All Questions
5 questions
11
votes
1
answer
4k
views
What happens on pressing Ctrl-T in a terminal when a program is running?
When I press Ctrl+T while some program is running in a terminal, I get some extra output, e.g.:
$ ping -q -c 100 google.com
PING google.com (172.217.16.46): 56 data bytes
load: 2.39 cmd: ping 5374 ...
- 15.7k
15
votes
1
answer
9k
views
What are the relations between processes, kernel threads, lightweight processes and user threads in Unix? [closed]
Unix Internal by Vahalia have figures showing the relations between processes, kernel threads, lightweight processes, and user threads.
This book gives most attention to SVR4.2, and it also explores ...
- 106k
2
votes
1
answer
886
views
Why do I have 9 bash processes, why does one of them take up so much CPU and how do I stop them?
I have 9 different bash processes running at all times (I sometimes get more, for example, I have 37 bash processes now.). I found this question, where OP had a similar issue. But I don't see this as ...
- 12k
9
votes
3
answers
10k
views
Can I pipe any two processes to each other?
In this page from The Design and Implementation of the 4.4BSD Operating System, it is said that:
A major difference between pipes and sockets is that pipes require a
common parent process to set ...
- 956
5
votes
3
answers
2k
views
Why does a default Linux installation run more processes than a default OpenBSD installation?
If I ps -aux on Ubuntu (or any GNU/Linux distribution) without GUI I see ~100 processes running. If I ps -aux on OpenBSD without GUI, then I get ~10 processes.
What is the explanation/reason for ...
- 5,634