Questions tagged [performance]
Questions about software, hardware or network performance. Please use as a supplement for other, more specific tags.
160
questions
2
votes
0answers
46 views
What sort of throughput is achievabe over the USB 3.0 port on the Pi-4?
Looking to run a router application on the rPi-4, and was wondering if anyone has experience using usb 3.0 -> gigabit ethernet adapters on it - specifically what adapter/chipset worked with what ...
2
votes
1answer
32 views
Unusably slow performance on Model B Revision 2.0 using latest Raspbian kernel - advice?
I finally decided to try out a RBP that was given to me years ago. It's a Pi 1 Model B Revision 2.0 (PCB 2011.12). I installed and set up the latest Raspian kernel using NOOBS, no problem.
However, ...
3
votes
1answer
80 views
Cost-effectiveness of Pi cluster
Does it make sense to use Pi cluster for real computation?
My use case is to carry out intensive computation tasks 24/7. The tasks are pleasantly parallel, and there will be minimum inter-node ...
0
votes
0answers
31 views
will it Pi? headless home server(s)
I want to run the following:
Transmission
Sickrage
Plex (no transcoding)
Openvpn (client)
Now for the multiple choice section. Raise your hand to vote:
Each in a separate Docker container on a ...
2
votes
2answers
106 views
Would ZRAM be helpful for running OpenCV?
I'm doing some OpenCV development on a Raspberry Pi 3, and I have found some information about using ZRAM on the Pi to try and boost its processing effectiveness. I know this isn't actually adding ...
0
votes
1answer
377 views
Raspberry Pi 3 Model B+ vs Odroid C2 huge performance difference
So i benchmarked my Raspi 3 B+ and an Odroid C2 with sysbench by in single and multithread operation by using
sysbench --test=cpu --cpu-max-prime=20000 --num-threads=4 run
The results are kinda ...
0
votes
1answer
70 views
Strange performance problems
I've been trying out a raspi 3 as a desktop recently, and have run into strange performance problems, particularly when using chrome.
setup:
raspberry pi 3
running raspbian stretch
2.5A power supply
...
0
votes
0answers
62 views
“Performance” gorvernor doesn't change cpu frequency
When i tried to change the default governor of my Raspberry Pi 2 (currently at Powersave mode) to Performance mode which is expected to push my Pi's CPU freq up to its maximum number (900Mhz) by using ...
5
votes
0answers
310 views
Lxpanel using 100% CPU (1 core)
On my Raspbian 2018-11-13 installation with all updates (sudo apt-get update and sudo apt-get upgrade), I see the CPU graph in the task bar (top right corner) at constant 25%.
I opened a terminal and ...
0
votes
1answer
55 views
Is a Raspberry Pi 3 B+ “usable” enough for our coding/development, entertainment, gaming needs?
I'm planning on buying 2 units. One for myself for the purposes of learning web development, and one for my sister for entertainment purposes.
I know that the latest iteration of the device will ...
3
votes
0answers
740 views
Raspberry PI 3 - Browser, bad performance (Website with HTML5 canvas)
I have encountered a problem while developing a dashboard which is supposed to run on a Raspberry Pi 3. It is a combination of a HTML5 canvas as background to create visuals and some simple elements ...
0
votes
2answers
323 views
.NET CORE 2.1 app added to Linux(ARM) deamon cause CPU high
I'm using RaspberryPi (3B+) Linux ARM IOT board which OS is Debian Stretch 9, and my console application is developed on .NET CORE 2.1.
My application is quite simple by just open several TCP ...
2
votes
2answers
435 views
Pi3B+ automatically shutdown while the temperature is less than 65C
I'm using Raspbian Stretch with desktop which published at 2018 JUNE.
I'm doing some performance testing with Pi3B+ by running my application, the application is just keep send/write data via TCP/IP ...
0
votes
2answers
848 views
Increase CPU for raspberry pi 3b+
I am running a Bitcoin Full Node on Raspberry pi 3b+. Blockchain sync is dead slow because of less CPU. Is there a way to add additional CPU to a pi board. or connecting additional pi to the same Hard ...
0
votes
1answer
59 views
Raspberry Pi dnsmasq performance
I want to block ads in my whole network with dnsmasq running on a Raspberry Pi, connected via Ethernet to the router. Is there any reason to take a RPi3? Or is a RPi2 also sufficient for that task?
0
votes
0answers
535 views
What could I do to optimize rendering time of image with tkinter?
I've been working on a project using Python 2.7 and TKinter which needs to render 25 images per second based on GPIO inputs.
