Questions tagged [io]
IO or I/O is a common shorthand for referring to Input and Output
266
questions
0
votes
0
answers
16
views
Enable GPIO sysfs interface on Yocto Mickledore Linux Kernel
I'm trying to get my application to run on a new Yocto Mickledore Image I created. My application is failing to interface to the GPIO's and upon some research I found it is because GPIO sysfs ...
- 117
0
votes
2
answers
308
views
Cannot repair a disk with corrupted GPT using gdisk
I have a disk that was forcefully closed when it was working in a disk operation (when downloading files to it). Now, the GPT is corrupted and I cannot mount it correctly. I am trying to mount it ...
- 103
0
votes
1
answer
28
views
Temporarily disabling hardware IO ports for remote connection
I'm using moonlight with sunshine to stream my desktop to my mobile devices for remote access.
Is there a way for a script to toggle the all IO ports, except the ethernet, on and off to prevent direct ...
-2
votes
2
answers
99
views
Can ionice reduce wear and tear on hard disks?
Without knowing how ionice works functionally, I was wondering if ionice more smartly batches disk I/O operations for more efficient physical movement (spinning disks specifically).
I run a lot of ...
- 1,468
0
votes
1
answer
554
views
How can I view the max wattage of my usbcpd port of my laptop?
I have a Lenovo laptop with one of the USB C 3.2 gen 2 ports labeled as USB-PD, and I'm wondering what it is rated for. Based on some Googling it seems that USB 3.1 PD ports support up to 240 watts, ...
2
votes
0
answers
91
views
Continuously writing multiple files: sequential write or random write I/O?
I am trying to choose an SD card to get the best I/O performance for an application which basically does this:
Writes a 4K 30FPS video stream
Writes a VGA video stream
Writes multiple log files of ...
- 21
0
votes
1
answer
266
views
Extremely slow json.load of a network response in WSL
Decoding a json response takes a lot of time on my system - Precision 5520 (11th gen I7, 64 GB) with Linux 20.04 LTS under WSL2 under Windows 10 Pro. Here is the relevant part of the code:
def ms_now()...
1
vote
0
answers
42
views
btt in blktrace tool does not report any data in android
I have collected trace data in file parse.bin with blktrace in android.
Then I use btt to parse the cellocted data as below:
/ssd/blktrace/btt/btt -i parse.bin
But it does not report any data. The ...
- 11
0
votes
2
answers
300
views
Check that every file is successfully readable on a volume
For the first time since many years, I have a disk (SSD that shows 99% health with DiskInfo!) that has a few unreadable files. I tried to open these files with wxHexEditor, and when scrolling in the ...
- 1,916
1
vote
0
answers
341
views
ZFS I/O Error, Kernel Panic during import
I'm running a raidz1-0 (RAID5) setup with 4 data 2TB SSDs.
During midnight, somehow 2 of my data disks experience some I/O error (from /var/log/messages).
When I investigated in the morning, the zpool ...
0
votes
1
answer
2k
views
Can switching off computer’s power supply while it’s running damage the I/O?
Working on a HTPC build, and we accidentally switched off the PSU while it was running. Motherboard still runs and fans work, but video output and USB devices are no longer responding. Did we fry the ...
- 13
0
votes
0
answers
195
views
Bad disk write performance & high PSI
I'm currently running into an issue where writing files is causing insanely high pressure on the I/O side:
It goes so far that the system even stalls for a few seconds then writes a bit, stalls again,...
- 1
2
votes
1
answer
1k
views
How to get the current IO utilization in percentage from the command line on Windows 10?
I already know how to get the CPU usage percentage:
wmic cpu get loadpercentage
That returns:
LoadPercentage
21
But what about the IO? Meaning the total disk utilization in percentage, or one per ...
- 21
0
votes
1
answer
854
views
Signals vs. polling for I/O (uses very simple example of I/O)
I understand how hardware interrupts work. I have a basic question about I/O, and will use keyboard and characters from key presses as the context for the question.
In a general sense, do processes ...
- 101
0
votes
1
answer
445
views
Where is hardware buffer often located for USB ports?
