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Questions tagged [processor-speed]

The clock rate (frequency) at which the CPU of the Raspberry Pi processes its commands.

1
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1answer
45 views

P5 code optimisation for raspberry Pi

When I try to execute this sketch that is based on a face recognition algorithm it really lags on raspberry, whereas when run on different devices (macbook pro and notebook), it runs smoothly. You can ...
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0answers
46 views

How to speed up my Raspberry pi

I'm planning to do Auto start Chromium-Browser in kiosk mode. But it takes 45 sec (from powerup raspberry) to totally load the particular link. is there any way to decrease the time..?
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1answer
37 views

My rotary encoder is missing pulses - what are some potential solutions?

I have a rotary encoder with a very high resolution (5000 pulses per rotation). I used what I believe to be a fairly optimized rotary pulse counter program written in C found here but the faster I ...
-6
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1answer
43 views

Transistor Count vs Bit Count [closed]

When looking at the history of microprocessors I see that there is not a consistency with the bit count and transistor count of the microprocessors. For instance the first Intel 4004 was a 4 bit chip, ...
0
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0answers
203 views

Mplayer starts very slowly

I'm using raspberry pi zero w, I generally need to start mplayer again and again in separate times. However, it starts to run really slowly. Is there a way to make its start faster? I'm using rotary ...
0
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0answers
96 views

Simple socket server taking up 75% cpu

I've made a socket server to listen for data to play a sound for a length of time. All is working fine, except I see that cpu runs constantly at 75%, and after some time I get an overheat warning. I'...
0
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1answer
170 views

mqtt on rpi zero w

I have rpi zero w system with below spec. system specifications: micro SD card slot, a mini HDMI port, two micro USB ports (one for power, one for USB), and 512MB of RAM. It has a single-core 700 MHz ...
2
votes
1answer
369 views

RPi threading too slow

So I have rpi wheeled robot, with wheel encoders and I want to always keep the track of the encoders and to be able to access the value when ever I need it. Basically, I created a thread, which ...
1
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2answers
419 views

Can the Rpi 3 handle 4 cameras at the same time?

I want to take 4 pictures simultaneously with 4 different cameras on the Raspberry Pi. I have found this multicamera adapter, but I do not know whether the Rpi can handle taking 4 pictures at the ...
1
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2answers
511 views

Speedup boot process

Is there a way to find the boot process detail, the image takes more time to boot. The following command shows kernel takes more than 2 minutes and userspace takes more than 1 minute. How can we ...
5
votes
2answers
594 views

How many cores does the Pi 2 model B use by default?

How many cores does the Pi 2 model B use by default when executing a command? The reason I am asking this is my friend told me to use the suffix -j4 when I ran the code sudo make. He told me that it ...
6
votes
3answers
10k views

YOLO or SSD on raspberry pi

I've run yolov2 on my Raspberry Pi 3 but I got 1 frame each 13s (which is pretty bad for live object detection). I've also tried an SSD but the results were terrible too. Is there anything I could do ...
2
votes
2answers
16k views

Raspberry PI 3 as NVR

I'm planning to do a NVR with a Raspberry Pi 3. I want to record video from 8 IP cameras at 640x480@24fps with motion detection implemented in the Raspberry Pi (using motion or OpenCV probably) so the ...
4
votes
2answers
1k views

Cycles per instruction

I have a default raspberry pi running raspbian, assuming it’s running at 700MHz. I’d think that every instruction would take only one or a few cycles at most. In my experiments that doesn’t seem to be ...
7
votes
1answer
668 views

Does a cool Raspberry Pi 3 run more efficiently?

I think this is a slightly different question related to hardware temperatures. I am curious about the drop in temperature after adding a fan and the impact of temperature on processor efficiency. I ...
0
votes
1answer
309 views

Problem with DLNA video streaming

I have a raspberry model B (the first one) and it acts as a DLNA server through my local network. A few days ago I tried to watch a film streamed by the rasp, it was full hd and sometimes it used to ...
0
votes
2answers
593 views

Which OS would run faster in image processing? Is “RISC OS” is well suited for this task?

I am planning to use my raspberry pi 2 in an image processing project. Is there an OS which would be particularly helpful in this purpose? I was thinking about RISC OS, because I have read that it ...
2
votes
2answers
191 views

Is Raspberry Pi 2 better than Raspberry Pi B+ for controlling RGB LEDs via software PWM

Is the Raspberry Pi 2 better at controlling RGB LEDs then then Raspberry Pi B+ due to it being faster? Reason why I think this is because when I control my RGB LEDs I notice they change colour (both ...
1
vote
0answers
2k views

How do I increase the speed of my Python OpenCV program?

Specs: RPi 2, not overclocked, did rpi-upgrade, using ssh to run vnc on laptop. I've got a face tracking algorithm that is working fine on the Pi (and my PC). Problem is it has a lag of about 2 ...
0
votes
1answer
350 views

How do I port my game to the Raspberry Pi?

I am working on a game and would like to be able to play it on my Raspberry Pi. Right now it's browser based, but I'm not married to that. Today I ported it over to Pygame, but it's way too slow. I ...
1
vote
3answers
14k views

Speed up game ROMs with RetroPie

Apart from overclocking my Pi (already done), is it possible to speed up and emulated game as some ROMs that I play, (specifically Final Fantasy 6 for the SNES) as the music in the game drops at the ...
2
votes
1answer
288 views

Replacing an old lab PC with a raspberry pi

I want to replace an old pc which were used for controlling some devices in our lab. For this purpose we need a small pc with at least 26 GPIO-ports and the ability to send the retrieved data over ...
1
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1answer
4k views

Optimising ImageMagick Conversions for Raspberry Pi

I've been working with ImageMagick on the Raspberry Pi (model B) and have noticed a bottle neck in the area of image conversions. When converting between bmp, jpg, png, etc. the speeds are acceptable ...
4
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1answer
170 views

What is the relation of the frequency and operation execution time?

I am started to program the RPI without any OS, I would like to create a delay function .globl noop noop: nop extern void noop(); void delayUS(uint32 useconds) { uint32 i; uint32 lpnr = ...
4
votes
1answer
3k views

Is it possible to do GPU-accelerated tasks on a raspberry pi?

I have been looking into doing some cluster computing on several raspberry pis. Is it possible to use any kind of GPU acceleration on a pi?
5
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3answers
4k views

Is there a dashboard for Raspberry Pi?

I'd like to remotely be able to check RasPi's status, including: processor speed, usage free disk space the CPU temperature top processes ... ... as a dashboard-like web page. I know I could (...
16
votes
2answers
64k views

Can I use two raspberry pi to work together and faster?

The computing power of raspberry pi is limited and so is the access speed. I have 2 raspberry pi and was hoping I could somehow connect them together and make them work in parallel to get better and ...
17
votes
8answers
49k views

Will a Raspberry Pi perform well with XBMC and many movies?

I have a library with more than 1000 movies and I'm searching for a cheap but good performance media centre system. I've been using a Xtreamer Prodigy until now but it's firmware's a little slow (...
53
votes
5answers
86k views

How do I determine the current MHz?

I've been trying to get an accurate reading of my Raspberry Pi's MHz, since I overclocked it in /boot/config.txt My /boot/config.txt is as following: pi@raspbmc:~$ cat /boot/config.txt arm_freq=900 ...