Sutter's Mill

JANUARY 11, 2021

An assertion documents the expected state of specific program variables at the point where the assertion is written, in a testable way so that we can find program bugs — logic errors that have led to corrupted program state. Assertions are only about finding bugs, not doing program work.

C++ 58

C++ Programming Code Testing 58

Percona

AUGUST 30, 2023

This can be changed later using the pg_checksums utility, but that will be a painful exercise on a big database. Object-level settings PostgreSQL allows us to specify the parameter specific to a program block, like a PL/pgSQL function. Here is an example of the function definition to test the function-level settings.

Database 105

Database Servers Open Source Tuning 105

O'Reilly

DECEMBER 12, 2023

This ruling in itself raises many questions: how much creativity is needed, and is that the same kind of creativity that an artist exercises with a paintbrush? I can also ask for a reading list about plagues in 16th century England, algorithms for testing prime numbers, or anything else.

Artificial Intelligence 101

Artificial Intelligence Media Google Processing 101

ScaleOut Software

AUGUST 20, 2020

Development is fast and straightforward using standard object-oriented techniques, and the test/debug cycle is kept short by making use of a mock environment running on the developer’s workstation. Real-time digital twins are designed to be easy to develop and modify. What Are Real-Time Digital Twins?

Cloud 52

Cloud Development Analytics Azure 52

ScaleOut Software

AUGUST 20, 2020

Development is fast and straightforward using standard object-oriented techniques, and the test/debug cycle is kept short by making use of a mock environment running on the developer’s workstation. Real-time digital twins are designed to be easy to develop and modify. What Are Real-Time Digital Twins?

Cloud 52

Cloud Development Analytics Azure 52

Sutter's Mill

MAY 1, 2023

Examples like the following now work… see test file pure2-break-continue.cpp2 for more examples. Examples like the following now work… see test file pure2-break-continue.cpp2 for more examples. For example, see the test case pure2-types-order-independence-and-nesting.cpp2. this defaults to the current type.

C++ 97

C++ Virtualization Lambda Code 97

Sutter's Mill

FEBRUARY 17, 2020

Thank you to the following for their feedback on drafts of this material: Howard Hinnant (lead designer and author of move semantics), Jens Maurer, Arthur O’Dwyer, Geoffrey Romer, Bjarne Stroustrup, Andrew Sutton, Ville Voutilainen, Jonathan Wakely. This post is an attempt to shed light on that situation.

C++ 98

C++ Testing Design Strategy 98

The Morning Paper

APRIL 16, 2019

Testing and grading their solutions is another! Although we added tests to catch specific issues as we learned of them, we found it difficult to keep up with the diversity of possible student errors. Testing and model checking. It’s hard to exhaustively test a distributed system with traditional testing techniques.

Systems 43

Systems Efficiency Testing Strategy 43

O'Reilly Software

MARCH 7, 2018

Software today is not typically a single program—something that is executed by an operator or user, producing a result to that person—but rather a service : something that runs for the benefit of its consumers, a provider of value. The most common programming task in the world. Let’s dive into this concept for a bit.

Transportation 72

Transportation Java Programming Architecture 72

The Agile Manager

AUGUST 31, 2020

In some cases, if only a very few, these assets continue to be used because they still work very well, were thoughtfully designed, and have been well cared for over the years. The exercise of assessing, modeling and dispositioning the landscape does offer valuable new ways of looking at legacy assets.

Architecture 52

Architecture Code Strategy Programming 52

Alex Russell

AUGUST 30, 2021

Large projects like browser engines also exercise governance through a hierarchy of "OWNER bits," which explicitly name engineers empowered to permit changes in a section of the codebase. Developers can provide feedback from using features and lobby other browsers to adopt (or re-design) them.

Engineering 98

Engineering Open Source Website Operating System 98

Sutter's Mill

MARCH 25, 2021

Some of these are exercised by the “wrong order” permutations above, but even call sites that remember the right argument order can make mistakes about the actual values. Wrong value (1 way): Second, there is an implicit precondition that min <= max , so passing arguments where min > max would be wrong, but would silently compile.

C++ 45

C++ Design Code Systems 45

O'Reilly

OCTOBER 19, 2021

In effect, the engineer designs and builds the world wherein the software operates. There is a decades-long tradition of data-centric programming : developers who have been using data-centric IDEs, such as RStudio, Matlab, Jupyter Notebooks, or even Excel to model complex real-world phenomena, should find this paradigm familiar.

DevOps 138

DevOps Software Engineering Infrastructure Open Source 138

John McCalpin

JANUARY 22, 2018

There was no deep goal — just a desire to see the maximum GFLOPS in action. The exercise seemed simple enough — just fix one item in the Colfax code and we should be finished. Single-core testing with the same DGEMM routine showed maximum values of just under 72% of the nominal peak (about 90% of “adjusted peak”).

Latency 40

Latency Hardware Code Testing 40

The Agile Manager

OCTOBER 31, 2022

It’s also awkward, an exercise of the blindfolded people describing the pachyderm. Some of this is likely a function of professional programming: if, for the totality of your career, the boss has supplied you with the reason why you do the things that you do, it isn’t natural to start a new initiative by asking “why”. And that’s ok.

Strategy 89

Strategy Retail Operating System Programming 89