This is a pretty broad question. The hardware buffer for USB ports, where is it typically located? I have heard they are typically in the USB controller. I attach what looks like a generic image to me ...
- 101
0
votes
1
answer
2k
views
Is there some way to make a foobar2000 playlist automatically track and update its file paths?
I have a lot of poorly named music files. They are poorly named because when they were digitized or converted, there either was no metadata at all, or it was incomplete/inconsistent, etc.
Manually ...
- 9
-2
votes
1
answer
106
views
CPU and its operations
The 3 operations performed by a CPU are:
Transfer of data between memory and I/O
Logical and Arithmetical functions
Program flow through simple decisions
I dont understand what the 3rd operation is ...
- 107
0
votes
1
answer
57
views
How is it possible for a process to read 300+ I/O TB?
Take a look at how much I/O this process done! KillerAnalyticsService is, apparently, program made by the manufacturer of network card installed in PC. Can somebody explain how so much bytes was read?
...
0
votes
1
answer
388
views
Is JBOD or striping better for lots of small files?
I have a server in multi-disk configuration using LVM-on-LUKS in JBOD mode. But I notice in htop that the kernel time in CPU usage is (un)usually very high, and in iotop the jbd2/dm-5-8 and ...
- 28.4k
5
votes
1
answer
273
views
Do writes and reads contend with each other for an SSD? [closed]
I have a disk I/O intensive application where I am reading and writing a lot concurrently.
For a spinning disk, it makes sense that there is contention because the pointer has to move around a lot but ...
- 153
0
votes
1
answer
400
views
pipe-lining using wget or curl on linux
I would like to know how can I download a file from the internet using wget and/or curl by separating the file into even segments and downloading the file using 8 or 16 direct links, substantially ...
- 115
1
vote
2
answers
5k
views
Settings for com ports to speed device I/O data transfers
I used to be able to go to com port settings for device I/O on windows and change settings such as baud rate for computer between internal PC hardware. I'm looking for instructions to do the same ...
- 431
0
votes
0
answers
142
views
Stop disk activity of a process without killing the process
Is there a technique or tool that can be used to stop a running process from writing to a drive, but not kill the process.
If I have more level of control in that, like selecting which drives the ...
- 105
4
votes
0
answers
211
views
Any way to tweak Windows' kernels or drives to handle I/O and reduce or eliminate hangs with failing drives?
I frequently work with failing hard drives for data recovery and various tasks. These tasks are usually short lived in nature, but important. The way Windows seems to handle any failing drive that's ...
- 1,231
4
votes
2
answers
2k
views
See exactly which files each program accesses
You can easily observe that a program is performing I/O disk operations using a process monitor. Is there an easy way to observe exactly what files are being read/written to by each process?
Windows/...
- 2,428
0
votes
1
answer
288
views
Disk writes in Mac OS Mojave (10.14.6)
Good day everyone!
I am trying to dissect MacOS to remove functions I do not need such as Siri, Spotlight, Sidecar stuff, etc.
Mainly, I follow https://gist.github.com/pwnsdx and similar resources all ...
- 1
0
votes
2
answers
74
views
What kind of disk operation is not read or write?
When reading a performance chart like this, what does the Other IO/Sec mean? What kind of operation is not read or write?
The info button only leads to a doc with this vague description:
NFS Write – ...
- 381
0
votes
1
answer
185
views
Alert when a partition is read/written
My hard disk sometimes makes unexpected noise, indicating activity. By eyeballing iotop I believe this process is responsible:
mount.ntfs /dev/sda2 /storage -o rw,umask=007,gid=46
however the ...
- 2,228
0
votes
1
answer
156
views
How can one see how much total reads and writes (in bytes) a given file has received cumulatively since Windows started?
I started Microsoft Windows a few hours ago. I would like to see how much total reads and writes (in bytes) a given file has received cumulatively since Windows started. Windows Results Monitor doesn'...
- 21.8k
1
vote
0
answers
48
views
How to prevent Windows 10 and/or my computer from going completely crippled while utilizing file copying over USB?
I have a monster PC running Windows 10. There are zero known hardware issues, and it's managed by me, a poweruser. There are no weird things slowing it down. It runs at expected speed normally.
It is ...
- 11