PHP memcached Common Instruction collation

Source: Internet
Author: User
Tags key memcached memory usage php memcached

-P Listening Port
The IP address of the-l connection, the default is native
-D Start memcached service
-D Restart Restart memcached service
-D Stopshutdown shut down the running memcached service
-D Install installation memcached service
-d Uninstall Uninstall memcached service
-U Run as (only valid when run as root)
-m maximum memory usage, in MB. Default 64MB

-Returns an error when M memory is exhausted instead of deleting the item
-C Maximum Simultaneous connection number, default is 1024
-F Block size growth factor, default is 1.25
-N Minimum allocation space, key+value+flags default is 48
-H Display Help

Basic commands for memcached (when memcached is started for commands that relate to the data that Memcached manages and its own running state):

Command

Description

Example

Get

Reads a value

Get MyKey

Set

Set a key unconditionally

Set MyKey 0 60 5

Add

ADD a new key

Add Newkey 0 60 5

Replace

Overwrite existing Key

Replace key 0 60 5

Append

Append data to existing key

Append key 0 60 15

Prepend

Prepend data to existing key

Prepend Key 0 60 15

incr

Increments numerical key value by given number

INCR MyKey 2

Decr

Decrements numerical key value by given number

DECR MyKey 5

Delete

Deletes an existing key

Delete MyKey

Flush_all

Invalidate specific items immediately

Flush_all

Invalidate all items in n seconds

Flush_all 900

Stats

Prints General statistics

Stats

Prints Memory statistics

Stats Slabs

Prints Memory statistics

Stats malloc

Print Higher level allocation statistics

Stats items

Stats Detail

Stats sizes

Resets statistics

Stats Reset

Version

Prints server version.

Version

Verbosity

Increases log level

Verbosity

Quit

Terminate Telnet session

Quit

Keywords for viewing information in Chinese and English tables

Pid

Memcache The process ID of the server

Uptime

Number of seconds the server has been running

Time

Server's current UNIX timestamp

Version

Memcache version

Pointer_size

The current operating system pointer size (32-bit system is typically 32bit)

Rusage_user

Cumulative user time for the process

Rusage_system

Cumulative system time of the process

Curr_items

The number of items currently stored by the server

Total_items

Total number of items stored since server startup

bytes

The number of bytes consumed by the current server storage items

Curr_connections

The number of connections currently open

Total_connections

Number of connections that have been opened since the server was started

Connection_structures

Number of connection constructs that the server assigns

Cmd_get

Get command (gets) the total number of requests

Cmd_set

Set command (save) number of total requests

Get_hits

Total Hit Count

Get_misses

Total missed Hits

Evictions

Number of items deleted to get free memory (the space allocated to memcache needs to be removed from the old items to get space allocated to new items)

Bytes_read

Total Read bytes (number of bytes requested)

Bytes_written

Total Bytes sent (result bytes)

Limit_maxbytes

Size of memory allocated to Memcache (bytes)

Threads

Current number of threads



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