Number of worker CPU cores allocated from EC2 versus throughput measured in experiments per hour: that is, the reciprocal of the wall clock time required to conduct a whole-human experiment on the Wang et al. dataset . The line labeled 'linear speedup' traces hypothetical linear speedup relative to the throughput for 80 CPU cores.
Langmead et al. Genome Biology 2009 10:R134 doi:10.1186/gb-2009-10-11-r134