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README
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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.