Questions tagged [io]
IO or I/O is a common shorthand for referring to Input and Output
266
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Trying to write to /sys/class/gpio/export – write error: Invalid argument
I have an Intel aaeon upboard and I want to use its GPIO pins. To do that I'm trying the below code:
echo 17 > /sys/class/gpio/export
But when I run it, this is what I get:
-bash: echo: write ...
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4
votes
1
answer
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Where do Docker containers and Kubernetes pods write to disk in absence of a volume?
General question about the internals of Docker and containers running in Kubernetes when using the Docker engine.
Docker containers are ephemeral, meaning that if a container is destroyed, any data ...
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0
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0
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Unable to mount DVD - unable to read superblock
I bought a Documentary DVD online, but when I inserted the DVD into a Windows machine, nothing happened. So, I tried with Ubuntu, and same thing happened.
When I checked dmesg after I inserted the ...
- 1
0
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1
answer
308
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Does 'Write cliff' phenomenon only happen to SSD disks?
First of all, I am new to disks, I just know the basics. I am trying to improve performance of a software with heavy I/O and I need to understand how my SAS disks work in terms of read and write speed....
- 3
0
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1
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CPU Burst or I/O Burst
If a process that currently is being executed faces an I/O Burst, will the next available process gain the CPU burst or will the processor wait until the I/O Burst of the first process finishes to ...
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2
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What's the use of providing number of partitions when partitioning a hard disk?
I'm trying to partition my hard disk to make it usable. I'm following the steps given in this link to partition my hard disk. I'm doing this by providing the number of partitions as 1 and choosing the ...
- 113
2
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0
answers
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IOException - Leiningen REPL crashing while typing
I'm coding in Clojure and have been using Lein's REPL thoroughly. But recently it's been crashing while I'm typing, especially while opening or closing maps or parenthesis, with the following error ...
- 121
0
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1
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How to save output of python-swiftclient to file when dowloading a directory?
When I download files from a cloud with python-swiftclient sometimes I get errors like this one:
Error downloading object 'uploads/1/image.png': Object GET failed: https://orbit.brightbox.com/v1/...
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1
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0
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What prevents my RT thread from working?
I have some data acquisition application running under Linux 2.6.37 on DM8148 with TI Linux. I have two threads:
thread named IDE, scheduled as SCHED_RR, prio 114 (75), which collects data from HW ...
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3
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1
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853
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The request could not be performed because of an I/O device error
A few weeks ago something bad happened to my OS (Windows 10). In my laptop I have SSD with OS and HDD for data (cd drive slot).
I usually hibernate my PC instead of shutting it down. I also have a bad ...
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1
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iostat + how to solve latency on disks
we use iostat -x and check for the await column - per device it shows the total time spent waiting plus the actual handling of the request by the disk
iostat -yzx 5
Device: rrqm/s wrqm/s ...
- 871
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1
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Can Operating Systems handle shift, ctrl and alt key signals separate from the keyboard?
The basic problem is this: I have a mini keyboard I'm using for a Raspberry Pi project, and since there is only one shift, ctrl and alt key apiece, that means combinations on the left side of the ...
- 137
0
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1
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Disk write issue but no error detected
I'm using a 3TB western digital red disk on my desktop pc (windows 10) and smart info says it's been powered on for nearly 1000 days,
I never had any issue with it before but now I'm having some ...
- 1
0
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0
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Why firefox behaves so weirdly/annoying?
Occasionally FF starts very heavy activities, performing huge amounts of I/O (On my HDD) and considerable CPU usage for a long time (More than 10 minutes is really normal for it) that there is no ...
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-1
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1
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Which filesystems reuse unchanged data blocks on write?
Let's say I open and read an existing file of N blocks where N > 1.
Then I change data which resides within the boundaries of one - 1 - block.
On writing back the actual data, presumably one of ...
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