opendc.git - The OpenDC repository.

Age	Commit message (Collapse)	Author
2021-04-07	simulator: Move away from StateFlow for low-level monitoring	Fabian Mastenbroek
	This change removes the StateFlow speed property on the SimResourceSource, as the overhead of emitting changes to the StateFlow is too high in a single-thread context. Our new approach is to use direct callbacks and counters.
2021-04-07	simulator: Add tests for CPUFreq subsystem	Fabian Mastenbroek

2021-04-07	simulator: Polish power models	Hongyu
	This change updates the power models by fixing some of the documentation and adding toString() methods.
2021-04-07	simulator: Add initial design of CPUFreq model	Fabian Mastenbroek
	This change adds a model implementing Dynamic Voltage Frequency Scaling (DVFS) to OpenDC.
2021-03-26	simulator: Extract hardware power values to a separate file (#105)	Hongyu
	This change enables the use of the interpolation model testing on the results of the SPEC benchmark.
2021-03-24	simulator: Move power models to simulator module	Fabian Mastenbroek
	This change moves the power models from the `opendc-compute-simulator` to the `opendc-simulator-compute` module, since it better fits the scope of the models and allows them to be re-used for other purposes.
2021-03-23	simulator: Add support for emitting VM usage metrics	Fabian Mastenbroek
	This change re-enables support for VM usage metrics by adding an adapter for SimResourceConsumer instances that can export the consumer speed.
2021-03-22	simulator: Remove generic resource constraint from resource model	Fabian Mastenbroek
	This change removes the generic resource constraint (e.g., SimResource) and replaces it by a simple capacity property. In the future, users should handle the resource properties on a higher level. This change simplifies compositions of consumers and providers by not requiring a translation from resource to capacity.
2021-03-17	simulator: Make hypervisors generic for the resource type	Fabian Mastenbroek
	This change moves the hypervisor implementations to the opendc-simulator-resources module and makes them generic to the resource type that is being used (e.g., CPU, disk or networking).
2021-03-16	simulator: Add generic framework for resource consumption modeling	Fabian Mastenbroek
	This change adds a generic framework for modeling resource consumptions and adapts opendc-simulator-compute to model machines and VMs on top of this framework. This framework anticipates the addition of additional resource types such as memory, disk and network to the OpenDC codebase.
2021-01-11	Add support for hypervisor selection	Fabian Mastenbroek
	This change allows users to select the hypervisor scheduler to use when deploying hypervisors onto bare-metal machines.
2021-01-11	Add hypervisor supporting space-shared VMs	Fabian Mastenbroek
	This change adds a new hypervisor implementation that supports virtual machine that have exclusive access to resources (e.g., CPU).
2021-01-11	Convert to pull-based workload model	Fabian Mastenbroek
	This change converts the low-level workload model to be pull-based. This reduces the overhead that we experienced with our previous co-routine based approach.
2021-01-07	Refactor workflow service to schedule tasks onto VMs	Fabian Mastenbroek
	This change updates the workflow service to delegate the resource scheduling logic to the virtualized resource provisioner.
2020-10-04	Reimplement performance interference in opendc-simulator-compute	Fabian Mastenbroek
	This change reimplements the performance interference model originally implemented for the SimpleVirtDriver class, for SimHypervisor.
2020-10-03	Implement VirtDriver using opendc-simulator-compute module	Fabian Mastenbroek
	This change adds an implementation of the VirtDriver interface that uses the functionality provided by the opendc-simulator-compute module.
2020-10-02	Add opendc-simulator-compute module	Fabian Mastenbroek
	This change adds an opendc-simulator-compute module which contains interfaces related to simulating compute workloads. For future changes, we intend to decouple the simulation part from the opendc-compute module.