Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Login
Remember
Register
Ask
Q&A
All Activity
Hot!
Unanswered
Tags
Users
Ask a Question
Ask a Question
Categories
All categories
Topic[话题] (13)
Life[生活] (4)
Technique[技术] (2.1m)
Idea[创意] (3)
Jobs[工作] (2)
Others[杂七杂八] (18)
Code Example[编程示例] (0)
Recent questions tagged Memory
0
votes
573
views
1
answer
memory management - How do I choose heap allocation vs. stack allocation in C++?
One of the C++ features that sets it apart from other languages is the ability to allocate complex objects as ... 's allocated on the stack? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
730
views
1
answer
memory - C++ struct alignment question
I have a predefined struct (actually several) where variables span across 32-bit word boundary. In Linux (and Windows ... not to. Any ideas? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
774
views
1
answer
memory leaks - How to garbage collect a direct buffer in Java
I have a memory leak that I have isolated to incorrectly disposed direct byte buffers. ByteBuffer buff = ByteBuffer. ... (); do not work. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
504
views
1
answer
memory management - How to create a list or tuple of empty lists in Python?
I need to incrementally fill a list or a tuple of lists. Something that looks like this: result = [] firstTime = ... to get what I'm looking for See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
463
views
1
answer
memory management - C++ object created with new, destroyed with free(); How bad is this?
I am working on modifying a relatively large C++ program, where unfortunately it is not always clear whether ... one of the many problems. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
530
views
1
answer
memory - Class members that are objects - Pointers or not? C++
If I create a class MyClass and it has some private member say MyOtherClass, is it better to make ... pointers when they are classes. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
392
views
1
answer
memory - What is the best way to add a value to an array in state
I have an array in state, let's say this.state.arr. I want to add something to this state property, and ... always first making a copy in memory See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
391
views
1
answer
memory management - Difference between logical addresses, and physical addresses?
I am reading Operating Systems Concept and I am on the 8th chapter! However I could use some clarification, ... my understanding is incorrect. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
618
views
1
answer
memory - Understanding the Linux oom-killer's logs
My app was killed by the oom-killer. It is Ubuntu 11.10 running on a live USB with no swap and the PC has 1 Gig of ... 0 gvfsd-trash [11686.043588] [ 2640] 999 2640 1933 85 0 0...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
500
views
1
answer
memory - How does Java (JVM) allocate stack for each thread
A Java application starts up with one heap for all threads. Each thread has its own stack. When a Java ... may threads will be created? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
728
views
1
answer
memory - How do I determine the correct "max-old-space-size" for node.js?
I'm having some trouble to understand how Node.js acts based on the parameter max-old-space-size. ... everything about node internals. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
459
views
1
answer
memory - How do C++ progs get their return value, when a return is not specified in the function?
I recently wrote a post: Weird Error in C++ Program: Removing Printout Breaks Program ...in which I was trying ... return value from?? Thanks!! See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
719
views
1
answer
memory segmentation - Segment size in x86 real mode
I have one doubt regarding the size of segments in real mode as they can't be more than 64K but can be less ... need to do something like that ? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
687
views
1
answer
memory - intrinsic memcmp
According to the gcc docs, memcmp is not an intrinsic function of GCC. If you wanted to speed up glibc's ... some compilers and not for others? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
468
views
1
answer
memory - How to avoid long chain of free's (or deletes) after every error check in C?
Suppose I write my code very defensively and always check the return types from all the functions that I call. So ... out. Thanks, Boda Cydo. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
515
views
1
answer
memory management - How many bytes per element are there in a Python list (tuple)?
For example, how much memory is required to store a list of one million (32-bit) integers? alist = range(1000000 ... (1000000)) in Python 3.0 See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
835
views
1
answer
memory - translate virtual address to physical address
The following page table is for a system with 16-bit virtual and physical addresses and with 4,096-byte pages. The ... it did not help me much. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
612
views
1
answer
memory management - C++ Push Multiple Types onto Vector
Note: I know similar questions to this have been asked on SO before, but I did not find them helpful or very ... ? Thank you for your time. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
498
views
1
answer
memory - Drawbacks of using /LARGEADDRESSAWARE for 32 bit Windows executables?
