

Kap
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