I am not sure about the do_gettimeofday_nolock() call regarding
resolution and space/time efficiency.
My suggestion would be, you could use the high resolution timers
available with the processor. If you are using MPC8xx or Pentium
class of processor, these high res timer registers are avilable.
You could read them to get nano-second precision.
Search in http://linux-mag.com/ article where one article which
gives the assembly snipets of using these registers and discusses
cost effectiveness of such code.
Hope this helps,
-Sas
[EMAIL PROTECTED] wrote:
>
> RTAI have do_gettimeofday_nolock which is a RT compatible variable of the kernel
>function do_gettimeofday, however, I have no idea how precise is it actually, I would
>suspect a resolution of about 10ms (linux tick). but I have no ideas of the actual
> precision.
>
> Laurent
>
> "Marc LE DOUARAIN" <[EMAIL PROTECTED]> on 06/05/2001 05:38:40 PM
>
> Please respond to [EMAIL PROTECTED]
>
>
>
> To: [EMAIL PROTECTED]
>
> cc: (bcc: Laurent KERSTEN/BE/ALCATEL)
>
>
>
> Subject: [rtl] Getting current day and time under RTLinux
>
>
> Hello Mailing-List !
>
> How can I get time (day, month, year + hour, min, sec) under a RTLinux thread?
> I know the classic functions under Linux : gmtime() , localtime() , time() ... but
>under RTLinux?
>
> Many thanks for help.
>
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