对于分支预测，BHT（分支历史表）由分支虚拟地址索引。当两个或多个分支哈希到BHT（分支历史表）中的同一条目时，会出现混叠问题，这种冲突会导致预测精度下降。
BTB（分支目标缓冲区）是分支历史信息的一部分。那么，现代CPU中使用的BTB驱逐方案是什么（与缓存驱逐相比）？被占用的分支是否总是立即占用BTB条目，并在集合中没有空闲条目的情况下驱逐该条目？
对于分支预测，BHT（分支历史表）由分支虚拟地址索引。当两个或多个分支散列到BHT（分支历史表）中的同一条目时，会出现别名问题。。。
I m working on an assignment in my Computer Architecture class where we have to implement a branch prediction algorithm in C++ (for the Alpha 21264 microprocessor architecture). There is a solution ...
《英特尔建筑开发商手册》(Vol3A,第8-26节)指出:
I have a quick question, suppose I have the following code and it s repeated in a simliar way 10 times for example. if blah then number = number + 2^n end if Would it be faster to evaluate: ...
Is there any portable way of doing branch prediction hints? Consider the following example: if (unlikely_condition) { /* ..A.. */ } else { /* ..B.. */ } Is this any different than ...
Consider the following sequence of actual outcomes for a single static branch. T means the branch is taken. N means the branch is not taken. For this question, assume that this is the only branch in ...
