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Questions tagged [performance]

Questions about software, hardware or network performance. Please use as a supplement for other, more specific tags.

26 questions with no upvoted or accepted answers
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38 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? ...
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146 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? ...
2
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0answers
726 views

Running a webserver unikernel on RaspberryPi

Is there anyone who have tried to install a webserver unikernel on a Raspberry? In both cases, is it something possible and could one run an efficient webserver from it? What are your thoughts on ...
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866 views

Is RaspberryPi OpenCV fast enough to run eye blink recognition?

I would like to create application that can recognise eye blink recognition on RaspberryPi with Raspberry Pi Noir camera. Eye blinks are fast, so I will have to process many frames per second. Is ...
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0answers
47 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 ...
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0answers
72 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. ...
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0answers
960 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 ...
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193 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 ...
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0answers
614 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....
1
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0answers
2k views

Expected performance of Raspberry Pi as NAS with software RAID-1

What kind of performance can I expect from a Raspberry Pi 2 as a NAS with 2 External hard-drives as a software RAID-1? I know that the Ethernet runs as a USB device so they all (Ethernet and 2 ...
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0answers
754 views

RPi2 Or ODROID-C1 for better OpenCV performance?

I am planning for a project requiring face recognition using OpenCV and got confused between two boards at same price - the Raspberry Pi 2 and ODROID-C1. My question is which board is more suitable (...
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36 views

Trouble running Pi NoIR camera board at documented speeds

The Pi camera board is described as running HD video at 30fps or 0.033spf. I'm using the picamera python module (the only API I could find) and trying to implement the client example. At less than ...
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124 views

How can I tell if Java is performing properly?

There are many different versions of Java and many instructions on how to install the fastest Java version on a Raspberry Pi. How can I tell if the one I've installed is using hard floats? Are there ...
1
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324 views

Is it normal to irssi freezes when receiving dcc?

I'm running it over screen with Raspberry Pi Model B, but when a streaming begins, I am unable to type anything, even Meta + Arrow doesn't work, but changing screen's window with Ctrl + A # works, so, ...
0
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0answers
33 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 ...
0
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0answers
44 views

How fast is ffmpeg in converting .mkv files to hls format on the Raspberry pi 4?

For my current project, I need to convert Mkv files to hls using ffmpeg on my Rasberry pi 3b+, but the speed is of course relatively slow (The speed is 0,25x to 0,3x or around 6.0 - 6.9 fps). The ...
0
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1answer
120 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)?
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35 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 ...
0
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1answer
432 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
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1answer
93 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 ...
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74 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 ...
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650 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 ...
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62 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
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492 views

RetroPi on B+ - Slowness, music glitches when WiFi connected

I have a B+ with retropie 2.3 installed. I've sucessfuly connected a TP-Link TL-WN722N WiFi dongle. It seems that most roms run slower and have music glitches when dongle is connected. When I ...
0
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1answer
62 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
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1answer
63 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 ...