Speed Curve

APRIL 27, 2022

But as you can see in these filmstrips of Wiggle, a UK cycling retailer, hiding the page can have a dramatic impact on a visitor's experience: Comparison of a site loading with (top) and without (bottom) the anti-flicker snippet enabled. The test in top row has the anti-flicker snippet in place. async-hide { opacity: 0 !important important }.

Performance 145

Performance C++ Google Retail 145

SQL Performance

AUGUST 1, 2022

One of the complexities that is of a specific importance to this section is comparisons that potentially involve NULL comparands, such as ones that you use in filter and join predicates. Most operators that you use in such comparisons, including the equals (=) and different than (<>) operators, use three-valued logic.

Servers 142

Servers Testing C++ Code 142

Sutter's Mill

SEPTEMBER 25, 2022

[Edited to add pre-publication link to next draft of P2392, revision 2, and correct iterator comparison] Brief background As I presented at CppCon 2021 starting at 11:15 , I’m proposing is (a general type or value query) and as (a general cast, for only the safe casts) for C++ evolution. in requires clauses, in general code).

C++ 96

C++ Testing Code Systems 96

SQL Performance

FEBRUARY 12, 2020

In Part 1 I covered the meaning of the NULL marker and how it behaves in comparisons. In Part 1 in the series I explained how NULLs behave in comparisons and the complexities around the three-valued predicate logic that SQL and T-SQL employ. Often in practice you want NULLs to behave just like non-NULL values for comparison purposes.

C++ 120

C++ Code Servers Database 120

Sutter's Mill

JUNE 3, 2021

Briefly, what is the difference among: (a) undefined behavior Undefined behavior is what happens when your program tries to do something whose meaning is not defined at all in the C++ standard language or library (illegal code and/or data). You’ll get some valid result, but you won’t know what the result is until your code looks at it.

C++ 54

C++ Programming Lambda Code 54

SQL Performance

DECEMBER 11, 2019

I start with coverage of what NULLs are and how they behave in comparisons. Comparisons involving NULLs. I'll first cover comparisons involving constants. Later I'll cover comparisons involving variables, parameters and columns. This way you can avoid unnecessary bugs and pitfalls.

Best Practices 117

Best Practices C++ Database Code 117

SQL Performance

APRIL 13, 2022

L0 AS ( SELECT 1 AS c. Following is the first solution to our challenge, which is based on a technique that has been known for a while: WITH C AS. ( ) SELECT grp , ord , val , ROW_NUMBER ( ) OVER ( PARTITION BY grp , val , island ORDER BY ord ) AS seqno FROM C ; I’ll refer to it as Known Solution 1. . )

C++ 136

C++ Strategy Testing Servers 136

SQL Performance

JULY 1, 2021

name , [ Column ] = c. name , [ Data Type ] = TYPE_NAME ( c. system_type_id <> c. THEN N' (' + TYPE_NAME ( c. columns AS c INNER JOIN sys. objects AS o ON c. [ [ schema_id ] WHERE c. [ schema_id ] WHERE c. columns AS c INNER JOIN sys.

C++ 58

C++ Database Servers Performance 58

Highly Scalable

JUNE 5, 2012

In this article I describe several useful techniques that are based on SSE instructions and provide results of performance testing for Lucene, Java, and C implementations. Performance of this procedure both in C and Java will be evaluated in the last section.

C++ 102

C++ Java Performance Testing Efficiency 102

Percona

JUNE 4, 2023

In this blog, we’ll provide a comparison between MariaDB vs. MySQL (including Percona Server for MySQL ). MariaDB vs. MySQL vs Percona Server for MySQL: General Comparisons MariaDB, MySQL, and Percona Server for MySQL are all very popular choices for relational database management systems. In-development for MySQL 8.0 (now

Open Source 52

Open Source Servers Storage Scalability 52

SQL Performance

DECEMBER 9, 2020

L0 AS ( SELECT 1 AS c. Figure 1: Plan for base CTE cardinality of 2.

C++ 114

C++ Servers Testing Code 114

The Morning Paper

SEPTEMBER 20, 2020

In comparison, this ratio is only 0.03% for Java projects managed by Maven following the same investigation method. For example, think of the classic diamond pattern where A depends on B and C, and B and C both in turn depend on D, but there is no version of D that satisfies the constraints of both B and C.

Monitoring 137

Monitoring Java C++ Strategy 137

The Morning Paper

MAY 16, 2019

An especially interesting comparison can be made in the case of gRPC, which has both a C implementation and a Go implementation. The following table shows the ratio of the number of goroutines created in gRPC-Go compared to gRPC-C, when processing the same number of requests.

