hi,
Changing HZ value if you have any great idea,
otherwise it will unneceessarily overhead the
system
and moreover your system will start performing badly,
and need static compilation of kernel,
what i might suggest is to change the timer0 count
with your count
this will be easy as if any worst goes you will
restart the computer or unload the module,if the
system is that much good behaving,
HZ is dividing valua to that counter for e.g
#define HZ 100 will give you counter
of 1193180/100=11931 so load it and reset to original
value using following 2 functions
void set_pit_count(int counter)
{
cli();
outb(0x36,0x43);
outb((char)(counter & 0xff),0x40);
outb((char)(counter >> 8),0x40);
sti();
}
int get_pit_count(void)
{
long ntsc=1193180;
return ntsc/HZ;
}
from loadable kernel module
i think this will be ok
I might be made some mistake forgive me
thanks
Prasanna
--- Zeeshan Ali <zeelists@yahoo.com> wrote:
> Hello,
> Firsr of all, I'll really appreciate if someone
> answers my last email. Secondly, What do i need to
> do
> to get a higher clock(tick)-rate? just change the
> value of HZ in asm/param.h and compile the kernel?
> In
> simple words: does changing value of HZ in the
> #define
> really change the value of HZ?
>
> =====
>
---------------------------------------------------------
> "To teach how to live without certainty, and yet
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> the chief thing that philosophy, in our age, can
> still do for those who study it." --Bertrand Russell
>
> "According to all the rules (of Software
> Engineering) I knew, Linux should have been a
> disaster, but it was'nt. Instead it was something
> wonderfull" -- Eric Raymond
>
>
>
>
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