We need to link one of our executables with this flag as it uses lots of memory. But why give one EXE file ... as standard for all EXE files? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
605
views
1
answer
memory - Difference between word addressable and byte addressable
Can someone explain what's the different between Word and Byte addressable? How is it related to memory size etc.? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
867
views
1
answer
memory - Why freed struct in C still has data?
When I run this code: #include <stdio.h> typedef struct _Food { char name [128]; } Food; int main (int ... is this? Is memory really freed? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
1.0k
views
1
answer
memory management - Mex files: how to return an already allocated matlab array
I have found a really tricky problem, which I can not seem to fix easily. In short, I ... and use mxCreateSharedDataCopy and mxUnshareArray. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
638
views
1
answer
memory management - Is there a minimal heap size for Android versions?
Many posts have talked about Android heap size, and so far what I've found out is that the only common thing about ... 't use any more of this. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
861
views
1
answer
memory management - How to free 2d array in C?
I have the following code: int **ptr = (int **)malloc(sizeof(int*)*N); for(int i=0;i<N;i++) ptr[i]= ... just do free(ptr) and ptr will be freed? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
785
views
1
answer
memory - Python deep getsizeof list with contents?
I was surprised that sys.getsizeof( 10000*[x] ) is 40036 regardless of x: 0, "a", 1000*"a", ... python-allocate-new-memory-for-identical-strings See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
716
views
1
answer
memory - What are uses of the C++ construct "placement new"?
I just learned about the C++ construct called "placement new". It allows you to exactly control where a ... the same location in memory. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
573
views
1
answer
memory leaks - Does Python GC deal with reference-cycles like this?
Using objgraph, I found a bunch of objects like this: Will Python's garbage collector deal with cycles like this, ... wider view of the loop: See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
0
votes
588
views
1
answer
memory - GCC's reordering of read/write instructions
Linux's synchronization primitives (spinlock, mutex, RCUs) use memory barrier instructions to force the memory access ... very useful. Thanks! See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
memory
Page:
« prev
1
2
3
4
5
6
7
8
9
10
11
next »
Ask a question:
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question
Just Browsing Browsing
[1] 前端导入excel,并且显示在页面,要求保留excel的样式,有没有啥解决方案?
[2] c# - Simple internal HTTP GET request failing due to SocketException: An existing connection was forcibly closed by the remote host
[3] 替 Button 添加onClick属性后 点击报错
[4] ios - Undefined symbols for architecture arm64, Xcode 12.3
[5] Restrictions on number using typescript
[6] javascript - Loop through divs and add onmouseover
[7] dva多个model依赖同一个接口返回,怎么处理好?
[8] Recommended way to Docker build gradle and extract test results for Jenkins publishing
[9] js正则的问题
[10] Java多模块项目,分离打包后统一异常处理失效
2.1m
questions
2.1m
answers
60
comments
57.0k
users
Most popular tags
javascript
python
c#
java
How
android
c++
php
ios
html
sql
r
c
node.js
.net
iphone
asp.net
css
reactjs
jquery
ruby
What
Android
objective
mysql
linux
Is
git
Python
windows
Why
regex
angular
swift
amazon
excel
algorithm
macos
Java
visual
how
bash
Can
multithreading
PHP
Using
scala
angularjs
typescript
apache
spring
performance
postgresql
database
flutter
json
rust
arrays
C#
dart
vba
django
wpf
xml
vue.js
In
go
Get
google
jQuery
xcode
jsf
http
Google
mongodb
string
shell
oop
powershell
SQL
C++
security
assembly
docker
Javascript
Android:
Does
haskell
Convert
azure
debugging
delphi
vb.net
Spring
datetime
pandas
oracle
math
Django
联盟问答网站-Union QA website
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
广告位招租
...