On 12/12/2014 11:20 AM, Sage Weil wrote:
We can't use floating point. The code needs to run in the kernel. We also need the rseults to be perfectly deterministic and consistent across all architectures; I'm not sure if all floating point implementations (and log implementations) will do that?
Nope ... that is a whole different subject. Ok, why not start looking at what some of the GFX folks do?
https://graphics.stanford.edu/~seander/bithacks.html#IntegerLog -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
