Subject: how fast ist this machine really?
To: None <port-i386@netbsd.org>
From: Ignatios Souvatzis <ignatios@cs.uni-bonn.de>
List: port-i386
Date: 12/06/2005 15:27:24
How fast does this machine's clock really run? Or to ask another way:

Does

  NetBSD tiger 3.0_RC5 NetBSD 3.0_RC5 (GENERIC) #0: Thu Dec  1 01:48:31
  UTC 2005 builds@b4.netbsd.org:/home/builds/ab/netbsd-3-0-RC5/i386/
  200511302123Z-obj/home/builds/ab/netbsd-3-0-RC5/src/sys/arch/i386/
  compile/GENERIC i386

enable the CPU to run at full speed, or is it switched to half speed?

Regards,
	-is

cpu0: "Intel(R) Pentium(R) 4 CPU 3.20GHz"
cpu0: unknown Enhanced SpeedStep CPU
cpu0: Intel (686-class), 3200.22 MHz, id 0xf43
cpu0: Enhanced SpeedStep running at 1600 MHz (1420 mV)

> ./flops=20

   FLOPS C Program (Double Precision), V2.0 18 Dec 1992

   Module     Error        RunTime      MFLOPS
                            (usec)
     1      4.0146e-13      0.0135   1038.5844
     2     -1.4166e-13      0.0117    600.2652
     3      4.7184e-14      0.0207    823.1180
     4     -1.2557e-13      0.0154    976.7351
     5     -1.3800e-13      0.0282   1029.1342
     6      3.2380e-13      0.0272   1064.6282
     7     -8.4583e-11      0.0379    316.8278
     8      3.4867e-13      0.0286   1047.1400

   Iterations      =3D  512000000
   NullTime (usec) =3D     0.0006
   MFLOPS(1)       =3D   658.5552
   MFLOPS(2)       =3D   592.7987
   MFLOPS(3)       =3D   851.6404
   MFLOPS(4)       =3D   990.2123