From: Jan Stary <hans@stare.cz>
Subject: drop benchmarks/ubench
To: ports@openbsd.org
Date: Thu, 1 Jan 2026 22:36:33 +0100

I genuinely don't think there is any loss in ditching this.
The source hasn't been touched in 25 years, the homepage doesn't exist,
and it is not a benchmark of anything.

CPU performance is measured by timing this:

unsigned cpucalc(pmin)	/* performs rather senseless calcs */
unsigned pmin;
{
  double x,y;
  unsigned i,j,k=0;
  i=pmin;
  for (j=0;j<i;j++)
    if ( j%67 )
      k+=j%(i-j+1);
    else
      {
        x=i-j;
        y=log(1.0+x);
	x=abs(sqrt(y/(2.0+x))*(x*cos(atan(y/(3.0+x)))+y*sin(atan(y/(4.0+x)))));
	if ( x > 10.0 )
	  y=pow(1.0+j/(5.0+x),y/(6.0+x));
	else
	  y=pow(1.0+y/(1+j),x);
	x=x*exp(1.0/(1.0+y));
	k+=x;
      }
  i=k%99;
  if ( i==0 ) i++;
  return i;
}

It "will spawn about 2 concurrent processes for each CPU available
on the system. This ensures all available raw CPU horsepower is used."
This is my PC during that CPU benchmark:

CPU0:  100% user,  0.0% nice,  0.0% sys,  0.0% spin,  0.0% intr,  0.0% idle
CPU1:  0.0% user,  0.0% nice,  0.0% sys,  0.0% spin,  0.0% intr,  100% idle
CPU2:  0.0% user,  0.0% nice,  0.0% sys,  0.0% spin,  0.0% intr,  100% idle
CPU3:  0.0% user,  0.0% nice,  0.0% sys,  0.0% spin,  0.0% intr,  100% idle
CPU4:  100% user,  0.0% nice,  0.0% sys,  0.0% spin,  0.0% intr,  0.0% idle
CPU5:  0.0% user,  0.0% nice,  0.0% sys,  0.0% spin,  0.0% intr,  100% idle
CPU6:  0.0% user,  0.0% nice,  0.0% sys,  0.0% spin,  0.0% intr,  100% idle
CPU7:  0.0% user,  0.0% nice,  0.0% sys,  0.0% spin,  0.0% intr,  100% idle

Similar lolz for mem performance; the average of the two is
"the Ubench AVG benchmark which is supposed to represent the true
computing power of the system."

	Jan