Pthreads Error 11
In order to keep proxying as responsive as possible, whenever main thread calls to a function that performs a futex wait, e.g. You should create a pool of threads (possibly with a user-configured size). –khachik Apr 12 '11 at 13:10 @Erik & khachik: Now I'm just wondering how to do that EINVAL Invalid settings in attr. But i want >to use only about 24 threads at a given time, and i destroy the >threads (or atleast i thought so) can someone tell me what i am doing
Nobody has 100-core processors, so the context-switching overhead will outweigh any benefit to parallelizing code to that degree. –Jonathan Grynspan Oct 11 '12 at 16:28 2 "...I think I'm closing There should be no other changes required. Why do I get multiple errors building basic code and the tests? Google for "How to Find PTHREAD_THREADS_MAX" if you really need to know. http://stackoverflow.com/questions/7038586/return-code-from-pthread-create-is-11
How To Find Pthread_threads_max
How do I translate "hate speech"? Coding Forums Forums > Archive > Archive > C Programming > Forums Forums Quick Links Search Forums Recent Posts Members Members Quick Links Notable Members Current Visitors Recent Activity New Profile I can easily start 30000 threads with a stack size of 8MB.
To learn more about security policy ,see http://linux.die.net/man/5/limits.conf. Pthread Error Handling How common is the usage of "yous" as a plural of "you"? How can my compiled program access files? page Why do I get an odd python error complaining about libcxx.bc or libcxxabi.bc?
Another thing to try is to find your stack size with pthread_attr_getstacksize and check that your limits allow you to malloc that many stacks. –Adrian Cox Apr 12 '11 at 14:13 Pthread_create Return On my system, errno.h says: > #define EDEADLK 11 /* Resource deadlock avoided */ > /* 11 was EAGAIN */ > > So, 11 once was EAGAIN, which is a known How do I use emsdk? After searching for a while, I had learnt pthread_detach() or pthread_join() is needed if you need thread resource to be reclaimed.
- Compiled for 32 bit, I can get a 100k stack to give me 30k threads.
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- asked 4 years ago viewed 6000 times active 4 years ago Blog Stack Overflow Podcast #92 - The Guerilla Guide to Interviewing Related 47Multiple arguments to function called by pthread_create()?162undefined reference
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- and 10.5.1 Nov 15: Thread creation using pthread_create() on Leopard Nov 13: Spaces..
- It turns out that they are no longer able to create new threads, despite having plenty of free memory and only a handful of other threads running.
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- It simply creates threads that die straight away.
- If a thread is joinable, then another thread can call pthread_join(3) to wait for the thread to terminate and fetch its exit status.
Pthread Error Handling
The new thread terminates in one of the following ways: * It calls pthread_exit(3), specifying an exit status value that is available to another thread in the same process that calls Then run the binary by typing ./pthread-test . How To Find Pthread_threads_max How can I tell when the page is fully loaded and it is safe to call compiled functions? Pthread Error Codes To String Like this:Like Loading...
Why don't cameras offer more than 3 colour channels? (Or do they?) Why do units (from physics) behave like numbers? How do I install a tool/SDK version? Why does compiling code that works on another machine gives me errors? What does the word "most" mean? Error Return Code From Pthread_create Is 11 Error Detail Resource Temporarily Unavailable
This is a work-in-progress research project, and the prototype specification can be located here. Sign up now! Why does my code break and gives odd errors when using -O2 --closure 1? Please try the request again.
Does the code terminate? Pthread_create Resource Temporarily Unavailable share|improve this answer answered Aug 12 '11 at 10:12 Christian.K 28.3k54774 Is there a function that will translate the error code for us (like into a message, a string, Thanks –Hosi Apr 15 '11 at 10:48 and my OS is 32bit. –Hosi Apr 15 '11 at 11:10 1 __synch comes from gcc atomic operations.
BUGS top In the obsolete LinuxThreads implementation, each of the threads in a process has a different process ID.
What if i need more than that? Please join our friendly community by clicking the button below - it only takes a few seconds and is totally free. The new thread starts execution by invoking start_routine(); arg is passed as the sole argument of start_routine(). Pthread_attr_setstacksize Note that the maximum number of threads that can be created depends on your system (and possibly even depends on a number of other settings).
vertigo, Aug 28, 2004, in forum: Java Replies: 4 Views: 1,125 Tor Iver Wilhelmsen Aug 29, 2004 Object Argument passing in pthread_create nightowl, Oct 21, 2004, in forum: C++ Replies: 1 Note that memory overcommit (/proc/sys/vm/overcommit_memory) must be allowed because otherwise system would need at least 240 GB of committable memory (sum of real memory and swap space). Welcome to the Coding Forums, the place to chat about anything related to programming and coding languages. Thanks before linux pthreads share|improve this question asked Apr 12 '11 at 12:43 Hosi 1702216 6 If you need more than 300 threads you really should rethink your design –Erik
What exactly does it mean for a scalar function to be Lorentz invariant? Why don't browser DNS caches mitigate DDOS attacks on DNS providers? Assuming you fix your program, you'll next find that you cannot create more than a hundred or so threads (depending on your system and available RAM). Advertisements Latest Threads Is this possible?
Try 16k. Of course, he can find out for sure by passing the return value from pthread_create() to strerror(). My system's man page says: The pthread_create() function will fail if: [EAGAIN] The system lacked the necessary resources to create another thread, or the system-imposed limit on the total number of Using pthread_attr_setstacksize(3), the stack size attribute can be explicitly set in the attr argument used to create a thread, in order to obtain a stack size other than the default.
Only when a terminated joinable thread has been joined are the last of its resources released back to the system. EPERM No permission to set the scheduling policy and parameters specified in attr. Browse other questions tagged linux pthreads or ask your own question. By default, it is very large; on my system, 8388608 bytes (8 megabytes).
Either pthread is ignoring my calls to pthread_attr_setstacksize() or getrlimit() is broken (it reports RLIM_INFINITY for rlim_cur and rlim_max), but I indeed do not get beyond 100 threads. –Rogier Mulder Oct