Programming 100

Programming C++ Design Code 100

Nick Desaulniers

SEPTEMBER 5, 2017

Also, the comparison is not quite fair since the overlap in front-end-language and back-end-target support in these two massive projects does not overlap in a lot of places. Either way, I’m thankful to have not one, but two high quality open source C/C++ compilers. Lies, damn lies, and statistics, right?

Development 75

Development C++ Open Source Engineering 75

DZone

FEBRUARY 27, 2021

The legacy languages — be it ASM or C still rule in terms of performance. There were languages I briefly read about, including other performance comparisons on the internet. Considering all aspects and needs of current enterprise development, it is C++ and Java which outscore the other in terms of speed.

Java 207

Java C++ Benchmarking Programming 207

The Netflix TechBlog

APRIL 17, 2019

However, rav1e is written in Rust programming language, whereas an encoder written in C has a much broader base of potential developers. In the figure below, you can see a comparison of two versions of the SVT-AV1 codec, the blue plot representing SVT-AV1 version from March 15, 2019, and the green one from March 19, 2019.

Open Source 166

Open Source Scalability Speed Efficiency 166

Tech News Gather

SEPTEMBER 7, 2022

For instance, iPhone uses Swift or Objective C for development whereas, for Android app development, it uses Java or Kotlin as its programming language. There, when Objective C, Swift, Java, and Kotlin are mixed with their corresponding devices, they are deemed native languages. UI/UX Experience.

Development 52

Development Mobile Java C++ 52

Sutter's Mill

AUGUST 13, 2023

Thanks again to C++ Now for inviting me to speak this year in glorious Aspen, Colorado, USA! The talk I gave there was just posted on YouTube, you can find it here: At CppCon 2022, I argued for why we should try to make C++ 10x simpler and safer , and I presented my own incomplete experimental compiler, cppfront.

C++ 89

C++ Efficiency Design Virtualization 89

Percona

OCTOBER 3, 2018

This is simple if you use a LEFT JOIN and an IS NULL comparison over the second table in the WHERE clause, but what if the column could be null? from -> sbtest1 a left join -> sbtest2 b using (k,c,pad) -> where b.id from -> sbtest2 a left join -> sbtest1 b using (k,c,pad) -> where b.id

C++ 44

C++ Virtualization Performance Processing 44

Brendan Gregg

OCTOBER 8, 2018

C @ns: [256, 512) 10900 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ | [512, 1k) 18291 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@| [1k, 2k) 4998 |@@@@@@@@@@@@@@ | [2k, 4k) 57 | | [4k, 8k) 117 | | [8k, 16k) 48 | | [16k, 32k) 109 | | [32k, 64k) 3 | |. Here's a comparison for an average-sized DTraceToolkit script (seeksize.d)

C++ 110

C++ Virtualization Programming Latency 110

SQL Performance

DECEMBER 9, 2020

L0 AS ( SELECT 1 AS c. Figure 1: Plan for base CTE cardinality of 2.

C++ 61

C++ Servers Testing Code 61

HammerDB

OCTOBER 23, 2023

HammerDB has always used stored procedures as a design decision because the original benchmark was implemented as close as possible to the example workload in the TPC-C specification that uses stored procedures. Additionally, reviewing official TPC-C full disclosure reports highlighted that all vendors also use stored procedures.

Benchmarking 62

Benchmarking Database Network C++ 62

The Polyglot Developer

JULY 1, 2016

One of the things that everyone seems to bring up is that the UI NativeScript offers is unattractive in comparison to frameworks like Ionic. Sure, it may be unattractive, but it is a native UI and had you been developing with Java or Objective-C things would be no different. The UI is what you make of it.

Mobile 52

Mobile Java C++ Design 52

SQL Performance

AUGUST 2, 2019

OrderID , c. Customers c ON o. CustomerID = c. OrderID , c. OrderID , c. Customers c ON o. CustomerID = c. OrderID , c. OrderID , c. Customers c ON o. CustomerID c. OrderID , c. OrderLines ol ON o. OrderID = ol. OrderDate = @OrderDate ; SELECT o. CustomerID.

Servers 95

Servers C++ Testing Systems 95

Testsigma

AUGUST 28, 2021

Your ROI would be “(a+b) – c”. Note: In the case of cross-browser testing, you should also consider the cost of setting up a test lab in comparison to choosing a tool that comes integrated with these test labs. After test automation is set up, how much you will be spending (time money, and space included).

