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Add semantic conventions for jvm cpu metrics #2292

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Expand Up @@ -57,18 +57,19 @@ consider, for example pthreads vs green thread implementations.

All JVM metric attributes are required unless otherwise indicated.
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| Name | Description | Unit | Unit ([UCUM](README.md#instrument-units)) | Instrument Type | Value Type | Attribute Key | Attribute Values |
|--------------------------------------|-------------------------------------|-------|-------------------------------------------|----------------------------|------------|---------------|-----------------------|
| process.runtime.jvm.memory.usage | Measure of memory used | Bytes | `By` | Asynchronous UpDownCounter | Int64 | type | `"heap"`, `"nonheap"` |
| | | | | | | pool | Name of pool [1] |
| process.runtime.jvm.memory.init | Measure of initial memory requested | Bytes | `By` | Asynchronous UpDownCounter | Int64 | type | `"heap"`, `"nonheap"` |
| | | | | | | pool | Name of pool [1] |
| process.runtime.jvm.memory.committed | Measure of memory committed | Bytes | `By` | Asynchronous UpDownCounter | Int64 | type | `"heap"`, `"nonheap"` |
| | | | | | | pool | Name of pool [1] |
| process.runtime.jvm.memory.max | Measure of max obtainable memory | Bytes | `By` | Asynchronous UpDownCounter | Int64 | type | `"heap"`, `"nonheap"` |
| | | | | | | pool | Name of pool [1] |

**[1]**: Pool names are generally obtained
via [MemoryPoolMXBean#getName()](https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/MemoryPoolMXBean.html#getName())
. Examples include `G1 Old Gen`, `G1 Eden space`, `G1 Survivor Space`
, `Metaspace`, etc.
| Name | Description | Unit | Unit ([UCUM](README.md#instrument-units)) | Instrument Type | Value Type | Attribute Key | Attribute Values |
|------------------------------------------------|----------------------------------------------------------|---------|-------------------------------------------|----------------------------|------------|---------------|-----------------------|
| process.runtime.jvm.memory.usage | Measure of memory used | Bytes | `By` | Asynchronous UpDownCounter | Int64 | type | `"heap"`, `"nonheap"` |
| | | | | | | pool | Name of pool [1] |
| process.runtime.jvm.memory.init | Measure of initial memory requested | Bytes | `By` | Asynchronous UpDownCounter | Int64 | type | `"heap"`, `"nonheap"` |
| | | | | | | pool | Name of pool [1] |
| process.runtime.jvm.memory.committed | Measure of memory committed | Bytes | `By` | Asynchronous UpDownCounter | Int64 | type | `"heap"`, `"nonheap"` |
| | | | | | | pool | Name of pool [1] |
| process.runtime.jvm.memory.max | Measure of max obtainable memory | Bytes | `By` | Asynchronous UpDownCounter | Int64 | type | `"heap"`, `"nonheap"` |
| | | | | | | pool | Name of pool [1] |
| process.runtime.jvm.cpu.utilization | The "recent cpu usage" for the process | 1 | 1 | Asynchronous Gauge | Double | | |
| process.runtime.jvm.system.cpu.utilization | The "recent cpu usage" for the whole system | 1 | 1 | Asynchronous Gauge | Double | | |
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| process.runtime.jvm.system.cpu.load_1m | Average CPU load of the whole system for the last minute | 1 | 1 | Asynchronous Gauge | Double | | |

**[1]**: Pool names are generally obtained via [MemoryPoolMXBean#getName()](https://docs.oracle.com/en/java/javase/11/docs/api/java.management/java/lang/management/MemoryPoolMXBean.html#getName()).
Examples include `G1 Old Gen`, `G1 Eden space`, `G1 Survivor Space`, `Metaspace`, etc.