The Netflix TechBlog

DECEMBER 23, 2020

This abstraction allows the compute team to influence the reliability, efficiency, and operability of the fleet via the scheduler. We do this for reliability, scalability, and efficiency reasons. Let’s go back to that kernel code example earlier. The hosts that run workloads are called Titus “agents.” User Namespaces.

Media 297

Media Metrics Systems Processing 297

Dynatrace

APRIL 21, 2022

Performance efficiency. Using high-fidelity metrics, logs, code-level tracing, and a dynamic topology map of your applications, Davis can identify the precise root cause and prioritize its business impact. Performance Efficiency. Design efficient use of your computing resources as demand changes and technologies evolves.

Azure 201

Azure Monitoring Virtualization Metrics 201

Dynatrace

MAY 15, 2020

But outdated security practices pose a significant barrier even to the most efficient DevOps initiatives. We also quickly check for system events and see there were no scheduled code deploys in the last week. PoCs are incredibly powerful as an exercise we do WITH our customers, rather than TO them.

Government 239

Government DevOps Infrastructure Network 239

Dynatrace

JUNE 1, 2023

More than half of CIOs confirmed that they often make tradeoffs among code quality, security, and reliability to meet the need for rapid software delivery. Fitness app : The fitness app should offer a response time of less than 500 milliseconds for exercise tracking and data recording. or above for the checkout process.

Traffic 173

Traffic Website Latency Virtualization 173

The Netflix TechBlog

SEPTEMBER 10, 2024

Where aws ends and the internet begins is an exercise left to the reader. With these clear benefits, we continued to build out this functionality for more devices, enabling the same efficiency wins. This initial functionality was built out for FireTVs and was expanded from there. Sample system diagram for an Alexa voice command.

Latency 233

Latency Cache Tuning Efficiency 233

The Netflix TechBlog

FEBRUARY 10, 2021

It can be a nightmare to work efficiently. We wanted a way to ensure that we can have a consistent user experience while also sharing as much code as possible. Hawkins is the namesake that established the basis for a design system used across the Netflix Studio ecosystem.

Design 237

Design Systems Engineering Entertainment 237

The Netflix TechBlog

MAY 27, 2020

From failure injection testing to regularly exercising our region evacuation abilities, Netflix engineers invest a lot in ensuring the services that comprise Netflix are robust and reliable. Reliability, formally speaking, is the ability of a system to function under stated conditions for a period of time.

Engineering 106

Engineering Innovation Systems Architecture 106

Sutter's Mill

JULY 29, 2024

Safety and simplicity are the two core things I want to try to dramatically improve in C++, and are why I’m doing my cppfront experiment, so although the above absorbed some time away from cppfront coding it all contributes to the same goal. (If Jul 10, 2024), new things include: Added. Allow trailing commas in lists.

C++ 100

C++ Lambda Code Open Source 100

SQL Performance

JANUARY 12, 2022

Despite the poor performance, working on the solution is an interesting exercise. Use the following code to create the table and populate it with a small set of sample data: DROP TABLE IF EXISTS dbo. ( ID INT NOT NULL IDENTITY ( 1 , 1 ) CONSTRAINT pk_Auctions PRIMARY KEY CLUSTERED , Code CHAR ( 1 ) NOT NULL.

Code 116

Code Servers Performance Azure 116

O'Reilly

OCTOBER 19, 2021

If you peek under the hood of an ML-powered application, these days you will often find a repository of Python code. Let’s start by considering the job of a non-ML software engineer: writing traditional software deals with well-defined, narrowly-scoped inputs, which the engineer can exhaustively and cleanly model in the code.

DevOps 140

DevOps Software Engineering Infrastructure Open Source 140

O'Reilly

JUNE 15, 2023

Efficiency, not human flourishing, is maximized. Governance is not a “once and done” exercise. In his book Voices in the Code , James G. There is no perfectly efficient algorithm that gets everything right. The consequences, like those of Midas’s touch, aren’t pretty. Humans are seen as a cost to be eliminated.

Government 100

Government Best Practices Energy Internet 100

SQL Performance

APRIL 14, 2021

I also love his efficient and eloquent writing style. Use the following code to test the function with the variable assignment technique: DECLARE @n AS BIGINT ; SELECT @n = n FROM dbo. Here’s the code to test the function using the variable assignment technique: DECLARE @n AS BIGINT ; SELECT @n = n FROM dbo. NullBits102400 ; GO.

C++ 112

C++ Servers Testing Code 112

The Morning Paper

APRIL 16, 2019

Teaching rigorous distributed systems with efficient model checking Michael et al., Consider the lab exercise to implement Paxos. Luckily, code that is readily model checkable usually corresponds to the kind of code we want students to write — code that is as simple as possible with respect to its state graph.

