The linear generator generates sequential requests from a start to an end address, with a fixed block size. More...
#include <linear_gen.hh>
Public Member Functions | |
| LinearGen (SimObject &obj, RequestorID requestor_id, Tick _duration, Addr start_addr, Addr end_addr, Addr _blocksize, Addr cacheline_size, Tick min_period, Tick max_period, uint8_t read_percent, Addr data_limit) | |
| Create a linear address sequence generator. More... | |
| void | enter () |
| Enter this generator state. More... | |
| PacketPtr | getNextPacket () |
| Get the next generated packet. More... | |
| Tick | nextPacketTick (bool elastic, Tick delay) const |
| Determine the tick when the next packet is available. More... | |
 Public Member Functions inherited from StochasticGen | |
| StochasticGen (SimObject &obj, RequestorID requestor_id, Tick _duration, Addr start_addr, Addr end_addr, Addr _blocksize, Addr cacheline_size, Tick min_period, Tick max_period, uint8_t read_percent, Addr data_limit) | |
| Public Member Functions inherited from BaseGen | |
| BaseGen (SimObject &obj, RequestorID requestor_id, Tick _duration) | |
| Create a base generator. More... | |
| virtual | ~BaseGen () |
| std::string | name () const |
| Get the name, useful for DPRINTFs. More... | |
| virtual void | exit () |
| Exit this generator state. More... | |
Private Attributes | |
| Addr | nextAddr |
| Address of next request. More... | |
| Addr | dataManipulated |
| Counter to determine the amount of data manipulated. More... | |
Additional Inherited Members | |
| Public Attributes inherited from BaseGen | |
| const Tick | duration |
| Time to spend in this state. More... | |
| Protected Member Functions inherited from BaseGen | |
| PacketPtr | getPacket (Addr addr, unsigned size, const MemCmd &cmd, Request::FlagsType flags=0) |
| Generate a new request and associated packet. More... | |
| Protected Attributes inherited from StochasticGen | |
| const Addr | startAddr |
| Start of address range. More... | |
| const Addr | endAddr |
| End of address range. More... | |
| const Addr | blocksize |
| Blocksize and address increment. More... | |
| const Addr | cacheLineSize |
| Cache line size in the simulated system. More... | |
| const Tick | minPeriod |
| Request generation period. More... | |
| const Tick | maxPeriod |
| const uint8_t | readPercent |
| Percent of generated transactions that should be reads. More... | |
| const Addr | dataLimit |
| Maximum amount of data to manipulate. More... | |
| Protected Attributes inherited from BaseGen | |
| const std::string | _name |
| Name to use for status and debug printing. More... | |
| const RequestorID | requestorId |
| The RequestorID used for generating requests. More... | |
Detailed Description
The linear generator generates sequential requests from a start to an end address, with a fixed block size.
A fraction of the requests are reads, as determined by the read percent. There is an optional data limit for when to stop generating new requests.
Definition at line 59 of file linear_gen.hh.
Constructor & Destructor Documentation
◆ LinearGen()
|
inline |
Create a linear address sequence generator.
Set min_period == max_period for a fixed inter-transaction time.
- Parameters
-
obj SimObject owning this sequence generator requestor_id RequestorID related to the memory requests _duration duration of this state before transitioning start_addr Start address end_addr End address _blocksize Size used for transactions injected cacheline_size cache line size in the system min_period Lower limit of random inter-transaction time max_period Upper limit of random inter-transaction time read_percent Percent of transactions that are reads data_limit Upper limit on how much data to read/write
Definition at line 81 of file linear_gen.hh.
Member Function Documentation
◆ enter()
|
virtual |
Enter this generator state.
Implements BaseGen.
Definition at line 47 of file linear_gen.cc.
References dataManipulated, nextAddr, and StochasticGen::startAddr.
◆ getNextPacket()
|
virtual |
Get the next generated packet.
- Returns
- A packet to be sent at the current tick
Implements BaseGen.
Definition at line 55 of file linear_gen.cc.
References StochasticGen::blocksize, dataManipulated, DPRINTF, StochasticGen::endAddr, BaseGen::getPacket(), nextAddr, Random::random(), random_mt, StochasticGen::readPercent, MemCmd::ReadReq, StochasticGen::startAddr, and MemCmd::WriteReq.
◆ nextPacketTick()
Determine the tick when the next packet is available.
MaxTick means that there will not be any further packets in the current activation cycle of the generator.
- Parameters
-
elastic should the injection respond to flow control or not delay time the previous packet spent waiting
- Returns
- next tick when a packet is available
Implements BaseGen.
Definition at line 88 of file linear_gen.cc.
References curTick(), StochasticGen::dataLimit, dataManipulated, DPRINTF, StochasticGen::maxPeriod, MaxTick, StochasticGen::minPeriod, Random::random(), random_mt, and sc_core::wait().
Member Data Documentation
◆ dataManipulated
|
private |
Counter to determine the amount of data manipulated.
Used to determine if we should continue generating requests.
Definition at line 109 of file linear_gen.hh.
Referenced by enter(), getNextPacket(), and nextPacketTick().
◆ nextAddr
|
private |
Address of next request.
Definition at line 102 of file linear_gen.hh.
Referenced by enter(), and getNextPacket().
The documentation for this class was generated from the following files:
- cpu/testers/traffic_gen/linear_gen.hh
- cpu/testers/traffic_gen/linear_gen.cc