> I don't know about the CRIS (never heard of it, what is it?), but on
> an Athlon when benchmarking stuff, I could still see L1 cache hits
> from data that was 15 seconds old under certain work-loads (obviously
> not gcc!). Does anyone know how old something may exisit in cache
> before being written back to RAM?
I know of no architecture that has a time limit that after which's expire
caches get written back to memory. In other words cache lines may stay
dirty for an indefinate time if things are just right.
Ralf
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/