aspire 722

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Slab allocation mechanism of nginx principle analysis

space, because 5 is within the [1~8] interval, so slot[0] is responsible for the allocation of the memory, but the limit of the interval [1~8] is 8, so even if the application 5 bytes, but still allocate 8 bytes to the application process. And so on: If the application is 12 bytes, 12 is in the interval [9~16], the upper limit is 16, so the slot[1] allocates 16 bytes to the application process, if the application 50 bytes, 50 is in the interval [33~64] between the upper limit of 64, so by slot[

Reproduced Slab allocation mechanism of nginx principle analysis

upper limit of each interval (8, 16, 32, 64, 128, 256, 512, 1024) to facilitate the allocation and recycling of memory blocks (block). For example, if the application process requests 5 bytes of space, because 5 is within the [1~8] interval, so slot[0] is responsible for the allocation of the memory, but the limit of the interval [1~8] is 8, so even if the application 5 bytes, but still allocate 8 bytes to the application process. And so on: If the application is 12 bytes, 12 is in the interval

Compilation of common original code stream players for video conferences

frames and image quality problems. This feature is often used to diagnose the coordination between the decoder and the master. This step involves a lot of issues, and the following lists the issues that need attention: a) for H.261, H.263 and other code streams, You need to note the splicing of sbit and ebit, for H.263 + code streams, simply follow the specifications, for H. 264 code stream. Add 0 x, 0 x, 0x00, and 0x00 before each nal unit to help decoder decoding. Note that H. 264 The bitstre

A Method for C ++ iterator to use streams and Standard Functions

For the iterator, there is another way to use streams and standard functions. The main point of understanding is to treat the input/output stream as a container. Therefore, any algorithm that accepts the iterator parameters can work with the stream. Sample Code: #include #include #include #include #include using namespace std; void Display(vector int main() { // Seed the random number generator srandom( time(NULL) ); // Construct vector and fill with random integer values vector f

View Java thread calls and deadlocks in jstack

Command: jstack-l PID If there is a deadlock in the Wired path, It is shown as follows: "Idleremover" daemon PRIO = 10 tid = 0x00007f6b2c148800 nid = 0x11d7 waiting on condition [0x00007f6b222e1000] Java. Lang. thread. State: timed_waiting (Parking) At sun. Misc. Unsafe. Park (native method) -Parking to wait for At java. util. Concurrent. locks. locksupport. parknanos (locksupport. Java: 226) At java. util. Concurrent. locks. abstractqueuedsynchronizer $ conditionobject. Await (abstractqueueds

Spring no adapter for Handler exception

(HttpServlet.java:722) 2. When using the HTTP service provided by httpinvokerserviceexporter, you must configure it in the-servlet. xml file. javax.servlet.ServletException: No adapter for handler [org.springframework.remoting.httpinvoker.HttpInvokerServiceExporter@45378f]: Does your handler implement a supported interface like Controller?org.springframework.web.servlet.DispatcherServlet.getHandlerAdapter(DispatcherServlet.java:982)org.springframewo

NetBeans Execution Project Error

(thread.java:722) caused By:java.lang.IllegalArgumentException:The servlets Named [CurrentUser] and [CurrentUser] was both mapped to the Url-pattern [/currentuser] which was not permittedat Org.apach E.catalina.deploy.webxml.addservletmapping (webxml.java:335) at Org.apache.catalina.deploy.WebXml.merge ( webxml.java:1691) at Org.apache.catalina.startup.ContextConfig.webConfig (contextconfig.java:1331) at Org.apache.catalina.startup.ContextConfig.conf

About the "Could not open ServletContext resource [/web-inf/applicationcontext.xml]" solution

) at Org.apache.catalina.startup.HostConfig.deployDirectory (hostconfig.java:1095) at Org.apache.catalina.startup.hostconfig$deploydirectory.Run (hostconfig.java:1617) at Java.util.concurrent.executors$runnableadapter.call (executors.java:471) at Java.util.concurrent.futuretask$sync.innerrun (futuretask.java:334) at Java.util.concurrent.FutureTask.run ( futuretask.java:166) at Java.util.concurrent.ThreadPoolExecutor.runWorker (threadpoolexecutor.java:1110) at Java.util.concurrent.threadpoolexecu

Clustered index: SQL Server index Level 3

. Salesorderdetail_index ')) DROP TABLE dbo. Salesorderdetail_index; GO IF EXISTS (SELECT * from sys.tables #160; WHERE object_id = object_id (' dbo. Salesorderdetail_noindex ')) DROP TABLE dbo. Salesorderdetail_noindex; GO SELECT * into dbo. Salesorderdetail_index from Sales.SalesOrderDetail; SELECT * into dbo. Salesorderdetail_noindex from Sales.SalesOrderDetail; GO CREATE CLUSTERED INDEX Ix_salesorderdetail ON dbo. Salesorderdetail_index (SalesOrderID, Salesorderdetailid) GO Listing 1: Cr

Idea when you run a Web project, Tip java.lang.ClassNotFoundException:com.mysql.jdbc.Driver Workaround

Org.apache.catalina.core.StandardHostValve.invoke (standardhostvalve.java:127)At Org.apache.catalina.valves.ErrorReportValve.invoke (errorreportvalve.java:102)At Org.apache.catalina.core.StandardEngineValve.invoke (standardenginevalve.java:109)At Org.apache.catalina.connector.CoyoteAdapter.service (coyoteadapter.java:298)At Org.apache.coyote.http11.Http11Processor.process (http11processor.java:859)At Org.apache.coyote.http11.http11protocol$http11connectionhandler.process (http11protocol.java:58

