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Questions tagged [kernel]

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38 questions
Newest Active Bountied Unanswered
2 votes
4 answers
166 views

I'm developing a multithreaded game server (C/TCP). I need to send a list of 50-100 available games to a console client. Option A: Send 50-100 separate messages, using send() for every single ...
dok's user avatar
  • 313
1 vote
2 answers
892 views

I was reading some of the documentation for the linux kernel and I stumbled upon an article about adding new syscalls to the linux kernel. The article essentially says that any syscall in the linux ...
Danila Berezin's user avatar
  • 29
2 votes
0 answers
887 views

I'm currently trying to update the linux kernel used in a xilinx SoC, my company has an internal repo/fork of xilinx open source linux with a bunch of kernel drivers for our custom hardware & ...
Skye's user avatar
  • 29
0 votes
2 answers
417 views

I am filled with questions pertaining to the situations where a desktop-application hangs, possibly for minutes. I've got this complicated game-engine written in c++. Several times during development, ...
SilverRain's user avatar
  • 119
-1 votes
2 answers
955 views

I have been studying about OS and currently, I am on "types of the kernel". Now in the book and some websites are saying Monolithic kernel-based OS is faster, but how are they faster than ...
Abhinay Singh Negi's user avatar
  • 111
-2 votes
5 answers
994 views

Is an OS compiled every time it boots, or is it compiled once and the result used every time the OS is (re)booted? When users change settings, is the compiled kernel modified at all? If I am the one ...
Y.R's user avatar
  • 121
2 votes
1 answer
1k views

My question is more of educational than an actual coding problem. I tried searching the web, but got little help. I am trying to learn how to write ISR and understand how they interact with user ...
S_pt1132's user avatar
  • 41
2 votes
1 answer
101 views

For a system, I have certain requirements should be soft realtime. should be able to handle lots of operations in parallel should have ability to add, remove, alter features should be able to ...
Simple Fellow's user avatar
  • 385
2 votes
0 answers
368 views

I know that in x86_64, there exists a 128 byte red zone above (or below, address-wise) the stack pointer that functions can use without subtracting from rsp. This sounds to me like the only things ...
Ferdi265's user avatar
  • 129
1 vote
1 answer
141 views

I'm an amateur programmer. I have a lot of interest in the inner workings of operating systems, a subject that I've been reading a lot about. What I've understood about kernels is that on most ...
S. Rotos's user avatar
  • 121
3 votes
2 answers
461 views

Today, I searched for includeOS and I found that it defines itself as a minimal unikernel. I am wondering what is UniKernel. The wikipedia explanations are not clear enough to me. Is unikernel an ...
ar2015's user avatar
  • 138
2 votes
1 answer
2k views

When comparing the Windows, macOS, and Linux kernel to each other, do some make better use of hardware in terms of cache efficiently, page lookups, or power consumption? I noticed this after ...
Cole's user avatar
  • 145
-2 votes
1 answer
311 views

Suppose I want to create a portable OS, that needs a USB flash drive only to work. and i wrote my boatloader in the first sector to be loaded by the BIOS, from here on, what can I do to load my OS ...
HumbleUser's user avatar
  • 17
3 votes
2 answers
69 views

I am posting this here instead of on Stack Overflow because this is more conceptual. I am primarily thinking of this a Linux context, but this can be extended to other operating systems. When I didn'...
Melab's user avatar
  • 247
1 vote
1 answer
2k views

I want to write assembly program using windows syscall Interrupt number , so in order to use system call in assembly level using int of sys call, In windows are there kernel calls like posix ...
Y07's user avatar
  • 127

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