process of data optimization, we also learned some tips for tuning:
Nginx Configuration tuning:
Worker_processes 4;//opens 4 working processes with no more than the number of cores in the CPU. Nginx non-blocking IO IO multiplexing model for high concurrencyEvents {Worker_connections 1024;//Increase the number of connections per worker process that can accept requestsMulti_accept on;//Open Accept multiple requests}
About the Nginx upstream mentioned above can be Ip_hash, t
Load balancer.
dynamic ratio: is similar to weight, but the weight value varies with continuous monitoring of the server. This is a dynamic load balancing algorithm based on real-time analysis of server performance, such as the number of connections or response times.
Plain Programmer Description:
If you think of Weighted Round Robin where the circular queue was rebuilt with new (dynamic) weights whenever it had been F Ully traversed, you'll be dead-on.
-prefs:root=generalpath=bluetooth Date Time
-prefs:root=generalpath=date_and_time FaceTime
-prefs:root=facetime General
-prefs:root=general Keyboard
-prefs:root=generalpath=keyboard ICloud
-prefs:root=castle ICloud Storage Backup
-prefs:root=castlepath=storage_and_backup International
-prefs:root=generalpath=international location Services
-prefs:root=location_services Music
-prefs:root=music MUSIC Equalizer
-prefs:root=musicp
in IOS5 the following methods are used: "ios5.1+ after this method can not be used, iOS8 jump method has been found below, iOS7 is groping, welcome to give views of the opinion "To open the built-in Settings via URL scheme, the code is as followsThe following is a built-in Settings URL Scheme:About-prefs:root=generalpath=aboutAccessibility-prefs:root=generalpath=accessibilityAirplane Mode On-prefs:root=airplane_modeAuto-lock-prefs:root=generalpath=autolockBrightness-prefs:root=brightnessBluetoot
be particularly useful for situations where the server is in a different logical network. The Equalizer records the response time for each server and selects the fastest one. This is very straightforward, but can cause congestion, because the current response time is not necessarily 1s or 2s.minimum number of connections (Least Connections )--The Least connection equalization algorithm has a data record for each server in the internal load, records t
typesTo jump to a different interface only need to set the Prefs field on the line prefs parameter name cannot be modified field corresponding value can be modifiedAbout-prefs:root=generalpath=aboutAccessibility-prefs:root=generalpath=accessibilityAirplanemodeon-prefs:root=airplane_modeAuto-lock-prefs:root=generalpath=autolockBrightness-prefs:root=brightnessBluetooth-prefs:root=generalpath=bluetoothdate Time-prefs:root=generalpath=date_and_timeFacetime-prefs:root=facetimeGeneral-prefs:root=gene
select the violent sound range in the audio track and then reduce its volume as much as possible.
If you need to retain the required explanatory sound in the same position, you can use [Effects_filters_Graphic Equalizer]In general, the frequency of human voice is different from that of various percussion sounds. At this time, you can try to decrease the value of each frequency to eliminate violent sounds.
Note: When listening, you should increase the
app's access list, path settings-the application name, similar to the gold map off location services, click on the settings to jump to the top of the Allow access to the features page,For this inclusion of the application name, I tried several methods did not succeed, do not know the direct jump to the application of the path to write.Some online paths to open other interfacesAbout-prefs:root=generalpath=aboutaccessibility-prefs:root=generalpath=accessibilityairplane Mode on- prefs:root=airplan
sharedapplication] openurl:[nsurl urlwithstring:@ "Prefs:root=wifi"];Add a URL to info in your project typesAdd URL schemes to PrefsJump to other fields of the interfaceAbout-prefs:root=generalpath=aboutAccessibility-prefs:root=generalpath=accessibilityAirplanemodeon-prefs:root=airplane_modeAuto-lock-prefs:root=generalpath=autolockBrightness-prefs:root=brightnessBluetooth-prefs:root=generalpath=bluetoothdate Time-prefs:root=generalpath=date_and_timeFacetime-prefs:root=facetimeGeneral-prefs:root
general application will not use this level of Api,core Audio provides a higher-level API to the iOS mobile platform to handle real-time audio, which is more compact and efficient.Mid-level layer function is complete, including audio data format conversion, audio file reading and writing, audio stream parsing, plug-in work support, etc.The audio convert Services API is responsible for converting the data formatThe audio File Services API is responsible for reading and writing sound dataAudio Un
replication, Mongos, configuring servers, starting Mongos processes, converting replica sets into shards120th Lesson: MongoDB Shard Part II: Data Shards, a collection of specified shards, detailed examples of shards121th Lesson: MongoDB Shard The third part: block, split block, equalizer, limit the size of the Shard, the impact of the cluster on the data, understand the allocation of MongoDB shard data-a fragmented multi-interval, etc.122th Lesson: T
replication, Mongos, configuring servers, starting Mongos processes, converting replica sets into shards120th Lesson: MongoDB Shard Part II: Data Shards, a collection of specified shards, detailed examples of shards121th Lesson: MongoDB Shard The third part: block, split block, equalizer, limit the size of the Shard, the impact of the cluster on the data, understand the allocation of MongoDB shard data-a fragmented multi-interval, etc.122th Lesson: T
samples directly in the script. This is great for dealing with lightweight effects or making a prototype of a whim, but sometimes you want to be able to write natively compiled results for optimal performance, allowing you to write more heavyweight ideas, such as custom sampled reverb or Multiband equalizer. Unity now also supports customizing the DSP plug-in effect, enabling users to write their own native DSP for the game, You might also b
replication, Mongos, configuring servers, starting Mongos processes, converting replica sets into shards120th Lesson: MongoDB Shard Part II: Data Shards, a collection of specified shards, detailed examples of shards121th Lesson: MongoDB Shard The third part: block, split block, equalizer, limit the size of the Shard, the impact of the cluster on the data, understand the allocation of MongoDB shard data-a fragmented multi-interval, etc.122th Lesson: T
server is divided into a, b two groups, a group of three, Group B three, first to a group from the load balancer smooth offline, B group to provide services, to avoid the server due to the impact of the business.B: The downline process is kicked out of a group a server from the RS pool (LVS,NGINX,HAPROXY,F5, etc.) through a script to avoid a negative equalizer sending the request to a group a server (at this time should be the site traffic, usually n
to the background, thus, the background server connection maintained for a second. Synchronous transmission took the backend server for half an hour, the asynchronous transmission only takes one second, the visibility is greatly optimized.2. In the above example, if the background server for a variety of reasons to restart, upload the file will be a natural interruption, which is very annoying to the user a thing, presumably you have uploaded files to half of the experience interrupted. After u
Description: The following references the contents of the sixth chapter of "Building a highly available Linux server" Fuqin.It is relatively simple to build a high-availability environment for load balancing, mainly to understand the principles. This article describes the pros and cons of three load balancers so that they can be used in real-world production applications by demand.At present, the online environment in the application of more load balancer hardware has F5 big-IP, software has Lvs
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