Microsoft.VisualStudio.Telemetry.Metrics Namespace

Reference

Important

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Classes

HistogramBuckets<T>	The set of buckets within the histogram.
HistogramConfiguration	Specifies the configuration of a histogram - which statistics to collect and which buckets to use.
HistogramStatistics<T>	Tracks the statistics for a histogram for a given scope (all-up or bucketized).
Instrument<T>	The base class for all non-observable instruments. Mirrored from: https://learn.microsoft.com/en-us/dotnet/api/system.diagnostics.metrics.instrument-1?view=net-6.0.
Meter	Meter is the class responsible for creating and tracking the Instruments. Mirrored from: https://learn.microsoft.com/en-us/dotnet/api/system.diagnostics.metrics.meter?view=net-6.0.
VSTelemetryMeterProvider	The MeterProvider is responsible for creating new meters with valid names + versions for the VS telemetry context.

Interfaces

ICounter<T>	A Counter, as defined by the OpenTelemetry standard. OpenTelemetry Spec: https://opentelemetry.io/docs/reference/specification/metrics/api/ .NET API spec: https://learn.microsoft.com/en-us/dotnet/api/system.diagnostics.metrics.counter-1?view=net-6.0 This interface permits coding to the OpenTelemetry standard without upgrading our .NET Framework. Since it's the same standard, we can update implementations to a thin wrapper around OTel when ready. This also permits us to avoid re-instrumentation for developers.
IHistogram<T>	A Histogram, as defined by the OpenTelemetry standard. OpenTelemetry Spec: https://opentelemetry.io/docs/reference/specification/metrics/api/ .NET API spec: https://learn.microsoft.com/en-us/dotnet/api/system.diagnostics.metrics.histogram-1?view=net-6.0 This interface permits coding to the OpenTelemetry standard without upgrading our .NET Framework. Since it's the same standard, we can update implementations to a thin wrapper around OTel when ready. This also permits us to avoid re-instrumentation for developers.
IInstrument	The base interface for all non-observable instruments. Mirrored from: https://learn.microsoft.com/en-us/dotnet/api/system.diagnostics.metrics.instrument-1?view=net-6.0.
IMeter	Meter is the class responsible for creating and tracking the Instruments. Mirrored from: https://learn.microsoft.com/en-us/dotnet/api/system.diagnostics.metrics.meter?view=net-6.0.
IMeterProvider	The MeterPRovider is responsible for creating new meters with valid names + versions for the context.
IVSCounter<T>	A Counter with support for exposing Sum + Count, which are not supported directly by OpenTelemetry counters. Taking a dependency on this histogram allows developers to use more convenient types. The cost of taking a dependency on the VS type is that it it can require additional dev work to move to OpenTelemetry.
IVSHistogram<T>	A Histogram with exposed Statistics + Buckets