CPU Proc Data Types

Description

Data Structures
struct	stPrevData
	Holds status of previous data such as Total Major Faults Raised,Total CPU Used Time,User Used CPU Time,System Used CPU Time. More...
struct	stCPUInfo
	Holds status of CPU information such as Total Time and Idle Time of CPU. More...
struct	EnvVarNode
struct	stProcData
	Holds status of Process data such as : More...

Macros
#define	LINE_LIMIT   256
	FILE LINE LIMIT.
#define	NAME_LIMIT   20
	FILE NAME LIMIT.
#define	SLEEP_SECS   60
	Sleep Interval for the data collection.
#define	TIME_TO_RUN_SECS   0
	0 means, tool should run until it is killed manually
#define	BUFF_SIZE_64   64
#define	BUFF_SIZE_16   16
#define	DEFAULT_MEM_THRESHOLD   1536
#define	MONITOR_ALL_PROC_DEF   0
#define	DEFAULT_DYNAMIC   1
#define	ITERATION_THRESHOLD   25
#define	TELEMETRY_ONLY_DEF   0
#define	CPU_MASK   0x10
#define	MEMORY_MASK   0x08
#define	FDCOUNT_MASK   0x04
#define	THREADCOUNT_MASK   0x02
#define	LOADAVG_MASK   0x02
#define	CLICOUNT_MASK   0x01
#define	SYS_DEF_MASK   0x1F
#define	PROC_DEF_MASK   0x1E
#define	MAX(x, y)   ((x>y)?x:y)
#define	PROC_EVENT_NONE   0x00000000
#define	PROC_EVENT_FORK   0x00000001
#define	PROC_EVENT_EXEC   0x00000002
#define	CONFIG_PATH   "/opt"
#define	LOG_PATH   "/opt/logs"

Typedefs
typedef unsigned int	uint
typedef struct EnvVarNode	EnvVarNode

Functions
char *	removespaces (char *str)
int	read_config_param (const char *paramname, const char *filename, char *res)
char *	GetCurTimeStamp ()
	This function gives Current Date and Time in the format Year-Month-Day and Hours-Minutes-Seconds. More...
void	GetMemParams (char *filename, unsigned long *memParam, char *param)
	This function gives information about the Memory parameters. More...
void	GetLoadAverage (float *loadavg)
	This function gives Load Average values. More...
void	GetUsedMemory (unsigned long *mem)
	This function gives information about Used memory. More...
void	GetIdlePercent (float *idlePercent)
	This function gives the Idle percent value. More...
void	CreateExclusionList ()
	This function to exclude the process list of least concern.
void	GetFDCount (char *filename, int *FDCount)
	This function gives information about the File Descriptors in process. More...
void	GetFDCountSystem (int *FDCountSystem)
	This function gives information about the File Descriptors at system level. More...
uint	SetMask (char *res)
	This is to set the bit mask for System/Process.
int	LogProcData (stProcData *procData, int ppid=0, char *pname="", int is_dynamic=0, bool telemetryOnly=0)
	This function gives status information about the process. More...
static int	netlink_connect ()
static int	subscribe_proc_events (int netlink_sock, bool enable)
static int	handle_process_events (int netlink_sock)
static void *	handle_proc_ev_thread (void *arg)
int	checkifdigit (char *ch, int size)
bool	CheckMemLimit (int itr, unsigned long memLimit)
int	main (int argc, char **argv)
	Main Function. More...
const char *	rdk_logger_module_fetch (void)

Variables
uint	PROC_MASK = 0x1E
uint	SYS_MASK = 0x1F
pthread_mutex_t	mtx
struct stCPUInfo	prevCPUInfo
map< unsigned int, struct stPrevData >	prevData
FILE *	fp_selectedps = NULL
FILE *	fp_stat = NULL
FILE *	fp_dataOut = NULL
string	outputDir = "/opt/logs" "/cpuprocanalyzer/"
string	outputDynamicDir = "/opt/logs" "/cpuprocanalyzer/dynamic/"
long	totalTimeElapsed_sec = 0
char	strTime [80]
list< string >	exclude_process_list
list< string >::iterator	it
static volatile bool	need_exit = false

---

Data Structure Documentation

stPrevData

struct stPrevData

Holds status of previous data such as Total Major Faults Raised,Total CPU Used Time,User Used CPU Time,System Used CPU Time.

