IO or I/O is a common shorthand for referring to Input and Output

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How to change I/O priority of a process or thread in Win7?

Process Explorer is able to show the effective IO priority of a given thread, but not change it. Seeing as IO priority support is a comparatively new feature, most programs don't set their own IO ...
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2answers
5k views

Linux: Is there something similar to “top” for I/O?

My disk often is utilized, but top (and htop, a custom replacement) show nothing suspicious. Is there a way to sort processes by I/O (more specific: disk) utilization? EDIT Found out using iotop ...
25
votes
4answers
15k views

How do I find out what processes are accessing the hard disk in a GNU/Linux-based system?

I'm looking for the equivalent to top for disk access, so I can tell which process(es) are currently reading and/or writing to disk. I'm currently using Ubuntu, but I imagine there's a standard tool ...
7
votes
7answers
2k views

What's making my disk thrash in Windows XP?

I have a sick Windows XP laptop; something's making the disk thrash and the entire system is sluggish to unresponsive a few minutes after boot. How do I figure out what is making the disk thrash? Task ...
3
votes
2answers
415 views

When a disk read or disk write occurs, where does the data go?

I understand that there is such a thing as a disk controller which contains a buffer, but was wondering if the CPU reads directly from this buffer, or whether the data must first go to a specific ...
3
votes
1answer
795 views

Is it bad if millions of files are stored in one NTFS folder?

I have a very large NTFS volume with more than 20TB capacity and containing millions of files. If I put all of the files in the same folder, I know the performance is bad when I open the folder in ...
1
vote
4answers
134 views

How can RAM contain a “memory map” if RAM is unaware of the overall system?

This question concerns hardware more than software. Basically, citing from this article on memory maps, it says that: In computer science, a memory map is a structure of data (which usually ...
0
votes
1answer
85 views

Windows are unresponsive for a few seconds after boot (probably IO error with HDD)

When Windows is loaded and I am logged in into my desktop, the system gets unresponsive for about 10-15 seconds. During this time, the HDD led indicator at the case is either flashing or on (solid). ...
0
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1answer
770 views

CPU I/O communication

I know there is this question already discussed, but I still donĀ“t understand something, so please just help me clarify it. What I understand there is 2 way to do I/O aka communicate from CPU with ...