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-2 votes
1 answer
411 views

Do Operating Systems need to know which is the hardware architecture on which they are executing?

Maybe this is a basic theoric question, but I have no idea of the answer and haven't found information of this. Do Operating Systems (imagine Windows or Linux distros) need to know if they are ...
isma's user avatar
  • 1
1 vote
1 answer
1k views

Virtualbox on high resolution monitor using all CPU even when idle

I have a Windows 10 laptop, where I need to run a Linux 16.04 inside Oracle VirtualBox. The issue is that the resolution of my laptop is 3000x1500 and having such a high resolution is causing my Linux ...
pir's user avatar
  • 301
0 votes
1 answer
173 views

Does the chipset also determines installablility of 32bit OS or 64bit OS?

I have Fujitsu Lifebook A6025 with Pentium T2130 and Intel® 945GM/ ICH7-M chipset according to the spec. I want to upgrade the CPU to Intel Core 2 Duo Mobile T7400(Socket M) CPU. The T2130 CPU ...
user1026669's user avatar
1 vote
1 answer
244 views

Processors and virtual/physical addresses

In nutshell, as I understand memory management, processor produces virtual addresses. These addresses are translated to corresponding physical addresses using per-process address table by MMU (with ...
Subhajit Kundu's user avatar
1 vote
0 answers
54 views

How can cpu-intensive processes slow down a system despite having a scheduler?

I've encountered it on both Windows and Linux that if some process is doing some heavy work and the cpu is under a lot of stress, the whole system can sort of freeze, other processes get slow, etc. ...
MasterMastic's user avatar
5 votes
3 answers
25k views

Is having more CPU cores a better thing for running a web server?

I was reading about how User threads are mapped to kernel threads on Wikipedia. From this article I understand that FreeBSD uses the 1:1 (Kernel-level threading). So each User thread created by the ...
Songo's user avatar
  • 151
0 votes
0 answers
43 views

32-bit or 64-bit OS? [duplicate]

Possible Duplicate: 32-bit vs. 64-bit systems I just built a new box which has an i7 3820 running as CPU. I usually run linux distros on my boxes. Is it best to go with a 64-bit distro with ...
ironicaldiction's user avatar
2 votes
3 answers
3k views

Is my laptop processor 64bit?

I have a Lenovo Ideapad Y510. I have always used 32bit OS in it. Yesterday I came across this detail of my laptop and it says processor of my laptop is 64bit (hope I have not misinterpret anything) so ...
Sandy's user avatar
  • 4,979
0 votes
1 answer
774 views

Testing an embedded device processor [closed]

I am writing some tests to test the processor on an embedded device (running on Linux). The device shell supports Ash, python and I can even run C code after compilation in scratchbox. Can you give ...
Ankur Agarwal's user avatar
6 votes
3 answers
3k views

Kernel and User mode distinguishing

Who is responsible for determining that the process is in the Kernel mode or User mode? I know kernel knows which process is belong to what space, but how the CPU determines that? I mean should CPU be ...
Kamran's user avatar
  • 289