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-rw-r--r--src/mem/protocol/MOESI_hammer-cache.sm47
-rw-r--r--src/mem/protocol/MOESI_hammer-dir.sm8
-rw-r--r--src/mem/protocol/MOESI_hammer-msg.sm4
-rw-r--r--src/mem/protocol/RubySlicc_Types.sm2
-rw-r--r--src/mem/ruby/profiler/Profiler.cc99
-rw-r--r--src/mem/ruby/profiler/Profiler.hh24
-rw-r--r--src/mem/ruby/system/Sequencer.cc49
-rw-r--r--src/mem/ruby/system/Sequencer.hh19
8 files changed, 245 insertions, 7 deletions
diff --git a/src/mem/protocol/MOESI_hammer-cache.sm b/src/mem/protocol/MOESI_hammer-cache.sm
index 06ce69624..ae74e284f 100644
--- a/src/mem/protocol/MOESI_hammer-cache.sm
+++ b/src/mem/protocol/MOESI_hammer-cache.sm
@@ -136,6 +136,9 @@ machine(L1Cache, "AMD Hammer-like protocol")
int NumPendingMsgs, desc="Number of acks/data messages that this processor is waiting for";
bool Sharers, desc="On a GetS, did we find any other sharers in the system";
MachineID LastResponder, desc="last machine to send a response for this request";
+ Time InitialRequestTime, default="0", desc="time the initial requests was sent from the L1Cache";
+ Time ForwardRequestTime, default="0", desc="time the dir forwarded the request";
+ Time FirstResponseTime, default="0", desc="the time the first response was received";
}
external_type(TBETable) {
@@ -424,6 +427,7 @@ machine(L1Cache, "AMD Hammer-like protocol")
out_msg.Requestor := machineID;
out_msg.Destination.add(map_Address_to_Directory(address));
out_msg.MessageSize := MessageSizeType:Request_Control;
+ out_msg.InitialRequestTime := get_time();
TBEs[address].NumPendingMsgs := machineCount(MachineType:L1Cache); // One from each other cache (n-1) plus the memory (+1)
}
}
@@ -435,6 +439,7 @@ machine(L1Cache, "AMD Hammer-like protocol")
out_msg.Requestor := machineID;
out_msg.Destination.add(map_Address_to_Directory(address));
out_msg.MessageSize := MessageSizeType:Request_Control;
+ out_msg.InitialRequestTime := get_time();
TBEs[address].NumPendingMsgs := machineCount(MachineType:L1Cache); // One from each other cache (n-1) plus the memory (+1)
}
}
@@ -454,6 +459,8 @@ machine(L1Cache, "AMD Hammer-like protocol")
out_msg.Acks := 2;
}
out_msg.MessageSize := MessageSizeType:Response_Data;
+ out_msg.InitialRequestTime := in_msg.InitialRequestTime;
+ out_msg.ForwardRequestTime := in_msg.ForwardRequestTime;
}
}
}
@@ -483,6 +490,8 @@ machine(L1Cache, "AMD Hammer-like protocol")
out_msg.Acks := 2;
}
out_msg.MessageSize := MessageSizeType:Response_Data;
+ out_msg.InitialRequestTime := in_msg.InitialRequestTime;
+ out_msg.ForwardRequestTime := in_msg.ForwardRequestTime;
}
}
}
@@ -503,6 +512,8 @@ machine(L1Cache, "AMD Hammer-like protocol")
out_msg.Acks := 2;
}
out_msg.MessageSize := MessageSizeType:Response_Data;
+ out_msg.InitialRequestTime := in_msg.InitialRequestTime;
+ out_msg.ForwardRequestTime := in_msg.ForwardRequestTime;
}
}
}
@@ -517,6 +528,8 @@ machine(L1Cache, "AMD Hammer-like protocol")
out_msg.Acks := 1;
assert(in_msg.DirectedProbe == false);
out_msg.MessageSize := MessageSizeType:Response_Control;
+ out_msg.InitialRequestTime := in_msg.InitialRequestTime;
+ out_msg.ForwardRequestTime := in_msg.ForwardRequestTime;
