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SEARCH KEYWORD -- Optimization

  Office 2013 RT for Windows RT tablets may rule out macros and VBA

Office 2013 RT is the office suite optimized for Windows RT system running on ARM tablet PC, Microsoft plans to release a preview version later this year. However, according to TheVerge, Microsoft may remove some features in this version of the Office suite.The so-called optimization, certainly require some changes to Office based on ARM tablet architecture. To remove some features may be because of battery life and machine reliability considerations. Macrso, third-party add-ons, and VBA will be...

   Office 2013,Macro,Window RT     2012-08-07 14:17:53

  Macro vs. Micro Optimisation

So there's recently been a bit of hype about another Colebourne article: http://blog.joda.org/2011/11/real-life-scala-feedback-from-yammer.html I'd like to respond to a few points he makes. First - You should evaluate Scala and pay attention to its benefits and flaws before adopting it.  Yes, there are flaws to Scala.   Working at typesafe makes you more aware of some of them.  We're actively working to reduce/minimize/get rid of these.   In my opinion, the negat...

   Optimization,Performance,Micro,Macro,Software     2011-11-30 12:04:25

  Understanding PGO in GoLang 1.20

Background The Go 1.20 version was officially released in February 2023, it introduced the PGO(Profile Guided Optimization) mechanism. The basic principle of PGO can be divided into the following two steps: First, profiling is performed on the program to collect data about the program's runtime and generate a profiling file. When compiling the program, enable the PGO option, and the compiler will optimize the program's performance based on the content in the .pgo file. When compiling a program...

   GO 1.20,PGO,GOLANG     2023-02-28 04:27:46

  Why you should be careful about optimizations

In one of my current javascript projects, I have to deal with 3D voxel coordinates. And, sometimes, I have floating points coordinates which must be converted to integers in order to convert them into proper array index. Javascript is a wonderful language, really. However, implementations are sometimes weird, and the way to do something can sometimes have very huge impacts on the performances. Worse, sometimes the classical way is more expensive than the tricky one. So, some peo...

   JavaScript,Bitwise,Floor,Trick,Optimization     2012-05-02 11:29:20

  How MySQL optmizes ORDER BY

In some situations, MySQL will just use an index to fulfill the requirement of an ORDER BY or GROUP BY statement without extra sorting. Although ORDER BY will not have the exact match with index, index can still be used as long as the portion that is not included in the index is included in the where clause. The following queries will all use index to process the ORDER BY or GROUP BY part: SELECT * FROM t1 ORDER BY key_part1,key_part2,... ;SELECT * FROM t1 WHERE key_part1=constant ORDER BY key_p...

   MySQL,index,ORDER BY,optimization     2012-11-13 11:01:05

  Hologres vs AWS Redshift

Hologres and Redshift are both data warehousing solutions, but they have some differences in terms of features, architecture, and target use cases. Underlying Infrastructure Hologres: Built on Alibaba Cloud's Apsara distributed computing platform, Hologres leverages the underlying infrastructure for storage, computation, and management. It benefits from Alibaba's expertise in cloud-native architecture and real-time data processing. Redshift: Amazon Redshift is based on a Massively Parallel Pro...

   HOLOGRES,REDSHIFT,ALIBABA,AWS,BIG DATA,REAL-TIME     2024-03-23 01:36:41

  Faster than C

Judging the performance of programming languages, usually C is called the leader, though Fortran is often faster. New programming languages commonly use C as their reference and they are really proud to be only so much slower than C. Few language designer try to beat C. What does it take for a language to be faster than C? Better Aliasing Information Aliasing describes the fact that two references might point to the same memory location. For example, consider the canonical memory copy: void...

   C,Performance,Speed,Fortran,Criteria     2012-03-25 09:12:23

  Will camera be Android's next target after smartphone and tablet?

In Samsung's Mobile Unpack conference, Samsung announced one Android smart camera which supports 3G, 4G and Wi-Fi. This smart camera called Galxy Camera is equipped with the latest Android 4.1 system, 21 times zoom, 23mm ultra-wide-angle lens and 16 megapixel back-illuminated CMOS sensor, along with the OIS image stabilization technology. You can install various Android applications on this smart camera and edit photos and then share, it also comes with voice control function and cloud storage ...

   ILDC,Smart camera,Samsung,Android     2012-08-30 19:52:02

  Best practices of front end optimization

1. Use DocumentFragment or innerHTML to replace complex elements insertion DOM operation on browser is expensive. Although browser performance is improved much, multiple DOM elements insertion is still expensive and will affect the page load speed. Assume we have an ul element on our page, we now want to retrieve a JSON list using AJAX and then update the ul using JavaScript. Usually we may write it as : var list = document.querySelector('ul'); ajaxResult.items.forEach(function(item) { // ...

   JavaScript,Front end,Optimization,Tips     2013-07-06 11:26:27

  How small should a function be?

"The well-designed functions are often relatively small, large function design is often a mess or there is a lot of room for optimization."Maybe you think there is no need to discuss the size of functions, because the nature of the function design is cohesive, its size is only its manifestations. But it is necessary to discuss about the size of function because the statement above .First let's understand the concept of minimum code processing unit : a basic operation (assignment, comparison, etc...

   Function size,Optimization     2012-12-18 13:58:07

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