config: add new index.threads config setting

diff --git a/t/README b/t/README
index 3ea6c854606056e1a7d9431dd59518d817768527..8f5c0620eae414eaf55da6ab299f3fc00fc8dd14 100644 (file)
--- a/t/README
+++ b/t/README
@@ -327,6 +327,11 @@ GIT_TEST_COMMIT_GRAPH=<boolean>, when true, forces the commit-graph to
 be written after every 'git commit' command, and overrides the
 'core.commitGraph' setting to true.
 
+GIT_TEST_INDEX_THREADS=<n> enables exercising the multi-threaded loading
+of the index for the whole test suite by bypassing the default number of
+cache entries and thread minimums. Setting this to 1 will make the
+index loading single threaded.
+
 Naming Tests
 ------------