passing a 2d-array to a function in c language, what is the difference between int* b[4] and int b[][4]?
I am trying to shift the rows of a 2-dimensional array: #include
Tag: memory
Will there be serious performance degradation when using multiple threads to write to memory concurrently on Linux?
I wrote a multi-thread today. The task of the thread is to write data to a large array. A single thread takes about 0.7s, but it takes more than 20 seconds to write independently and concurrently with …
How does OS kernel get notified when memory is accessed?
As far as I know, OS kernel maintains the translation from virtual address to physical address, and the userspace program uses virtual address, the CPU uses physical address. Since all machine codes …
8GB of ram working normally with 7.9 usable, then one day only 7.4 were usable, what happened?
I had a laptop with 4GB of ram, putted another 4GB for 8GB the laptop was saying 7.9GB usable, pretty normal and expected. One day when I turned it on (4 to 6 months later), only 7.4 were usable. Did …
What would be a good algorithm for patching binary files on linux
I am trying to reduce data transfer to my embedded linux device by creating patches for almost similar binaries. I have memory constraints on my device and hence heavy algorithms like bsdiff and …
How to pair matrices that are approximately the same in another numpy array
Background I have the following code that works like a charm and is used to make pairs for a Siamese network: def make_pairs(images, labels): # initialize two empty lists to hold the (image, image) …
Dynamically allocating memory to an array and reading a large text file
I’ve had a look at some other similar questions and examples but I’m stumped. My goal is to open a very large text file (novel sized), allocate memory to an array, and then store the text into that …
How is default page-file size actually calculated by Windows?
I want to know how does Windows calculate default page file size. For example, for 48 GB RAM it shows 7168 MB page file size.
For memory, what should be done when you need to constantly grow a vector to an unknown upper limit?
Suppose that you are dealing with a potentially infinite amount of data. Suppose further that you do not have this data stored in memory, but can generate individual terms at will. Finally, suppose …
Page faults not available in process explorer
In this answer (sencond part/process explorer): https://superuser.com/a/1270689/1160187 it’s suggested that page faults can be viewed per process in process explorer. But in my case, I don’t have …