edm::MallocOptionSetter Class Reference

#include <MallocOpts.h>

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

typedef MallocOpts::opt_type edm::MallocOptionSetter::opt_type

Definition at line 67 of file MallocOpts.h.

Constructor & Destructor Documentation

edm::MallocOptionSetter::MallocOptionSetter

(

)

Definition at line 143 of file MallocOpts.cc.

References adjustMallocParams(), benchmark_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 Options.Options::__getitem__(), and 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 benchmark_cfg::cerr, changed_, gather_cfg::cout, edm::MallocOpts::mmap_max_, edm::MallocOpts::mmap_thr_, Gflash::par, 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

bool edm::MallocOptionSetter::changed_

private

Definition at line 88 of file MallocOpts.h.

Referenced by adjustMallocParams(), retrieveFromCpuType(), retrieveFromEnv(), set_mmap_max(), set_mmap_thr(), set_top_pad(), and set_trim_thr().

std::string edm::MallocOptionSetter::error_message_

private

Definition at line 91 of file MallocOpts.h.

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

MallocOpts edm::MallocOptionSetter::values_

private

Definition at line 89 of file MallocOpts.h.

Referenced by adjustMallocParams(), get(), retrieveFromCpuType(), retrieveFromEnv(), set_mmap_max(), set_mmap_thr(), set_top_pad(), and set_trim_thr().