diff --git a/tests/army/cmdline/fullopt.py b/tests/army/cmdline/fullopt.py
index 7f97a6892a..f61a6437ca 100644
--- a/tests/army/cmdline/fullopt.py
+++ b/tests/army/cmdline/fullopt.py
@@ -30,7 +30,7 @@ class TDTestCase(TBase):
     updatecfgDict = {
         'queryMaxConcurrentTables': '2K',
         'streamMax': '1M',
-        'totalMemoryKB': '1G',
+        'totalMemoryKB': '32G',
         'streamMax': '1P',
         'streamBufferSize':'1T',
         'slowLogScope':"query"