ruby: network: revert some of the changes from ad9c042dce54

The changeset ad9c042dce54 made changes to the structures under the network
directory to use a map of buffers instead of vector of buffers.
The reasoning was that not all vnets that are created are used and we
needlessly allocate more buffers than required and then iterate over them
while processing network messages.  But the move to map resulted in a slow
down which was pointed out by Andreas Hansson.  This patch moves things
back to using vector of message buffers.

1 files changed, 6 insertions, 5 deletions

diff --git a/src/mem/ruby/network/simple/Throttle.hh b/src/mem/ruby/network/simple/Throttle.hh
index d978f14fd..797511702 100644
--- a/src/mem/ruby/network/simple/Throttle.hh
+++ b/src/mem/ruby/network/simple/Throttle.hh
@@ -62,8 +62,8 @@ class Throttle : public Consumer
     std::string name()
     { return csprintf("Throttle-%i", m_sID); }
 
-    void addLinks(const std::map<int, MessageBuffer*>& in_vec,
-                  const std::map<int, MessageBuffer*>& out_vec);
+    void addLinks(const std::vector<MessageBuffer*>& in_vec,
+                  const std::vector<MessageBuffer*>& out_vec);
     void wakeup();
 
     // The average utilization (a fraction) since last clearStats()
@@ -92,9 +92,10 @@ class Throttle : public Consumer
     Throttle(const Throttle& obj);
     Throttle& operator=(const Throttle& obj);
 
-    std::map<int, MessageBuffer*> m_in;
-    std::map<int, MessageBuffer*> m_out;
-    std::map<int, int> m_units_remaining;
+    std::vector<MessageBuffer*> m_in;
+    std::vector<MessageBuffer*> m_out;
+    unsigned int m_vnets;
+    std::vector<int> m_units_remaining;
 
     int m_sID;
     NodeID m_node;