The multithreading tag has no wiki summary.
2
votes
1answer
89 views
Speed up zgrep on a multi-core computer
I'm running zgrep on a computer with 16 CPUs, but it only takes one CPU to run the task.
Can I speed it up, perhaps utilize all 16 cores?
P.S The IO is just fine, I could just copy the gzipped file ...
1
vote
3answers
82 views
can the “cat” command use multi-processes
I need to merge bunch of files in a directory on a unix box that has 8 cores. I am looking for a fast way to merge these files. The cat command uses only one core... is there a way where I can make it ...
15
votes
6answers
1k views
Why using more threads makes it slower than using less threads
Tried to run program X using 8 threads and it was over in n minutes.
Tried to run same program using 50 threads and it was over in n*10 minutes.
Why does this happen and how can I get optimal ...
1
vote
2answers
81 views
Is any part of the X.org software multithreaded?
None of the command-line shells that I am aware of are multithreaded. In particular, even those shells that support "job control" (Control-Z, bg, fg, etc) do so via facilities (namely, fork, exec, ...
0
votes
1answer
54 views
When was the threading implemented in unix?
Which is the first Unix version or Linux version which implemented threads. And in which version bound and unbound threads were implemented? I know that in current Linux version threads are unbound by ...
1
vote
0answers
31 views
multithread handling in AM1808 using embedded Linux
I am using AM1808 ARM9 based board using GCC compiler (UBUNTU 10.04) .
I am using Sqlite3 database management.
I have some requirement regarding handling threads in background having access on ...
2
votes
0answers
90 views
So the design of client-server separation is not the bottleneck of X Window?
In the answer of this, it mentioned:
People also hear that X uses the "network" and think this is going to
be a performance bottleneck. "Network" here means local UNIX domain
socket, which has ...
1
vote
1answer
738 views
System sending SIGTERM and SIGKILL during normal work
I have a program (C++) that works with TCP sockets in multithreaded manner. The multithreading is intensive, about 100 threads (POSIX threads).
Sometimes, not quite sure when, the program gets ...
2
votes
1answer
161 views
What makes the Linux scheduler seem unpredictable?
The question refers to the output of a multi-threaded application, where each thread merely prints its ID (user assigned number) on the standard output. Here all threads have equal priority and ...
-3
votes
2answers
77 views
Which Linux distro/mode offers lowest interference when running your own applications?
I'm interested in a Linux distro to build C projects and test their behavior in a very predictable and controlled environment. I'm especially concerned about letting the scheduler deal as much as ...
2
votes
1answer
232 views
Does uClibc support using pthreads?
I recently attended an embedded Linux course that stated that uClibc does not support the use of pthreads and that it only supports linuxthreads. Furthermore, the course instructor implied that ...
3
votes
2answers
444 views
What is meant by stack in connection to a process?
From the book Advanced programming in the Unix environment I read the following line regarding threads in Unix like systems
All the threads within a process share the same address space, file
...
3
votes
2answers
2k views
Linux max threads count
my server has been running with Amazon Ec2 linux. I have a mongodb server inside. The mongodb server has been running under heavily load, and, unhappily , I've ran into a problem with it :/
As known, ...
0
votes
1answer
175 views
Analyzing the behavior of a threaded program
Is there an application that will do what Threadscope or the parallel tools of Visual Studio does for multithreaded program analysis in Linux?
3
votes
1answer
329 views
What is the need of the struct thread_info in locating struct task_struct?
While reading through the Linux Device Drivers, I could understand that the Process Descriptor (of type struct task_struct) has all the info regarding a particular task. The process descriptors are ...
