Comment 33 for bug 1178707

Hard to imagine how dynamically pinning irqhandlers to certain cpu's would make a difference. But who knows. If the description of instance types is correct the main differences between the two instance types would be that m2 has more memory (7.5GB / 17.1 GB) but has only one 420GB virtual drive, while m1 has two of them. So m2 could run out of cache for network IO less likely/often.

And apart from additional software, is there anything special in the setup that differs from a stock m1.large or m2.xlarge guest?