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BenchXtend - based on Yahoo! Cloud System Benchmark (YCSB) ==================================== BenchXtend is a tool that extends YCSB to include the following features: - Variation of clients during workload execution according to a pre-defined timeline - Calculation of elasticity metrics of database systems in cloud, both in under and overprovisioning scenarios For information about the regular YCSB take a look at https://github.com/brianfrankcooper/YCSB Getting Started --------------- 1. Download the latest release of BenchXtend. 2. Set up a database to benchmark. There is a README file under each binding directory. 3. Run YCSB command, but with BenchXtend features: bin/ycsb load basic -P workloads/workloada bin/ycsb run basic -P workloads/workloada -timeline timeline.xml -sla sla.xml timeline.xml file: formatted to list the number of expected clients in each of the workload execution. This way, it is possible to vary the number of clients in a way that fits better to a specific application environment. sla.xml: defines the expected time for each operation (read, update, ...). It establishes, theoretically, the agreement between a service provider and a service consumer. See https://github.com/brianfrankcooper/YCSB/wiki/Running-a-Workload for a detailed documentation on how to run a workload. See https://github.com/brianfrankcooper/YCSB/wiki/Core-Properties for the list of available workload properties.