Questions tagged [performance]
Questions about software, hardware or network performance. Please use as a supplement for other, more specific tags.
189
questions
2
votes
0answers
24 views
Overclocking Raspberry Pi after the device has booted
I using a Raspberry-Pi 3B+ device and I am trying to change the maximum frequency after the device has booted. From my understanding, this can be done by editing the files under
/sys/devices/system/...
0
votes
1answer
33 views
Writing to a NAS from a Raspberry Pi 2B - SMB or NFS?
I'm familiar with Windows but a Linux newbie. I have a Synology NAS which I want to use with my Raspberry Pi 2B (which is running Tvheadend). The NAS supports NFS, SMB and AFP. I want to minimise ...
0
votes
0answers
28 views
Raspberry PI router
I am using a Raspberry PI 3B with Raspbian OS 10 as a home router/firewall/pihole/dphcd/reverse proxy. I have connected a USB ethernet adapter (eth1) used as WAN interface. The internal NIC (eth0) is ...
0
votes
0answers
20 views
Performance and Media player OS for old Pi model B
I want to replace my old OSes (RaspBMC and Libreelec8) for Raspberry pi B by a more modern distribution but I also I want to ensure that the performance is not much worse.
As modern distributions ...
0
votes
0answers
27 views
Mounting partition in fstab slows Pi dramatically
I have a RasperryPi model 2, with a 128 GB disk. The machine was too slow, so I resized the rootfs partition (20 GB) and I created another ext4 partition of 100 GB that I mount to /data.
fstab entry ...
2
votes
0answers
42 views
Can I record HD 1080 p 60 fps through USB on a Raspberry Pi 3 or 4?
I have a set-top box with HDMI output and want to record some programs from it on a Raspberry Pi (model 3 or 4).
I found some HDMI to USB 3.0 converters with HDMI 'loop-out' which would enable us to ...
0
votes
1answer
44 views
Slow Pi (running pihole) due to large MicroSD with only one partition?
My piholePi seems somewhat slow.
It is a Raspberry Pi 2 Model B Rev 1.1, so 4 cores @ 900 mhz.
Runs Pi OS Buster
Running the Pi OS Lite version
Here is the general load, of top -d 10
Sometimes, ...
0
votes
0answers
70 views
Differences between B0 and C0 steppings of the BCM2711
I just acquired a Raspberry Pi 4 Model B with 4GB RAM. The processor stepping (revision) is B0 (the heat spreader says 2711ZPKFSB06B0T). It seems to be stable at 2.0 GHz with over_voltage=6; it'll ...
0
votes
1answer
24 views
How to get more samples from ADC converter using SPI
I am trying to use ADC converter in my raspberry which has speed around 100k smp/s. I am setting clock as producent of converter recomend for 20 Mhz. But I only recive around ~ 43k samples/s and I can'...
1
vote
2answers
201 views
Max networking performance with RPi 4 (Gigabit ethernet), with/without a USB3 external disk connected
I want to use my RPi4 as a small home NAS. To do that, I'm trying to benchmark the maximum file transfer performance.
Workflow:
Rpi4 connected to home router with a 1 Gbit cable
computer connected ...
0
votes
0answers
134 views
Samsung 64GB EVO Select U1 Failing SD Card Speed Test
I have a 64 GB EVO Select U1 SD Card (link). I ran the Raspberry Pi Diagnostics SD Card Speed test on it. The card always fails the random write test by a large margin (the target speed for this test ...
1
vote
2answers
559 views
sudo apt-get upgrade is extremely slow
I run a new installation of Minimal image based on Debian Buster on Raspberry Pi 3B.
sudo apt-get update gone as usuall - 1-2 minutes. However, sudo apt-get upgrade is running already 1:30 or so. And ...
0
votes
0answers
78 views
Srcds on raspberry pi 4 with box86
I decided to move my game server to rpi4. I successfully moved server using qemu and chroot, but it's very slow. So i decided to use box86 instead, but this gives me bunch of library errors.
I also ...
1
vote
1answer
56 views
How many parallel server applications are too much?
I am curious what general recommendations are.
I would like to set up the following application, ideally on one device (RPi4, 4GB):
InfluxDB and Grafana
PiHole
PiVPN and SSH
nginx (simple) ...
0
votes
0answers
34 views
Raspi 4 - Extremely Poor LAN Performance
So I'm decently experienced with raspberry pis / SBC, but i've never seen anything like this before.
I can't seem to get more than 2-5mbps down on this thing. I have a 400/20 cable connection here in ...
