I/O manager

First, we need to create a configuration file for the iomanager. On your target machine (i.e. the host) run:

src/create_configuration_file.py <num_of_cores> <network_interface_name[,second_if_name]> [OPTIONS]

• num_of_cores: is the number of cores on your system; use less if you want to confine the virtual machines and iocores to use a subset of the available cores
• network_interface_name: is the interface name (from the host perspective) in which all traffic of the virtual machines goes through. Currently, supporting up to 2 NICs

Options:

• --config: override the default configuration file path
• --min: minimum number of iocores allowed
• --max: maximum number of iocores allowed

Note: the configuration file is stored in /tmp/ by default

Next, run the iomanager:

/src/start_io_manager.py [OPTIONS]

Options:

• -c, --config: override the default configuration file path
• -p, --process: run as a process (as opposed to a daemon) and direct all output to stdout/stderr

Note: it is possible to manually tune the configuration settings (you should better know what you're doing); for more information please see: confs/configuration_template.json

To stop the iomanager daemon run the following command:

/src/stop_io_manager.py

Acknowledgements

This project has been conducted within the RIA MIKELANGELO project (no. 645402), started in January 2015, and co-funded by the European Commission under the H2020-ICT- 07-2014: Advanced Cloud Infrastructures and Services programme.