Questions tagged [memory]
Use this tag for memory management or issues in programming. For questions about memory hardware issues or errors in general software, go to https://superuser.com, or https://serverfault.com if this is related to enterprise-level hardware or software.
memory
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JFR not dumping file contents
I am trying to have my process run with JFR enabled. Recently, when the process ends, contents are not dumped to the JFR file, so it’s just empty. If I run the process for maybe 3 minutes and stop it, ...
- 11
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12
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Large allocation metadata is causing fragmentation and wasting DRAM in jemalloc when using extent hooks
I am writing a simple custom extent allocator that returns extents from a pre mapped area (this way I can explicitly control the mapped area -- and the allocations in it). I am using the dev branch of ...
- 149
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Why does the program freeze? [duplicate]
I've written the following code where two pointers are: char* and int*. They all point at the 'sym' variable that just contains one symbol. Just for fun, I decided to change the symbol using the int ...
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While running a piece of driver code on an AMD64 machine, it appears that there are issues related to cache consistency or out-of-order execution
While running a piece of driver code on an AMD64 machine, it appears that there are issues related to cache consistency or out-of-order execution. Are there any experienced engineers who can help ...
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How do I call Windows functions from EDK2?
I made a DXE_RUNTIME_DRIVER in EDK2. It hooks the gRT->Setvariable function, which I use to communicate with the driver from Windows (by setting a NVRAM variable, which sends data to the hooked ...
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SSAS memory usage Object ID Big and Small
I am analyze why my ssas server is consume a lot of memory some times, it is not when we proccess the cubes.
If i run the DMV memory usage i can set it is OBJECT ID Big and Small that is consume a lot ...
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WPF application memory different on different system
Wonder how does WPF memory works. Created a simple wpf window application with .NET 8. The memory usage is observed below:
System 1: 900++MB (Windows 11)
System 2: 250++MB (Windows 11)
System 3: 50++...
- 15
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1
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Jupyter Notebook error: Unable to allocate / Too large work array required, when calculating inverse matrix
I want to calculate the (generalized) inverse of a 30807 x 30807 matrix.
I tried to use np.linalg.pinv(matrix), and the error "MemoryError: Unable to allocate 7.07 GiB for an array with shape (...
- 1
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9
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SLURM --mem v. --mem-per-cpu for the purposes of running MATLAB in parallel
I'm learning how to submit batch jobs using SLURM, and I'm curious if there any difference between
#SBATCH -n 32
#SBATCH --mem==128G
v.
#SBATCH -n 32
#SBATCH --mem-per-cpu=4G
If I'm not mistaken, --...
- 1
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46
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How do I keep my kernel module installed? [duplicate]
I'm quite new to Linux, so pardon me. Running Kali Linux 6.8.11-amd64.
I'm following a hacking book and I've reached a section that is dedicated to rootkits. Specifically making a C program to replace ...
-2
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Difference between an 8-bit addressable CPU and an 8-bit CPU [closed]
I was recently given a test and they mentioned that the CPU was an 8-bit addressable one. They wanted me to write a C program that would write a character of arrays to some specific location in the ...
-1
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27
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Is it possible to fully utilize the memory size equal to the maximum memory used in an AWS Lambda function?
I've got a lambda function that executes a docker application. When testing it locally, the Memory Size was 3008 MB and the Max Memory Used was also 3008 MB, so the memory usage matched the allocated ...
- 9
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votes
2
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83
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socket read access violation
During the second read from the socket I get a read error.
void ClientWindow::on_button_send_clicked()
{
auto message = std::make_shared<std::string>(ui->plainTextEdit->toPlainText()....
- 11
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How can Flat sequences occupy more memory than container sequences in Python? [duplicate]
Fluent python book describes two types of sequences: Container and Flat, with container sequences being able to hold items of different types but as reference to python objects, while flat sequences ...
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Increasing the size of a neural network layer without compiling a new model in Tensorflow
I am training a narrow 3-layer tensorflow neural network with layer sizes (input_size, small_number_hidden_units, output_size) and using the learned weights as a blueprint for the initial conditions ...
