Re: Get UTC from RDTSC

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Sat, Jul 17, 2010 at 07:57, Radhesh Kamath <rmk.list@xxxxxxxxx> wrote:
> The CPU frequency is not varied, so a tick will represent the same
> amount of time.
> So the question is, how do I arrive at a UTC value?

Nice conclusion, but back again, how do you conclude current time if
you just use TSC ticks as the basis of determining current time? it's
like x+y=z..... y here is the TSC.... so if you insist *just* using
TSC, you just know y, but x and z itself is undetermined.

So, do you see the importance to look for another source? that "CMOS
clock" I said earlier perhaps?


-- 
regards,

Mulyadi Santosa
Freelance Linux trainer and consultant

blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com

--
To unsubscribe from this list: send an email with
"unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx
Please read the FAQ at http://kernelnewbies.org/FAQ



[Index of Archives]     [Newbies FAQ]     [Linux Kernel Mentors]     [Linux Kernel Development]     [IETF Annouce]     [Git]     [Networking]     [Security]     [Bugtraq]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux SCSI]     [Linux ACPI]
  Powered by Linux