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This change redesigns the ComputeMonitor interface to reduce the number
of memory allocations necessary during a collection cycle.
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This change redesigns the virtual machine interference algorithm to have
a fixed memory usage per `VmInterferenceModel` instance. Previously, for
every interference domain, a copy of the model would be created, leading
to OutOfMemory errors when running multiple experiments at the same
time.
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This change renames the `opendc-simulator-resources` module into the
`opendc-simulator-flow` module to indicate that the core simulation
model of OpenDC is based around modelling and simulating flows.
Previously, the distinction between resource consumer and provider, and
input and output caused some confusion. By switching to a flow-based
model, this distinction is now clear (as in, the water flows from source
to consumer/sink).
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This change drops the requirement for a clock parameter when
constructing a ComputeMetricExporter, since it will now derive the
timestamp from the recorded metrics.
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Bumps [semver-regex](https://github.com/sindresorhus/semver-regex) from 3.1.2 to 3.1.3.
- [Release notes](https://github.com/sindresorhus/semver-regex/releases)
- [Commits](https://github.com/sindresorhus/semver-regex/commits)
---
updated-dependencies:
- dependency-name: semver-regex
dependency-type: indirect
...
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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
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This change adds a new API for writing traces in a trace format.
Currently, writing is only supported by the OpenDC VM format, but over
time the other formats will also have support for writing added.
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This change updates the workload sampling implementation to be more
flexible in the way the workload is constructed. Users can now sample
multiple workloads at the same time using multiple samplers and use them
as a single workload to simulate.
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This change adds support for creating flexible topologies by creating a
TopologyFactory interface that is responsible for configuring the hosts
of a compute service.
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This change creates a new module for doing simulations with virtual
machine workloads. We have found that a lot of code in the Capelin
experiments code is being re-used by non-experiment modules.
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This change standardizes the metrics emitted by SimHost instances and
their guests based on the OpenTelemetry semantic conventions. We now
also report CPU time as opposed to CPU work as this metric is more
commonly used.
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This change updates the OpenDC compute service implementation with
multiple meters that follow the OpenTelemetry conventions.
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This change refactors the telemetry implementation by creating a
separate MeterProvider per service or host. This means we have to keep
track of multiple metric producers, but that we can attach resource
information to each of the MeterProviders like we would in a real world
scenario.
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This change moves the fault injection logic directly into the
opendc-compute-simulator module, so that it can operate at a higher
abstraction. In the future, we might again split the module if we can
re-use some of its logic.
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This change updates the dependencies of the OpenDC frontend module.
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This change addresses an incompatibility issue with the kotlin-reflect
transitive dependency in the opendc-web-runner module.
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This change moves the metric collection outside the Capelin codebase in
a separate module so other modules can also benefit from the compute
metric collection code.
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Bumps [immer](https://github.com/immerjs/immer) from 9.0.5 to 9.0.6.
- [Release notes](https://github.com/immerjs/immer/releases)
- [Commits](https://github.com/immerjs/immer/compare/v9.0.5...v9.0.6)
---
updated-dependencies:
- dependency-name: immer
dependency-type: direct:production
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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
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This change updates the WTF trace reader to support the new streaming
trace API.
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This change removes the environment reader from the format library since
they are highly specific for the particular experiment. In the future,
we hope to have a single format to setup the entire datacenter (perhaps
similar to the format used by the web runner).
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Bumps [next](https://github.com/vercel/next.js) from 11.1.0 to 11.1.1.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](https://github.com/vercel/next.js/compare/v11.1.0...v11.1.1)
---
updated-dependencies:
- dependency-name: next
dependency-type: direct:production
...
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
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This change eliminates the unnecessary conversions from double to long
in the Capelin metric processing code.
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This change upgrades the OpenTelemetry dependency to version 1.5, which
contains various breaking changes in the metrics API.
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This change updates the FilterScheduler implementation to follow more
closely the scheduler implementation in OpenStack's Nova. We now
normalize the weights, support many of the filters and weights in
OpenStack and support overcommitting resources.
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This change adds context selectors for the OpenDC frontend where the
user can select different projects, portfolios or topologies from the
context selection bar.
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Bumps [next](https://github.com/vercel/next.js) from 11.0.1 to 11.1.0.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](https://github.com/vercel/next.js/compare/v11.0.1...v11.1.0)
---
updated-dependencies:
- dependency-name: next
dependency-type: direct:production
...
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
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This change updates the OpenDC frontend to perform the construction of
the topology directly in the reducers instead of performing the
mutations in Redux Sagas as side effects. This allows us to nicely map
actions to mutations in the reducers.
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This change fixes an issue where the only the default topology view
would be shown to the user.
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This change updates the OpenDC frontend to perform mutations of the
topology done in Sagas through the React Query cache, so that non-Saga
parts of the application also have their topology queries updated.
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This change extends the ESLint configuration with the ESLint recommended
settings.
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This change updates the source structure of the OpenDC frontend to
follow the page structure.
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This change updates the OpenDC frontend to reduce its reliance of global
state during the execution of actions. Actions that modify the topology
now require parameters to be passed via the action constructor instead
of relying on the global interactionLevel state.
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This change updates the Next.js/Webpack configuration of the OpenDC
frontend to split transpiled modules into a separate chunk during
development. This prevents the duplication of the transpiled modules
across the compiled files.
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This change updates the topology view in the OpenDC frontend to isolate
the world coordinate space. This means that zooming and panning should
not affect the coordinates in world space (but only in camera space). In
turn, this allows us to remove the dependency on Redux for the camera
controls.
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This change enables support for panning the visualized datacenter
topology by using the mouse or holding shortcuts. Previously, this could
only be done through repeated key presses.
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This change is a rewrite of the existing OpenDC frontend in order to
migrate to the PatternFly 4 design framework.
PatternFly is used by Red Hat for various computing related services such
as OpenShift, Red Hat Virtualization and Cockpit. Since their design
requirements are very similar to those of OpenDC (modeling computing
services), migrating to PatternFly 4 allows us to re-use design choices
from these services.
See https://www.patternfly.org/v4/ for more information about
PatternFly.
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This change fixes an issue where the topology generated by the frontend
was not accepted by the API server.
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This change adds support in our Next.js application for the PatternFly 4
design framework. This framework is built by RedHat and provides several
components that are useful for the space in which OpenDC operates.
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This change extracts the landing page from the web interface in order to
separate the development of the two. This allows the landing page to be
developed independently of the actual OpenDC web application.
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This change updates the OpenDC frontend to combine the fetching of
project relations. This means that for a single project, we make only
one additional request to retrieve all its topologies.
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This change updates the OpenDC frontend to use the normalizr library for
normalizing the user topology.
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This change updates the OpenDC API to re-expose the simulation results
as they are necessary for the frontend to display the results.
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This change adds additional endpoints to the REST API to access the
project relations, the portfolios and topologies that belong to a
project.
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This change updates the OpenDC frontend to fetch schedulers and traces
using React Query, removing its dependency on Redux.
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