Hi, we've tested the write performance on a single and dual node cluster and the results are strangely poor. We've got about 30 inserts per second which seems a little bit slow?! The strange about is, that the node's we've used (single-cpu, 3gb ram, single disk) got a load of 0.02-0.05 while the inserts run. There is no disk/network bottlenecks, no swapping. The insert-script reads some values from stdin and inserts this values into cassandra. So it seems thats the used thrift interface are the bootleneck (we've tested php, perl, java, results a nearly the same). We've used version 0.5.1 and the default config with adjusted ColumnFamilies.
Are there some hints or suggestions? Cheers, Martin