2
votes
1answer
55 views
Comparison between Object Detection Solutions on Raspberry PI
I have only little experience with embedded systems. I have a Raspberry Pi 4 with 1gb RAM and a Camera Module v2.1 and want to do object detection and tracking on it. By best solution I mean a ...
1
vote
1answer
216 views
Is it possible to use PAPI on a Raspberry Pi 4B with raspbian buster?
I want to use the PAPI library to record hardware performance counters during benchmarks, but it does not seem to work on my Raspberry Pi 4 B.
Installing PAPI was not a problem, but there are no ...
0
votes
1answer
361 views
Improving web browsing performance on the Raspberry Pi 3
Web browsing on the raspberry pi 3 has become rather dreadful with a later version of raspbian. I am running raspbian on a Samsung EVO+ (which is supposedly faster than most SD cards..). I don't ...
4
votes
1answer
155 views
How is CPU in Raspberry Pi 4 +36% faster than for Raspberry Pi 3?
CPU benchmarks show that the Raspberry Pi 4 outperforms Raspberry Pi 3 by +36%
https://www.geeks3d.com/20190930/raspberry-pi-4-vs-raspberry-pi-3-cpu-and-gpu-benchmarks/
How is this possible given the ...
0
votes
0answers
32 views
Network speed problem on Raspberry Pi 3
Both my desktop (running Windows Subsystem for Linux) and raspberry pi 3 connect to router via WiFi.
Download speed from internet on desktop is decent :
~/tmp$ wget https://cdimage.debian.org/debian-...
1
vote
1answer
448 views
Does this flat heat sink even work for cooling?
I bought a raspberry pi 4 case, and it came with these heat sinks you see in the picture + a fan. From the sizes, I guess the flat heat sink is for the CPU. I kind of find it hard to believe that this ...
1
vote
0answers
35 views
How to power RPi with fan from single source?
Electronics beginner here. I have Raspberry Pi 4 GB variant. I have the following power requirements:
power a 5V cooling fan 12V cooling fan (a spare cooler master)thanks @Milliways
safely (i.e. ...
3
votes
1answer
700 views
External SSD-Drive very slow when using mounted encrypted container
I have a Raspberry Pi4 (4GB) with a 250GB SSD connected via USB3.
The SSD has a write speed of about 70MB/s, which is very nice.
The SSD is mounted via fstab and the following settings:
LABEL=DATA /...
1
vote
0answers
473 views
UV4L huge CPU load on streaming audio
I'm building a little baby monitor using RaspberryPi ZeroW and UV4L and run into a little problem. I'm using WebRTC to cast video and audio to my browser from RPI camera (used facedetect demo, ...
0
votes
1answer
367 views
Raspberry Pi 4 Low Voltage performance
I am looking what exactly happens when a Raspberry Pi 4 is powered with low voltage. I am not looking whether this will hurt the Raspberry (as this has been asked before) or how to fix this.
I ...
1
vote
1answer
30 views
Raspberry pi 3 A+ [closed]
The Raspberry Pi 3 A+ ,I think is memory-constrained,in that Chromium does not work well. I wanted to code Scratch 3 on it as Scratch 2 is only available offline. Using the web seems off limits and so ...
1
vote
0answers
326 views
Why does Pi 3 have better WebGL than Pi 4?
Based on https://webglsamples.org/fishtank/fishtank.html
Pi 3B, Raspbian Buster, GL driver on, Chromium reports 18 FPS.
Pi 4B4, Raspbian Buster, GL driver on, Chromium reports 12 FPS.
Any idea why ...
0
votes
0answers
138 views
Raspberry pi 3 B+ Disk IO Bottleneck
I have a RP3 with several docker containers (11) running at home, some for network purposes, other for IoT. The thing is, I've notice several issues related to disk IO, specially when performing unzip ...
1
vote
1answer
627 views
Performance of Raspberry Pi 4 in luks?
I found previous version was quite slow (3MB/s), but this newer Pi has more power.
What speeds can I expect with external hdd and standard installation of luks (I believe aes 256, xts, plain 64)?
1
vote
1answer
95 views
How many blocks can a RPi 2B load per day as a Bitcoin full node?
My Raspi 2B is running a full node over a >20MBit/s internet provider (I subtracted another) and it seems that it only loads about 6 blocks a day which would amount to about 1GB per day.
Is it ...
6
votes
2answers
2k 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
172 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
2answers
573 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 ...
2
votes
2answers
267 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 ...
-1
votes
1answer
595 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
284 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
129 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 ...
9
votes
2answers
3k 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
80 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 ...
4
votes
1answer
1k 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
463 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
1k 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
3answers
2k 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
92 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
1k 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
282 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
2k 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
141 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
310 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
732 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, ...
