loadrec.cpp File Reference

Implements a load recorder, useful for simulating loads to test CPU clock daemons and settings. More...

#include "Options.hpp"
#include "types.hpp"
#include "constants.hpp"
#include "errors.hpp"
#include "utility.hpp"
#include "clas.hpp"
#include "version.hpp"
#include "sys/io.hpp"
#include "sys/sysctl.hpp"
#include <chrono>
#include <thread>
#include <memory>
#include <sys/resource.h>

Include dependency graph for loadrec.cpp:

Namespaces
	anonymous_namespace{loadrec.cpp}
	File local scope.

Typedefs
template<auto Ownership>
using	anonymous_namespace{loadrec.cpp}::ofile = io::file< Ownership, io::write >
	Output file type alias. More...

Enumerations
enum	anonymous_namespace{loadrec.cpp}::OE {   anonymous_namespace{loadrec.cpp}::OE::USAGE, anonymous_namespace{loadrec.cpp}::OE::IVAL_DURATION, anonymous_namespace{loadrec.cpp}::OE::IVAL_POLL, anonymous_namespace{loadrec.cpp}::OE::FILE_OUTPUT,   anonymous_namespace{loadrec.cpp}::OE::FILE_PID, anonymous_namespace{loadrec.cpp}::OE::FLAG_VERBOSE, anonymous_namespace{loadrec.cpp}::OE::OPT_UNKNOWN, anonymous_namespace{loadrec.cpp}::OE::OPT_NOOPT,   anonymous_namespace{loadrec.cpp}::OE::OPT_DASH, anonymous_namespace{loadrec.cpp}::OE::OPT_LDASH, anonymous_namespace{loadrec.cpp}::OE::OPT_DONE }
	An enum for command line parsing. More...

Functions
template<typename... MsgTs>
void	anonymous_namespace{loadrec.cpp}::verbose (MsgTs &&... msg)
	Outputs the given printf style message on stderr if g.verbose is set. More...
void	anonymous_namespace{loadrec.cpp}::init ()
	Set up output to the given file.
void	anonymous_namespace{loadrec.cpp}::read_args (int const argc, char const *const argv[])
	Parse command line arguments. More...
void	anonymous_namespace{loadrec.cpp}::print_sysctls ()
	Print the sysctls. More...
void	anonymous_namespace{loadrec.cpp}::run ()
	Report the load frames. More...
int	main (int argc, char *argv[])
	Main routine, setup and execute daemon, print errors. More...

Variables
constexpr const flag_t	anonymous_namespace{loadrec.cpp}::FEATURES
	The set of supported features. More...
struct {
bool	verbose {false}
	Verbosity flag.
ms	duration {30000}
	Recording duration in ms.
ms	interval {25}
	Recording sample interval in ms.
ofile< io::link >	fout = io::fout
	The output stream either io::fout (stdout) or a file.
const char *	outfilename {nullptr}
	The user provided output file name.
const SysctlOnce< coreid_t, 2 >	ncpu {1U, {CTL_HW, HW_NCPU}}
	The number of CPU cores/threads.
}	anonymous_namespace{loadrec.cpp}::g
	The global state.
const char *const	anonymous_namespace{loadrec.cpp}::USAGE = "[-hv] [-d ival] [-p ival] [-o file]"
	The short usage string.
const Parameter< OE >	anonymous_namespace{loadrec.cpp}::PARAMETERS []
	Definitions of command line parameters. More...

Detailed Description

Implements a load recorder, useful for simulating loads to test CPU clock daemons and settings.

Function Documentation

main()

int main	(	int	argc,
		char *	argv[]
	)

Main routine, setup and execute daemon, print errors.

Parameters

argc,argv

The command line arguments

Returns

An exit code

See also

Exit