Definition at line 135 of file cpuproc_analyzer.cpp.

Collaboration diagram for stPrevData:

Data Fields
unsigned int	prevTotalMajFaultsRaised
unsigned long	prevTotalUsedCPUTime
unsigned long	prevUserUsedCPUTime
unsigned long	prevSystemUsedCPUTime
double	prevTotalCPUTime_usec
bool	status

stCPUInfo

struct stCPUInfo

Holds status of CPU information such as Total Time and Idle Time of CPU.

Definition at line 150 of file cpuproc_analyzer.cpp.

Collaboration diagram for stCPUInfo:

Data Fields
unsigned long long	total
unsigned long long	idle

EnvVarNode

struct EnvVarNode

Definition at line 46 of file rdk_logger_util.c.

Collaboration diagram for EnvVarNode:

Data Fields
int	number
char *	name
char *	value
struct EnvVarNode *	next

stProcData

struct stProcData

Holds status of Process data such as :

• PID of process, Process State, Parent PID, Process Group ID, Session ID of the Process.
• The Kernel Flags word of the Process, Major Faults, Minor Faults, Nice value, Number of threads in the process.
• Resident Set Size, Virtual memory size, Real-time scheduling priority, Scheduling Policy.

Definition at line 499 of file cpuproc_analyzer.cpp.

Collaboration diagram for stProcData:

Public Member Functions
void	ReadProcStat (FILE *fp_procStat)
	This function reads status of the Process and gives information like : More...
void	OutFilename (char *outProcFilename, int is_dynamic)
	This function constructs a file name based on parameters such as - output Directory Name,PID value,s_comm data,PID value,s_comm data. For example : "/opt/logs/cpuprocanalyzer/<PID value>/s_comm/<PID value>/s_comm". More...
void	OutFilename (char *outProcFilename, int ppid, char *pname)
	This function constructs a file name based on parameters such as - output Directory Name,PPID value,Parent process Name,PID value,s_comm data. For example : "/opt/logs/cpuprocanalyzer/<PPID value>/<Parent process name>/<PID value>/s_comm". More...
void	GetTotalUsedTime (unsigned long *outTotalTime)
	This function gives Total CPU used time. More...
void	GetUserUsedTime (unsigned long *outUserTime)
	This function gives User used CPU time. More...
void	GetSystemUsedTime (unsigned long *outSystemTime)
	This function gives information about System used CPU time. More...
void	GetTotalMjrFlts (unsigned int *outTotalMjrFlts)
	This function gives the information about Total Major Faults. More...
Data Fields
int	d_pid
char	s_comm [1000]
char	c_state
int	d_ppid
int	d_pgrp
int	d_session
int	d_tty_nr
int	d_tpgid
unsigned	u_flags
unsigned long	lu_minflt
unsigned long	lu_cminflt
unsigned long	lu_majflt
unsigned long	lu_cmajflt
unsigned long	lu_utime
unsigned long	lu_stime
long	ld_cutime
long	ld_cstime
long	ld_priority
long	ld_nice
long	ld_num_threads
long	ld_itrealvalue
unsigned long long	llu_starttime
unsigned long	lu_vsize
long	ld_rss
unsigned long	lu_rsslim
unsigned long	lu_startcode
unsigned long	lu_endcode
unsigned long	lu_startstack
unsigned long	lu_kstkesp
unsigned long	lu_kstkeip
unsigned long	lu_signal
unsigned long	lu_blocked
unsigned long	lu_sigignore
unsigned long	lu_sigcatch
unsigned long	lu_wchan
unsigned long	lu_nswap
unsigned long	lu_cnswap
int	d_exit_signal
int	d_processor
unsigned int	u_rt_priority
unsigned int	u_policy
unsigned long long	llu_delayacct_blkio_ticks
unsigned long	lu_guest_time
long	ld_cguest_time

Function Documentation

GetCurTimeStamp()

char* GetCurTimeStamp

(

)

This function gives Current Date and Time in the format Year-Month-Day and Hours-Minutes-Seconds.