}
}
}
@@ -531,6 +544,8 @@ machine(L1Cache, "AMD Hammer-like protocol")
out_msg.Acks := 1;
assert(in_msg.DirectedProbe == false);
out_msg.MessageSize := MessageSizeType:Response_Control;
+ out_msg.InitialRequestTime := in_msg.InitialRequestTime;
+ out_msg.ForwardRequestTime := in_msg.ForwardRequestTime;
}
}
}
@@ -580,7 +595,10 @@ machine(L1Cache, "AMD Hammer-like protocol")
sequencer.readCallback(address,
getNondirectHitMachType(in_msg.Address, in_msg.Sender),
- getCacheEntry(address).DataBlk);
+ getCacheEntry(address).DataBlk,
+ TBEs[address].InitialRequestTime,
+ TBEs[address].ForwardRequestTime,
+ TBEs[address].FirstResponseTime);
}
}
@@ -605,7 +623,10 @@ machine(L1Cache, "AMD Hammer-like protocol")
sequencer.writeCallback(address,
getNondirectHitMachType(address, in_msg.Sender),
- getCacheEntry(address).DataBlk);
+ getCacheEntry(address).DataBlk,
+ TBEs[address].InitialRequestTime,
+ TBEs[address].ForwardRequestTime,
+ TBEs[address].FirstResponseTime);
}
getCacheEntry(address).Dirty := true;
@@ -617,7 +638,10 @@ machine(L1Cache, "AMD Hammer-like protocol")
sequencer.writeCallback(address,
getNondirectHitMachType(address,
TBEs[address].LastResponder),
- getCacheEntry(address).DataBlk);
+ getCacheEntry(address).DataBlk,
+ TBEs[address].InitialRequestTime,
+ TBEs[address].ForwardRequestTime,
+ TBEs[address].FirstResponseTime);
getCacheEntry(address).Dirty := true;
}
@@ -649,6 +673,21 @@ machine(L1Cache, "AMD Hammer-like protocol")
TBEs[address].NumPendingMsgs := TBEs[address].NumPendingMsgs - in_msg.Acks;
DEBUG_EXPR(TBEs[address].NumPendingMsgs);
TBEs[address].LastResponder := in_msg.Sender;
+ if (TBEs[address].InitialRequestTime != zero_time() && in_msg.InitialRequestTime != zero_time()) {
+ assert(TBEs[address].InitialRequestTime == in_msg.InitialRequestTime);
+ }
+ if (in_msg.InitialRequestTime != zero_time()) {
+ TBEs[address].InitialRequestTime := in_msg.InitialRequestTime;
+ }
+ if (TBEs[address].ForwardRequestTime != zero_time() && in_msg.ForwardRequestTime != zero_time()) {
+ assert(TBEs[address].ForwardRequestTime == in_msg.ForwardRequestTime);
+ }
+ if (in_msg.ForwardRequestTime != zero_time()) {
+ TBEs[address].ForwardRequestTime := in_msg.ForwardRequestTime;
+ }
+ if (TBEs[address].FirstResponseTime == zero_time()) {
+ TBEs[address].FirstResponseTime := get_time();
+ }
}
}
@@ -700,6 +739,8 @@ machine(L1Cache, "AMD Hammer-like protocol")
out_msg.Acks := 2;
}
out_msg.MessageSize := MessageSizeType:Response_Data;
+ out_msg.InitialRequestTime := in_msg.InitialRequestTime;
+ out_msg.ForwardRequestTime := in_msg.ForwardRequestTime;
}
}
}
diff --git a/src/mem/protocol/MOESI_hammer-dir.sm b/src/mem/protocol/MOESI_hammer-dir.sm
index ae282ba3a..d4b36cded 100644
--- a/src/mem/protocol/MOESI_hammer-dir.sm
+++ b/src/mem/protocol/MOESI_hammer-dir.sm
@@ -645,6 +645,8 @@ machine(Directory, "AMD Hammer-like protocol")
out_msg.Destination.broadcast(MachineType:L1Cache); // Send to all L1 caches
out_msg.Destination.remove(in_msg.Requestor); // Don't include the original requestor
out_msg.MessageSize := MessageSizeType:Broadcast_Control;
