python memory usage

For linux/ubuntu free, check the memory usage. For details, refer to my memory usage: $ free-mtotal used free shared buffers cachedMem: 1908 1844 64 0 56 689-/+ buffers/cache: 1098 810 Swap: 3904 0 3904 www.2cto.com at the beginning, I was shocked. I opened a virtual machine and allocated MB of

command root 4238 0.0 0.0 52396 352 pts/0 S. /prog VSZ refers to the size of the process memory space, which is 52366kb; RSS refers to the memory size residing in the physical memory, which is 352KB. Generally, the system administrator knows that VSZ does not represent the memory actually used by the process, because

Adjust and optimize redis memory usageAdjust and optimize redis memory usage 1. View Current memory usage [Root @ redis01 ~] # Redis-cli info # Serverredis_version: 2.8.19redis _ git_sha1: zookeeper redis_git_dirty: 0redis_build_id: c0359e7aa4248aa2redis_mode: standaloneos:

as if, in the object reference graph, from any object, if you want to access object Y, you must pass object x, then object x is in the dominate position of object Y.As you can see, the concept of dominating the tree is actually associated with the previous retained size. The retained size of an object is the sum of the shallow size starting from this object and all the tree child nodes that begin with it.Also, all root nodes must be the top node in the tree, not necessarily.Heap dump file (heap

PrefaceIn MySQL, the thread-exclusive memory is mainly used for each client connection thread to store exclusive data for various operations, such as thread stack information, packet sorting operations, data read/write buffering, result set staging, and most of which can control memory usage through relevant parameters.thread stack information using

Reference blog:View Linux Process Memory usageYou can view the contents of the%mem directly after you use the top command. You can choose to view by process or by user, if you want to see the process memory usage of the Oracle user, you can use the following command:(1) TopThe top command is a common performance analysis tool under Linux that shows the resource

Linux memory usage: 90%. Is it normal? -- Linux general technology-Linux technology and application information. For details, refer to the following section. Linux/Unix is different from windows in terms of memory management. Its management method is to make full use of the system memory, while windows uses a certain a

In actual encoding, to view and operate the memory, many programmers first think of the PHP script memory function PHPmemory_get_usage (). below is the PHP memory_get_usage () Usage example: The code is as follows: Echo memory_get_usage (),' '; // 143952 $ Tmp = str_repeat ('http: // blog.micxp.com/', 4000 ); Echo memory_get_usage (),' '; // 232048 Unse

When linux memory is full or the usage mechanism is used up, it is often said that wdcp occupies a lot of memory, or the memory is used up, will it be suspended? You can say, don't worry, there will be no problem when it is used up, because it is useless or useless at all. In rare cases, it is actually used up. There m

This article describes how to obtain the memory and CPU usage information of a single process. Memory consumption: VSS/RSS/PSS/USS Terms• VSS-virtual set size virtual memory consumption (including memory occupied by shared libraries)• RSS-resident set size actually uses phys

The PHP built-in function memory_get_usage () returns the amount of memory currently allocated to the PHP script in bytes (byte). In the actual development of the web, these functions are very useful, and we can use it to debug PHP code performance.The Memory_get_usage () function returns memory usage, the Memory_get_peak_usage () function returns the peak

The PHP built-in function memory_get_usage () returns the amount of memory currently allocated to the PHP script in bytes (byte). In the actual development of the web, these functions are very useful, and we can use it to debug PHP code performance.The Memory_get_usage () function returns memory usage, the Memory_get_peak_usage () function returns the peak

Use 'top-I 'to check how many processes are Running. The system may have memory or I/O bottlenecks. Use free to check whether the system memory usage is high, use iostat to check the I/O load... Another method is ps-ef | sort-k7, which sorts processes by running time and determines which process consumes the most cpu time. Top:Main ParametersD: Specify the update

When the number of concurrent TCP connections for a server is timed at 100,000, we are interested in how much memory a TCP connection consumes on the operating system kernel. The socket programming method provides interfaces such as SO_SNDBUF, SO_RCVBUF to set the read/write cache for the connection, and Linux also provides the following system-level configuration to set up the TCP memory

1. Use Android API functions to view1.1 activitymanager view available memory.Activitymanager. memoryinfo outinfo = new activitymanager. memoryinfo ();Am. getmemoryinfo (outinfo );Outinfo. availmem is available idle memory.1.2. Android. OS. debug queries memory usage information of a single process, such as PSS, VSS, and USS.Memoryinfo [] memoryinfoarray = aM. ge

You can view the contents of the%mem directly after you use the top command. You can choose to view by process or by user, if you want to see the process memory usage of the Oracle user, you can use the following command:(1) TopThe top command is a common performance analysis tool under Linux that shows the resource usage of individual processes in the system in

. Copy Code code as follows: $ free-m total used free shared buffers cached mem:64544 64279 265 0 134 60413 -/+ buffers/cache:3731 60813 swap:31999 0 31999 Memory is about the same, basically are cached, that is, file system caching. MongoDB is the mmap way for the operating system to handle persistence and caching. Each data file is mapped directly to a virtual memory address. If this page is n

the results of free. Copy Code code as follows: $ free-m Total used free shared buffers Cached mem:64544 64279 265 0 134 60413 -/+ buffers/cache:3731 60813 swap:31999 0 31999 Memory is about the same, basically are cached, that is, file system caching. MongoDB is the mmap way for the operating system to handle persistence and caching. Each data file is mapped directly to a virtual