applications and you'll notice a button to delete the application. Remove apps that are rarely used or don't want to be reused.
Delete Other Items
In fact, not all of the options appear in the dosage list.
Do you know what the color graphics on the iphone show on itunes mean?
In general, one of the most space-occupying categories is "other", so what exactly is this? This includes caching, backups, partial downloads, and some data from iOS 7 built-in a
[TechTarget China original] Dynamic memory (Dynamic memory) is Microsoft's effort to address common problems in Virtualization: how to effectively allocate memory to virtual machines that do not always need it.
Memory has always been the first key resource to be used up. As a result, a lack of
Virtual Memory Management [Switch], virtual memory
Modern Operating systems generally use Virtual Memory Management (vmmemory Management) mechanisms, which requires support from MMU (Memory Management Unit) in the processor. The concepts of PA and VA are introduced first.1. PA (Physical Address) --- Physical Address
If
Reprint Please specify source:http://blog.csdn.net/ns_code/article/details/17377197main memory vs. working memoryThe main goal of the Java memory model is to define the access rules for each variable in the program, that is, the underlying details of storing variables in the virtual machine into memory and removing variables from
Java multi-thread interpretation II (memory), java multi-thread interpretation of memory
Thread Memory Structure
I. Primary memory and working memory
1. The main objective of the Java memory model is to define access rules for var
Memory statistics and Memory leakage problems in linux are located in product development. By measuring the total memory consumption of the current system, you can accurately evaluate the total memory required by the product, in this way, the appropriate memory chip and size
Note: The android underlying malloc is swapped for mmap to get memory, the acquired memory can be added to the tag, so that the meminfo for analysis, you can view the memory of the tag separately for analysis.One. Mmap system call1. Mmap system callMmap maps a file or other object into memory. Files are mapped to multi
Note: I have benefited a lot from studying C ++ over this period of time. I would like to thank you for your support and enthusiastic answers, especially those who are serious about it. Due to my limited ability, I do not like to write anything and post it. Even if it is a problem, I only need to search and solve it. I recently read the inside c ++ object model and found it very difficult. Therefore, I think it is necessary to have a deep understanding of dynamic
IOS app memory analysis routines and iosapp memory routinesIOS app Memory analysis routines: 2 ways to view app Memory usage in Xcode: 1. Debug Memory in navigator
This method is the easiest and most effective way to view Memory.
Analysis of reference counting memory management mechanism in iOS and ios Memory Management
In iOS, reference counting is the memory management method. Although the iOS5 version already supports the automatic reference counting management mode, understanding how it runs helps us understand how the program runs, helps debug programs.
The
Try to talk about static methods and static properties from the point of view of the JVM's memory management principles, please correct me where it is wrong. (joezheng123.javaeye.com/blog/264695)The JVM's memory is divided into two parts: Stack and heap:Stack (stack) is the memory instruction area of the JVM. Stack management is simple, push a certain length byte
Virtual memory is a memory control program, it is responsible for the system running all the programs of the cache, if it is currently in use, the program's data directly cached in memory, if a long time did not operate but also did not close the program is stored on the hard disk, No matter where the virtual memory is
Reprinted: differences between memory leakage and memory overflow;
Memory overflow out of memory means that the program does not have enough memory space to use when applying for memory. For example, if an integer is applied, howe
After the Linux kernel is loaded into memory by bootloader, the CPU first executes functions such as Start_of_setup functions in Head.s, and then jumps to Main.c,main to first execute Detect_memory function to probe the memory;int detect_memory (void) {int err = -1;if (detect_memory_e820 () > 0) Err = 0;if (!detect_memory_e801 ()) Err = 0;if (!detect _memory_88 ()) Err = 0;return err;}The Linux kernel obtai
Java lock (1) Memory Model and java lock Memory Model
To understand the Java lock mechanism, thread security issues, and data consistency problems, it is necessary to understand the memory model and the Mechanism mechanism, and these problems will be solved.
I. Primary memory and working
When reading the OSE documentation (OSE architecture User's Guide), I noticed a Summary of the memory fragmentation, which is very incisive. The excerpt is as follows:
The original text is as follows (see the link after the original text. A man has already translated it into Chinese, but he does not know where the original text comes from)
Why is memory fragmentation important
In embedded systems developm
Operating system learning notes-memory management, learning notes Memory Management
The content of this article is as follows:
1. Purpose of Memory Management
2. core tasks of Memory Management
3. Various memory management methods:
3.1 partition management.
3.2 Page Manageme
JVM memory management, garbage collection, and jvm Memory Management
I. JVM Memory Structure
The Java Virtual Machine divides the memory into several different management zones. These regions have their own purposes. Based on their characteristics, they undertake different tasks and use different algorithms for garbage
Linux memory management series 4: linux memory management series
The previous three sections focus on how to allocate kernel space memory in the kernel. The memory of the user space of the process is also controlled by the kernel. The address memory of the user space is call
Every process in a multitasking operating system runs in its own memory sandbox. This sandbox is virtual address space ).1 32-bit virtual memory Layout
In 32-Bit mode, the virtual address space is always a 4 GB memory address block. These virtual addresses are mapped to the physical memory through the page table, which
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