1 files changed, 31 insertions, 0 deletions
diff --git a/lab/benchmark.py b/lab/benchmark.py
index 8bde9bf4..8e340562 100644
--- a/lab/benchmark.py
+++ b/lab/benchmark.py
@@ -297,6 +297,14 @@ class Coverage:
     # Tweaks to the .coveragerc file
     options: Optional[str] = None
 
+class CoveragePR(Coverage):
+    """A version of coverage.py from a pull request."""
+    def __init__(self, number, options=None):
+        super().__init__(
+            slug=f"#{number}",
+            pip_args=f"git+https://github.com/nedbat/coveragepy.git@refs/pull/{number}/merge",
+            options=options,
+        )
 
 @dataclasses.dataclass
 class Env:
@@ -423,6 +431,29 @@ with change_dir(PERF_DIR):
     if 1:
         exp = Experiment(
             py_versions=[
+                Python(3, 11),
+            ],
+            cov_versions=[
+                Coverage("6.4.1", "coverage==6.4.1"),
+                CoveragePR(1394),
+            ],
+            projects=[
+                AdHocProject("/src/bugs/bug1339/bug1339.py"),
+                SlipcoverBenchmark("bm_sudoku.py"),
+                SlipcoverBenchmark("bm_spectral_norm.py"),
+            ],
+        )
+        exp.run(num_runs=5)
+        exp.show_results(
+            rows=["pyver", "proj"],
+            column="cov",
+            ratios=[
+                ("#1394 vs 6.4.1", "#1394", "6.4.1"),
+            ],
+        )
+    if 0:
+        exp = Experiment(
+            py_versions=[
                 Python(3, 10),
                 Python(3, 11),
                 #AdHocPython("/usr/local/cpython", "gh93493"),