saturation_exps.md

To launch experiments with varying client request rates, we use

    `python exps.py` 

Main variables

The exps.py scripts contains the following global variables:

1. NNODES: a list containing the numbers of nodes

2. THREADS: a list containing number of threads per client

3. RATES: a list containing number of requests per second per thread.

4. EXPS: list of tuple (#threads,rate) which is preferred to THREADS and RATES lists when only a small set from THREADS.RATES list is being considered.

Other settings

By default, the experiments use YCSB workload. Variables like binary path, log path, etc. are found in 'env_ycsb.sh'.

Start the benchmark

To run it, specify the values for configuration variables, then run:

    `python exps.py`. 

For every number of nodes in NNODES, the script iterates through all combination of (#threads, rate) and invoke:

    `run_bench.sh <#nodes> <#threads> <#clients> <#req rate>`