Benchmark for terminal apps

term_bench.c

#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>

#define CLS "\e[2J"

#define COUNT 1000

int w,h,mode;

long double tv1,tvg;

struct lt {
  long double t;
  char buf[1024];
  int div;
} ;

struct lt l[64];

int li=0;

void g_begin()
{
  struct timeval tv;
  gettimeofday(&tv,NULL);
  tvg=((long double)tv.tv_sec)+
    ((long double)(tv.tv_usec)/1000000.);
}

void g_end()
{
  struct timeval tv;
  gettimeofday(&tv,NULL);
  printf("Total  :  %Lg �s\n",((long double)tv.tv_sec)+((long double)(tv.tv_usec)/1000000.) - tvg);
}

void t_begin()
{
  struct timeval tv;
  gettimeofday(&tv,NULL);
  tv1=((long double)tv.tv_sec)+
    ((long double)(tv.tv_usec)/1000000.);
}


long double t_end()
{
  struct timeval tv;
  gettimeofday(&tv,NULL);
  return ((long double)tv.tv_sec)+((long double)(tv.tv_usec)/1000000.) - tv1;
}

void push_result(char *strmode, char *str, int div)
{
  l[li].t=t_end();
  l[li].div=div;
  snprintf(l[li].buf,1024,"%s: %s",strmode,str);
  li++;
}

void print_result()
{
  int i;
  for ( i=0 ; i<li ; i++ )
    {
      printf("%s: %#6Lg �s\n",l[i].buf,l[i].t*1000000/l[i].div);
    }
}

static inline void gotoXY(int x, int y)
{
  printf("\e[%d;%dH",y,x);
}
static inline void scrollUP()
{
  printf("\eM");
}
static inline void scrollDOWN()
{
  printf("\eD");
}

void color()
{
  switch(mode)
    {
    case 0:
      break;
    case 1: // rand-color-1
      printf("\e[%dm",(rand()%10)+30);
      break;
    case 2: // rand-color-2
      printf("\e[%d;%dm",(rand()%10)+30,(rand()%10)+40);
      break;
    case 3: // rand-color-3
      printf("\e[%d;%d;%dm",(rand()%10)+30,(rand()%10)+40,(rand()%10)+0);
      break;
    default: // mono
      printf("\e[0;37;40m");
    }
}

void bench_gotoXY()
{
  gotoXY(rand()%(w+1),rand()%(h+1));
  color(mode);
  putc((rand()%26)+65,stdout);
}


void bench_gotoYC()
{
  int i;
  gotoXY(0,rand()%(h+1));
  for (i=0; i<w;i++ )
    {
      color(mode);
      putc((rand()%26)+65,stdout);
    }
}

void bench_gotoYL()
{
  int i;
  char buf[w+1];
  gotoXY(0,rand()%(h+1));
  color(mode);
  for (i=0; i<w;i++ )
    buf[i]=(rand()%26)+65;
  buf[w]='\0';
  printf("%s",buf);

}

void bench_scrollUP()
{
  int i;
  gotoXY(0,0);
  scrollUP();
  for (i=0; i<w;i++ )
    {
      color(mode);
      putc((rand()%26)+65,stdout);
    }
}

void bench_scrollDOWN()
{
  int i;
  gotoXY(0,h);
  scrollDOWN();
  for (i=0; i<w;i++ )
    {
      color(mode);
      putc((rand()%26)+65,stdout);
    }
}

int main ( int argc, char **argv)
{
  int i;
  char *strmode[4]={"monochrome    ",
                    "1 color attr  ",
                    "2 color attrs ",
                    "3 color attrs "};
  w=atoi(argv[1]);
  h=atoi(argv[2]);

  g_begin();
  for ( mode=0 ; mode < 4; mode++ )
    {
      printf(CLS); t_begin();
      for ( i=0; i<COUNT; i++ )
        bench_gotoXY();
      push_result(strmode[mode],"goto (X,Y), put a char              ",COUNT);
      printf(CLS); t_begin();
      for ( i=0; i<COUNT; i++ )
        bench_gotoYC();
      push_result(strmode[mode],"goto (Y,0), put W chars             ",COUNT);
      printf(CLS); t_begin();
      for ( i=0; i<COUNT; i++ )
        bench_gotoYL();
      push_result(strmode[mode],"goto (Y,0), put a line              ",COUNT);
      printf(CLS); t_begin();
      for ( i=0; i<COUNT; i++ )
        bench_scrollUP();
      push_result(strmode[mode],"goto (0,0), put W chars, scrollUP   ",COUNT);
      printf(CLS); t_begin();
      for ( i=0; i<COUNT; i++ )
        bench_scrollDOWN();
      push_result(strmode[mode],"goto (0,H), put W chars, scrollDOWN ",COUNT);
      printf(CLS);
    }
  color(-1);
  printf(CLS "\n");
  printf("mode          : action                              : time / action\n");
  print_result();
  g_end();
  return 0;

}