#include <brrip_rp.hh>

Inheritance diagram for BRRIPRP:

Classes
struct	BRRIPReplData
	BRRIP-specific implementation of replacement data. More...

Public Types
typedef BRRIPRPParams	Params
	Convenience typedef. More...

Public Types inherited from BaseReplacementPolicy
typedef BaseReplacementPolicyParams	Params
	Convenience typedef. More...

Public Types inherited from SimObject
typedef SimObjectParams	Params

Public Member Functions
	BRRIPRP (const Params *p)
	Construct and initiliaze this replacement policy. More...

	~BRRIPRP ()
	Destructor. More...

void	invalidate (const std::shared_ptr< ReplacementData > &replacement_data) const override
	Invalidate replacement data to set it as the next probable victim. More...

void	touch (const std::shared_ptr< ReplacementData > &replacement_data) const override
	Touch an entry to update its replacement data. More...

void	reset (const std::shared_ptr< ReplacementData > &replacement_data) const override
	Reset replacement data. More...

ReplaceableEntry *	getVictim (const ReplacementCandidates &candidates) const override
	Find replacement victim using rrpv. More...

std::shared_ptr< ReplacementData >	instantiateEntry () override
	Instantiate a replacement data entry. More...

Public Member Functions inherited from BaseReplacementPolicy
	BaseReplacementPolicy (const Params *p)
	Construct and initiliaze this replacement policy. More...

virtual	~BaseReplacementPolicy ()
	Destructor. 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...

virtual void	regProbeListeners ()
	Register probe listeners 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	regStats ()
	Callback to set stat parameters. More...

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 Attributes
const unsigned	numRRPVBits
	Number of RRPV bits. More...

const bool	hitPriority
	The hit priority (HP) policy replaces entries that do not receive cache hits over any cache entry that receives a hit, while the frequency priority (FP) policy replaces infrequently re-referenced entries. More...

const unsigned	btp
	Bimodal throtle parameter. More...

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)

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...

Detailed Description

Definition at line 60 of file brrip_rp.hh.

Member Typedef Documentation

◆ Params

typedef BRRIPRPParams BRRIPRP::Params

Convenience typedef.

Definition at line 110 of file brrip_rp.hh.

Constructor & Destructor Documentation

◆ BRRIPRP()

BRRIPRP::BRRIPRP ( const Params * p )

Construct and initiliaze this replacement policy.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer; redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution; neither the name of the copyright holders nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Definition at line 38 of file brrip_rp.cc.

References fatal_if, and numRRPVBits.

◆ ~BRRIPRP()

BRRIPRP::~BRRIPRP ( )

inline

Destructor.

Definition at line 120 of file brrip_rp.hh.

Member Function Documentation

◆ getVictim()

ReplaceableEntry * BRRIPRP::getVictim ( const ReplacementCandidates & candidates ) const

overridevirtual

Find replacement victim using rrpv.

Parameters

cands Replacement candidates, selected by indexing policy.

Returns: Replacement entry to be replaced.

Implements BaseReplacementPolicy.

Definition at line 91 of file brrip_rp.cc.

References ReplaceableEntry::replacementData.

◆ instantiateEntry()

std::shared_ptr< ReplacementData > BRRIPRP::instantiateEntry ( )

overridevirtual

Instantiate a replacement data entry.

Returns: A shared pointer to the new replacement data.

Implements BaseReplacementPolicy.

Definition at line 140 of file brrip_rp.cc.

References numRRPVBits.

◆ invalidate()

void BRRIPRP::invalidate ( const std::shared_ptr< ReplacementData > & replacement_data ) const

overridevirtual

Invalidate replacement data to set it as the next probable victim.

Set RRPV as the the most distant re-reference.

Parameters

replacement_data Replacement data to be invalidated.

Implements BaseReplacementPolicy.

Definition at line 46 of file brrip_rp.cc.

◆ reset()

void BRRIPRP::reset ( const std::shared_ptr< ReplacementData > & replacement_data ) const

overridevirtual

Reset replacement data.

Used when an entry is inserted. Set RRPV according to the insertion policy used.

Parameters

replacement_data Replacement data to be reset.

Implements BaseReplacementPolicy.

Definition at line 73 of file brrip_rp.cc.

References btp, Random::random(), and random_mt.

◆ touch()

void BRRIPRP::touch ( const std::shared_ptr< ReplacementData > & replacement_data ) const

overridevirtual

Touch an entry to update its replacement data.

Parameters

replacement_data Replacement data to be touched.

Implements BaseReplacementPolicy.

Definition at line 57 of file brrip_rp.cc.

References hitPriority.

Member Data Documentation

◆ btp

const unsigned BRRIPRP::btp

protected

Bimodal throtle parameter.

Value in the range [0,100] used to decide if a new entry is inserted with long or distant re-reference.

Definition at line 106 of file brrip_rp.hh.

Referenced by reset().

◆ hitPriority

const bool BRRIPRP::hitPriority

protected

The hit priority (HP) policy replaces entries that do not receive cache hits over any cache entry that receives a hit, while the frequency priority (FP) policy replaces infrequently re-referenced entries.

Definition at line 100 of file brrip_rp.hh.

Referenced by touch().

◆ numRRPVBits

const unsigned BRRIPRP::numRRPVBits

protected

Number of RRPV bits.

An entry that saturates its RRPV has the longest possible re-reference interval, that is, it is likely not to be used in the near future, and is among the best eviction candidates. A maximum RRPV of 1 implies in a NRU.

Definition at line 93 of file brrip_rp.hh.

Referenced by BRRIPRP(), and instantiateEntry().

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

mem/cache/replacement_policies/brrip_rp.hh
mem/cache/replacement_policies/brrip_rp.cc

Classes

Public Types

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Params

Constructor & Destructor Documentation

◆ BRRIPRP()

◆ ~BRRIPRP()

Member Function Documentation

◆ getVictim()

◆ instantiateEntry()

◆ invalidate()

◆ reset()

◆ touch()

Member Data Documentation

◆ btp

◆ hitPriority

◆ numRRPVBits