Performance tests: recover a baseline from ancestor commits and CI results.

gitlab-ci: push performance metrics as git notes to the "GHC Performance Notes" repository.

1 files changed, 9 insertions, 3 deletions

diff --git a/testsuite/driver/testglobals.py b/testsuite/driver/testglobals.py
index 0e0240db8e..423925e87e 100644
--- a/testsuite/driver/testglobals.py
+++ b/testsuite/driver/testglobals.py
@@ -235,11 +235,17 @@ class TestOptions:
        # extra files to copy to the testdir
        self.extra_files = []
 
-       # Map from metric to expectected value and allowed percentage deviation. e.g.
-       #     { 'bytes allocated': (9300000000, 10) }
-       # To allow a 10% deviation from 9300000000 for the 'bytes allocated' metric.
+       # Map from metric to (fuction from way to baseline value, allowed percentage deviation) e.g.
+       #     { 'bytes allocated': (
+       #              lambda way: if way1: return None ... elif way2:return 9300000000 ...,
+       #              10) }
+       # This means no baseline is available for way1. For way 2, allow a 10%
+       # deviation from 9300000000.
        self.stats_range_fields = {}
 
+       # Is the test testing performance?
+       self.is_stats_test = False
+
        # Does this test the compiler's performance as opposed to the generated code.
        self.is_compiler_stats_test = False