vxworks下硬盘测速程序

void speed(int buflen,int mod)
{
/*int mod = 0;*/
int len=50;
FILE *fp;
unsigned int i=0,j=0,tmp,tmp2;
float t=0.0;
char *str = "/ata00/ch2.dat";
char* data = (char*)malloc(buflen);
if(mod ==0)
{
str ="/bd0/ch2.dat";
len = 50;
}
else if(mod==1)
str ="/ata00/ch2.dat";
else
str="/ata00:2/mx.dat";
 
for(i=0;i<buflen;i++)
{
data[i] = i&0xff;
}
 
fp=fopen(str,"w+");
 if(fp==NULL)
   {
    logMsg("fopen error\n",0,0,0,0,0,0);
    return;
   }
    /*printf("test '%s' speed %dM data writted!\n",str,len);*/
if(buflen>1024)
   logMsg("test '%s' speed %dM data writted(buflen:%dK)!\n",str,len,buflen/1024,0,0,0);
else
logMsg("test '%s' speed %dM data writted(buflen:%d)!\n",str,len,buflen,0,0,0);
    tmp = tickGet();
    i = 1024*len*1024/buflen;

    for(j=0;j<i;j++)
    {
         fwrite(data,buflen,1,fp);
    }
    fclose(fp);
    tmp = tickGet()-tmp ;
    t = tmp*1.0/60;
   /* printf("Write speed:%f MB/s  (%dM/%ds)",len*1.0/tmp,len,tmp);*/
    logMsg("Write speed:%3.2f MB/s  (%dM/%2.2fs)\n",len*1.0/t,len,t,0,0,0);
   

   taskDelay(60*1);
    fp=fopen(str,"r+");
 
    tmp = tickGet();
    i = 1024*len*1024/buflen;

       for(j=0;j<i;j++)
       {
           fread(data,buflen,1,fp);
       }
    fclose(fp);
    tmp = tickGet()-tmp ;
    t = tmp*1.0/60;
   /* printf("\n Read speed:%f MB/s  (%dM/%ds)\n",len*1.0/tmp,len,tmp);*/
    logMsg(" Read speed:%3.2f MB/s  (%dM/%2.2fs)\n\n",len*1.0/t,len,t,0,0,0);    
} 

void speed3()
{//SATA
    int i=0;
    
    for(i=0;i<10;i++)
    speed(2<<i,4);
    
    for(i=0;i<10;i++)
   speed((2<<i)*1024,4);

}
void speed4()
{//usb
    int i=0;
    
    for(i=0;i<10;i++)
speed(2<<i,0);
    
    for(i=0;i<10;i++)
speed((2<<i)*1024,0);
}