Clearing up a major misconception about PowerPC

[curl-6]

walsufnir said:

curl-6 said:
Putting aside core count and clock speed for a moment, what kind of performance boost would likely result from a PPC750 CPU going from 256kb of L2 cache, (Broadway) to 3MB, (Espresso) a 12-fold increase?

A general answer is more L2$ means less io-wait in certain cases but if your data is too big so it doesn't fit it won't matter much. Increasing cache size can of course result in a cpu performing better but this is not generally the case. Especially if you consider it's shared among 3 cores.

Even between 3, it's still 8 times as much as Broadway for the main core, and twice as much for the two secondaries.

So what kind of workloads consist of small data that benefits most from L2 increases?