So it is "Block/s". Thanks. It seems rather misleading for it to be in hash/s though.

When a mining program is displaying a "hashrate" is this the number of individual SHA-256 digests or it is the hash checking of the completed block? I'm confused about this because I'm currently programming my own miner (just to get to know bitcoin mining better, not for actual profit) and I've found out that to assemble a block, the miner needs to preform numerous SHA-256 digests for calculating the merkle root, the individual transactions before finally hashing the completed block.