36,502 questions
2
votes
0
answers
96
views
What is the best/correct way to handle shared memory objects in a heterogeneous multi-CPU embedded microprocessor context [closed]
I'm working on several projects that are targeting bare-metal multi-core microprocessors, with hardware provisions for shared memory.
In other words, the device has several separate CPU cores (of ...
- 5,914
0
votes
0
answers
86
views
move_pages() only is effective temporarily in C++
I'm trying to write NUMA-aware codes, and i encountered some unexpected behavior. I decide to use move_pages() to test if i create the correct NUMA placement but the result is very confusing.
for (...
- 11
1
vote
1
answer
88
views
Which resources of a modern x86 CPU core are occupied by memory transactions in flight?
I want to clarify how modern x86 architectures handle the latency of memory transactions that go all the way to DRAM. Specifically, which resources (which queues) get occupied waiting for the memory ...
- 4,783
0
votes
0
answers
18
views
Does alloc_calls of slab_info will decrease if the memory is freed?
I found the count of an API in alloc_calls is not increased over time and decreased if I free allocated memory. Is this true?
So if I unload the driver, the API should disappear in the alloc_calls ...
- 1
1
vote
1
answer
110
views
Reading another process' memory in C not returning results after multiple queries
I'm trying to read a variable from another process' memory in C and upon first query, for which I'm using VirtualQueryEx function, some potentially matching values are returned. However, when I change ...
- 63
-2
votes
0
answers
53
views
Where does kubectl top node read data from?
Yes, I have tried how to get the Node CPU% and MEMORY% value using java io.fabric8 kubernetes-client library, didn't get the answer there.
I am trying to understand the huge gap between the sum(...
- 2,821
2
votes
3
answers
155
views
How CPU read memory in alignment?
I have read a post about Why we need memory alignment.
I mostly focus the effects on the performance when CPU read memory.
The CPU always reads at its word size (4 bytes on a 32-bit processor), so ...
- 21
5
votes
1
answer
163
views
Zero-initialized array keeps having non-zero values [closed]
I am encountering something extremely strange on my system right now.
#include <cstdint>
#include <iostream>
constexpr size_t N = 1l<<31;
int main() {
auto buf = new int64_t[N]{...
- 2,123
0
votes
1
answer
85
views
Grails app + Tomcat + Spring Boot - Memory usage is increasing while the application is idle
I started to test Docker to run my application and I had noticed my memory consume when using "docker stats". I see the memory used from the container increasing like, every f5 on my page or ...
- 9
0
votes
0
answers
115
views
Python logging MemoryHandler leaks memory?
In a main.py file I have following code:
import time
from v1 import log, ServiceLogger
from logging.handlers import MemoryHandler
class Service:
h = MemoryHandler(1000)
id = None
log = ...
- 11
-3
votes
2
answers
113
views
Facing issues with Structs and malloc in an assignment question [closed]
This was a question in a C Programming assignment given to me as a part of last week's assessment. Requesting everyone to kindly explain what needs to be done and how it needs to be done. Kindly note ...
0
votes
0
answers
57
views
Can you give me advice on memory issue from my flutter project?
The app I developed shows the highest memory usage on my device—even more than YouTube, Instagram, or other SNS apps—despite not handling videos or large image data.
I’ve searched extensively for ...
- 1,294
2
votes
1
answer
83
views
Weird problems with Zig Array List(s)
In the below code, I have the function "get_specific_files". The objective of this function is to check if certain filenames contain some word, and then return all the files that contain ...
- 53
0
votes
2
answers
211
views
Combining two huge text files and removing duplicates
The Specific Problem
I am starting with two gigantic input text files containing lots of lines with a single string value on each line. I'd like to write a Java program to combine the contents of ...
- 1,053
0
votes
0
answers
44
views
What can corrupt memory in Julia -- "probably modified after bring freed?"
I am very new to Julia. I am working on a project written in Julia and I am using the following script:
import Pkg
Pkg.activate(@__DIR__)
project_root = normpath(joinpath(@__DIR__, "..", &...
