diff --git a/src/pytest_codspeed/instruments/__init__.py b/src/pytest_codspeed/instruments/__init__.py
index 163bcc4..edd2849 100644
--- a/src/pytest_codspeed/instruments/__init__.py
+++ b/src/pytest_codspeed/instruments/__init__.py
@@ -16,7 +16,7 @@
 
 
 class Instrument(metaclass=ABCMeta):
-    instrument: ClassVar[MeasurementMode]
+    instrument: ClassVar[str]
 
     @abstractmethod
     def __init__(self, config: CodSpeedConfig): ...
@@ -44,17 +44,17 @@ def get_result_dict(
 
 
 class MeasurementMode(str, Enum):
-    CPUInstrumentation = "cpu_instrumentation"
+    Instrumentation = "instrumentation"
     WallTime = "walltime"
 
 
 def get_instrument_from_mode(mode: MeasurementMode) -> type[Instrument]:
-    from pytest_codspeed.instruments.cpu_instrumentation import (
-        CPUInstrumentationInstrument,
+    from pytest_codspeed.instruments.valgrind import (
+        ValgrindInstrument,
     )
     from pytest_codspeed.instruments.walltime import WallTimeInstrument
 
-    if mode == MeasurementMode.CPUInstrumentation:
-        return CPUInstrumentationInstrument
+    if mode == MeasurementMode.Instrumentation:
+        return ValgrindInstrument
     else:
         return WallTimeInstrument
diff --git a/src/pytest_codspeed/instruments/cpu_instrumentation/__init__.py b/src/pytest_codspeed/instruments/valgrind/__init__.py
similarity index 87%
rename from src/pytest_codspeed/instruments/cpu_instrumentation/__init__.py
rename to src/pytest_codspeed/instruments/valgrind/__init__.py
index 3f8f49d..b8d1974 100644
--- a/src/pytest_codspeed/instruments/cpu_instrumentation/__init__.py
+++ b/src/pytest_codspeed/instruments/valgrind/__init__.py
@@ -5,8 +5,8 @@
 from typing import TYPE_CHECKING
 
 from pytest_codspeed import __version__
-from pytest_codspeed.instruments import Instrument, MeasurementMode
-from pytest_codspeed.instruments.cpu_instrumentation._wrapper import get_lib
+from pytest_codspeed.instruments import Instrument
+from pytest_codspeed.instruments.valgrind._wrapper import get_lib
 
 if TYPE_CHECKING:
     from typing import Any, Callable
@@ -14,14 +14,14 @@
     from pytest import Session
 
     from pytest_codspeed.instruments import P, T
-    from pytest_codspeed.instruments.cpu_instrumentation._wrapper import LibType
+    from pytest_codspeed.instruments.valgrind._wrapper import LibType
     from pytest_codspeed.plugin import CodSpeedConfig
 
 SUPPORTS_PERF_TRAMPOLINE = sys.version_info >= (3, 12)
 
 
-class CPUInstrumentationInstrument(Instrument):
-    instrument = MeasurementMode.CPUInstrumentation
+class ValgrindInstrument(Instrument):
+    instrument = "valgrind"
     lib: LibType | None
 
     def __init__(self, config: CodSpeedConfig) -> None:
@@ -90,6 +90,6 @@ def report(self, session: Session) -> None:
 
