RE: Real-Time thread scheduling in linux??

[Perez-Gonzalez, Inaky]

> From: Harish K Harshan
>
>      I would like to know if there is any way to give a thread real-time
> priority under Linux, and also if it is possible using the pthread
> library. How would the kernel handle such threads? And do we need to
> implement locking systems, so that this thread does not block other
> threads permanently? Please help me, because I am working on a data
> acquisition application, and the acquisition thread needs almost
> real-time priority, and loss of data is not affordable.

This is a user space POSIX API issue. You need to use pthread_setscheduler(),
on a recent glibc. The kernel doesn't handle threads or processes 
differently, so the whole process will not block if one of the
threads does.

[this is all assuming you are using a glibc with NPTL as threading
library, as most Linux distros should have now].

Iñaky Pérez-González -- Not speaking for Intel -- all opinions are my own (and my fault)
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