fios optimizer

. With an instance of Disklrucache.editor, call its Newoutputstream () method to create an output stream and pass it into Downloadurltostream () to download and write to the cache.Note that the Newoutputstream () method receives an index parameter, because the previous specified at the time of setting the Valuecount is 1, so here Index 0 can be. After the write operation is done, we also need to call the commit () method to commit for the write to take effect, and the Abort () method to abort th

does maketable do, as follows: Private hashmapentryWe clearly see that the new operation is done here and recreating the object is expensive.So arraymap, look at it. If the capacity is insufficient if (msize >= mhashes.length) { final int n = msize >= (base_size*2)? (Msize+ (msize>>1)) : (msize >= base_size?) (base_size*2): base_size); if (DEBUG) log.d (TAG, "put:grow from" + Mhashes.length + "to" + N); Final int[] ohashes = mhashes;

2 files in the Ucdetector_reports folderThe results of the operation are also shown in Eclipse's problem.:(iv) ScreeningTo make it easy to find the filter categories for the results in problemSelect inverted triangle → pop-up window →group By→type:(v) OptimizationFollow the prompts to find the corresponding class to deleteFor example, in the class baseactivity:Double-click the entry in the problem to enter the appropriate class:(vi) Closureplug-in use to note :Reflection , configuration injecti

=null// execution time consuming memory operation, or call time consuming memory method ... } At this point it is necessary to assign the OBJ value to null to release the reference to the object as soon as possible. Try to cache frequently used objectsAs much as possible to cache objects that are used frequently, you can use arrays, or hashmap containers for caching, but this can cause the system to consume too much cache and degrade performance, and it is recommended to use some thir

1, online JSON check tool: www.bejson.com2, Message.what uses static quantities on the handler of the message that is commonly used in the. private static final int msg_successs=0x111;message.what=msg_success;3,message transfer Optimization, object New way.Normal: Message msg=new message ();handler.sendmessage (msg);Modified to:Message msg = Handler.obtainmessage ();handler.sendmessage (msg);Advantages:returns a new message instance from the entire Messge pool, which is used in many cases becaus

-filter>activity>This is not finished, because we set up a SplashActivity background map, which will inevitably lead to transitions drawn, so we set the theme back to the original before it initializes:@Override protectedvoidonCreate(Bundle savedInstanceState) { setTheme(R.style.AppTheme); super.onCreate(savedInstanceState); setContentView(R.layout.splash_activity);Above.Now you will find that even if the boot time is longer, it will not appear 白屏 .Reference: Htt

1, cd/usr/local/directadmin/custombuild into the Dircetadmin installation directory2, vi options.conf Edit configuration fileDefault_php=5php5_ver=5.2Php5_cli=yesPhp5_cgi=noPhp6_cli=noPhp6_cgi=noPhp_ini=no#Possible values-recommended or Distphp_ini_type=recommendedIoncube=yeszend=Yes3./build all n perform automatic installation of commandsThis article is from the "Linux" blog, so be sure to keep this source http://study89757.blog.51cto.com/8683527/1708031DirectAdmin Installing Zend

Catalyst Optimizer, catalystoptimizer For more information, see ChenZhongPu's Gitbook:Https://www.gitbook.com/book/chenzhongpu/bigdatanotes/details The Catalyst of Spark SQL is easy to expand. It also supports rule-based and cost-based optimization methods. Inside it, Catalyst contains a common library that represents the tree and operation tree rules. Under this framework, databases for link query processing (such as expressions and logical query pl

. Rerun the transaction. 4. Start SQL Server Profiler and select the following four Events: Run the above deadlock experiment again and you can see the deadlock diagram as follows: It is very interesting that the second execution of the above statement will not lead to deadlocks! This is because in the two processes, SQL Server will intelligently identify the update statement that does not need to be done, so it will not obtain the exclusive lock, of course, it will not deadlock. The SQL Serve

Record the Zend debugger configuration process and hope to help you browse this article. Because Zend optimizer was installed in the PHP extension before, this time in order to be able to use development toolsCodeDebugging,Zend debugger needs to be extended. The problem is that the two extensions are supported at the same time. I will record how to install the two Zend extensions at the same time. If you install one separately, there are many Google

When installing X-space 3.0/supesite 5.5, the system prompts "Attention: Zend optimizer not installed"

Ask a php5.4 to install Zend Optimizer problem

developer of the product you want to use is not so avant-garde, continue reading.At present, all PHP used in IIS In this era adopts the FastCGI method. FastCGI instilled in everyone the concept of using PHP of the non-thread-safe (SCN) version. If zendoptimizer 3.3.3 and PHP 5.2.x are added, the system crashes again because a thread-safe version is required for zendoptimizer.For now, the latest qualified is the php-5.2.17-Win32-VC6-x86, which is divided into MSI and zip. According to the usage

pixels, the following is the design:Start menu with Start button and Exit buttonGame interface, change the background image and voice control button, Weibo share button, etc.Five, the team member contribution points:Although our team of six people, looks like a bit more. But compared to the amount of work we do, in fact, people are not much, here the contribution of the work according to everyone's workload, although everyone's ability is impeccable. Sun Hailin: 23

resources in the application can be directly used, specific, you can go to the corresponding folder in ANDROID-SDK to see. For example: can enter the $android-sdk$\platforms\android-8\data\res, inside of system resources is sweeping.Developers need to spend some time familiarizing themselves with these resources, especially the picture resources and various style resources, so that they can think of resources and use them directly during the development process. Optimization Series r

are deleted directly, and memory is recycled, as follows:Aged3. Eden is full againWhen the Eden Zone is allocated again, the small GC executes, the referenced objects are moved to the Survivor (survivor) area, and objects that refer to unreachable are removed from the garbage collection following Eden's emptying.It is important to note that this time the referenced object was moved to the survivor area of S1 .Also, the S0 region executes a small GC, moving objects that are also referenced to th

能回收很少的对象，一般使用的是标记整理或者标记清除算法In the above way, the whole process of GC has reached the most efficient state.It is important to note the use of replication algorithms in the generational recovery algorithm.The previously mentioned replication algorithm is to divide the memory into two, but in the generational recycling is not so, but according to Eden:survivor A:survivor b= 8:1:1, the specific process is (simplified version):1.新创建一个对象，默认是分在Eden区域，当Eden区域内存不够的时候，会触发一次Minor GC(新生代回收)，这次回收将存活的对象放到Surv

current task. So, if we want to not let the system kill our app, we can optimize it from the process level, memory consumption and so on. ConclusionThis article plus gc those things, we talked about two of theoretical knowledge, I believe you have a general understanding of the memory management of Android, the following will introduce some memory analysis tools and use, the actual to explain how to analyze memory problems.Anly_junLinks: Https://www.jianshu.com/p/4ad716c72c12Sourc

-flag Jstack: View information about the line stacks of the specified Java process;Jstack [-l] Jstack-f [-M] [-l] -l:long listings, additional lock information is displayed, so a deadlock occurs often with this option;-M: Mixed mode, both output Java stack information, also output C + + stack information;-F: When using "Jstack-l PID" no response, you can use-f force output information;Jstat: OutputStatistics for the specified Java processJstat-help|-optionsJstat-Jstat-options-class:class Loader-

blocks in the current query cache. These state variables allow you to understand the health of the query cache, allowing you to adjust the values of the corresponding system parameters.Limitations of Query Cache1. The previous version of 5.1.17 cannot cache the query of the variable, but starting with the 5.1.17 version, query cache has started to support the binding variable of query;2. External query SQL in all subqueries cannot be cache, only caches the final result set;3. Query in Proc