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

#include <mem_footprint.hh>

Inheritance diagram for MemFootprintProbe:

Public Types
typedef std::unordered_set< Addr >	AddrSet

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 Params *	params () 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...

ProbeManager *	getProbeManager ()
	Get the probe manager for this object. More...

virtual Port &	getPort (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
EventQueue *	eventQueue () 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 Info *	resolveStat (std::string name) const
	Resolve a stat by its name within this group. More...

	Group ()=delete

	Group (const Group &)=delete

Group &	operator= (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

System *	system

Protected Attributes inherited from SimObject
const SimObjectParams *	_params
	Cached copy of the object parameters. More...

Protected Attributes inherited from EventManager
EventQueue *	eventq
	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 SimObject *	find (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

Callback to analyse intercepted Packets.

Implements BaseMemProbe.

Definition at line 96 of file mem_footprint.cc.

References ProbePoints::PacketInfo::addr, cacheLines, cacheLinesAll, cacheLineSizeLg2, ProbePoints::PacketInfo::cmd, fpCacheLine, fpCacheLineTotal, fpPage, fpPageTotal, insertAddr(), System::isMemAddr(), MemCmd::isRequest(), pages, pagesAll, pageSizeLg2, system, totalCacheLinesInMem, and totalPagesInMem.

◆ 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:

mem/probes/mem_footprint.hh
mem/probes/mem_footprint.cc

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ AddrSet

Constructor & Destructor Documentation

◆ MemFootprintProbe()

Member Function Documentation

◆ handleRequest()

◆ insertAddr()

◆ regStats()

◆ statReset()

Member Data Documentation

◆ cacheLines

◆ cacheLinesAll

◆ cacheLineSizeLg2

◆ fpCacheLine

◆ fpCacheLineTotal

◆ fpPage

◆ fpPageTotal

◆ pages

◆ pagesAll

◆ pageSizeLg2

◆ system

◆ totalCacheLinesInMem

◆ totalPagesInMem