Moved system metrics semconv (#154)

specification/README.md

@@ -10,6 +10,7 @@ Semantic Conventions are defined for the following areas:
 * [Exceptions](exceptions/README.md): Semantic Conventions for Exceptions.
 * [HTTP](http/README.md): Semantic Conventions for HTTP client and server operations.
 * [Database](database/README.md): Semantic Conventions for database operations.
+* [System](system/README.md): System Semantic Conventions.
 * *Other areas can be found in the signal specific Semantic Conventions below*
 
 Semantic Conventions by signals:

specification/general/metrics-general.md

@@ -22,11 +22,12 @@ The following semantic conventions surrounding metrics are defined:
 * [HTTP](/specification/http/http-metrics.md): For HTTP client and server metrics.
 * [RPC](/specification/metrics/semantic_conventions/rpc-metrics.md): For RPC client and server metrics.
 * [Database](/specification/database/database-metrics.md): For SQL and NoSQL client metrics.
-* [System](/specification/metrics/semantic_conventions/system-metrics.md): For standard system metrics.
-* [Process](/specification/metrics/semantic_conventions/process-metrics.md): For standard process metrics.
-* [Runtime Environment](/specification/metrics/semantic_conventions/runtime-environment-metrics.md): For runtime environment metrics.
 * [FaaS](/specification/metrics/semantic_conventions/faas-metrics.md): For [Function as a Service](https://en.wikipedia.org/wiki/Function_as_a_service) metrics.
-* [Hardware](/specification/metrics/semantic_conventions/hardware-metrics.md): For hardware-related metrics.
+* **System metrics**
+  * [System](/specification/system/system-metrics.md): For standard system metrics.
+  * [Hardware](/specification/system/hardware-metrics.md): For hardware-related metrics.
+  * [Process](/specification/system/process-metrics.md): For standard process metrics.
+  * [Runtime Environment](/specification/system/runtime-environment-metrics.md): For runtime environment metrics.
 
 Apart from semantic conventions for metrics, [traces](trace-general.md), [logs](logs-general.md), and [events](events-general.md), OpenTelemetry also
 defines the concept of overarching [Resources](https://github.com/open-telemetry/opentelemetry-specification/tree/v1.21.0/specification/resource/sdk.md) with

specification/system/README.md

@@ -0,0 +1,14 @@
+# System semantic conventions
+
+**Status**: [Experimental][DocumentStatus]
+
+This document defines semantic conventions for systems (such as processes, runtimes, hardware, etc.).
+
+System semantic conventions are defined for the following metrics:
+
+* [System](system-metrics.md): For standard system metrics.
+* [Hardware](hardware-metrics.md): For hardware-related metrics.
+* [Process](process-metrics.md): For standard process metrics.
+* [Runtime Environment](runtime-environment-metrics.md): For runtime environment metrics.
+
+[DocumentStatus]: https://github.com/open-telemetry/opentelemetry-specification/blob/v1.21.0/specification/document-status.md

specification/system/hardware-metrics.md

@@ -35,7 +35,7 @@ when creating instruments not explicitly defined in the specification.
 
 ## Common hardware attributes
 
-All metrics in `hw.` instruments should be attached to a [Host Resource](../../resource/semantic_conventions/host.md)
+All metrics in `hw.` instruments should be attached to a [Host Resource](/specification/resource/semantic_conventions/host.md)
 and therefore inherit its attributes, like `host.id` and `host.name`.
 
 Additionally, all metrics in `hw.` instruments have the following attributes:

specification/system/process-metrics.md

@@ -46,6 +46,6 @@ Below is a table of Process metric instruments.
 
 ## Attributes
 
-Process metrics SHOULD be associated with a [`process`](../../resource/semantic_conventions/process.md#process) resource whose attributes provide additional context about the process.
+Process metrics SHOULD be associated with a [`process`](/specification/resource/semantic_conventions/process.md#process) resource whose attributes provide additional context about the process.
 
 [DocumentStatus]: https://github.com/open-telemetry/opentelemetry-specification/blob/v1.21.0/specification/document-status.md

specification/system/runtime-environment-metrics.md

@@ -71,7 +71,7 @@ consider, for example pthreads vs green thread implementations.
 
 ## Attributes
 
-[`process.runtime`](../../resource/semantic_conventions/process.md#process-runtimes) resource attributes SHOULD be included on runtime metric events as appropriate.
+[`process.runtime`](/specification/resource/semantic_conventions/process.md#process-runtimes) resource attributes SHOULD be included on runtime metric events as appropriate.
 
 ## JVM Metrics