[Doc] Cleanup ENABLE_METRICS_PREVIEW (#1745)

open-telemetry · Nov 8, 2022 · b89f981 · b89f981 · github-actions · Nov 8, 2022
1 parent 34b6597
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diff --git a/README.md b/README.md
@@ -13,15 +13,10 @@ The C++ [OpenTelemetry](https://opentelemetry.io/) client.
 | Signal  | Status                  | Project                                                                  |
 | ------- | ----------------------- | ------------------------------------------------------------------------ |
 | Traces  | Public Release          | N/A                                                                      |
-| Metrics | Public Release [1]      | N/A                                                                      |
-| Logs    | Experimental [2]        | [Release Milestone](https://github.com/open-telemetry/opentelemetry-cpp/milestone/18)|
-
-* [1]: The older metrics implementation (based on old
-      specification) is now deprecated, and would be removed soon.
-      This can be included in build by setting
-      `ENABLE_METRICS_PREVIEW` preprocessor macro, and is included under
-      `*/_metrics/*` directory.
-* [2]: The current Log Signal Implementation is Experimental, and will change as
+| Metrics | Public Release          | N/A                                                                      |
+| Logs    | Experimental [1]        | [Release Milestone](https://github.com/open-telemetry/opentelemetry-cpp/milestone/18)|
+
+* [1]: The current Log Signal Implementation is Experimental, and will change as
       the current OpenTelemetry Log specification matures. The current
       implementation can be included in build by setting `ENABLE_LOGS_PREVIEW`
       preprocessor macro.

diff --git a/exporters/ostream/CMakeLists.txt b/exporters/ostream/CMakeLists.txt
@@ -22,7 +22,6 @@ install(
   DIRECTORY include/opentelemetry/exporters/ostream
   DESTINATION include/opentelemetry/exporters
   PATTERN "*.h"
-  PATTERN "metrics_exporter.h" EXCLUDE
   PATTERN "log_Exporter.h" EXCLUDE)
 
 if(BUILD_TESTING)

diff --git a/exporters/ostream/src/metrics_exporter.cc b/exporters/ostream/src/metrics_exporter.cc
Benchmark suite	Current: `b89f981`	Previous: `34b6597`	Ratio
`BM_SpinLockThrashing/2/process_time/real_time`	`1.3824350693646599` ms/iter	`0.28157671657177286` ms/iter	`4.91`
`BM_ProcYieldSpinLockThrashing/2/process_time/real_time`	`1.0236986752214103` ms/iter	`0.2933816122688396` ms/iter	`3.49`
`BM_NaiveSpinLockThrashing/2/process_time/real_time`	`0.9580543546965627` ms/iter	`0.2963187255503692` ms/iter	`3.23`
Benchmark suite	Current: `b89f981`	Previous: `34b6597`	Ratio
`BM_BaselineBuffer/2`	`4437555.551528931` ns/iter	`1355591.7739868164` ns/iter	`3.27`
`BM_BaselineBuffer/4`	`11806380.74874878` ns/iter	`5128064.155578613` ns/iter	`2.30`