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Benchmarking Cassandra Scalability on AWS - Over a million writes per second

techblog.netflix.com

Writes stress a data store all the way to the disks, while read benchmarks may only exercise the in-memory cache. We use these for read intensive workloads to cache more data in memory. 0 Key cache size / save period in seconds: 200000.0/14400 Both these instance types have a one Gbit/s network.

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