diff --git a/libcxx/test/std/input.output/string.streams/stringstream/stringstream.members/gcount.pass.cpp b/libcxx/test/std/input.output/string.streams/stringstream/stringstream.members/gcount.pass.cpp
index 3a5edac6c58b4..8dc74421e7895 100644
--- a/libcxx/test/std/input.output/string.streams/stringstream/stringstream.members/gcount.pass.cpp
+++ b/libcxx/test/std/input.output/string.streams/stringstream/stringstream.members/gcount.pass.cpp
@@ -7,6 +7,7 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: 32-bit-pointer
+// REQUIRES: large_tests
 
 // Test that tellp() does not break the stringstream after INT_MAX, due to use
 // of pbump() that accept int.
diff --git a/libcxx/utils/libcxx/test/params.py b/libcxx/utils/libcxx/test/params.py
index d4e4b722347d6..5911af85c1c81 100644
--- a/libcxx/utils/libcxx/test/params.py
+++ b/libcxx/utils/libcxx/test/params.py
@@ -278,6 +278,14 @@ def getStdFlag(cfg, std):
         help="Whether to enable tests that take longer to run. This can be useful when running on a very slow device.",
         actions=lambda enabled: [] if not enabled else [AddFeature("long_tests")],
     ),
+    Parameter(
+        name="large_tests",
+        choices=[True, False],
+        type=bool,
+        default=True,
+        help="Whether to enable tests that use a lot of memory. This can be useful when running on a device with limited amounts of memory.",
+        actions=lambda enabled: [] if not enabled else [AddFeature("large_tests")],
+    ),
     Parameter(
         name="hardening_mode",
         choices=["unchecked", "hardened", "safe", "debug"],