diff --git a/racket/src/ChezScheme/IMPLEMENTATION.md b/racket/src/ChezScheme/IMPLEMENTATION.md
index 1ea21b916a..efa30f2b80 100644
--- a/racket/src/ChezScheme/IMPLEMENTATION.md
+++ b/racket/src/ChezScheme/IMPLEMENTATION.md
@@ -291,8 +291,10 @@ files, and then links are recreated on demand in the workarea space to
 "root-experr-..." or "patch-..." files when they are needed to
 generate expexted-error diffs.
 
-Despite its name, `make allx` does not run all available tests. Use
-`make bullyx` to run a different, more stressfull set of tests. The
+You can run a smaller set of tests using `make partialx` or using
+`make test-some` directly in your build directory. Despite its name,
+`make allx` does not run all available tests. Use `make bullyx` or
+`make test-more` to run a different, more stressfull set of tests. The
 bully tests may cover more configurations than `allx`, so `make
 patches` after `make bullyx` may pick up additional "patch-..." file
 changes.
diff --git a/racket/src/ChezScheme/makefiles/Makefile-workarea.in b/racket/src/ChezScheme/makefiles/Makefile-workarea.in
index 34204df995..43327e31d7 100644
--- a/racket/src/ChezScheme/makefiles/Makefile-workarea.in
+++ b/racket/src/ChezScheme/makefiles/Makefile-workarea.in
@@ -32,7 +32,14 @@ uninstall:
 .PHONY: test
 test: build
 	(cd mats && $(MAKE) allx)
-	@echo "test run complete.  check $(PREFIX)mats/summary for errors."
+
+.PHONY: test-some
+test-some: build
+	(cd mats && $(MAKE) partialx)
+
+.PHONY: test-more
+test-more: build
+	(cd mats && $(MAKE) bullyx)
 
 .PHONY: coverage
 coverage: