Last Updated :
26 Mar, 2025
Stack size is a crucial aspect of C/C++ programming that determines the amount of memory available for storing function call frames and local variables. In this article, we will discuss the importance of stack size, how it is determined, how to check and increase it, and best practices for managing it.
How stack size is determined?
The stack is a section of memory that is used for storing function call frames and local variables.
Each function call creates a new frame on the stack, and when the function returns, the frame is popped off the stack. If the stack size is too small, the program may crash due to a stack overflow. On the other hand, if the stack size is too large, it can cause memory fragmentation and slow down the program.
Stack size is determined by a combination of operating system limitations, compiler settings, and system architecture.
How to check stack size in C/C++?
- Using the ulimit command in Linux/Unix: The ulimit -s command displays the current stack size in Linux/Unix.
- Using the _alloca function in Windows: you can use the _alloca function to allocate memory on the stack and check the remaining stack size.
How to increase stack size in C/C++?
If the stack size is too small, you can increase it by changing operating system settings, changing compiler settings, or using the alloca function.
- In Linux/Unix, you can increase the stack size by modifying the ulimit command.
- In Windows, you can increase the stack size by modifying the linker options or using the alloca function to allocate memory on the stack.
Example:
A practical example of stack size in C/C++ can be seen in a program that uses recursion to calculate the factorial of a given number. The following code demonstrates a recursive function that calculates the factorial of a number:
C++
#include <bits/stdc++.h> using namespace std; int factorial(int n) { if (n == 0) { return 1; } else { return n * factorial(n - 1); } } int main() { int n; cout << "Enter a number: "; cin >> n; cout << "The factorial of " << n << " is " << factorial(n) << endl; return 0; }
Time complexity: O(n)
Auxiliary space: O(n).
In this example, the factorial function calls itself recursively with a decreasing value of n until it reaches the base case of n being equal to 0. Each time the function is called, a new frame is created on the stack to store the function’s local variables and the return address.
How to avoid Stack Overflow?
To avoid stack overflow in this program, one best practice would be to use an iterative solution instead of recursion. This can be done by using a loop to calculate the factorial, as shown in the following code:
C++
#include <bits/stdc++.h> using namespace std; int factorial(int n) { int result = 1; for (int i = 1; i <= n; i++) { result *= i; } return result; } int main() { int n; cout << "Enter a number: "; cin >> n; cout << "The factorial of " << n << " is " << factorial(n) << endl; return 0; }
Time complexity: O(n).
Auxiliary space: O(1).
By using an iterative solution, we avoid the overhead of creating multiple function call frames on the stack, which reduces the risk of stack overflow. Additionally, it’s also important to keep track of the stack usage of your program and adjust the stack size accordingly.
Summary
In conclusion, the stack size is a crucial aspect of C/C++ programming and It should be carefully managed to ensure the stability and performance of the program. By understanding how the stack size is determined, how to check and increase it, and by following best practices such as using an iterative solution instead of recursion and monitoring stack usage, you can prevent stack overflow and improve the performance of your program.
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Правила раздела Windows
1. Указывайте версию Вашей ОС.
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3. Не разрешается давать советы из разряда «Поставь Linux».
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Размер стека по умолчанию
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Вертилятор Рейтинг (т): 271 |
Собственно, сабж. Сообщение отредактировано: wind — |
AlexJ |
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Цитата wind @ Собственно, сабж.
Вообще-то этим занимается програмист который пишет програму а не виндовс, |
KotovAlexandr |
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Full Member Рейтинг (т): 3 |
AlexJ, а от куда ты узнал что по умолчанию стек = 1 метр памяти? |
Testudo |
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Каждая программа сама определяет сколько стека ей нужно. Это зависит целиком от разработчика. |
AlexJ |
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Цитата KotovAlexander @ AlexJ, а от куда ты узнал что по умолчанию стек = 1 метр памяти? Из документаии по языку на котором работаю. По умолчанию(если не указывать размер стека), во многих языках размер стека = 1мб. MSDN также говорит: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dllproc/base/thread_stack_size.asp The default size for the reserved and initially committed stack memory is specified in the executable file header. Thread or fiber creation fails if there is not enough memory to reserve or commit the number of bytes requested. The default stack size used by the linker is 1 MB. To specify a different default stack size for all threads and fibers, use the STACKSIZE statement in the module definition (.def) file. The linker rounds up the specified value to the nearest 4 bytes. Best regards, |
wind |
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Вертилятор Рейтинг (т): 271 |
Ну что же, очень печально Для интерпретируемых программ под Windows возникает непреодолимая проблема с управлением размера стека. Сообщение отредактировано: wind — |
B.V. |
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Берем любую читалку/писалку PE заголовка и правим Stack Reserve Size… |
wind |
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Вертилятор Рейтинг (т): 271 |
Цитата B.V. @ Берем любую читалку/писалку PE заголовка и правим Stack Reserve Size…
Этот метод и так лежит на поверхности Сообщение отредактировано: wind — |
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To set this linker option in the Visual Studio development environment
- Open the project’s Property Pages dialog box. For details, see Set C++ compiler and build properties in Visual Studio.
- Select the Configuration Properties > Linker > System property page.
- Modify one of the following properties: Stack Commit Size.
What is the size of stack?
Size of a stack is the number of items present in a stack at a particular instant. Consider the below stack. It contains four items i.e. 5, 7, 4, 10. Therefore the size of the stack is 4.
How big is the .NET stack?
In Microsoft Windows 2000, if the Microsoft ASP.NET Worker Process (ASPNet_wp.exe) creates a thread, the maximum stack size of the thread is 1 MB. In Windows Server 2008 and higher, the maximum stack size of a thread running on 32-bit version of IIS is 256 KB, and on an x64 server is 512 KB.
Why is stack 1MB?
If the specified stack size is larger than default stack size then it rounded up to the nearest multiple of 1MB. So Microsoft choosed this sizes as the default stack sizes for all user mode applications. And there are no other reasons.
Can I increase stack size?
You may need to increase the stack size if your program gets stack-overflow messages at runtime. You can also set the stack size by: Using the /STACK linker option. For more information, see /STACK (Stack allocations).
How do you increase stack size in code blocks?
How to increase stack size in c++ (IDE : codeblocks)?
- go to settings -> compiler.
- go to linker settings tab and add “-Wl,–stack,SIZE” in the other linker options section (i have set 512mb)
How do I find stack size?
size() method in Java is used to get the size of the Stack or the number of elements present in the Stack. Parameters: The method does not take any parameter. Return Value: The method returns the size or the number of elements present in the Stack.
What is the maximum size of stack?
In Visual Studio the default stack size is 1 MB i think, so with a recursion depth of 10,000 each stack frame can be at most ~100 bytes which should be sufficient for a DFS algorithm. Most compilers including Visual Studio let you specify the stack size.
What is a .NET stack?
. NET is a full-stack development platform that enables you to build, deploy, and manage applications and services. It provides a comprehensive and flexible technology stack for developing modern web applications and services. ASP.NET Core is a new open-source and cross-platform version of .
What is the size of heap memory in C#?
The heap in . Net is a portion of memory that for practical purposes can reach a maximum of around 1.5GB for 32-bit processes and unlimited for 64-bit (again, for practical purposes), and it will indeed request memory as needed from the OS.
What is the maximum stack size?
It depends on your operating system. On Windows, the typical maximum size for a stack is 1MB, whereas it is 8MB on a typical modern Linux, although those values are adjustable in various ways.
How do you calculate stack size?
In summary, it is not entirely trivial to calculate the exact stack-size of a function. You could have a look at the assembler code – it will start by pusihing one or two registers onto the stack, then subtract something from the current stack pointer. 8k=8*1024=8192-(8+6)=8178 bytes remaining..
How do you measure stack size?
What is stack size in Ulimit?
By default, the stack size is 1 megabyte for 32-bit processes and 2 megabyte for 64-bit processes (see pthread_attr_setstacksize(3C) ).
How can I increase the stack memory?
The stack for a given process has a limited, fixed size. The reason you can’t add more memory as you (theoretically) describe is because the stack must be contiguous, and it grows toward the heap. So, when the stack reaches the heap, no extension is possible.
What is stack size in C?
Stacks are temporary memory address spaces used to hold arguments and automatic variables over subprogram invocations. The default size of the main stack is about eight megabytes.
What is stack limit?
The stack size limit is the maximum size of the stack for a process, in units of 1024 bytes. The stack is a per-thread resource that has unlimited hard and soft limits.
What is stack size in C++?
CPP
stack empty() | stack size() | |
---|---|---|
1. | It is used to return whether the stack is empty | It is used to return the number of elements in the stack. |
2. | Its syntax is -: empty(); | Its syntax is -: size(); |
3. | Its return type is of boolean. | Its return type is of integer. |
4. | It does not take any parameters. | It does not take any parameters. |
Why is stack size limited?
Because all threads in a process share the same address space, they have to divide it between them. And after the operating system has taken its part, there is “only” 2-3 GB left for an application. And that size is the limit for both the physical and the virtual memory, because there just aren’t any more addresses.
Is .NET full stack?
NET is a full-stack development platform that enables you to build, deploy, and manage applications and services. It provides a comprehensive and flexible technology stack for developing modern web applications and services. ASP.NET Core is a new open-source and cross-platform version of .
Is .NET developer full stack?
A Full-stack . NET Developer is an expert who can build and manage all the stacks of an application meaning Front-end, Back-end, database, version control, server and APIs.
Is stack memory in RAM?
Stack is always in RAM. There is a stack pointer that is kept in a register in CPU that points to the top of stack, i.e., the address of the location at the top of stack.
What is stack vs heap in C#?
Difference between Stack and Heap Memory in C#
Category | Stack Memory | Heap Memory |
---|---|---|
Garbage Collector | – | It is a special thread created by .NET runtime to monitor allocations of heap space. It only collects heap memory since objects are only created in heap |
How you decide the stack size for the function of thread?
It is best to choose as small a stack size as possible and commit the stack that is needed for the thread or fiber to run reliably. Every page that is reserved for the stack cannot be used for any other purpose. A stack is freed when its thread exits. It is not freed if the thread is terminated by another thread.
How do you declare a stack?
To declare Stack in Java, first, start with keyword stack , followed by angle brackets, <> , that contain the data type of the stack elements. Then write the name of the stack and at last, write the keyword new to allocate memory to the newly created stack. The syntax for declaring a Stack in Java is: <stack> .
Получение размера стека в Windows — секреты и преимущества
Заголовок: Как определить и изменить размер стека в операционной системе Windows?
Существует множество параметров, которые определяют производительность и стабильность операционной системы Windows. Один из таких параметров — размер стека. Как определить текущий размер стека и как его изменить в Windows? Эта статья раскроет все нюансы для пользователей операционной системы Windows.
Стек — это область памяти, используемая для хранения временных данных во время работы приложения. Каждый поток в Windows имеет свой собственный стек, который используется для хранения локальных переменных и вызова функций.
По умолчанию размер стека в Windows достаточно большой, чтобы обеспечить нормальное выполнение большинства приложений. Однако иногда может возникнуть необходимость изменить размер стека для определенного приложения или системы целиком.
В этой статье будут представлены различные способы определения текущего размера стека и его настройки в операционной системе Windows. Мы также рассмотрим некоторые практические примеры и советы по изменению размера стека для оптимизации работы приложений.