diff --git a/src/mem/ruby/system/CacheRecorder.cc b/src/mem/ruby/system/CacheRecorder.cc
index e87b3f20b2..20a8a30ebc 100644
--- a/src/mem/ruby/system/CacheRecorder.cc
+++ b/src/mem/ruby/system/CacheRecorder.cc
@@ -207,5 +207,11 @@ CacheRecorder::aggregateRecords(uint8_t **buf, uint64_t total_size)
     return current_size;
 }
 
+uint64_t
+CacheRecorder::getNumRecords() const
+{
+    return m_records.size();
+}
+
 } // namespace ruby
 } // namespace gem5
diff --git a/src/mem/ruby/system/CacheRecorder.hh b/src/mem/ruby/system/CacheRecorder.hh
index 8dbd67f3ff..be95590313 100644
--- a/src/mem/ruby/system/CacheRecorder.hh
+++ b/src/mem/ruby/system/CacheRecorder.hh
@@ -85,6 +85,8 @@ class CacheRecorder
 
     uint64_t aggregateRecords(uint8_t **data, uint64_t size);
 
+    uint64_t getNumRecords() const;
+
     /*!
      * Function for flushing the memory contents of the caches to the
      * main memory. It goes through the recorded contents of the caches,
diff --git a/src/mem/ruby/system/RubySystem.cc b/src/mem/ruby/system/RubySystem.cc
index 5a81513720..b38c903b09 100644
--- a/src/mem/ruby/system/RubySystem.cc
+++ b/src/mem/ruby/system/RubySystem.cc
@@ -218,6 +218,13 @@ RubySystem::memWriteback()
     }
     DPRINTF(RubyCacheTrace, "Cache Trace Complete\n");
 
+    // If there is no dirty block, we don't need to flush the cache
+    if (m_cache_recorder->getNumRecords() == 0)
+    {
+        m_cooldown_enabled = false;
+        return;
+    }
+
     // save the current tick value
     Tick curtick_original = curTick();
     DPRINTF(RubyCacheTrace, "Recording current tick %ld\n", curtick_original);