depends how deep the pipeline is - with a long pipeline, a pipeline flush as a r...

mhh__ · on May 4, 2021

That's still dwarfed by a cache miss if you're unlucky.

I just found a bug (slow code is a bug) in the D backend where bad data layout led to 32 MILLION LLC misses (85% of the whole program) coming from one line!

Think about how much of a cacheline you are using per iteration folks.

naikrovek · on May 17, 2021

missing the cache will cost hundreds of cycles.