I have working code on my Ubuntu laptop, which is able to render an image ...
1
vote
1answer
255 views
Embed UI App in Windows IoT
I developed a foreground app (UI app) for RPI3 on windows IoT core (version 1709: Fall creators update). also I made my app as start-up app. I want to access the app immediately after turning the ...
0
votes
1answer
980 views
Data transfer of UART over USB too slow
TL;DR : The PI was not the issue. The sender was. Take a look into my answer.
long story
I am facing a performance issue right now on a test setup i use to investigate limitations for my upcoming ...
3
votes
2answers
133 views
CPU speed changes by a multiply of 2 for short durations
I'm using a raspberry pi and I need really fast performance from my CPU for a certain process.
To achieve that, I added isolcpus=3 to my kernel boot parameters, to isolate the core for this process ...
0
votes
1answer
273 views
RPi Cluster for Materials Research
I'm Materials Science student interested in using an RPi cluster for calculations of materials properties.
I'm very new to HPC but what I know about the RPI is that its processor is based on the ARM ...
0
votes
1answer
474 views
Interfacing pygame with dispmanx - performance
I'm working on a graphical application, made for console mode, and facing some performance issues when working with large resolution (1920px wide here).
One part of the display, a video background, ...
1
vote
1answer
470 views
Raspberry-Pi vs Router as a home data server
I'm planning to build a home server, just to setup a file sharing (hooked up to an external HDD) and a torrent daemon. Between a Raspberry Pi and an older Tp-Link WR1043ND Router, which would have ...
3
votes
0answers
37 views
Can I use Rasp Pi 3 to detect objects from live streaming videos?
I am doing a project on UAV(Unmanned Autonomous Vehicle) for which I need to detect objects from live streaming videos.
Can Raspberry Pi 3 satisfy my needs?
Also how is Nvidia Jetson compared to Pi 3?
...
3
votes
0answers
127 views
Can a Raspberry Pi 3 play videos from Ustream?
I am thinking about purchasing a Raspberry Pi 3 to stream video from Ustream in a web browser. Is a Pi 3 running Raspbian capable of doing this without choppy video? Does it have the necessary codecs?
...
1
vote
0answers
65 views
Diagnosing Pi slowness?
How do you diagnose slow computing time issues on the Pi?
I have Ubuntu 16.04 installed on a Raspberry Pi 3. All Ubuntu package updates are installed, and I've installed the most recent Pi firmware. ...
1
vote
1answer
130 views
Very Low Wi-Fi Performance
I've got a problem, i realized that my Wi-Fi connection on RaspberryPI 3 its very slow (that's not normal)
I installed speedtest-cli to test speed of internet.
And this is the result:
Download: ...
2
votes
1answer
3k views
Raspberry pi 3 over all slow performance [closed]
I am a Raspberry pi enthusiast and novice in this space. I recently bought my first Raspberry pi 3 with 32 GB SD Card and 1 GB RAM. I find over all it is very slow. My atom (android) is much faster ...
0
votes
1answer
687 views
Raspberry Pi Reverse Proxy Performance
I currently have a Nextcloud server on a Raspberry Pi 3, which works perfectly fine. In addition I want to setup my Raspberry 2 as a Gitlab Server.
I also have an unused Raspberry Pi 1 Model B+, ...
1
vote
2answers
62 views
What motor controller to use for this setup?
I'd like to run two unipolar stepper motors at 6V 1.2A each and two geared dc motors at 9W 1.2A each simultaneously on the same motor controller. What options are there for this particular setup, and ...
0
votes
0answers
61 views
Hardware platform for building a simple always-on pc
I am considering building a simple Kiosk PC (no keyboard or mouse, only touchscreen).
I have a spare 22" touchscreen with HDMI, DVI and VGA outputs and a USB output for touchscreen.
I want to use ...
0
votes
1answer
271 views
Perfornance communicating through local loopback
I have a Client/Server application where the Server runs on one rpi and communicates with a client running on another rpi. They communicate using Tcp Sockets.
I'm going to do a spin-off application ...
0
votes
1answer
916 views
Is there a way to log CPU load?
I need to examine how my CPU is performing. I could simply open the task manager, but I will have to sit in front of the monitor long time. My problem is that CPU seems to be spiking or overloading ...
0
votes
1answer
747 views
Latency for Raspberry Pi installed on USB drive
I recently bought a Raspberry Pi 3 model B (the last release of the Raspberry foundation), and after reading a lot of articles on the Web for SD card vs USB performances, I decided to move all the ...
