Questions tagged [memory]

Memory refers to the SDRAM (a kind of RAM) found on the Raspberry Pi.

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Plotting CPU and Ram utilization

I want to plot the CPU and memory utilisation of an Apache server hosted in Raspberry Pi 3B+ with Raspbian Stretch in it. For that I have followed the procedure mentioned here. The instructions work ...
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Running x86 Windows app on a Raspberry Pi 3B

I followed this guide to install QEMU in a chroot and I'm able to execute x86 Linux binaries: https://stackoverflow.com/questions/51895452/qemu-debian-x86-on-raspberrypi Next, I tried installing WINE ...
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Python process Memory error

I am running a Python program that is scrapping data so whenever I try to retrieve too much data (I have not been able to scrape files up to 16 MB) the programme crashes. The error: INFO: Got 45294 ...
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Is it possible to use a DDR2 Ram Chip on the PI as a pager file?

simple, I have a few old DDR2 RAM chips laying around, and would like to use the Ram chips for a pager file on my PI. is this possible?
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Pi running a midori fullscreen dashboard and wifi check cronjob keeps running out of memory

I have a Model B Raspberry Pi running the latest version of Raspbian, with all the packages up-to-date. It's fitted with a 32G SD card and its only purpose is to display a dashboard with some metrics. ...
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How to copy data from USB to RAM

I am trying to quickly download images from a USB digital camera to a hard drive disk attached by USB to my raspberry pi. I want to minimize the time the camera needs to be connected to the pi during ...
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Unlock 512 MB Ram Model B

I want to unlock the 512 MB RAM on my Raspberry PI. I have RASPMBC installed and followed http://hubcitylabs.org/unlocking-your-new-raspberry-pis-512mb-of-memory/ But it isnt working, I get error ...
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Memory card issues

So I have had it the piwh for a while running pihole never had any problems until recently got a memory issue. I have used the clean and autoremove and gained 28% but of a 32gb SD card it's showing 6....
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Low RAM, High Swap Usage?

Based on the screenshot, is this normal? In a couple of days, it will increase to 100MB of swap used (default is 100MB), but with low ram. I am running Pi-hole, PiVPN, log2ram, and No-IP.
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How do I set the default maximum Java heap size? [closed]

I want to set the default Java heap size to 1024m without needing to specify the -Xmx option every time I run a jar file. Tried adding export JAVA_OPTIONS=-Xmx1024m to .bashrc file but it didn't ...
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Creating Swapfiles

I have a Pi3 hooked up with a WDLabs PiDrive I have Raspbian Lite installed on the drive and in trying to run some docker images simultaneously some of the images processes are being "killed" with a ...
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Turn Raspberry Pi off but keep the RAM powered?

Is it possible to turn almost everything on a Raspberry Pi off (CPU GPU etc), except for the ram? Basically putting the Pi in a low power state but preserving whatever it was doing at the moment on ...
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Kernel panic - not syncing : out of memory and no killable processes when booting after setting GPU memory to 256 MB in raspi-config

I tried booting in recovery mode (holding down shift from a USB keyboard attached to the Pi2) and still can't boot to fix. Any solutions? Thanks
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aMule and Deluge on Raspberry Pi

I'm already using my Pi as a media center, now I would also like to transform it into my download center. I've seen that both deluged and amule-daemon packages are available, but the question is, will ...
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Clang sanitizers fail

On my Pi 4 Model B with 4GB running the 64-bit Raspberry Pi OS: $ uname -a Linux pi4b 6.1.21-v8+ #1642 SMP PREEMPT Mon Apr 3 17:24:16 BST 2023 aarch64 GNU/Linux I have installed Clang 16 from llvm....
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RAM Change on the raspberry pi 4

Can you change your RAM in your pi that you get 16gb RAM?
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Deleted the contents of the sd card but made sure to back it up problem

Deleted the contents of the sd card but made sure to back it up but when I am simply try to copy paste the contents it does not work. My raspberry pi does not boot up. Any suggestions on what I can do?...
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Using DMA for efficient memory copying

Some background info about my problem: I have an external device that is constantly giving me data through SPI I handle SPI reads with DMA from userspace, as kernel based solutions (already ...
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Slow write speeds to Rasberry Pi Pico flash using LittleFileSystem/LittleFS

