gem5  v20.1.0.0
Public Types | Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
MemFootprintProbe Class Reference

Probe to track footprint of accessed memory Two granularity of footprint measurement i.e. More...

#include <mem_footprint.hh>

Inheritance diagram for MemFootprintProbe:
BaseMemProbe SimObject EventManager Serializable Drainable Stats::Group

Public Types

typedef std::unordered_set< AddrAddrSet
 
- Public Types inherited from SimObject
typedef SimObjectParams Params
 

Public Member Functions

 MemFootprintProbe (MemFootprintProbeParams *p)
 
void regStats () override
 Callback to set stat parameters. More...
 
void statReset ()
 
- Public Member Functions inherited from BaseMemProbe
 BaseMemProbe (BaseMemProbeParams *params)
 
void regProbeListeners () override
 Register probe listeners for this object. More...
 
- Public Member Functions inherited from SimObject
const Paramsparams () const
 
 SimObject (const Params *_params)
 
virtual ~SimObject ()
 
virtual const std::string name () const
 
virtual void init ()
 init() is called after all C++ SimObjects have been created and all ports are connected. More...
 
virtual void loadState (CheckpointIn &cp)
 loadState() is called on each SimObject when restoring from a checkpoint. More...
 
virtual void initState ()
 initState() is called on each SimObject when not restoring from a checkpoint. More...
 
virtual void regProbePoints ()
 Register probe points for this object. More...
 
ProbeManagergetProbeManager ()
 Get the probe manager for this object. More...
 
virtual PortgetPort (const std::string &if_name, PortID idx=InvalidPortID)
 Get a port with a given name and index. More...
 
virtual void startup ()
 startup() is the final initialization call before simulation. More...
 
DrainState drain () override
 Provide a default implementation of the drain interface for objects that don't need draining. More...
 
virtual void memWriteback ()
 Write back dirty buffers to memory using functional writes. More...
 
virtual void memInvalidate ()
 Invalidate the contents of memory buffers. More...
 
void serialize (CheckpointOut &cp) const override
 Serialize an object. More...
 
void unserialize (CheckpointIn &cp) override
 Unserialize an object. More...
 
- Public Member Functions inherited from EventManager
EventQueueeventQueue () const
 
void schedule (Event &event, Tick when)
 
void deschedule (Event &event)
 
void reschedule (Event &event, Tick when, bool always=false)
 
void schedule (Event *event, Tick when)
 
void deschedule (Event *event)
 
void reschedule (Event *event, Tick when, bool always=false)
 
void wakeupEventQueue (Tick when=(Tick) -1)
 This function is not needed by the usual gem5 event loop but may be necessary in derived EventQueues which host gem5 on other schedulers. More...
 
void setCurTick (Tick newVal)
 
 EventManager (EventManager &em)
 Event manger manages events in the event queue. More...
 
 EventManager (EventManager *em)
 
 EventManager (EventQueue *eq)
 
- Public Member Functions inherited from Serializable
 Serializable ()
 
virtual ~Serializable ()
 
void serializeSection (CheckpointOut &cp, const char *name) const
 Serialize an object into a new section. More...
 
void serializeSection (CheckpointOut &cp, const std::string &name) const
 
void unserializeSection (CheckpointIn &cp, const char *name)
 Unserialize an a child object. More...
 
void unserializeSection (CheckpointIn &cp, const std::string &name)
 
- Public Member Functions inherited from Drainable
DrainState drainState () const
 Return the current drain state of an object. More...
 
virtual void notifyFork ()
 Notify a child process of a fork. More...
 
- Public Member Functions inherited from Stats::Group
 Group (Group *parent, const char *name=nullptr)
 Construct a new statistics group. More...
 
virtual ~Group ()
 
virtual void resetStats ()
 Callback to reset stats. More...
 
virtual void preDumpStats ()
 Callback before stats are dumped. More...
 
void addStat (Stats::Info *info)
 Register a stat with this group. More...
 
const std::map< std::string, Group * > & getStatGroups () const
 Get all child groups associated with this object. More...
 
const std::vector< Info * > & getStats () const
 Get all stats associated with this object. More...
 
void addStatGroup (const char *name, Group *block)
 Add a stat block as a child of this block. More...
 
const InforesolveStat (std::string name) const
 Resolve a stat by its name within this group. More...
 
 Group ()=delete
 
 Group (const Group &)=delete
 
Groupoperator= (const Group &)=delete
 

Protected Member Functions

void insertAddr (Addr addr, AddrSet *set, uint64_t limit)
 
void handleRequest (const ProbePoints::PacketInfo &pkt_info) override
 Callback to analyse intercepted Packets. More...
 
- Protected Member Functions inherited from Drainable
 Drainable ()
 
virtual ~Drainable ()
 
virtual void drainResume ()
 Resume execution after a successful drain. More...
 
void signalDrainDone () const
 Signal that an object is drained. More...
 

Protected Attributes

const uint8_t cacheLineSizeLg2
 Cache Line size for footprint measurement (log2) More...
 
const uint8_t pageSizeLg2
 Page size for footprint measurement (log2) More...
 
const uint64_t totalCacheLinesInMem
 
const uint64_t totalPagesInMem
 
Stats::Scalar fpCacheLine
 Footprint at cache line size granularity. More...
 
Stats::Scalar fpCacheLineTotal
 Footprint at cache line size granularity, since simulation begin. More...
 
Stats::Scalar fpPage
 Footprint at page granularity. More...
 
Stats::Scalar fpPageTotal
 Footprint at page granularity, since simulation begin. More...
 
AddrSet cacheLines
 
AddrSet cacheLinesAll
 
AddrSet pages
 
AddrSet pagesAll
 
Systemsystem
 
- Protected Attributes inherited from SimObject
const SimObjectParams * _params
 Cached copy of the object parameters. More...
 
