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Diffstat (limited to 'test/files/instrumented/README')
| -rw-r--r-- | test/files/instrumented/README | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/test/files/instrumented/README b/test/files/instrumented/README new file mode 100644 index 0000000000..32d0ef2da5 --- /dev/null +++ b/test/files/instrumented/README @@ -0,0 +1,15 @@ +Tests in `instrumented` directory are executed the same way as in `run` but +they have additional byte-code instrumentation performed for profiling. You +should put your tests in `instrumented` directory if you are interested in +method call counts. Examples include tests for specialization (you want to +count boxing and unboxing method calls) or high-level tests for optimizer +where you are interested if methods are successfuly inlined (so they should +not be called at runtime) or closures are eliminated (so no constructors +of closures are called). + +Check `scala.tools.partest.instrumented.Instrumentation` to learn how to +use the instrumentation infrastructure. + +The instrumentation itself is achieved by attaching a Java agent to the forked +VM process that injects calls to profiler. Check +`scala.tools.partest.instrumented.Instrumentation`. |