diff options
Diffstat (limited to 'src/mem/bus.hh')
| -rw-r--r-- | src/mem/bus.hh | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/mem/bus.hh b/src/mem/bus.hh index 7492cf622..5e9023c89 100644 --- a/src/mem/bus.hh +++ b/src/mem/bus.hh @@ -57,6 +57,7 @@ #include "base/types.hh" #include "mem/mem_object.hh" #include "params/BaseBus.hh" +#include "sim/stats.hh" /** * The base bus contains the common elements of the non-coherent and @@ -179,6 +180,11 @@ class BaseBus : public MemObject */ void recvRetry(PortID port_id); + /** + * Register stats for the layer + */ + void regStats(); + private: /** The bus this layer is a part of. */ @@ -246,6 +252,14 @@ class BaseBus : public MemObject /** event used to schedule a release of the layer */ EventWrapper<Layer, &Layer::releaseLayer> releaseEvent; + /** + * Stats for occupancy and utilization. These stats capture + * the time the bus spends in the busy state and are thus only + * relevant when the memory system is in timing mode. + */ + Stats::Scalar occupancy; + Stats::Formula utilization; + }; /** cycles of overhead per transaction */ @@ -381,6 +395,20 @@ class BaseBus : public MemObject virtual ~BaseBus(); + /** + * Stats for transaction distribution and data passing through the + * bus. The transaction distribution is globally counting + * different types of commands. The packet count and total packet + * size are two-dimensional vectors that are indexed by the bus + * slave port and master port id (thus the neighbouring master and + * neighbouring slave), summing up both directions (request and + * response). + */ + Stats::Formula throughput; + Stats::Vector transDist; + Stats::Vector2d pktCount; + Stats::Vector2d totPktSize; + public: virtual void init(); @@ -393,6 +421,8 @@ class BaseBus : public MemObject virtual unsigned int drain(DrainManager *dm) = 0; + virtual void regStats(); + }; #endif //__MEM_BUS_HH__ |