+ out_msg.InitialRequestTime := in_msg.InitialRequestTime;
+ out_msg.ForwardRequestTime := get_time();
}
}
}
@@ -685,6 +687,8 @@ machine(Directory, "AMD Hammer-like protocol")
out_msg.Destination.broadcast(MachineType:L1Cache); // Send to all L1 caches
out_msg.Destination.remove(in_msg.Requestor); // Don't include the original requestor
out_msg.MessageSize := MessageSizeType:Broadcast_Control;
+ out_msg.InitialRequestTime := in_msg.InitialRequestTime;
+ out_msg.ForwardRequestTime := get_time();
}
}
}
@@ -701,6 +705,8 @@ machine(Directory, "AMD Hammer-like protocol")
out_msg.Destination.add(getPfEntry(address).Owner);
out_msg.MessageSize := MessageSizeType:Request_Control;
out_msg.DirectedProbe := true;
+ out_msg.InitialRequestTime := in_msg.InitialRequestTime;
+ out_msg.ForwardRequestTime := get_time();
}
}
} else {
@@ -712,6 +718,8 @@ machine(Directory, "AMD Hammer-like protocol")
out_msg.Destination.broadcast(MachineType:L1Cache); // Send to all L1 caches
out_msg.Destination.remove(in_msg.Requestor); // Don't include the original requestor
out_msg.MessageSize := MessageSizeType:Broadcast_Control;
+ out_msg.InitialRequestTime := in_msg.InitialRequestTime;
+ out_msg.ForwardRequestTime := get_time();
}
}
}
diff --git a/src/mem/protocol/MOESI_hammer-msg.sm b/src/mem/protocol/MOESI_hammer-msg.sm
index f414d599d..05a52b881 100644
--- a/src/mem/protocol/MOESI_hammer-msg.sm
+++ b/src/mem/protocol/MOESI_hammer-msg.sm
@@ -78,6 +78,8 @@ structure(RequestMsg, desc="...", interface="NetworkMessage") {
NetDest Destination, desc="Multicast destination mask";
MessageSizeType MessageSize, desc="size category of the message";
bool DirectedProbe, default="false", desc="probe filter directed probe";
+ Time InitialRequestTime, default="0", desc="time the initial requests was sent from the L1Cache";
+ Time ForwardRequestTime, default="0", desc="time the dir forwarded the request";
}
// ResponseMsg (and also unblock requests)
@@ -90,6 +92,8 @@ structure(ResponseMsg, desc="...", interface="NetworkMessage") {
bool Dirty, desc="Is the data dirty (different than memory)?";
int Acks, desc="How many messages this counts as";
MessageSizeType MessageSize, desc="size category of the message";
+ Time InitialRequestTime, default="0", desc="time the initial requests was sent from the L1Cache";
+ Time ForwardRequestTime, default="0", desc="time the dir forwarded the request";
}
enumeration(DMARequestType, desc="...", default="DMARequestType_NULL") {
diff --git a/src/mem/protocol/RubySlicc_Types.sm b/src/mem/protocol/RubySlicc_Types.sm
index 8dcdabeb8..9d3cd6634 100644
--- a/src/mem/protocol/RubySlicc_Types.sm
+++ b/src/mem/protocol/RubySlicc_Types.sm
@@ -101,8 +101,10 @@ external_type(NetDest, non_obj="yes") {
external_type(Sequencer) {
void readCallback(Address, DataBlock);
void readCallback(Address, GenericMachineType, DataBlock);
+ void readCallback(Address, GenericMachineType, DataBlock, Time, Time, Time);
void writeCallback(Address, DataBlock);
void writeCallback(Address, GenericMachineType, DataBlock);
+ void writeCallback(Address, GenericMachineType, DataBlock, Time, Time, Time);
void checkCoherence(Address);
