[gem5-dev] changeset in gem5: mem: Use unordered set in bus request tracking

[Andreas Hansson]

changeset d98f85e25441 in /z/repo/gem5
details: http://repo.gem5.org/gem5?cmd=changeset;node=d98f85e25441
description:
        mem: Use unordered set in bus request tracking

        This patch changes the set used to track outstanding requests to an
        unordered set (part of C++11 STL). There is no need to maintain the
        order, and hopefully there might even be a small performance benefit.

diffstat:

 src/mem/bus.hh          |  1 -
 src/mem/coherent_bus.hh |  3 ++-
 2 files changed, 2 insertions(+), 2 deletions(-)

diffs (31 lines):

diff -r 03b21a385c47 -r d98f85e25441 src/mem/bus.hh
--- a/src/mem/bus.hh    Thu May 30 12:53:57 2013 -0400
+++ b/src/mem/bus.hh    Thu May 30 12:53:57 2013 -0400
@@ -52,7 +52,6 @@
 #define __MEM_BUS_HH__
 
 #include <deque>
-#include <set>
 
 #include "base/addr_range_map.hh"
 #include "base/types.hh"
diff -r 03b21a385c47 -r d98f85e25441 src/mem/coherent_bus.hh
--- a/src/mem/coherent_bus.hh   Thu May 30 12:53:57 2013 -0400
+++ b/src/mem/coherent_bus.hh   Thu May 30 12:53:57 2013 -0400
@@ -51,6 +51,7 @@
 #ifndef __MEM_COHERENT_BUS_HH__
 #define __MEM_COHERENT_BUS_HH__
 
+#include "base/hashmap.hh"
 #include "mem/bus.hh"
 #include "params/CoherentBus.hh"
 
@@ -222,7 +223,7 @@
      * we generated and which ones were merely forwarded. This is used
      * in the coherent bus when coherency responses come back.
      */
-    std::set<RequestPtr> outstandingReq;
+    m5::hash_set<RequestPtr> outstandingReq;
 
     /**
      * Keep a pointer to the system to be allow to querying memory system
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