All Questions
4
questions
7
votes
3
answers
7k
views
What does "address space" means when talking about IO devices?
The following quote is from this page:
While some CPU manufacturers implement a single address space in their
chips, others decided that peripheral devices are different from
memory and, ...
- 2,039
2
votes
1
answer
273
views
What does "data bus control" mean?
This video mentions the following:
What does it mean for the DMA controller to be granted the data bus control, does that mean the CPU cannot use the bus to access memory and IO devices until the DMA ...
- 2,039
9
votes
2
answers
9k
views
Separate Thread Pools for I/O and CPU Tasks
I've been puzzling over a good implementation for this for a while. I have a program that does a long-running I/O operation (downloading a file) and a long-running CPU operation (parsing its contents)...
- 219
31
votes
6
answers
26k
views
Why do we have to wait for I/O?
It's always been known that Disk operations are slow and we know the reasons why they are slow.
So the question here is why do we have to wait for I/O or why is there such a thing as IOWait, etc.?
I ...
- 571