     def get_result_dict(self) -> dict[str, Any]:
         return {
-            "instrument": {"type": self.instrument.value},
+            "instrument": {"type": self.instrument},
             # bench results will be dumped by valgrind
         }
diff --git a/src/pytest_codspeed/instruments/cpu_instrumentation/_wrapper/.gitignore b/src/pytest_codspeed/instruments/valgrind/_wrapper/.gitignore
similarity index 100%
rename from src/pytest_codspeed/instruments/cpu_instrumentation/_wrapper/.gitignore
rename to src/pytest_codspeed/instruments/valgrind/_wrapper/.gitignore
diff --git a/src/pytest_codspeed/instruments/cpu_instrumentation/_wrapper/__init__.py b/src/pytest_codspeed/instruments/valgrind/_wrapper/__init__.py
similarity index 100%
rename from src/pytest_codspeed/instruments/cpu_instrumentation/_wrapper/__init__.py
rename to src/pytest_codspeed/instruments/valgrind/_wrapper/__init__.py
diff --git a/src/pytest_codspeed/instruments/cpu_instrumentation/_wrapper/wrapper.c b/src/pytest_codspeed/instruments/valgrind/_wrapper/wrapper.c
similarity index 100%
rename from src/pytest_codspeed/instruments/cpu_instrumentation/_wrapper/wrapper.c
rename to src/pytest_codspeed/instruments/valgrind/_wrapper/wrapper.c
diff --git a/src/pytest_codspeed/instruments/cpu_instrumentation/_wrapper/wrapper.h b/src/pytest_codspeed/instruments/valgrind/_wrapper/wrapper.h
similarity index 100%
rename from src/pytest_codspeed/instruments/cpu_instrumentation/_wrapper/wrapper.h
rename to src/pytest_codspeed/instruments/valgrind/_wrapper/wrapper.h
diff --git a/src/pytest_codspeed/instruments/cpu_instrumentation/_wrapper/wrapper.pyi b/src/pytest_codspeed/instruments/valgrind/_wrapper/wrapper.pyi
similarity index 100%
rename from src/pytest_codspeed/instruments/cpu_instrumentation/_wrapper/wrapper.pyi
rename to src/pytest_codspeed/instruments/valgrind/_wrapper/wrapper.pyi
diff --git a/src/pytest_codspeed/instruments/walltime.py b/src/pytest_codspeed/instruments/walltime.py
index eaa799c..d81cc74 100644
--- a/src/pytest_codspeed/instruments/walltime.py
+++ b/src/pytest_codspeed/instruments/walltime.py
@@ -9,7 +9,7 @@
 from rich.console import Console
 from rich.table import Table
 
-from pytest_codspeed.instruments import Instrument, MeasurementMode
+from pytest_codspeed.instruments import Instrument
 
 if TYPE_CHECKING:
     from typing import Any, Callable
@@ -153,7 +153,7 @@ def run_benchmark(
 
 
 class WallTimeInstrument(Instrument):
-    instrument = MeasurementMode.WallTime
+    instrument = "walltime"
 
     def __init__(self, config: CodSpeedConfig) -> None:
         self.config = config
@@ -224,7 +224,7 @@ def _print_benchmark_table(self) -> None:
     def get_result_dict(self) -> dict[str, Any]:
         return {
             "instrument": {
-                "type": self.instrument.value,
+                "type": self.instrument,
                 "clock_info": get_clock_info("perf_counter").__dict__,
             },
             "benchmarks": [asdict(bench) for bench in self.benchmarks],
diff --git a/src/pytest_codspeed/plugin.py b/src/pytest_codspeed/plugin.py
index 42dae38..c3bd886 100644
--- a/src/pytest_codspeed/plugin.py
+++ b/src/pytest_codspeed/plugin.py
@@ -123,7 +123,7 @@ def pytest_configure(config: pytest.Config):
         if os.environ.get("CODSPEED_RUNNER_MODE") == "walltime":
             default_mode = MeasurementMode.WallTime.value
         else:
-            default_mode = MeasurementMode.CPUInstrumentation.value
+            default_mode = MeasurementMode.Instrumentation.value
     else:
         default_mode = MeasurementMode.WallTime.value
 
@@ -144,7 +144,7 @@ def pytest_configure(config: pytest.Config):
 
     profile_folder = os.environ.get("CODSPEED_PROFILE_FOLDER")
     if profile_folder:
-        result_path = Path(profile_folder) / "walltime" / f"{os.getpid()}.json"
+        result_path = Path(profile_folder) / "results" / f"{os.getpid()}.json"
     else:
         result_path = config.rootpath / f".codspeed/results_{time() * 1000:.0f}.json"
 
diff --git a/tests/test_pytest_plugin_cpu_instrumentation.py b/tests/test_pytest_plugin_cpu_instrumentation.py
index bb3b133..e911c52 100644
--- a/tests/test_pytest_plugin_cpu_instrumentation.py
+++ b/tests/test_pytest_plugin_cpu_instrumentation.py
@@ -36,7 +36,7 @@ def _():
                 return 1 + 1
         """
     )
-    result = run_pytest_codspeed_with_mode(pytester, MeasurementMode.CPUInstrumentation)
+    result = run_pytest_codspeed_with_mode(pytester, MeasurementMode.Instrumentation)
     result.stdout.fnmatch_lines(
         [
             (
@@ -76,8 +76,7 @@ def fixtured_child():
     with open(perf_filepath) as perf_file:
         lines = perf_file.readlines()
         assert any(
-            "py::CPUInstrumentationInstrument.measure.<locals>.__codspeed_root_frame__"
-            in line
+            "py::ValgrindInstrument.measure.<locals>.__codspeed_root_frame__" in line
             for line in lines
         ), "No root frame found in perf map"
         assert any(