Questions tagged [io]
IO or I/O is a common shorthand for referring to Input and Output
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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 ...
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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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Pipe stdout of two programs to each other
I have two programs, one of them prints something first, they need to communicate with each other with their standard IO.
Is there a way in Bash to pipe stdout of two programs to each other? I know I ...
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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 ...
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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 ...
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Windows 8 extremely high disk usage and slow IO
Problem
After upgrading from Windows 7 to Windows 8 Professional, there seem to be a few disturbing problems.
When I have the Task Manager open, I sometimes notice the disk usage climbing to 50, 75,...
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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 ...
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How to limit disk usage (Write/I/O) by application? (NOT space usage)
I'm really annoyed by not being able to do a few jobs at a time even if I have plenty of RAM and CPU left to utilise - so it's the disk usage, for example when I am extracting big archives using ...
user144773
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Fail device in md RAID when ATA stops responding
I had created five 1TB HDD partitions (/dev/sda1, /dev/sdb1, /dev/sdc1, /dev/sde1, and /dev/sdf1) in a RAID 6 array called /dev/md0 using mdadm on Ubuntu 14.04 LTS Trusty Tahr.
The command sudo mdadm ...
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How can I retrieve data from a SD Card when photorec doesn't work?
A friend of mine took pictures of a Halloween party with his camera, and when he put the SD card in his computer, some of the pictures went missing. Knowing that I have successfully rescued his HD ...
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Are there any Pros/Cons to the /j Robocopy option (unbuffered copying)
Robocopy has a /J command line option recommended for copying large files (it copies using unbuffered I/O).
What (if any) downsides are there?
Any reason this isn't enabled by default? (That's what ...
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Difference between port mapped and memory mapped access?
Can anyone explain what's the difference between port mapping and memory mapping, and what having both accomplishes? Why is there port mapped, how does it differ in structure from memory maps, and is ...
user291288
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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 ...
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What is the purpose of frequent I/O operations on "/Device/Mup" on windows?
For example, from Process Monitor app:
There is very little web information about it suprisingly; not even about what "\device\mup" is.
edit:
Further information:
Command Line of process involved:
...
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linux: accessing thousands of files in hash of directories
I would like to know what is the most efficient way of concurrently accessing thousands of files of a similar size in a modern Linux cluster of computers.
I am carrying an indexing operation in each ...
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