best in memory database

Memory overflow is the memory you want to allocate more than the system can give you, the system is not satisfied Demand, resulting in an overflow. A ================================================================ memory leak is when you use the system to allocate memory for use (new), but it is not returned when i

View free memory/physical memory usage/remaining memory in a Linux system There are many ways to view system memory, but the main is to use the top command and free command How do you see the results when you execute the top command? Here is a description: mem:666666k Total, 55555k used, does not represent your app

runtime memory, and all power-off data disappears. External memory: Mobile Phone memory (TF card), equivalent to D, E, F and other hard disks. Choose ------------------------------------------ read mobile phone memory and external memory in android development. Android read

Note: This article is excerpted from the Internet. For future convenience, this article is dedicated. Supports originality. I. In c, there are several storage areas1. Stack-automatically allocated and released by the compiler2. Heap-generally released by the programmer. If the programmer does not release the heap, it may be recycled by the OS at the end of the program.3. in the global zone (static zone), global variables and static variables are stored in one partition, and initialized global v

nbsp JVM Memory Management--computer memory and Java memory Components The JVM has always been very good for us to manage memory, it is a wife: "to the Government (memory space) to the site, but also effective to their own three-acre management." "But sometimes, we do no

Some of the theoretical aspects of performance optimization, mainly to review, with the theory, Comrade Xiaoping said again, practice is the only standard to test the truth, for memory leaks, now through the Android Studio self-brought tool memory monitor detected. The importance of performance optimization does not need to be stressed, but to emphasize that I am not an old driver, hey! Please open your eye

If you are using a Windows operating system, you may encounter the following error message: 「 "0x ????????" The memory of the instruction reference "0x00000000". The memory cannot be "read" or "written" and the application is closed. If you ask some experts, the answer is often "Windows is so unstable" and so on. In fact, this error is not necessarily caused by Windows instability. This article briefly anal

SQLite uses dynamic memory allocations to obtain the memory needed for various objects, such as database connections and SQL preprocessing statements, to establish the memory cache for database files, and to save query results. We've done a lot of work to make SQLite's dynam

Heap memory is divided by life cycle, and partitioning can improve the efficiency of JVM garbage collection and better recycle in order to better distribute.If memory cannot be allocated in the heap and the heap can no longer be expanded, an OutOfMemoryError exception will be thrown. http://blog.csdn.net/qq_17612199/article/details/52316719 Heapbytebuffer and Directbytebuffer, in principle, the former can

-partition instance.　　Figure 1-DB2 Memory structure DB2 splits and manages memory within 4 different memory sets. These 4 sets of memory are: Instance shared memory (instance shared memories) Data