Install the 2D pass game in Ubuntu

think that the gameplay of a game is the most important, and the picture is less important than the operation. Ubuntu Installation Open the terminal: 1. (See) sudo apt-add-repository ppa: littel-jo/frogatto Www_linuxidc_com @ linuxidc-Aspire-3680 :~ $ Sudo apt-add-repository ppa: littel-jo/frogatto[Sudo] password for www_linuxidc_com:Executing: gpg -- ignore-time-conflict -- no-options -- no-default-keyring -- secret-keyring/etc/apt/secring. gpg

Math Learning (turn to know)

, so you need to have a general goal and plan, reasonable arrangement of time.1.1 Your goal is to be proficient in mathematics, to study mathematics, to earn a living in mathematics, you may aspire to master algebraic geometry, or to be proficient in frontier physics. Then you need to lay a solid foundation of modern algebra, geometry, and analysis, and you need to prepare a lot of time and energy, with unwavering determination. (Requirements: Profici

Eight levels of programmers, what level are you in?

Have you ever met the classic interview question, "Have you foreseen your position in 5 years?" ”。 Every time someone asks, I think of an album that Twisted Sister the band has been releasing since 1984. Of course it's rock and roll, and it's a rock-and-roll-star programmer. This question is usually not answered in a positive way-like the moan cliché of the interview, "What's your biggest drawback?" ”。 Does it sometimes get too steep? That innocent bystanders would be harmed. However, I think th

Remember word 5

Ignite ignite ignition One person ignited at night --- Ignore ignored A nore ignores Ignorant ignorance iggnorance n ignorance Annoy troubles Ah no Be annoyed with Sb disturbing someone Hum Soil Human Humid humid humidity n humidity Humble modest and humble Tumble falls You are greedy when walking, so you fall Stumble falls Gamble gambling Cadres love gambling Inspire inspiration Inspiration inspiration Expire, God takes your breath Go west to West Expiration

Failed to load libGL. so Problem Solving

When the simulated device Android 4.2.2 is started in Ubuntu 14.04, the following error occurs: failed to load libgl.so First use the locate command to locate the libGL library, and then add a link: dean@dean-Aspire-V7-481G:~$ locate libGL/opt/android-sdk-linux/tools/lib/libGLES_CM_translator.so/opt/android-sdk-linux/tools/lib/libGLES_V2_translator.so/usr/lib/i386-linux-gnu/mesa/libGL.so.1/usr/lib/i386-linux-gnu/mesa/libGL.so.1.2.0/usr/lib/x86_64-l

Acer Swift 7 Ultra-Extreme What about Acer Swift 7 pros and cons evaluation

Acer's 13-inch Swift 7 is the lightest, thinnest and most portable ultra-extreme in the market, coupled with a fan-less design, so it doesn't have much noise to run. At the same time, the Swift 7 design is also very stylish, and keyboard feel is also I experienced in all the superb level of the super, and the large touch pad is also very comfortable to use. But that does not mean Swift 7 is perfect, and of course there are drawbacks. First, Swift 7 is priced at $1050 (about 7090 yuan), althou

Dell XPS 18 Evaluation

experienced the screen of this computer, you will certainly like it. Camera Dell XPS 18 is equipped with high-definition cameras to take photos and record 720P video. For comparison purposes, we used the ASUS Zenbook HD camera to contrast it. In daylight, the XPS 18 photo is a little blurry, but has a high color reduction. The photos taken by the XPS 18 are a little blurry, but much better than the photos taken by Asus ' Zenbook. Under weak light conditions, the XPS 18 has a far

Summary Linux system test hard disk I/O

drive fetch read speed, 2 seconds read 8470 MB, average reads per second: 4235.83 mb/secTiming buffered Disk reads:722 MB in 3.22 seconds = 224.28 Mb/sec # hard disk read speed: 3.22 seconds read 722 MB, average reads per second: 224.28 mb/sec(2) test the write speed with the DD command:DD command is a less professional speed measurement tool, if the requirements are not very strict, or can be repeated tes

About JSP page using JSTL exception Analysis _jsp programming

1. Use the following code in the JSP page to join JSTL support Copy Code code as follows: 2. If the JSP page reports the following exception org.apache.jasper.JasperException:java.lang.ClassNotFoundException:org.apache.jsp.Customer.addCustomerInfo_jsp Org.apache.jasper.servlet.JspServletWrapper.getServlet (jspservletwrapper.java:177) Org.apache.jasper.servlet.JspServletWrapper.service (jspservletwrapper.java:369) Org.apache.jasper.servlet.JspServlet.serviceJspFile (jspserv

MySQL truncate delete records recovery notes

'; +------------------+------+-------------+-----------+-------------+-------------------------------------------- --------+| log_name | Pos | event_type | server_id | End_log_pos | Info |+------------------+------+-------------+-----------+-------------+--------------------------------------- -------------+| mysql-bin.000004 |4| format_desc |753306|120| Server ver:5.6.16-64.2-rel64.2-log, Binlog ver:4| | mysql-bin.000004 |120| query |753306|209| Use ' WUBX '; Truncatetable TB_WUBX | | mysql-bi

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