- Protected Attributes inherited from EventManager
EventQueueeventq
 A pointer to this object's event queue. More...
 

Additional Inherited Members

- Static Public Member Functions inherited from SimObject
static void serializeAll (CheckpointOut &cp)
 Serialize all SimObjects in the system. More...
 
static SimObjectfind (const char *name)
 Find the SimObject with the given name and return a pointer to it. More...
 
- Static Public Member Functions inherited from Serializable
static const std::string & currentSection ()
 Gets the fully-qualified name of the active section. More...
 
static void serializeAll (const std::string &cpt_dir)
 Serializes all the SimObjects. More...
 
static void unserializeGlobals (CheckpointIn &cp)
 

Detailed Description

Probe to track footprint of accessed memory Two granularity of footprint measurement i.e.

cache line and page

Definition at line 54 of file mem_footprint.hh.

Member Typedef Documentation

◆ AddrSet

typedef std::unordered_set<Addr> MemFootprintProbe::AddrSet

Definition at line 57 of file mem_footprint.hh.

Constructor & Destructor Documentation

◆ MemFootprintProbe()

MemFootprintProbe::MemFootprintProbe ( MemFootprintProbeParams *  p)

Definition at line 44 of file mem_footprint.cc.

References System::cacheLineSize(), fatal_if, isPowerOf2(), MipsISA::p, and system.

Member Function Documentation

◆ handleRequest()

void MemFootprintProbe::handleRequest ( const ProbePoints::PacketInfo pkt_info)
overrideprotectedvirtual

◆ insertAddr()

void MemFootprintProbe::insertAddr ( Addr  addr,
AddrSet set,
uint64_t  limit 
)
protected

Definition at line 89 of file mem_footprint.cc.

References addr, and X86ISA::limit.

Referenced by handleRequest().

◆ regStats()

void MemFootprintProbe::regStats ( )
overridevirtual

Callback to set stat parameters.

This callback is typically used for complex stats (e.g., distributions) that need parameters in addition to a name and a description. Stat names and descriptions should typically be set from the constructor usingo from the constructor using the ADD_STAT macro.

Reimplemented from Stats::Group.

Definition at line 63 of file mem_footprint.cc.

References Stats::DataWrap< Derived, InfoProxyType >::desc(), Stats::DataWrap< Derived, InfoProxyType >::flags(), fpCacheLine, fpCacheLineTotal, fpPage, fpPageTotal, SimObject::name(), Stats::DataWrap< Derived, InfoProxyType >::name(), Stats::nonan, Stats::nozero, Stats::registerResetCallback(), Stats::Group::regStats(), and statReset().

◆ statReset()

void MemFootprintProbe::statReset ( )

Definition at line 118 of file mem_footprint.cc.

References cacheLines, and pages.

Referenced by regStats().

Member Data Documentation

◆ cacheLines

AddrSet MemFootprintProbe::cacheLines
protected

Definition at line 85 of file mem_footprint.hh.

Referenced by handleRequest(), and statReset().

◆ cacheLinesAll

AddrSet MemFootprintProbe::cacheLinesAll
protected

Definition at line 87 of file mem_footprint.hh.

Referenced by handleRequest().

◆ cacheLineSizeLg2

const uint8_t MemFootprintProbe::cacheLineSizeLg2
protected

Cache Line size for footprint measurement (log2)

Definition at line 66 of file mem_footprint.hh.

Referenced by handleRequest().

◆ fpCacheLine

Stats::Scalar MemFootprintProbe::fpCacheLine
protected

Footprint at cache line size granularity.

Definition at line 76 of file mem_footprint.hh.

Referenced by handleRequest(), and regStats().

◆ fpCacheLineTotal

Stats::Scalar MemFootprintProbe::fpCacheLineTotal
protected

Footprint at cache line size granularity, since simulation begin.

Definition at line 78 of file mem_footprint.hh.

Referenced by handleRequest(), and regStats().

◆ fpPage

Stats::Scalar MemFootprintProbe::fpPage
protected

Footprint at page granularity.

Definition at line 80 of file mem_footprint.hh.

Referenced by handleRequest(), and regStats().

◆ fpPageTotal

Stats::Scalar MemFootprintProbe::fpPageTotal
protected

Footprint at page granularity, since simulation begin.

Definition at line 82 of file mem_footprint.hh.

Referenced by handleRequest(), and regStats().

◆ pages

AddrSet MemFootprintProbe::pages
protected

Definition at line 89 of file mem_footprint.hh.

Referenced by handleRequest(), and statReset().

◆ pagesAll

AddrSet MemFootprintProbe::pagesAll
protected

Definition at line 91 of file mem_footprint.hh.

Referenced by handleRequest().

◆ pageSizeLg2

const uint8_t MemFootprintProbe::pageSizeLg2
protected

Page size for footprint measurement (log2)

Definition at line 68 of file mem_footprint.hh.

Referenced by handleRequest().

◆ system

System* MemFootprintProbe::system
protected

Definition at line 92 of file mem_footprint.hh.

Referenced by handleRequest(), and MemFootprintProbe().

◆ totalCacheLinesInMem

const uint64_t MemFootprintProbe::totalCacheLinesInMem
protected

Definition at line 69 of file mem_footprint.hh.

Referenced by handleRequest().

◆ totalPagesInMem

const uint64_t MemFootprintProbe::totalPagesInMem
protected

Definition at line 70 of file mem_footprint.hh.

Referenced by handleRequest().


The documentation for this class was generated from the following files:

Generated on Wed Sep 30 2020 14:02:27 for gem5 by doxygen 1.8.17