0
votes
1answer
964 views
Object detection by color [closed]
I just started planning a project including the raspberry pi . I have experience in programming but never used a pi before. In my project I want to do object detection by color. I need to classify the ...
4
votes
2answers
302 views
Switching from 128 to 512GB USB storage drive makes computer unusably slow
I run Bitcoin on my raspberry pi 3. I have been storing the blockchain on a 128 GB USB SSD drive:
https://www.amazon.com/MyDigitalSSD-SuperSpeed-Portable-External-Storage/dp/B00N0V4JG2
The ...
1
vote
1answer
333 views
Is it a good choice to implement IoT Server using Raspberry Pi 3 [closed]
For Arduino (MQTT Client): Light Sensor, Light, etc.
For Raspberry Pi 3: Node.js server (with AngularJS front end), MQTT Broker, MongoDB
Will the Raspberry Pi 3 Overload? or use Raspberry Pi 3 as ...
1
vote
0answers
910 views
How to Tell if Too Many Threads Are Crashing My Multithreaded Python Program?
How can I tell if my multithreaded Python program is crashing on my Pi 3 because there are too many threads? (Or poorly written ones?)
My multithreaded program involves three looping threads: a main ...
1
vote
0answers
190 views
Abmysal NFS read performance RPi2
Im having a hard time pinpointing why my RPi2 have such a terrible NFS read performance.
Background:
Using openelec or Libreelec i cannot read large BD-rips file structures without having heavy ...
0
votes
1answer
1k views
regarding how to measure memory usage on raspberry pi for a specific program [closed]
I am beginner and I am looking for some help for measuring how much memory a specific program is taking to complete its execution? Is there any article or built in functions I need to start with.
2
votes
2answers
2k views
What is the performance and the performance per watt of Raspberry Pi 3 in GFLOPS
What is the performance of Raspberry Pi 3 in GFLOPS if the CPU is running at 100% and that the GPU is not running at all?
3
votes
2answers
2k views
How much connection speed can I except using Pi 3 in this setup?
I bought the following product to get good internet in my room:
AWUS036ACH 802.11ac AC1200 Wide Range USB 3.0 Wireless Adapter with External Antenna
I'm planning to buy a Pi 3 to use this wireless ...
1
vote
0answers
583 views
Optimization of picamera frame decoding for opencv processing
I am useing next code for frame capture:
from picamera import PiCamera
import utils
res = (1600,1600)
camera = PiCamera(resolution = res)
camera.resolution = res
camera.raw_format = 'rgb'
camera....
3
votes
3answers
2k views
Comparison of terminal (non-gui) performance for Raspberry Pi 3 Model B on different Linux OS distros
From the range of OSs available for Raspberry Pi, I would like to know whether the distro impacts the performance of the OS in pure terminal mode. I plan to run computationally power consuming ...
5
votes
6answers
1k views
Ethernet speed / scp
I'm just copying a bunch of files from a RaspPi 3 to my laptop using scp over an Ethernet connection. The speed is abysmal, around 0.5 to 0.6 MB/sec. Is this normal? I read somewhere that with 10/100 ...
4
votes
1answer
1k views
Why is my simple HTML Canvas rendering only 11fps in Chromium a Pi3?
I've written some simple HTML games for my kids on the Pi. The latest one uses a Canvas but the performance is terrible (and I get the yellow "running hot" square).
I measured by code running in my ...
0
votes
3answers
3k views
Is there a way to improve the performance of my Raspberry Pi B+ model
When I was looking at improving performance of my raspnerry Pi I found a comment
"you dont have to have a swap , and if your doing heavy stuff which needs swap you can always add a HD via the USB -"
...
2
votes
1answer
3k views
Does being undervoltage decreases the Pi's performance?
I recently blew up the 5V 2A PSU that came with my Pi. Since then, I am using my phone's charger, 5v 1A to run my Pi. And while it runs fine most of the time, I see the undervoltage warning, while it ...
3
votes
2answers
4k views
Getting extremely low fps on Rpi 3 while image processing
I am working on a project that requires image processing to detect a traffic light and take action based on its status (on or off). I initially developed the code on my PC, using OpenCV and Python, it ...
4
votes
3answers
12k views
The Hashrate of the Raspberry Pi 2 and 3
I've been searching for a definitive answer to the above question, but somehow only seem to find semi-true statements (according to replies to these statements), or very outdated answers (for example ...
3
votes
1answer
2k views
Does have Raspberry Pi enough performance for Computer vision process in c++
I will write a computer vision application in C++. I need to choose a hardware platform. I cannot use a PC (laptop, desktop, etc). I will process a video that I take a camera.
Can I use a Raspberry ...
