Interested to Buy Any Domain ? << Click Here >> for more details...
what are the Architectural differences between User-space
threads, and Kernel-supported threads.
- 1 Answers
- 7145 Views
- I also Faced
- E-Mail Answers
Answer / guest
User-space threads live without any support from the
kernel; they maintain all of their state in user space.
Since the kernel does not know about them, they cannot be
scheduled to run on multiple processors in parallel.
Kernel-supported threads fall into two classes.
In a "pure" kernel-supported system, the kernel is
responsible for scheduling all threads.
Systems in which the kernel cooperates with a user-level
library to do scheduling are known as two-level, or hybrid,
systems. Typically, the kernel schedules LWPs, and the user-
level library schedules threads onto LWPs.
Because of its performance problems (caused by the need to
cross the user/kernel protection boundary twice for every
thread context switch), the former class has fewer members
than does the latter (at least on Unix variants). Both
classes allow threads to be run across multiple processors
in parallel.
| Is This Answer Correct ? | 3 Yes | 0 No |
what are the Architectural differences between User-space threads, and Kernel-supported threads.
tell me similarities between thread and process
How to work unix commands on windows xp without installing unix o/s in pc?
Explain what is critical section?
What is the working set of a process?
If your server is running on Unix and one of the sessions are keep on running without loading any data. how would you kill it?
Explain what are the main families of threads?
What is Critical section?
what is Context switch?
Protection boundary??
Tell me when should we use thread-safe "_r" library calls?
how to edit the network interface device type in container(zone) in solaris 10?
Unix Commands 
