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c++ Programming Glossary: contentionWin32 Read/Write Lock Using Only Critical Sections http://stackoverflow.com/questions/1008726/win32-read-write-lock-using-only-critical-sections use a spin lock and fall back to a mutex whenever there is contention. The critical section is itself implemented this way. I would..
How to profile pthread mutex in linux? http://stackoverflow.com/questions/10852637/how-to-profile-pthread-mutex-in-linux to profile a pthread mutex to see if there are any locking contention points in my code. who likes contentious code right I know how.. that would provide metrics stats about mutex locking contentions to see if I have any problem areas. Here's some background.. values compared to the rest and I focused on reducing the contention for those. I know this is probably quite easy for spinlocks..
http://stackoverflow.com/questions/1277627/overhead-of-pthread-mutexes just a couple of machine instructions only when there is contention the library has to call into the kernel. Another point to consider..
Problems with Singleton Pattern http://stackoverflow.com/questions/1392315/problems-with-singleton-pattern in a multithreaded setup having all the threads being in contention for the singleton instance would be a bottleneck. But how does..
What happens when QueryPerformanceCounter is called? http://stackoverflow.com/questions/1723629/what-happens-when-queryperformancecounter-is-called that it can invoke a bus transfer so you may be seeing bus contention delays. Try using SetThreadAffinityMask if possible to bind..
http://stackoverflow.com/questions/1898374/does-the-jvm-create-a-mutex-for-every-object-in-order-to-implement-the-synchron object is never locked or if it is locked but there is no contention it stays that way. If and when contention occurs on a locked.. but there is no contention it stays that way. If and when contention occurs on a locked object the JVM inflates the lock into a full..
http://stackoverflow.com/questions/195853/spinlock-versus-semaphore waiting thread is running . Therefore given any amount of contention acquiring the lock takes around 1 1 2 time slices in the best..
How to profile multi-threaded C++ application on Linux? http://stackoverflow.com/questions/2497211/how-to-profile-multi-threaded-c-application-on-linux applications as long as you don't want to profile mutex contention which is a very important part of profiling multithreaded applications..
Scalable memory allocator experiences http://stackoverflow.com/questions/2514278/scalable-memory-allocator-experiences replacement for default malloc new because of significant contention seen in multithreaded environment. Their published performance..
Is this a bug in the Intel C++ Compiler at optimization level 2? http://stackoverflow.com/questions/3527829/is-this-a-bug-in-the-intel-c-compiler-at-optimization-level-2 . In the C language it is actually an outstanding bone of contention as to whether an infinite loop is allowed to be optimised away..
Is 'volatile' needed in this multi-threaded C++ code? http://stackoverflow.com/questions/3612505/is-volatile-needed-in-this-multi-threaded-c-code are often extremely lightweight and in a case of no contention will probably be all implemented userside. They will also contain..
C++ volatile required when spinning on boost::shared_ptr operator bool()? [duplicate] http://stackoverflow.com/questions/4662482/c-volatile-required-when-spinning-on-boostshared-ptr-operator-bool about this. It'll be fine. If you're worried about lock contention use barriers or futures which don't have a big shared lock to..
Multithreaded job queue manager http://stackoverflow.com/questions/565137/multithreaded-job-queue-manager list Visual Studio comes with one . Avoid using a mutex contention for the queue is surprisingly high and grabbing mutexes is costly... job back into the main heap where you'll have to deal with contention between jobs and locks and all that other slow annoying stuff...
How to use std::atomic efficiently http://stackoverflow.com/questions/8749038/how-to-use-stdatomic-efficiently If the overhead of a mutex lock is significant due to contention then you might need to rethink your data access patterns cache..
multithreading on dual core machine? http://stackoverflow.com/questions/8809752/multithreading-on-dual-core-machine
C++: optimizing member variable order? http://stackoverflow.com/questions/892767/c-optimizing-member-variable-order good news all around at least where you don't have heavy contention. The size of an object depends on the fields in it and on any..
In C++ is “const” after type ID acceptable? http://stackoverflow.com/questions/988069/in-c-is-const-after-type-id-acceptable a constant pointer to int would clearly be int const i My contention is that if someone just learns it his way they'll have little..
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