Re: Hard real time in user space with preempt_rt patch

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

 



On 04/24/2012 01:46 AM, Anisha Kaul wrote:
From: https://rt.wiki.kernel.org/articles/f/r/e/Frequently_Asked_Questions_7407.html

Real-time only has impact on the kernel; Userspace does not notice the difference except for better real time behavior.

Does it mean that if we write the applications in user space, they
won't get the hard real time effect?
The threads running in the userspace won't get the hard real time effect?


You use the term "hard real time". The RT patch set does not even come close to providing a "hard real time" environment, and isn't even attempting to. It does however provide user land applications a much better chance for a "soft real time" environment. The phrase you quot above just means the patches are applied to the kernel and there are no patches required for user land glibc or your application.

Regards
Mark
--
To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [RT Stable]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Samba]     [Video 4 Linux]     [Device Mapper]

  Powered by Linux