On Wed, May 5, 2010 at 6:36 PM, Mark Jones <mjo...@imagehawk.com> wrote:
> Have you actually managed to get 10K reads/second, or are you just > estimating that you can? I’ve run into similar issues, but I never got > reads to scale when searching for unique keys even using 40 threads, I did > discover that using 80+ threads, I can actually reduce performance. I’ve > never gotten more than 200-300 reads/second (steady state) off a 4 cluster > node. I can get roughly 8K writes/second to the same cluster (although I > haven’t tested both simultaneously with results worth talking about). > 200-300/s is pretty low, especially if you can get 8k writes/s. I would estimate that you should be getting at least a couple thousand reads/s. Here is what I've gotten from a quad core machine with two disks: http://racklabs.com/~bwilliam/cassandra/04vs05vs06.png How much data are you testing with? -Brandon
