Re: Default HZ value for X86

[Artur Skawina]

Alan Cox wrote:
> On Mon, 27 Apr 2009 16:07:10 -0700
> Alok Kataria <akataria@xxxxxxxxxx> wrote:
>>
>> I was wondering why do we still have the default HZ value as 1000 for
>> the x86 kernels.
>>
>> arch/x86/configs/i386_defconfig:CONFIG_HZ=1000
>> arch/x86/configs/x86_64_defconfig:CONFIG_HZ=1000
>>
>> With the highres timer implementation it was planned to move away from
>> relying on high timer interrupt frequency for applications requiring
>> precise high resolution timers.
> 
> With the tickless kernel does this really matter any more ? We might as

It didn't matter much, until the kernel stopped actually being tickless.
These days, w/ ints on when nonidle, it probably does again...

> well keep a logical 1000 for convenience and accuracy.

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