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There are many performance analysis tools on Linux, and a system performance expert, Brendan D Gregg, was found on Weibo, and a talk and slideshow on Linux performance was released at the recent LinuxCon NA 2014 conference. Compared with last year, this year increased the testing and optimization of the two parts. I have been programming for many years, the tools are only used, no in-depth research. Subsequent to these tools into the analysis, the first Guide group of students in the actual proj

When you print an Excel worksheet, you may have data in the middle branch of the worksheet that you don't want to print. At this point, we may want to use the outline of Excel to solve this problem. The steps are as follows: Select the rows in the Excel table that you want to hide, press alt+shift+-> (right arrow), and at this point, two rating buttons 1 and 2 are present on the right side of the worksheet. When you print, click Button 1, and the dat

Step 1th, open the Word2013 document window, and click the file → options button. Step 2nd, open the Word Options dialog box and switch to the Advanced tab. In the Show document contents area, select the Use draft font in draft and outline view check box, and set the draft font and font size, respectively. When you have finished setting up, click the OK button. Note : More wonderful tutorials Please pay attention to the triple computer

it shows that coding is a problem that has been solved, and the model is more of an AI problem. Refer to the book of the DonPpm. Use Python to reproduce a ppm to compress the brown corpus (or the entire corpus so that it compares to the 300M 233). Notice the use of the NLTK in the function, with N-gram instead of the above, using freqdist to do statistics. (Sense of complexity to explode)Introduce text prediction, LSTM. Refer to the multi-data, the existing Stanford one, and then look at the pr

-dimensional convex bagNearest point pair, nearest round pairRotating JamCalculation distance: Convex polygon diameter, shape width, maximum and minimum distance between convex polygonOutside rectangle: Minimum perimeter, minimum area outside rectangleTriangulation: onion, spiral, quadrilateral splitConvex polygon Properties: Bump Merge, find Gongsche, critical tangent, convex polygon intersection, convex polygon vector, andThinnest cross section: Thinnest cross-sectional bandTriangleSpherical d

The Word2013 provides a variety of view modes for users to choose from, including the five view modes of Page view, reading view, Web layout view, outline view, and draft view. Users can select the desired document view mode in the View ribbon, or click the View button at the bottom right of the Word2013 document window to select the view. 1. Page view Print layout view displays the appearance of the printed results of the Word2013 document, includi

Database interviews are often asked at the test center:1. Internal and external connections, left outer and right outer connections, all outside connections2. What the view is and the advantages of the view3. What are the advantages of indexing, and what are the rules for indexing?4. Write SQL statement: involves order by, group by, have, like, limit, etc.5. What is slow query? How to optimize slow query?6.mysql Performance OptimizationWhat are the 7.mysql storage engines? What is the difference

() getdate () DateDiff () datepart () DateAdd ()3 string: Len () Left () right () upper () lower ()4. Conversion function cast (xxx as type)Iv. High-level content:IndexClustered index, non-clustered index.Advantages: Fast Disadvantage: ChangeSyntax: CREATE INDEX On tablemanually build the index; Similar to building unique constraintsViewA view is a query result of a query statementThe view itself does not contain data, and the results of the view are isolated from the related tables.Views can b

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using the graphics library. You use the mobile phone display background, display the phone number, text messages are also based on the graphics library to achieve. Embedded Linux system is not necessarily used in the graphics library, so the graphics library is one of the embedded Linux system can be cut, the current popular graphics library has QT/MINIGUI/GTK+2/MFC, in addition to MFC can be used in embedded Linux system.Embedded Linux system-embedded database, or embeded SQL, is another impor

Making glass appliances is relatively difficult to draw. Because the highlights and dark tones of the glass are concentrated on the edge, and the color comparison is strong, sometimes there are more ambient colors. It is best to lay the color in

 OpenGL ES programming guide for iPhone OS -- Introduction "OpenGL on iPhone OS" provides an overview of OpenGL ES and how it is integrated into the graphics subsystem on the iPhone. "Determining OpenGL ES capabilities" describes how to select

Operating System:1. What kind of States are involved in the process, the status transition diagram, and the events that cause the conversion.2. Differences between processes and threads.3. process communication methods.4. Several Methods of thread

Here we will analyze the test points that constitute the principle. The computer system overview chapter has almost no possibility of comprehensive application issues. Most of the knowledge points only need to be understood. Computer Development

All of the following courseware are from Tongji University Liu Yan teacher's because of the teaching language problem, if the translation is not correct in the place to welcome correctSection 1. Part of the content enhancement for ServletsI. How to

First paradigm Each row in a table must have only unique row values. Each column in a row has only unique values and is atomic. Second paradigm The second paradigm requires that the non-primary key column is a subset of the primary key, and the

Usage of service in sharpdevelop:Some static auxiliary classes are required to help the main process complete some small and trivial functions that are additionally extended, such as The openfile function, such as obtaining the compiler output

SOA, ubiquitous service-oriented architecture, WebServices, Ajax, and WCF. Finally, I can calm down and learn about WCF. With the newly released stocktrader 2.03 by Microsoft, let me cultivate the application of distributed architecture in

We need to fully implement what business we want to do, rather than how to practice this business. In addition, I feel that when writing this thing, it is actually to split a lot of things into multiple parts to sort them from new ones and form

A) Index Analysis of sites in search enginesI. Large search engines, including Baidu and Google, which are almost negligibleIi. In addition to Google PR, PR almost does not need to be considered. personal opinionsIii. site ranking (site name):