stats.txt 文件中包含了详细的运行统计信息,仿真信息,cpu, cache miss缓存缺失次数,访存平均带宽等信息。重要的统计结果,比如sim_seconds 是总体仿真时间,sim_insts是cpu提交的指令数,host_inst_rate是gem5的性能。 --- Begin Simulation Statistics --- simSeconds 0.000489 # Number of seconds simulated (Second)...
hit_latency = Param.Cycles("The hit latency for this cache")+ write_latency = Param.Cycles("The write latency for this cache") response_latency =Param.Cycles("Additional cache latency for the return path to core on a miss"); #reset by bi classBaseCache(MemObject): type='BaseCache'cxx...
1. BaseCache* cache; 指针数据成员,用来指示base prefetcher的所属对象 2. Vector<PrefetcherListener> listeners; 承载当前prefetcher的listener 同时,因为Base class继承自SimObject,并且重写了regProbeListeners 成员函数,向Base注册3个listener:Hit, Miss, Fill 特别的,主要上图中的Listener构造函数的参数中,ProbeManag...
(3)设置BaseCache的一些没有默认值的参数。要查看所有可能的配置选项,并查找哪些是必需的,哪些是可选的,您必须查看SimObject的源代码。在本例中,我们使用的是BaseCache。 我们已经扩展了BaseCache并设置了BaseCache SimObject中没有默认值的大多数参数。接下来,让我们再看两个子类L1Cache,一个L1DCache和一个L1ICac...
--caches --l2cache \ --cpu-type=TimeSimpleCPU \ --mem-size=4GB \ --mem-type=DDR4_2400_8x8 4What information can we get and for what? Timing, memory bandwidth, miss rate, details of executed instructions, etc. ● Timing ● DCache miss rate ...
1. Memory_Controller 实现了SNI。2. Cache_Controller 实现了RNF层次，并引入了UD_T状态，替代了CHI spec中的UDP和UCE状态，有效避免了livelocks。具体状态转换图展示了从UC到I的箭头表示Replacement/WriteEvict，以及从I到SC的箭头表示ReadShared miss/ReadShared。L2和L3缓存的状态转换图揭示了Unique状态...
This work aims to analyze the impacts of cache configurations on miss rates of big data benchmarks with varying level 1 instruction (L1I) and data (L1D) caches using the gem5 simulator. The cache miss rate of nine big data applications from four benchmark suits is ana...
Then some code is added to the Boom processor design platform to obtain the number of branch prediction failure events and the number of cache miss events for subsequent adaptation work. When the Boom and the Gem5 simulator run the same benchmark, the microarchitecture-independent parameters are ...
-- cache controller buffer sizes: miss_buffer_size(MSHR),fill_buffer_size,prefetch_buffer_size,wb_buffer_size --> <!-- 0 means using ITRS default vdd --> <!-- "-1" means using default power gating virtual power supply voltage constrained by technology and computed automatically -->...
Cache Optimization Module in gem5-nvmain-hybrid-simulator (1)Architecture and Principle of Cache Optimization in DRAM-PCM hybrid memory adjust cache replacement policy according to cache miss penalty in DRAM-PCM hybrid memory system , for example: evict data block in LLC cache which fetched from PC...