Re: real-time process

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

 



>>>>> "Jan" == Jan Hudec <bulb@ucw.cz> writes:

Jan> On Thu, Oct 17, 2002 at 03:39:21PM +0300, Momchil Velikov wrote:
Nagaraj> for(  buff_index = i = 0; i < xfer_count; i++, buff_index =
Nagaraj> (buff_index+1)%MAX_BUFFERS ) {
>> 
Nagaraj> sleep(1000);
>> 
Nagaraj> read( buff_fd, (mbuff +buff_index*BUFF_SIZE), BUFF_SIZE );
>> 
Nagaraj> }
>> 
>> First, the above code has a race condition, which can add up to 1000 sec (!)
>> latency per frame!

Jan> Yes, there is. But first, it skips only to the next frame and

I wouldn't call 1000 seconds "only".

But, yes, not per frame, but per xfer_count frames.

~velco

--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive:       http://mail.nl.linux.org/kernelnewbies/
FAQ:           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