RootInputModule::ReadStats Struct Reference

for collecting statistics over multiple files. More...

Public Member Functions
void	add (const ReadStats &b)
	add other stats object.
void	addFromFile (const TFile *f)
	add current statistics from TFile object.
std::string	getString () const
	string suitable for printing.

Public Attributes
long	calls {0}
	number of read calls.
long	bytesRead {0}
	total number of bytes read.
long	bytesReadExtra {0}
	what TFile thinks was the overhead.

Detailed Description

for collecting statistics over multiple files.

Definition at line 188 of file RootInputModule.h.

Member Function Documentation

add()

void add ( const ReadStats & b )

inline

add other stats object.

Definition at line 193 of file RootInputModule.h.

      {
        calls += b.calls;
        bytesRead += b.bytesRead;
        bytesReadExtra += b.bytesReadExtra;
      }

addFromFile()

void addFromFile ( const TFile * f )

inline

add current statistics from TFile object.

Definition at line 200 of file RootInputModule.h.

      {
        calls += f->GetReadCalls();
        bytesRead += f->GetBytesRead();
        bytesReadExtra += f->GetBytesReadExtra();
      }

getString()

std::string getString ( ) const

inline

string suitable for printing.

Definition at line 207 of file RootInputModule.h.

      {
        std::string s;
        s += "read: " + std::to_string(bytesRead) + " Bytes";
        s += ", overhead: " + std::to_string(bytesReadExtra) + " Bytes";
        s += ", Read() calls: " + std::to_string(calls);
        return s;
      }

Member Data Documentation

bytesRead

long bytesRead {0}

total number of bytes read.

Definition at line 190 of file RootInputModule.h.

{0}; 

bytesReadExtra

long bytesReadExtra {0}

what TFile thinks was the overhead.

Definition at line 191 of file RootInputModule.h.

{0}; 

calls

long calls {0}

number of read calls.

Definition at line 189 of file RootInputModule.h.

{0}; 

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The documentation for this struct was generated from the following file:

• framework/modules/rootio/include/RootInputModule.h