MOESI_hammer: break down miss latency stalled cycles

This patch tracks the number of cycles a transaction is delayed at different
points of the request-forward-response loop.

2 files changed, 64 insertions, 4 deletions

diff --git a/src/mem/ruby/system/Sequencer.cc b/src/mem/ruby/system/Sequencer.cc
index 175bb6721..74b6355e8 100644
--- a/src/mem/ruby/system/Sequencer.cc
+++ b/src/mem/ruby/system/Sequencer.cc
@@ -357,6 +357,17 @@ Sequencer::writeCallback(const Address& address,
                          GenericMachineType mach, 
                          DataBlock& data)
 {
+    writeCallback(address, mach, data, 0, 0, 0);
+}
+
+void
+Sequencer::writeCallback(const Address& address,
+                         GenericMachineType mach, 
+                         DataBlock& data,
+                         Time initialRequestTime,
+                         Time forwardRequestTime,
+                         Time firstResponseTime)
+{
     assert(address == line_address(address));
     assert(m_writeRequestTable.count(line_address(address)));
 
@@ -385,7 +396,8 @@ Sequencer::writeCallback(const Address& address,
         m_controller->unblock(address);
     }
 
-    hitCallback(request, mach, data, success);
+    hitCallback(request, mach, data, success, 
+                initialRequestTime, forwardRequestTime, firstResponseTime);
 }
 
 void
@@ -399,6 +411,17 @@ Sequencer::readCallback(const Address& address,
                         GenericMachineType mach,
                         DataBlock& data)
 {
+    readCallback(address, mach, data, 0, 0, 0);
+}
+
+void
+Sequencer::readCallback(const Address& address,
+                        GenericMachineType mach,
+                        DataBlock& data,
+                        Time initialRequestTime,
+                        Time forwardRequestTime,
+                        Time firstResponseTime)
+{
     assert(address == line_address(address));
     assert(m_readRequestTable.count(line_address(address)));
 
@@ -413,14 +436,18 @@ Sequencer::readCallback(const Address& address,
            (request->ruby_request.type == RubyRequestType_RMW_Read) ||
            (request->ruby_request.type == RubyRequestType_IFETCH));
 
-    hitCallback(request, mach, data, true);
+    hitCallback(request, mach, data, true, 
+                initialRequestTime, forwardRequestTime, firstResponseTime);
 }
 
 void
 Sequencer::hitCallback(SequencerRequest* srequest,
                        GenericMachineType mach,
                        DataBlock& data,
-                       bool success)
+                       bool success,
+                       Time initialRequestTime,
+                       Time forwardRequestTime,
+                       Time firstResponseTime)
 {
     const RubyRequest & ruby_request = srequest->ruby_request;
     Address request_address(ruby_request.paddr);
@@ -445,6 +472,22 @@ Sequencer::hitCallback(SequencerRequest* srequest,
     if (miss_latency != 0) {
         g_system_ptr->getProfiler()->missLatency(miss_latency, type, mach);
 
+        if (mach == GenericMachineType_L1Cache_wCC) {
+            g_system_ptr->getProfiler()->missLatencyWcc(issued_time,
+                                                   initialRequestTime,
+                                                   forwardRequestTime,
+                                                   firstResponseTime,
+                                                   g_eventQueue_ptr->getTime());
+        }
+
+        if (mach == GenericMachineType_Directory) {
+            g_system_ptr->getProfiler()->missLatencyDir(issued_time,
+                                                   initialRequestTime,
+                                                   forwardRequestTime,
+                                                   firstResponseTime,
+                                                   g_eventQueue_ptr->getTime());
+        }
+
         if (Debug::getProtocolTrace()) {
             if (success) {
                 g_system_ptr->getProfiler()->
diff --git a/src/mem/ruby/system/Sequencer.hh b/src/mem/ruby/system/Sequencer.hh
index fecfc9a1a..4ab85dac8 100644
--- a/src/mem/ruby/system/Sequencer.hh
+++ b/src/mem/ruby/system/Sequencer.hh
@@ -80,12 +80,26 @@ class Sequencer : public RubyPort, public Consumer
                        GenericMachineType mach, 
                        DataBlock& data);
 
+    void writeCallback(const Address& address, 
+                       GenericMachineType mach, 
+                       DataBlock& data,
+                       Time initialRequestTime,
+                       Time forwardRequestTime,
+                       Time firstResponseTime);
+
     void readCallback(const Address& address, DataBlock& data);
 
     void readCallback(const Address& address, 
                       GenericMachineType mach, 
                       DataBlock& data);
 
+    void readCallback(const Address& address, 
+                      GenericMachineType mach, 
+                      DataBlock& data,
+                      Time initialRequestTime,
+                      Time forwardRequestTime,
+                      Time firstResponseTime);
+
     RequestStatus makeRequest(const RubyRequest & request);
     RequestStatus getRequestStatus(const RubyRequest& request);
     bool empty() const;
@@ -106,7 +120,10 @@ class Sequencer : public RubyPort, public Consumer
     void hitCallback(SequencerRequest* request, 
                      GenericMachineType mach,
                      DataBlock& data,
-                     bool success);
+                     bool success,
+                     Time initialRequestTime,
+                     Time forwardRequestTime,
+                     Time firstResponseTime);
 
     bool insertRequest(SequencerRequest* request);