Nice value and thread priority

Jul 18, 2005 2 Replies
V

Hello



I am trying to understand the scheduling in Linux.


From one of the topics in this list

formatting link


Here it mentions that for the threads with policy SCHED_OTHER have soft priority over the 'nice' range of -20 to +19 (static priority of


100-139) But when I see the process details with "top -b- n 1" command the priorities of the tasks shown are all in 10 to 30 value range and the nice valuesare -20 to 19

Can anybody please explain me the relationship between the nice value and the priority needed for thread scheduling in real time.


Thanx Vinay



Vote
Twitter Facebook LinkedIn
V

Hello

I am trying to understand the scheduling in Linux.

formatting link

Here it mentions that for the threads with policy SCHED_OTHER have soft priority over the 'nice' range of -20 to +19 (static priority of

100-139) But when I see the process details with "top -b- n 1" command the priorities of the tasks shown are all in 10 to 30 value range and the nice valuesare -20 to 19

Can anybody please explain me the relationship between the nice value and the priority needed for thread scheduling in real time.

Thanx Vinay

Vote
Twitter Facebook LinkedIn
V

Hello

I am trying to understand the scheduling in Linux.

formatting link
group/linux.kernel/browse_frm/ thread/c2...

Here it mentions that for the threads with policy SCHED_OTHER have soft priority over the 'nice' range of -20 to +19 (static priority of

100-139) But when I see the process details with "top -b- n 1" command the priorities of the tasks shown are all in 10 to 30 value range and the nice valuesare -20 to 19

Can anybody please explain me the relationship between the nice value and the priority needed for thread scheduling in real time.

Thanx Vinay

Vote
Twitter Facebook LinkedIn

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required