perf.c File Reference

This program estimates DNS name server performance. More...

#include "config.h"
#include <signal.h>
#include "util/log.h"
#include "util/locks.h"
#include "util/net_help.h"
#include "util/data/msgencode.h"
#include "util/data/msgreply.h"
#include "util/data/msgparse.h"
#include "sldns/sbuffer.h"
#include "sldns/wire2str.h"
#include "sldns/str2wire.h"
#include <sys/time.h>

Data Structures
struct	perfinfo
	Global info for perf. More...
struct	perfio
	I/O port for perf. More...

Macros
#define	START_IO_INTERVAL   10
	number of msec between starting io ports
#define	IO_TIMEOUT   10
	number of msec timeout on io ports

Functions
static void	usage (char *nm)
	usage information for perf
static RETSIGTYPE	perf_sigh (int sig)
	signal handler for user quit
static int	perf_tv_smaller (struct timeval *t1, struct timeval *t2)
	timeval compare, t1 < t2
static void	perf_tv_add (struct timeval *t1, struct timeval *t2)
	timeval add, t1 += t2
static void	perf_tv_subtract (struct timeval *t1, struct timeval *t2)
	timeval subtract, t1 -= t2
static void	perfsetup (struct perfinfo *info)
	setup perf test environment
static void	perffree (struct perfinfo *info)
	cleanup perf test environment
static void	perfsend (struct perfinfo *info, size_t n, struct timeval *now)
	send new query for io
static void	perfreply (struct perfinfo *info, size_t n, struct timeval *now)
	got reply for io
static void	perftimeout (struct perfinfo *info, size_t n, struct timeval *now)
	got timeout for io
static void	stat_printout (struct perfinfo *info, struct timeval *now, struct timeval *elapsed)
	print nice stats about qps
static void	perfselect (struct perfinfo *info)
	wait for new events for performance test
static void	perfendstats (struct perfinfo *info)
	show end stats
static void	perfmain (struct perfinfo *info)
	perform the performance test
static int	qlist_parse_line (sldns_buffer *buf, char *p)
	parse a query line to a packet into buffer
static void	qlist_grow_capacity (struct perfinfo *info)
	grow query list capacity
static void	qlist_add_line (struct perfinfo *info, char *line, int no)
	setup query list in info
static void	qlist_read_file (struct perfinfo *info, char *fname)
	setup query list in info
int	main (int argc, char *argv[])
	main program for perf

Variables
static struct perfinfo *	sig_info
	signal handler global info
int	optind
	getopt global, in case header files fail to declare it.
char *	optarg
	getopt global, in case header files fail to declare it.

Detailed Description

This program estimates DNS name server performance.