Testing 75

Testing Cloud C++ Operating System 75

Sutter's Mill

JANUARY 25, 2021

Not only is the integer comparison operation cheap, but min and max are already being accessed by this function and so they’re already “hot” in registers or cache. P0542: Support for contract based programming in C++” (WG21 paper, June 2018). b) arbitrarily expensive “A condition that’s expensive? Dos Reis, J. Meredith, N. Stroustrup.

C++ 45

C++ Programming Cache Testing 45

Smashing Magazine

OCTOBER 25, 2021

A comparison of a user avatar without object-fit and with object-fit: cover. c-avatar { object-fit: cover; }. A perfect use case for object-fit: cover is user avatars. The aspect ratio allowed for an avatar is often square. Placing an image in a square container could distort the image. Large preview ).c-avatar Logos List.

C++ 142

C++ Website Systems Design 142

Sutter's Mill

MARCH 25, 2021

This is more obvious when the precondition involves multiple parameters (or ordinary variables for that matter); a poster child is the STL’s pervasive use of iterator pairs, which have long been crying out to be encapsulated using a range abstraction, and fortunately we now have that in C++20. Consider using a class instead. is_reachable?

C++ 45

C++ Design Code Systems 45

SQL Performance

JANUARY 8, 2020

I also explained how comparisons involving NULLs work with constants, variables, parameters and columns. ( 1 , 'A' , 100.00 ) , ( 2 , 'B' , 200.00 ) , ( 3 , 'C' , NULL ) ; Notice that contacts 1 and 2 have applicable hourly rates, and contact 3 doesn't, so its hourly rate is set to NULL. 3 C NULL 4 D 150.00

Design 65

Design C++ Code Database 65

The Morning Paper

JUNE 20, 2019

Most Azure code is written in.Net managed languages such as C#, reducing memory leak bugs. In comparison, automatically generating mitigation steps has not been well studied and is worth more attention in the future. Tools like CHESS and PCT [[link] are used to expose shared-memory concurrency bugs.

Cloud 81

Cloud Azure Cache C++ 81

Smashing Magazine

NOVEMBER 26, 2021

You can take a look at their comparison and features to decide which one you should use. There is an excellent article The Testing Trophy and Testing Classifications by Kent C. These packages will fetch and cache async data from your back-end API endpoints and make your application state much more maintainable.

Cache 143

Cache Code Testing Design 143

Testsigma

JANUARY 18, 2021

The usage of Selenium requires understanding about the framework and programming languages like C#, Python, Java, PHP, etc. You can also refer to our detailed coverage on the comparison of manual and automated cross browser testing for further information on manual and automated testing. You can read more about Testsigma here.

Testing 55

Testing Operating System Website Internet 55

ACM Sigarch

OCTOBER 4, 2018

Order preserving encryption is only useful when simple comparisons such as less than/greater than need to be applied to data and reveals the outcome of these comparisons to an attacker, but is reasonably efficient. For Further Study: Applied Cryptography: Protocols, Algorithms, and Source Code in C by Schneier.

Systems 47

Systems Hardware Storage Healthcare 47

Nick Desaulniers

MAY 25, 2015

The other programs that might be compiled are C, C++, and to some extent Java and C#. In this post, I hope to show how similar by comparing the code for an interpreter, a compiler, and a JIT compiler for the language Brainfuck in around 100 lines of C code each. All of the code in the post is up on GitHub.

C++ 73

C++ Programming Code Architecture 73

The Morning Paper

AUGUST 29, 2019

We group the DBMS design choices and tradeoffs into three broad categories, which result from the need for dealing with (A) external storage; (B) query executors that are spun on demand; and (C) DBMS-as-a-service offerings. Key findings. Query restrictions. Neither Spectrum nor Athena could run the full TPC-H query suite.

Architecture 76

Architecture Cloud Storage Serverless 76

O'Reilly

SEPTEMBER 15, 2021

A small number (5%) reported their preferred pronoun as “they” or Other, but this sample was too small to draw any significant comparisons about compensation. C++, C#, and C were further back in the list (12%, 12%, and 11%, respectively).

Azure 145

Azure Social Media Programming Education 145

Testsigma

JULY 31, 2021

It can be easily integrated with a range of DevOps tools, and it supports tech stacks such as.NET, C#, HTML5, Java, etc. It comes with an in-built image comparison feature that helps you detect UI errors quickly. With Ranorex, you can start testing GUI elements as soon as they’re ready or even user code modules.

Testing 52

Testing Testing Tools Analytics Java 52