opendc.git - The OpenDC repository.

Age	Commit message (Collapse)	Author
2021-10-25	perf(telemetry): Prevent allocations during collection cycle	Fabian Mastenbroek
	This change redesigns the ComputeMonitor interface to reduce the number of memory allocations necessary during a collection cycle.
2021-10-25	feat(telemetry): Report provisioning time of virtual machines	Fabian Mastenbroek
	This change adds support for collecting the provisioning time of virtual machines in addition to their boot time.
2021-10-25	perf(telemetry): Do not allocate lambda in fast-path	Fabian Mastenbroek
	This commit changes the lookup for host and server aggregators to use `getOrPut` instead of `computeIfAbsent`. The former will inline the lambda and not cause any memory allocation in the fast-path (e.g., the key exists), while the latter always allocates lambda for constructing the aggregator.
2021-10-25	fix(telemetry): Fix clock resolution	Fabian Mastenbroek
	This change updates the Clock adapter for OpenTelemetry to return the current time in nanoseconds as specified by the method contract (as opposed to milliseconds).
2021-09-28	fix(telemetry): Report cause of compute exporter failure	Fabian Mastenbroek

2021-09-28	refactor(telemetry): Do not require clock for ComputeMetricExporter	Fabian Mastenbroek
	This change drops the requirement for a clock parameter when constructing a ComputeMetricExporter, since it will now derive the timestamp from the recorded metrics.
2021-09-28	fix(telemetry): Ensure shutdown of exporter is called	Fabian Mastenbroek
	This change updates the CoroutineMetricReader to ensure that the exporter is shutdown when the metric reader fails or is shutdown.
2021-09-17	refactor(telemetry): Standardize SimHost metrics	Fabian Mastenbroek
	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.
2021-09-17	refactor(telemetry): Standardize compute scheduler metrics	Fabian Mastenbroek
	This change updates the OpenDC compute service implementation with multiple meters that follow the OpenTelemetry conventions.
2021-09-17	refactor(telemetry): Create separate MeterProvider per service/host	Fabian Mastenbroek
	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.
2021-09-17	refactor(telemetry): Simplify CoroutineMetricReader	Fabian Mastenbroek
	This change simplifies the CoroutineMetricReader implementation by removing the seperation of reader and exporter jobs.
2021-09-17	build(telemetry): Update to OpenTelemetry 1.6.0	Fabian Mastenbroek
	This change updates the opentelemetry-java library to version 1.6.0.
2021-09-07	refactor(capelin): Move metric collection outside Capelin code	Fabian Mastenbroek
	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.
2021-05-07	build: Use Gradle version catalog	Fabian Mastenbroek
	This change adds support for the Gradle version catalog feature in our build configuration. This allows us to have a single file, gradle/libs.versions.toml, which contains all the dependency versions used in this project.
2021-05-06	build: Use type-safe project accessors	Fabian Mastenbroek
	This change updates the build scripts to use type-safe project accessors when specifying build dependencies between modules.
2021-04-25	build: Migrate to flat project structure	Fabian Mastenbroek
	This change updates the project structure to become flattened. Previously, the simulator, frontend and API each lived into their own directory. With this change, all modules of the project live in the top-level directory of the repository. This should improve discoverability of modules of the project.