LLC access trace

[SWAPNIL BHOSALE]

Hi,

I am trying to get a trace of LLC/L3 accesses in a text file by using the basic file operations as shown below-

***************************************************************************************************

 void CacheCntlr::accessCache(

      Core::mem_op_t mem_op_type, IntPtr ca_address, UInt32 offset,

      Byte* data_buf, UInt32 data_length, bool update_replacement)

{

   ofstream myfile;

   switch (mem_op_type)

   {

      case Core::READ:

      case Core::READ_EX:

if(! m_next_cache_cntlr)

         {

    /****** Getting accesses to LLC in myfile  **********/

  myfile.open ("example2.txt", fstream::out | fstream::app);

  myfile << ca_address << "\t" << ShmemPerfModel::_USER_THREAD << "\n";

  myfile.close();

}

*****************************************************************************************************

I inserted the above code snippet in "cache_cntlr.cpp" file under the function "void CacheCntlr::accessCache()" to get the LLC access trace. However, the text file named "example2.txt" is not getting created. Could you please help me with this?  

[Wim Heirman]

Hi Swapnil,

The accessCache function is only used in the L1. You'll want to put your code in CacheCntlr::processShmemReqFromPrevCache instead.

Regards,

Wim

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[Zilmarij Iqbal]

Hi,

I am trying to do the same with NUCA as the last level cache. Cache_cntlr.cc doesn't seem the right place to start off.

What is the right place I must search for?

Thanks,

Zilmarij Iqbal

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