void profileNack(Address, int, int, uint64);
}
diff --git a/src/mem/ruby/profiler/Profiler.cc b/src/mem/ruby/profiler/Profiler.cc
index 753fdd230..a42d919f7 100644
--- a/src/mem/ruby/profiler/Profiler.cc
+++ b/src/mem/ruby/profiler/Profiler.cc
@@ -286,6 +286,35 @@ Profiler::printStats(ostream& out, bool short_stats)
}
}
+ out << "miss_latency_wCC_issue_to_initial_request: "
+ << m_wCCIssueToInitialRequestHistogram << endl;
+ out << "miss_latency_wCC_initial_forward_request: "
+ << m_wCCInitialRequestToForwardRequestHistogram << endl;
+ out << "miss_latency_wCC_forward_to_first_response: "
+ << m_wCCForwardRequestToFirstResponseHistogram << endl;
+ out << "miss_latency_wCC_first_response_to_completion: "
+ << m_wCCFirstResponseToCompleteHistogram << endl;
+ out << "imcomplete_wCC_Times: " << m_wCCIncompleteTimes << endl;
+ out << "miss_latency_dir_issue_to_initial_request: "
+ << m_dirIssueToInitialRequestHistogram << endl;
+ out << "miss_latency_dir_initial_forward_request: "
+ << m_dirInitialRequestToForwardRequestHistogram << endl;
+ out << "miss_latency_dir_forward_to_first_response: "
+ << m_dirForwardRequestToFirstResponseHistogram << endl;
+ out << "miss_latency_dir_first_response_to_completion: "
+ << m_dirFirstResponseToCompleteHistogram << endl;
+ out << "imcomplete_dir_Times: " << m_dirIncompleteTimes << endl;
+
+ for (int i = 0; i < m_missMachLatencyHistograms.size(); i++) {
+ for (int j = 0; j < m_missMachLatencyHistograms[i].size(); j++) {
+ if (m_missMachLatencyHistograms[i][j].size() > 0) {
+ out << "miss_latency_" << RubyRequestType(i)
+ << "_" << GenericMachineType(j) << ": "
+ << m_missMachLatencyHistograms[i][j] << endl;
+ }
+ }
+ }
+
out << endl;
out << "All Non-Zero Cycle SW Prefetch Requests" << endl;
@@ -454,7 +483,24 @@ Profiler::clearStats()
for (int i = 0; i < m_machLatencyHistograms.size(); i++) {
m_machLatencyHistograms[i].clear(200);
}
+ m_missMachLatencyHistograms.resize(RubyRequestType_NUM);
+ for (int i = 0; i < m_missLatencyHistograms.size(); i++) {
+ m_missMachLatencyHistograms[i].resize(GenericMachineType_NUM+1);
+ for (int j = 0; j < m_missMachLatencyHistograms[i].size(); j++) {
+ m_missMachLatencyHistograms[i][j].clear(200);
+ }
+ }
m_allMissLatencyHistogram.clear(200);
+ m_wCCIssueToInitialRequestHistogram.clear(200);
+ m_wCCInitialRequestToForwardRequestHistogram.clear(200);
+ m_wCCForwardRequestToFirstResponseHistogram.clear(200);
+ m_wCCFirstResponseToCompleteHistogram.clear(200);
+ m_wCCIncompleteTimes = 0;
+ m_dirIssueToInitialRequestHistogram.clear(200);
+ m_dirInitialRequestToForwardRequestHistogram.clear(200);
+ m_dirForwardRequestToFirstResponseHistogram.clear(200);
+ m_dirFirstResponseToCompleteHistogram.clear(200);
+ m_dirIncompleteTimes = 0;
m_SWPrefetchLatencyHistograms.resize(CacheRequestType_NUM);
for (int i = 0; i < m_SWPrefetchLatencyHistograms.size(); i++) {
@@ -581,6 +627,59 @@ Profiler::missLatency(Time cycles,
m_allMissLatencyHistogram.add(cycles);
m_missLatencyHistograms[type].add(cycles);
m_machLatencyHistograms[respondingMach].add(cycles);
+ m_missMachLatencyHistograms[type][respondingMach].add(cycles);
+}
+
+void
