Traceable performance evaluation
This page presents good practices when performing benchmarks using Grid'5000 nodes. It is not about benchmarking Grid'5000 itself.
About the nodes' operating system
Grid'5000 nodes can be used with a choice of different system environments: either with the default (standard) environment which is pre-provisioned on nodes, or with a variety of environments deployed on demand by the user. We compare the several options.
Benchmarking on node running the default (standard) environment
In this case, access to the system of the node does not require a deployment (kadeploy), so access is quicker. The system however comes with a lot of functionalities that may impact benchmarks. It may be relevant to uninstall/deactivate them before running the benchmark.
The list of services running on the system can be shown using systemctl
Services can be uninstalled (e.g. with apt-get remove package) or just deactivated (with systemctl stop service) after becoming root (with sudo-g5k).
The following services is known to possibly impact benchmarks:
- ...
- ...
Also, the Grid'5000 default environment includes some common system tweaks that may have biases on benchmarks. The CPU parameters page may provide relevant information.
Benchmarking on a deployed environment
Using kadeploy is very relevant for benchmarking, as it allows the user to operate the nodes with a most minimalistic system that is sufficient for the benchmark. For instance, one can deploy the -min variant of one of the Grid'5000 supported environments, or a customized environment possibly built on top of a minimalistic environment but including software required for running the benchmark.
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The recipes from which Grid'5000 environment are built are available in https://gitlab.inria.fr/grid5000/environments-recipes. See Environment creation for more information about how environments are built.
About Grid'5000 metering probes
Grid'5000 provides the kwollect service that can collect information about nodes during a job: energy, network traffic, and more. See the kwollect page or the Energy consumption monitoring tutorial.