3 ms·
Does anybody know what the pipeline depth is? At 4GHz, it can't be short, and the cost of mispredicted branches could significantly worsen real-world results.
by jwr 12y ago
Does anybody know what the pipeline depth is? At 4GHz, it can't be short, and the cost of mispredicted branches could significantly worsen real-world results.
- wmf 12y agoThe S3 core has a 16-stage pipeline and it sounds like S4 is roughly the same. All the threads can cover a lot of stalls.
- jwr 12y agoFairly large, then. Hyperthreading is only useful if you can make use of it and if you are batch processing — if you're running a single computation that needs to finish within a certain time, it won't help you.