+Profiler::missLatencyWcc(Time issuedTime,
+ Time initialRequestTime,
+ Time forwardRequestTime,
+ Time firstResponseTime,
+ Time completionTime)
+{
+ if ((issuedTime <= initialRequestTime) &&
+ (initialRequestTime <= forwardRequestTime) &&
+ (forwardRequestTime <= firstResponseTime) &&
+ (firstResponseTime <= completionTime)) {
+ m_wCCIssueToInitialRequestHistogram.add(initialRequestTime - issuedTime);
+
+ m_wCCInitialRequestToForwardRequestHistogram.add(forwardRequestTime -
+ initialRequestTime);
+
+ m_wCCForwardRequestToFirstResponseHistogram.add(firstResponseTime -
+ forwardRequestTime);
+
+ m_wCCFirstResponseToCompleteHistogram.add(completionTime -
+ firstResponseTime);
+ } else {
+ m_wCCIncompleteTimes++;
+ }
+}
+
+void
+Profiler::missLatencyDir(Time issuedTime,
+ Time initialRequestTime,
+ Time forwardRequestTime,
+ Time firstResponseTime,
+ Time completionTime)
+{
+ if ((issuedTime <= initialRequestTime) &&
+ (initialRequestTime <= forwardRequestTime) &&
+ (forwardRequestTime <= firstResponseTime) &&
+ (firstResponseTime <= completionTime)) {
+ m_dirIssueToInitialRequestHistogram.add(initialRequestTime - issuedTime);
+
+ m_dirInitialRequestToForwardRequestHistogram.add(forwardRequestTime -
+ initialRequestTime);
+
+ m_dirForwardRequestToFirstResponseHistogram.add(firstResponseTime -
+ forwardRequestTime);
+
+ m_dirFirstResponseToCompleteHistogram.add(completionTime -
+ firstResponseTime);
+ } else {
+ m_dirIncompleteTimes++;
+ }
}
// non-zero cycle prefetch request
diff --git a/src/mem/ruby/profiler/Profiler.hh b/src/mem/ruby/profiler/Profiler.hh
index de9834f05..3a11f0596 100644
--- a/src/mem/ruby/profiler/Profiler.hh
+++ b/src/mem/ruby/profiler/Profiler.hh
@@ -138,6 +138,18 @@ class Profiler : public SimObject, public Consumer
RubyRequestType type,
const GenericMachineType respondingMach);
+ void missLatencyWcc(Time issuedTime,
+ Time initialRequestTime,
+ Time forwardRequestTime,
+ Time firstResponseTime,
+ Time completionTime);
+
+ void missLatencyDir(Time issuedTime,
+ Time initialRequestTime,
+ Time forwardRequestTime,
+ Time firstResponseTime,
+ Time completionTime);
+
void swPrefetchLatency(Time t,
CacheRequestType type,
const GenericMachineType respondingMach);
@@ -200,6 +212,18 @@ class Profiler : public SimObject, public Consumer
std::vector<Histogram> m_missLatencyHistograms;
std::vector<Histogram> m_machLatencyHistograms;
+ std::vector< std::vector<Histogram> > m_missMachLatencyHistograms;
+ Histogram m_wCCIssueToInitialRequestHistogram;
+ Histogram m_wCCInitialRequestToForwardRequestHistogram;
+ Histogram m_wCCForwardRequestToFirstResponseHistogram;
+ Histogram m_wCCFirstResponseToCompleteHistogram;
+ int64 m_wCCIncompleteTimes;
+ Histogram m_dirIssueToInitialRequestHistogram;
+ Histogram m_dirInitialRequestToForwardRequestHistogram;
+ Histogram m_dirForwardRequestToFirstResponseHistogram;
+ Histogram m_dirFirstResponseToCompleteHistogram;
+ int64 m_dirIncompleteTimes;
+
Histogram m_allMissLatencyHistogram;
Histogram m_allSWPrefetchLatencyHistogram;
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);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-29 08:33:31 +0000