@ret Returns date and time in string format.

Definition at line 628 of file cpuproc_analyzer.cpp.

GetMemParams()

void GetMemParams	(	char *	filename,
		unsigned long *	memParam,
		char *	param
	)

This function gives information about the Memory parameters.

• Information such as Virtual Memory Size, Resident Set Size and Size Of Stack

Parameters

[in]	filename	Name of the File
[out]	memParam	Memory Parameters
[in]	param	It can be parameter like Virtual Memory Size, Resident Set Size and Size Of Stack.

Definition at line 649 of file cpuproc_analyzer.cpp.

GetLoadAverage()

void GetLoadAverage

(

float *

loadavg

)

This function gives Load Average values.

Output Example = 0.75 0.33 0.25 1/25 1747 where :

• First three fields : Load averages over the last 1,5 and 15 minutes.
• The fourth field consists of two numbers separated by a slash (/), where : First number is the number of currently executing kernel scheduling entities(processes,threads); this will be less than or equal to the number of CPUs.
• The value after the slash is the number of kernel scheduling entities that currently exist on the system.
• The fifth field is the PID of the process.

Parameters

[out]

loadavg

Load Average value

Definition at line 692 of file cpuproc_analyzer.cpp.

GetUsedMemory()

void GetUsedMemory

(

unsigned long *

mem

)

This function gives information about Used memory.

• It reports statistics about memory usage on the system and gives information like Total usable RAM and Free Memory.
• Used Memory is calculated by subtracting Free Memory from Total Memory.

Parameters

[out]

mem

Used Memory value

Definition at line 715 of file cpuproc_analyzer.cpp.

GetIdlePercent()

void GetIdlePercent

(

float *

idlePercent

)

This function gives the Idle percent value.

• Idle time is the amount of time the CPU was not busy or otherwise, the amount of time it executed the System Idle process.
• Idle time actually measures unused CPU capacity.

Parameters

[out]

idlepercent

Idle Percent Value

Definition at line 765 of file cpuproc_analyzer.cpp.

GetFDCount()

void GetFDCount	(	char *	filename,
		int *	FDCount
	)

This function gives information about the File Descriptors in process.

Parameters

[in]	d_pid	PID of process
[in]	FDCount	File Descriptor in process

Definition at line 817 of file cpuproc_analyzer.cpp.

GetFDCountSystem()

void GetFDCountSystem

(

int *

FDCountSystem

)

This function gives information about the File Descriptors at system level.

Parameters

[in]

FDCountSystem

File Descriptors at system level

Definition at line 839 of file cpuproc_analyzer.cpp.

LogProcData()

int LogProcData	(	stProcData *	procData,
		int	ppid = 0,
		char *	pname = "",
		int	is_dynamic = 0,
		bool	telemetryOnly = 0
	)

This function gives status information about the process.

• Information such as Process Name, PID of the parent, Virtual memory size, Resident set size, Size of Stack.

Parameters

[in]	procData	Process Data
[in]	ppid	Parent pid,default to 0
[in]	pname	Parent Name
[in]	is_dynamic	Flag to check dynamically created process.

Definition at line 923 of file cpuproc_analyzer.cpp.

main()

int main	(	int	argc,
		char **	argv
	)

Main Function.

Fetches information such as Load Average value, Used Memory value and Idle Percent value for all the Processes in the list from /opt/logs/cpuprocanalyzer/loadandmem.data.

Definition at line 1471 of file cpuproc_analyzer.cpp.