Hi, At LiveRamp we are considering replacing Scribe with Kafka, and as a first step we run some tests to evaluate producer performance. You can find our preliminary results here: https://blog.liveramp.com/2013/04/08/kafka-0-8-producer-performance-2/. We hope this will be useful for some folks, and If anyone has comments or suggestions about what to do differently to obtain better results your feedback will be very welcome.
Thanks, Piotr