Can JMeter Assert on Throughput?
Yes its possible. You can use the Jenkins Text Finder plugin and the JMeter "aggregate report". With aggregate report you can write a CSV or XML file. You can search this file for your throughput with the Jenkins Text Finder Plugin and then you can mark the build as failed or unstable. Alternativly, you can use a BASH script to search the generated JMeter report file and return a non null return value. This will make your build fail.