hstest: bulk write benchmark (64 blocks = 32KB at a time)
hstest: bulk write benchmark (64 blocks = 32KB at a time)

1000 iterations of this benchmark: 0.8sec, 1.1GB mem allocations

our throughput is about 40MB/sec, without actually sync'ing to disk

mit-pdos/fscq-impl,mit-pdos/fscq-impl,mit-pdos/fscq-impl,mit-pdos/fscq-impl,mit-pdos/fscq-impl