A Closer Look At The Christmas Eve Outage

Re:A Closer Look At The Christmas Eve Outage by jkat on Monday December 31, 2012 @09:03PM (#4991620)

I know I was vague, but we really are CPU-bound. We do some fairly heavy set and bitwise operations. Our smallest unit of work is about 3x-5x slower on AWS (while costing about 4x more than alternatives). This can't be further parallelized without a rewrite. The problem is compounded by the negative impact this has on concurrency - which can be solved by adding more machines, but that just makes AWS that much more expensive.

A different, less important system, does image manipulation. This is also very CPU-sensitive.

[ Parent | on HN ]

Re:A Closer Look At The Christmas Eve Outage by raverbashing on Tuesday January 01, 2013 @04:15AM (#4992253)

Interesting

Maybe I need to rephrase what I said: AWS instances are very bad at CPU, but the flexibility to add more instances and different instance types can compensate for that

Yes, maybe you can try Linode or Rackspace to compare their CPU performance

[ Parent | on HN ]