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Refactor jvm classes semantic conventions (#2550)
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@jack-berg
jack-berg authored May 19, 2022
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27 changes: 14 additions & 13 deletions specification/metrics/semantic_conventions/runtime-environment-metrics.md
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Expand Up @@ -57,19 +57,20 @@ consider, for example pthreads vs green thread implementations.

All JVM metric attributes are required unless otherwise indicated.

| Name | Description | Unit | Unit ([UCUM](README.md#instrument-units)) | Instrument Type ([*](README.md#instrument-types)) | Value Type | Attribute Key | Attribute Values |
|--------------------------------------|-------------------------------------|-------|-------------------------------------------|---------------------------------------------------|------------|---------------|-----------------------|
| process.runtime.jvm.memory.usage | Measure of memory used | Bytes | `By` | UpDownCounter | Int64 | type | `"heap"`, `"nonheap"` |
| | | | | | | pool | Name of pool [1] |
| process.runtime.jvm.memory.init | Measure of initial memory requested | Bytes | `By` | UpDownCounter | Int64 | type | `"heap"`, `"nonheap"` |
| | | | | | | pool | Name of pool [1] |
| process.runtime.jvm.memory.committed | Measure of memory committed | Bytes | `By` | UpDownCounter | Int64 | type | `"heap"`, `"nonheap"` |
| | | | | | | pool | Name of pool [1] |
| process.runtime.jvm.memory.max | Measure of max obtainable memory | Bytes | `By` | UpDownCounter | Int64 | type | `"heap"`, `"nonheap"` |
| | | | | | | pool | Name of pool [1] |
| process.runtime.jvm.threads.count | Number of executing threads | threads | `{threads}` | UpDownCounter | Int64 | | |
| process.runtime.jvm.classes.loaded | Number of classes currently loaded | classes | `{classes}` | UpDownCounter | Int64 | | |
| process.runtime.jvm.classes.unloaded | Number of classes unloaded since JVM start | classes | `{classes}` | UpDownCounter | Int64 | | |
| Name | Description | Unit | Unit ([UCUM](README.md#instrument-units)) | Instrument Type ([*](README.md#instrument-types)) | Value Type | Attribute Key | Attribute Values |
|--------------------------------------------|--------------------------------------------|-------|-------------------------------------------|---------------------------------------------------|------------|---------------|-----------------------|
| process.runtime.jvm.memory.usage | Measure of memory used | Bytes | `By` | UpDownCounter | Int64 | type | `"heap"`, `"nonheap"` |
| | | | | | | pool | Name of pool [1] |
| process.runtime.jvm.memory.init | Measure of initial memory requested | Bytes | `By` | UpDownCounter | Int64 | type | `"heap"`, `"nonheap"` |
| | | | | | | pool | Name of pool [1] |
| process.runtime.jvm.memory.committed | Measure of memory committed | Bytes | `By` | UpDownCounter | Int64 | type | `"heap"`, `"nonheap"` |
| | | | | | | pool | Name of pool [1] |
| process.runtime.jvm.memory.max | Measure of max obtainable memory | Bytes | `By` | UpDownCounter | Int64 | type | `"heap"`, `"nonheap"` |
| | | | | | | pool | Name of pool [1] |
| process.runtime.jvm.threads.count | Number of executing threads | threads | `{threads}` | UpDownCounter | Int64 | | |
| process.runtime.jvm.classes.loaded | Number of classes loaded since JVM start | classes | `{classes}` | Counter | Int64 | | |
| process.runtime.jvm.classes.unloaded | Number of classes unloaded since JVM start | classes | `{classes}` | Counter | Int64 | | |
| process.runtime.jvm.classes.current_loaded | Number of classes currently loaded | classes | `{classes}` | UpDownCounter | Int64 | | |

**[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())
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