VSync is the abbreviation of the vertical period (Vertical synchronization). The main idea is to set your FPS and display refresh rate up to the same time. The aim is to avoid a phenomenon called "tearing". I will describe these details again below.Each CRT display has its own refresh rate. The unit is Hz. The value is the number of times the monitor updates the screen per second. Different displays support
Eventthread distribution to vsync
As mentioned above, eventthread will distribute them to interested registrants after receiving vsync. the distribution process is completed in its thread loop threadloop function. You can also read the following section to learn about how registrants are notified about vsync and what registrants are interested in the system. Then
Processing of 1.1.1 VSync signal
After the analysis of the previous section, we now understand how the system generates VSYNC signals through hardware devices or software simulations, and also understands its flow. VSync will eventually be distributed to listeners by Eventthread::threadloop (), MessageQueue in the current version.
MessageQueue through the estab
Generation and treatment of 1.1 VSync
In the previous section Projectbutter we learned about the new features in the Android 4.1 display system, one of which is to join the VSync synchronization. From the theoretical point of view, we analyze the necessity and operation mechanism of adopting this mechanism, then how to implement the Surfaceflinger concretely?
Let's think about what you should consider:
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Vsync: vertical synchronization, which is used to synchronize the number of frames with the display. simply put, the rendering process of vsync is enabled. The number of frames does not exceed the number of frames on the monitor, and a synchronization will be executed. the place for synchronization is where the last line of scanning is completed and the first lin
Tag: Star remove generates ref rate mask turned CTO disableThe Hwcomposer module generates a VSYNC signal to be distributed before it can be sent to the module concerned with the VSync event. The VSYNC signal distribution process is hwcomposer->surfaceflinger->dispsync->dispsyncsource-> each specific module. The following is a detailed analysis of the process.In
the role of VSync and HSync and the relationship between themVSYNC and the HSYNC and the relationship between them .VSYNC and the HSYNC is whatVsync:vertical synchronization, which is synchronized with the number of frames on the monitor.In a nutshell, the vsync rendering process is enabled, the number of frames does not exceed the number of frames in the display
Today, we have debugged the 4 K (3840x1920) vsync signal (clock at 297 MHz) in the 170 MHz clock domain, and found that the output signal jitter is particularly severe. It was later discovered that this was caused by different clock domains. Signals in the fast clock domain may not be collected when entering the slow clock domain. So I change the high level of a clock to the high level of three clocks, so that the slow clock domain can certainly be co
Concept
Vsync,vertical Synchronization
Refresh Rate Screen A second number of refreshes, determined by the hardware, unit Hz, typically 60Hz
Frame rate GPU Draws the number of frames in one second, unit fps (Frames per second)
Specific explanationsThe GPU obtains the graphics data to draw, the hardware will draw the good data to present on the screen, in order to make the picture on the screen smooth display, needs to maintain fr
One server installs zookeeper and starts, then installs monitor dubbo-monitor-simple-2.8.3 on another server to unzip the installationModifying a configuration fileDubbo.container=log4j,spring,registry,jettyDubbo.application.name=simple-monitorDubbo.application.owner=#dubbo. registry.address=multicast://224.5.6.7:1234dubbo.registry.address=zookeeper://113.52.182.149:54111?backup=113.52.182.150:54111#dubbo.
Real Spy Monitor is a software that monitors the Internet and personal computers to safeguard their security. including keystrokes, Web sites, Windows switches, program execution, screen scanning, and access to files are the objects of their monitoring.1. Add the Use passwordBefore you use real Spy Monitor to monitor your system, you need to set up some of the fo
Write a small monitor using Python and write a monitor using Python
1. Getting Started
First of all, you have to use a C/C ++, java, Javascript, and so on. Programming is difficult, and python with some programming experience is relatively simple.
1.1 Hello World!
Python installation is relatively simple. You can download the installation package from the official website and proceed to the next step. Becau
[Import and export configuration]
Once you have configured a filter, you can use the savefilters menu item in the Tools menu to save it. Process Monitor adds the filter you saved to the load filter menu for convenient access. You can also select "organize filters" in the "Tools" menu to open the "manage filters" dialog box to change the display sequence of filters. You can use the manage filter dialog box to rename the saved filter, and export the f
"Import and Export Configuration"Once you have configured a filter, you can save it using the Save Filter (savefilters) menu item in the Tools menu. Process Monitor joins your saved filters to the Read Filter menu, which makes it easy for you to access them. You can also select Manage Filters (Organize Filters) from the Tools menu to open the Manage Filter dialog box to change the order in which the filters are displayed. You can use the Manage Filter
JAVA -- multi-thread programming synchronous "monitor" (3), multi-thread programming monitor
Reprinted from:
Http://www.programcreek.com/2011/12/monitors-java-synchronization-mechanism/
Http://ifeve.com/monitors-java-synchronization-mechanism/
The monitor is an important basic concept for implementing synchronization in the operating system. It is
Synchronous monitor: Synchronous Code block, synchronous method, and synchronous Monitor
If multiple threads access shared resources, the shared resources may be insecure when one thread does not process the business and another thread enters.
Daily example: A and B have the same bank account, A uses the passbook to get the money at the counter, and B uses the cash machine to get the money. There are two k
Use Opserver to monitor your ASP. NET project series (3. Monitor your server status), opserverasp.net
Preface
I have had two articles on how to monitor ASP. NET core projects. If you are interested, please refer to them.
Cross-platform real-time performance monitoring based on ASP. NET Core
Cross-platform real-time performance monitoring based on ASP. NET Cor
Use of mysql monitor MONyog and mysql monitor monyog
MONyog is a commercial paid software, but you can find the cracked version. I use the 4.72 cracked version.
1.
Fig 1.1
In the server settings, 1.1. Enable sniffing in Sniffer Settings? Select YES to enable Sniffer, and then setFilteringOptions,The Long Running Query Options Option; in the Long Running Query OptionsIn Actionto be taken, you can select n
Original: Use Opserver to monitor your ASP. NET Project Series (third, monitor your server status)before wordsThere have been 2 articles on how to monitor the ASP. NET Core project.Today we mainly introduce how to use Opserver to monitor the state of our servers.The Opserver feature is actually very powerful and he can
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