pga ps4

Instance and a database (data file, control file, and redo log file). The so-called Instance is the medium for user interaction with the database, you can operate a database by connecting to an instance. The instance is composed of a unified memory structure (SGA, PGA, UGA) and a batch of memory resident processes. The instance is identified by ORACLE_SID in the operating system and the INSTANCE_NAME parameter in Oracle. The values of the two instanc

managed and allocated, and 11g can automatically manage SGA, you can also automatically manage PGA and manage these two parts comprehensively to automatically adjust the size of all memory areas. The default value is 0 in 11g. Now let's list the syntax of these parameters. This is a static parameter that needs to be restarted to take effect. Alter systemset memory_max_target = 1000 m scope = spfile;Alter system set memory_target = 1000 m scope = spfi

In Oracle, the memory structure mainly includes two categories: SGA and PGA. SGA represents the system global zone, and PGA represents the program global zone. Oracle memory mainly stores execution processes In Oracle, the memory structure mainly includes two categories: SGA and PGA. SGA represents the system global zone, and

ORACLE Database Performance Optimization-) memory disk1. Memory Structure Optimization Overview 1.1 buffer zone Buffer zones that affect database performance include SGA that can be shared and pga that are private to server processes, sga also includes the Shared Pool, large pool, java pool, data buffer, stream pool, and redo log buffer.1.2 Automatic Memory Management Oracle generally uses automatic memory management to manage system memory. oracle au

bridging sensor signals that require extremely high-precision measurements, many electronic scaling vendors have used an extremely low noise gain level to zoom in on signals from bridging before digitization. The gain-level bandwidth is usually not a big problem when the weights on many electronic scales change slowly. However, the key is that the gain level can be very stable in both temperature and time changes. Most electronic scales only require regular calibration by the manufacturer or us

"Meet the Cursor sharing condition. It can be shared before it is out of age or flushed out of memory. If the same SQL statement is issued for the second time, Shared Cursor is Shared, which is called Soft Parse. Private Cursor corresponds to Shared Cursor. Private Cursor is resident in the PGA space of the Server Process. When we issue an SQL statement or manually create a Cursor, a Private Cursor object is created in the

process that corresponds to a user process Shared service process (multitreaded server process): A service processing corresponds to multiple user processes and takes turns serving the user process. The dedicated server mode means that each time the Oracle server is accessed, the listener of the system receives the access request and then creates a new process for the access to service. So, for each client access, will generate a new process for service, is a similar one-to-one mapping relation

required. Soft parsing also requires scanning the library to cache object handle chains to find reusable parse trees and execution plans, so there is inevitably contention for library cache latch. But compared to hard parsing, the first, soft-analytic library cache latch contention is much less, the library cache latch holding time will be relatively short.SummarizeIf soft parsing is widely used in OLTP-type systems when executing target SQL, the performance and scalability of the system will b

slowly come.Memory structure, the memory structure mainly includes the PGA and SGA,PGA is for the client Access Time service, the SGA is the database operation service, these after the machine power down disappeared.There are also the main 6 process PMON,SMON,DBWR,LGWR,CHPT,ARCN, which are only available when the database is started.The bottom is stored in the persistent media files, have archived logs, da

to mention the book appeared, there are many masters of the speeches. But we do not care about those, according to our own rhythm to write down characteristics, remember the wonderful. First insert the first picture of this series, figure one (absolutely from the official website), see how careful Toad for the picture use, if everyone has their own unique understanding of this figure, then you can skip this note directly, of course, it is also possible to know the new shame, and then Yong ....

while PS4 and Xbox One are always playing in the game field, don't forget that PC games are a force to be reckoned with. At the same time, for PC gamers, there seems to be no need to obsess about how to choose between PS4 and Xbox One, as host players do. But for PC players, how to choose the graphics card is also a learning, any one on the DIY desktop has experience, will have their favorite

converted to Long (Mac/linux is 64 bits) is PS4 special commit 3CBD28D4D6CD1. Looks like only the optimization on PS4, directly stores a pointer to Textureid. If you can do it anywhere, or just PS4 it into a long (intptr_t better)Why do channelassigns and Vertexcomponent pass all the time? It doesn't seem to be useful.The rendering cycle classification is very e

television to get outside information.2, today's consumer consumption of the mainstream content, a large part of the existence of the Internet, and no longer the previous TV channels and television. Traditional TV channels are lagging behind the reception of content.3. As one of the most popular categories of consumer content, the living room games that have tried on traditional television have now hatched a more professional device: consoles such as Xbox and

phones and other devices. Share. For example, your mobile phone can connect your mobile phone to another Sony, or connect to the TV through miracast, or connect to the car audio through the audio link. A unique feature is to connect Z3 to PS4/3 through OTG and Bluetooth, so that the control controllers of PS4 can be on mobile phones. There are many games that you can run up through the controllers, I sudde

/bashtest /Home/yanwenjie/bashtest The-x option returns the command line result after parameter replacement, command replacement, and other command line processing steps. The x option prints + at the beginning of each line (but I don't know why I printed two). This can be customized. It is the value of the built-in shell variable PS4. You can modify this symbol by modifying the PS4 value. For example, the c

April 25 News, Microsoft officially announced on May 21, the next generation of Xbox game Host Conference. Although there are still one months to see its ticket, but based on the previous channels of coverage, we have been able to roughly describe the outline of the mainframe. Below we will summarize this by Netizen called "The Xbox 720" The game machine the general situation. Next generation Xbox Conference held May 21 Hardware: Changed to X86 platform processor, AMD production I

are equal 5, Control command case perform multiple branch detection, such as: Case is in A) echo "a";; b) echo "B";; * echo "other";; Esac for command execution loop For I in 1 2 3 Todo Echo $i Done Alternatively, the loop variable is then taken from all positional arguments in turn For I Todo Echo $i Done Or For ((i=1;i Todo Echo $i Done if, such as: A=7 if ((a>10)); then echo "A>10" Elif ((a>5)); then echo "A>5" Else echo "A Fi while, such as: A=1 while ((A Todo Echo $a ((a++)) Done until, su

Each time you modify these blocks in cachebuffer, you must first generate the corresponding changevector in PGA, and then the serverprocess from PGAcopy to SGAREDOLOG Each time you modify these blocks in the cache buffer, you must first generate the corresponding change vector in the PGA, and then copy the data from the server process to the SGA REDO LOG The redo log file is composed of redo records (als

statements. The data dictinary cache holds the most recently used database dictionary information. The data ditinary CacheIs also known as the row cache because it holds data as rows instead of buffers (which hold entire blocks of data ). Program global area:The program global area (PGA) is the area in the memory that contains the data and process information for one process, and this area is non-shared memory. The contents of the

AdvisorMemory: The physical zone loaded on the physical memory. One part is called SGA and the other part is called the original process. Key database files: Database Control Files, data files, and redoOther key datafiles: backup file, TRC file, spfile Shared Pool: parses SQL statements and stores SQL statements.Database Buffer: data block bufferJava pool: required by JVM. External stored procedure is called.Large pool: Backup RecoveryStream poll: Advanced Replication (available in Oracle 10)Pg