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Public Types | Public Member Functions | Private Attributes

edm::MallocOptionSetter Class Reference

#include <MallocOpts.h>

List of all members.

Public Types

typedef MallocOpts::opt_type opt_type

Public Member Functions

void adjustMallocParams ()
std::string error_message () const
MallocOpts get () const
bool hasErrors () const
 MallocOptionSetter ()
bool retrieveFromCpuType ()
bool retrieveFromEnv ()
void set_mmap_max (opt_type mmap_max)
void set_mmap_thr (opt_type mmap_thr)
void set_top_pad (opt_type top_pad)
void set_trim_thr (opt_type trim_thr)

Private Attributes

bool changed_
std::string error_message_
MallocOpts values_

Detailed Description

Definition at line 64 of file MallocOpts.h.


Member Typedef Documentation

Definition at line 67 of file MallocOpts.h.


Constructor & Destructor Documentation

edm::MallocOptionSetter::MallocOptionSetter ( )

Definition at line 143 of file MallocOpts.cc.

References adjustMallocParams(), dtNoiseDBValidation_cfg::cerr, error_message_, hasErrors(), retrieveFromCpuType(), and retrieveFromEnv().

                                        :
    changed_(false)
  {
    if(retrieveFromEnv() || retrieveFromCpuType())
      {
        adjustMallocParams();
        if(hasErrors())
          {
            std::cerr << "ERROR: Reset of malloc options has fails:\n"
                      << error_message_ << "\n";
          }
      }
  }

Member Function Documentation

void edm::MallocOptionSetter::adjustMallocParams ( )

Definition at line 157 of file MallocOpts.cc.

References changed_, error_message_, edm::MallocOpts::mmap_max_, edm::MallocOpts::mmap_thr_, edm::MallocOpts::top_pad_, edm::MallocOpts::trim_thr_, and values_.

Referenced by MallocOptionSetter(), and edm::service::SimpleMemoryCheck::SimpleMemoryCheck().

  {
    if(changed_==false) return; // only adjust if they changed
    error_message_.clear();
    changed_ = false;

#ifdef M_MMAP_MAX
    if(mallopt(M_MMAP_MAX,values_.mmap_max_)<0)
      error_message_ += "Could not set M_MMAP_MAX\n"; 
#endif
#ifdef M_TRIM_THRESHOLD
    if(mallopt(M_TRIM_THRESHOLD,values_.trim_thr_)<0)
      error_message_ += "Could not set M_TRIM_THRESHOLD\n"; 
#endif
#ifdef M_TOP_PAD
    if(mallopt(M_TOP_PAD,values_.top_pad_)<0)
      error_message_ += "ERROR: Could not set M_TOP_PAD\n";
#endif
#ifdef M_MMAP_THRESHOLD
    if(mallopt(M_MMAP_THRESHOLD,values_.mmap_thr_)<0)
      error_message_ += "ERROR: Could not set M_MMAP_THRESHOLD\n";
#endif
  }
std::string edm::MallocOptionSetter::error_message ( ) const [inline]

Definition at line 74 of file MallocOpts.h.

References error_message_.

Referenced by edm::service::SimpleMemoryCheck::SimpleMemoryCheck().

{ return error_message_; }
MallocOpts edm::MallocOptionSetter::get ( void  ) const [inline]

Definition at line 85 of file MallocOpts.h.

References values_.

Referenced by edm::service::SimpleMemoryCheck::SimpleMemoryCheck().

{ return values_; }
bool edm::MallocOptionSetter::hasErrors ( ) const [inline]

Definition at line 73 of file MallocOpts.h.

References error_message_.

Referenced by MallocOptionSetter(), and edm::service::SimpleMemoryCheck::SimpleMemoryCheck().

{ return !error_message_.empty(); }
bool edm::MallocOptionSetter::retrieveFromCpuType ( )

Definition at line 117 of file MallocOpts.cc.

References changed_, and values_.

Referenced by MallocOptionSetter().

  {
    bool rc=true;

    switch(get_cpu_type())
      {
      case AMD_CPU:
        {
          values_ = amd_opts;
          changed_=true;
          break;
        }
      case INTEL_CPU:
        {
          values_ = intel_opts;
          changed_=true;
          break;
        }
      case UNKNOWN_CPU:
      default:
        rc=false;
      }

    return rc;
  }
bool edm::MallocOptionSetter::retrieveFromEnv ( )

Definition at line 181 of file MallocOpts.cc.

References dtNoiseDBValidation_cfg::cerr, changed_, gather_cfg::cout, edm::MallocOpts::mmap_max_, edm::MallocOpts::mmap_thr_, AlCaHLTBitMon_QueryRunRegistry::string, edm::MallocOpts::top_pad_, edm::MallocOpts::trim_thr_, and values_.

Referenced by MallocOptionSetter().

  {
    const char* par = getenv("CMSRUN_MALLOC_RESET");
    if(par==0) return false; // leave quickly here
    std::string spar(par);
    bool rc = false;
      
    // CMSRUN_MALLOC_RESET = "mmap_max trim_thres top_pad mmap_thres"
      
    if(spar.size()>1)
      {
        std::istringstream ist(spar);
        ist >> values_.mmap_max_ >> values_.trim_thr_
            >> values_.top_pad_ >> values_.mmap_thr_;

        if(ist.bad())
          {
            std::cerr << "bad malloc options in CMSRUN_MALLOC_RESET: "
                      << spar << "\n"
                      << "format is: "
                      << "CMSRUN_MALLOC_RESET=\"mmap_max trim_thres top_pad mmap_thres\"\n";
          }
        else
          {
            std::cout << "MALLOC_OPTIONS> Reset options: "
                      << "CMSRUN_MALLOC_RESET=" << par << "\n";
          }
        rc=true;
        changed_=true;
      }

    return rc;
  }
void edm::MallocOptionSetter::set_mmap_max ( opt_type  mmap_max) [inline]

Definition at line 76 of file MallocOpts.h.

References changed_, edm::MallocOpts::mmap_max_, and values_.

Referenced by edm::service::SimpleMemoryCheck::SimpleMemoryCheck().

    { values_.mmap_max_=mmap_max; changed_=true; }
void edm::MallocOptionSetter::set_mmap_thr ( opt_type  mmap_thr) [inline]

Definition at line 82 of file MallocOpts.h.

References changed_, edm::MallocOpts::mmap_thr_, and values_.

Referenced by edm::service::SimpleMemoryCheck::SimpleMemoryCheck().

    { values_.mmap_thr_=mmap_thr; changed_=true; }
void edm::MallocOptionSetter::set_top_pad ( opt_type  top_pad) [inline]

Definition at line 80 of file MallocOpts.h.

References changed_, edm::MallocOpts::top_pad_, and values_.

Referenced by edm::service::SimpleMemoryCheck::SimpleMemoryCheck().

    { values_.top_pad_=top_pad; changed_=true; }
void edm::MallocOptionSetter::set_trim_thr ( opt_type  trim_thr) [inline]

Definition at line 78 of file MallocOpts.h.

References changed_, edm::MallocOpts::trim_thr_, and values_.

Referenced by edm::service::SimpleMemoryCheck::SimpleMemoryCheck().

    { values_.trim_thr_=trim_thr; changed_=true; }

Member Data Documentation

Definition at line 91 of file MallocOpts.h.

Referenced by adjustMallocParams(), error_message(), hasErrors(), and MallocOptionSetter().