) First of all, I would say to you that I write this question from nothing because I have attempt to find good documentation but nothing stand out… So now, I ask my question here : What append when we squeeze a key ? I think this is complex but I hope you can help ..
First of all, I would say to you that I write this question from nothing because I have attempt to find good documentation but nothing stand out… What happens when we squeeze a key? I think this is complex but I hope you can help me. What I search to know : all (but especially ..
Here are chunks of my c++ code which show some strange behaviour. I am multiplying a matrix m[N][N] with a vector v[N] (both containing random values from 0-400) and writing the solution in r[N] Code one for (j = 0; j < N; j++) for (i = 0; i < N; i++) r[i] = r[i] ..
I am new to c++ programming and computer architecture. I am trying to learn branch prediction using ChampSim simulator.(https://github.com/ChampSim/ChampSim) However, I have no idea how to change the parameters in the program to do some simple simulations. For example, for the bimodal predictor in ChampSim, how can I change the size of prediction tables?How can ..
I know what is the benefits of Power Throttling in windows. But, what is this technology in more detail? Is it the same as DVFS technology? I mean how does the OS save power using the "Power Throttling" method? Source: Windows..
This question arises from reading of the popular memory barrier blog (https://preshing.com/20120710/memory-barriers-are-like-source-control-operations/). The below is pseudo code, not C++. I want to get clarification on the concepts mentioned in the blog, not an actual question on specific behavior of C++ or particular CPU. My understanding is the memory fence(barrier) only prevents the reordering of the ..
Below is the classical example of why neither func_3 or func_4 may print out (assuming each function runs on its own thread). However, I have yet to find an explanation that satisfies my curiosity for details. Assuming the following event order, If func_1 happens first (x.store), then func_3’s x.load will synchronize with thread 1 on ..
Until today I had understood that Windows only worked with ring 0 and 3 (it remain level ring 1 and 2 for compatibility). However, today I have heard that the drivers work at level 1 and 2, while the kernel at level 0. Could you please explain to me, please? Source: Windows..
For context, I’m developing a library for Arduino to transfer data packets over LoRa receivers. Question I’m having is, the library is placing the raw bits from floats and doubles into uint8_t arrays, sending them and then tranferring them back into floats and doubles. This of course works when the compiler, platform and architecture is ..
I am interested in modeling a system which has specific latencies for system calls, similar to how we can define latencies for cache accesses and reads. Is this possible to do, or will I need to do these by hand (after simulation ends)? For example, I’d like to simulate each system call taking 8,000 cycles ..