First, it’s platform dependent. In some architectures, stack is allocated from the bottom of the address space and grows upwards. Assuming an architecture like x86 that stack grown downwards from the top of address space, the idea is pretty simple: =============== Highest Address (e.g. 0xFFFF) | | | STACK | | | |————-| <- Stack … Read more
I think you can read this document. Is provides you three small C programs that you can use to understand what happens with the different possible values of /proc/sys/vm/overcommit_memory .
When you use a language with garbage collection you wont get access to the memory directly. Rather you are given access to some abstraction on top of that data. One of the things that is properly abstracted away is the the actual location in memory of the data block, as well as pointers to other … Read more
You just need to defer your destination creation in your builder, and the @ViewBuilder is a good instrument for this. It can be used the following wrapper for to create real destination only in when body will be rendered (ie. explicitly in time of navigation clicked in your case) Tested with Xcode 11.4 / iOS … Read more
There isn’t much overhead for malloc, so you are unlikely to achieve any run-time savings. There is, however, a good reason to implement an allocator on top of malloc, and that is to be able to trace memory leaks. For example, you can free all memory allocated by the program when it exits, and then … Read more
This is the list of facts I collected. Instead of GC the term memory (de)allocation seems to be more appropriate in this context. My principal information source is the blog of Loren (especially its comments) and this article from MATLAB Digest. Because of its orientation for numeric computing with possible large data sets, MATLAB does … Read more
This has been a big concern for some using Node.js, and there are good news. The new memory limit for V8 is now unknown (not tested) for 64bit and raised to as much as 32bit address space allows in 32bit environments. Read more here: http://code.google.com/p/v8/issues/detail?id=847
Memory level warnings are logged by SpringBoard. As an app developer you don’t need to care about it. Just responding to -{application}didReceiveMemoryWarning is enough. There are 4 levels of warnings (0 to 3). These are set from the kernel memory watcher, and can be obtained by the not-so-public function OSMemoryNotificationCurrentLevel(). typedef enum { OSMemoryNotificationLevelAny = … Read more
After extensive debugging i finely isolated the problem. Memory management of bds2006 Turbo C++ became corrupt after you try to call any delete for already deleted pointer. for example: BYTE *dat=new BYTE[10],*tmp=dat; delete[] dat; delete[] tmp; After this is memory management not reliable. (‘new’ can allocate already allocated space) Of course deletion of the same … Read more