I have a Sparkfun Things Plus RP2040 with 16MB of onboard flash. I am trying to write a program which uses the flash as a buffer (let's say to store 5MB of data) before writing to an SD card. The idea ...
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High speed TTL pulse generation

I'd like to take ~400 MB binary file, where 0's indicate low and 1's indicate high, and stream this out the rPi I/O with 20 ns time base. So something like 0000101001 Would yield Low Low Low Low Hi ...
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Raspberry pi unable to allocate memory error when training a model

I'm trying to train a model on my raspberry pi 4 B 8gb and numpy can not allocate memory -- it needs 1.09 gb. I went digging online and haven't found anything useful. Vcgencmd get_mem gives me 948M ...
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Memory-Related Issue of RPi Seizing Up?

On RPi 3B/Raspbian, I'm experiencing dreadful seize-ups when it appears I've filled the memory up with programs. Mouse movements, for example, can take 10 seconds. This happens with a standard setup. ...
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Moving /home dir form sd card to USB drive on a Rasspberry pi 4

I'm trying to run Insightface package on raspberry pi 4 after struggling to install all required packages namely cv2 and mxnet but when I exit python or run my program I get “corrupted size vs. ...
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Why does OOM killer output not appear in dmesg?

I've got a Buster box (10.2) and I'm investigating some system freezes. While going through that, I think I'm not getting the OOM output in the syslog. For instance, running tail /dev/zero which is ...
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Virtual register address translation on the raspberry Pi 4

When taking a look at the manual of the BCM2835 (which seems to be the correct one for the BCM2711), we can see, for example, that the base address of the SPI device is 0x7E204000 (page 152). Assume ...
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Raspberry Pi crashing while running VGG16

I need to run VGG16 as a convolutional base for feature extraction on some images. I am trying to initialize it on the Raspberry Pi 3B, but the Pi keeps crashing and restarting. I suspect that the Pi ...
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Pi 3 Model B+ can't boot after changing vRAM

I just got the device (Pi 3 Model B+) and am a total beginner. I'm using NOOB/Raspbian. Every time I try to change the video ram (either through the GUI or the config.txt) the device is unable to ...
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Banana Pi memory bus clock speed [closed]

I hope this is not too off-topic but I think you are the people that may most likely got their hand on a Banana Pi board and can answer my question. What is the memory clock speed of the DDR3 RAM on ...
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Raspberry PI 3 Increase Gpu Memory to 944 [closed]

I use Raspberry PI 3 and wnat to get more GPU memory to work. I overclock my PI to get more performance because I use it for home Apache/PHP/MySQL server, Access Point and somethimes play music and ...
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RPI3B+ Chromium Freeze - RAM Swap

I have some Raspberry pi's that I want to use it as a Browser Kiosk. When I use more than one tab with chromium the pi completely freeze I need to reboot it after this because the lack of ram, if I ...
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Why Does my pi 3B+ say it only has ~100M of ram?

EDIT this apprears to be a software issue. I booted another RPI with a fresh OS and it showed 1GB of ram. I then booted it off the HDD that I am using for the other rpi and it showed that there was ...
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How to find the memory requirement (RAM) when network load is know on raspberry

I am want to use the Raspberry Pi for my experimental work. My network load will be approximately 2000bits. How I can find the memory (RAM) requirement against the network load? Which formula can be ...
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memory exhausted: can not allocate memory error in raspberry pi

I am trying to turn my raspberry to a PiCroft. For that I need to use these commands: cd ~/ git clone https://github.com/MycroftAI/mycroft-core.git cd mycroft-core bash dev_setup.sh I did nothing ...
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Transferring 16gb microSD to 64gb

I made a backup of the 16gb microSD card (installed with NOOBS) for a Raspberry Pi 3 and saved it to my Mac using: sudo dd if=/dev/disk2 of=~/Desktop/raspberrypi.dmg Then, I took a 64gb microSD card,...
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Raspberry Pi project with sound concatenation based on date/time and events [closed]

I'm thinking about making my first Raspberry Pi project and have some questions regarding what I will need to be able to complete this project. The end result should be a sound based machine with two ...
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