News for hackers. Stuff that matters.

A comment on Are spot instances killing the performance of Amazon EC2?.

Re:Are spot instances killing the performance of Amazon EC2? by wmf on Friday January 15, 2010 @02:23PM (#1055631)
Even if EC2's RAM is all allocated that wouldn't necessarily lead to network congestion, since network usage is workload-dependent. Conversely it would be possible for EC2 to experience network congestion even when its RAM is not full.
[ Parent | on HN ]
Re:Are spot instances killing the performance of Amazon EC2? by lallysingh on Friday January 15, 2010 @02:37PM (#1055679)
I don't know the virtualization system they're using. Could some of the (partially virtual) network stack be software based, and thusly respond to memory pressure?
[ Parent | on HN ]
Re:Are spot instances killing the performance of Amazon EC2? by timdorr on Friday January 15, 2010 @04:28PM (#1055925)
They use Xen. No idea on the network architecture, though.
[ Parent | on HN ]