Category : OS/2 Files
Archive   : VIDTEST.ZIP
Filename : VIDTEST.C

 
Output of file : VIDTEST.C contained in archive : VIDTEST.ZIP

/*

Vidtest.c

A rough benchmark on VIO performance

*/

#define INCL_NOPM
#define INCL_VIO
#define INCL_DOSINFOSEG

#include
#include
#include


char *mssg1 = "This is a test of the VioWrtCharStr call";
char *mssg2 = "This is a test for VioWrtTTY\r\n";


void main(void)
{
SEL selGDT,selLDT;
GINFOSEG far *pGDT;
ULONG time1,time2,time3;
USHORT len,i;

/* get GDT so we can get time */
DosGetInfoSeg(&selGDT,&selLDT);
pGDT = MAKEPGINFOSEG(selGDT);

/* benchmark VioWrtCharStr */
len = strlen(mssg1);
time1 = 0;
while(time1 != pGDT->msecs) time1 = pGDT->msecs; /* get time in msec */
for (i = 0; i<1000; i++)
VioWrtCharStr(mssg1,len,0,0,0);

/* benchmark VioWrtTTY */
time2 = 0;
len = strlen(mssg2);
while(time2 != pGDT->msecs) time2 = pGDT->msecs;
for (i = 0; i< 1000;i++)
VioWrtTTY(mssg2,len,0);
time3 = 0;
while(time3 != pGDT->msecs) time3 = pGDT->msecs;


/* print out results */
printf("\n\nBenchmark results:");
printf("\n\tVioWrtCharStr:\t%ld msec",time2-time1);
printf("\n\tVioWrtTTY: \t%ld msec",time3-time2);
printf("\n\nEffective throughput:");
printf("\n\tVioWrtCharStr:\t%.0f baud",strlen(mssg1)*8.0E6/(time2-time1));
printf("\n\tVioWrtTTY: \t%.0f baud",strlen(mssg2)*8.0E6/(time3-time2));


}


  3 Responses to “Category : OS/2 Files
Archive   : VIDTEST.ZIP
Filename : VIDTEST.C
”

  1. Daniel says:
    January 27, 2013 at 3:59 pm

    Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!

  2. Joshie says:
    March 18, 2014 at 4:57 pm

    This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.

  3. DiskingRound says:
    January 14, 2015 at 10:57 pm

    But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/