Systems 43

Systems Efficiency Testing Design 43

Dynatrace

JUNE 1, 2021

Causes can run the gamut — from coding errors to database slowdowns to hosting or network performance issues. Millions of lines of code comprise these apps, and they include hundreds of interconnected digital services and open-source solutions , and run in containerized environments hosted across multiple cloud services.

Monitoring 148

Monitoring Mobile Social Media Infrastructure 148

Sutter's Mill

JANUARY 25, 2021

On a humorous note, O(N) remains O(N) no matter how hard we try to make it efficient: MyAssert( std::is_sorted( std::execution::par, begin(s), end(s) ) ); // still O(N) arbitrarily expensive, but good try! What does the answer to Question 1 imply for assertion checking?

C++ 62

C++ Programming Cache Testing 62

The Agile Manager

JANUARY 31, 2017

The distribution operation was built on efficiencies: fill delivery trucks to a minimum of 80% capacity and deliver products to customers on routes optimized for time and energy consumption. Distribution is about efficiency, because efficiency translates into price. At this point, the cracks started to appear.

Retail 45

Retail Energy Logistics Efficiency 45

Percona

AUGUST 8, 2023

Does your traffic increase come with updated code changes that change the queries? In fact, the most common cause of massive CPU increase that I’ve seen isn’t traffic increase; it’s code changes that introduced inefficient revisions to existing queries or new queries. Do these queries use more caches?

Traffic 93

Traffic Cache Monitoring Database 93

Sutter's Mill

MAY 1, 2023

This update covers Acknowledgments, and highlights of what’s new in the compiler and language since last time, including: simple, mathematically safe, and efficient chained comparisons named break and continue “simple and safe” starts with. In today’s C++, this kind of comparison silently compiles but is a bug.

C++ 97

C++ Virtualization Lambda Code 97

SQL Performance

NOVEMBER 30, 2021

Code would have to scan the entire list of buffers for the database, looking for buffers that map pages for the allocation unit in question. If you’re interested, I wrote a post a while back with some T-SQL code that scans the buffer pool and gives some metrics, using the DMV sys.dm_os_buffer_descriptors. ) ; GO.

Efficiency 54

Efficiency Servers Database Cache 54

Alex Russell

AUGUST 30, 2021

Anyone who cares to download and fork the code can do so. " The eventual Blink fork was precipitated by an insurmountable difficulty in doing precisely what Apple suggested to Congress: contributing code upstream to WebKit to enable new features. It's worth assessing these claims from most easily falsified to most contested.

Engineering 112

Engineering Open Source Website Operating System 112

Sutter's Mill

FEBRUARY 17, 2020

Otherwise, you’ll either get the implicitly generated move functions, or else requests to move will automatically just do a copy instead, since copy is always a valid implementation of move (it just doesn’t exercise the non- const option). Yes, in my view it does make it a buggy class that shouldn’t pass code review.

C++ 98

C++ Testing Design Strategy 98

SQL Performance

JUNE 10, 2020

That is, does SQL Server perform a substitution process whereby it converts the original nested code into one query that goes directly against the base tables? The answer is simple, to shorten the code by having the inner query use the infamous SELECT *. And if so, is there a way to instruct SQL Server to avoid this unnesting process?

C++ 109

C++ Database Servers Code 109

CSS - Tricks

APRIL 1, 2021

With all of this in mind, I thought improving the speed of my own version of a slow site would be a fun exercise. The code for the site is available on GitHub for reference. I found a lot of value in the Coverage panel in DevTools because it will show just how much code is being used after everything’s downloaded.

Cache 92

Cache Social Media Media Network 92

Testsigma

MARCH 6, 2020

Regression testing comprises re-running the test cases of already stable features and finding out if the new code changes attributed to the new release led to any negative impacts on the existing functionalities. Regression checks should start as soon as a new build is released for testing and should be repeated for every new code build.

Best Practices 52

Best Practices Testing Code Testing Tools 52

SQL Performance

JUNE 10, 2020

That is, does SQL Server perform a substitution process whereby it converts the original nested code into one query that goes directly against the base tables? The answer is simple, to shorten the code by having the inner query use the infamous SELECT *. And if so, is there a way to instruct SQL Server to avoid this unnesting process?

C++ 93

C++ Database Servers Code 93

The Agile Manager

FEBRUARY 23, 2009

For example, in the Java world we can measure all kinds of attributes of code: overcomplicated expressions, wasteful use of resources, ghost code, duplicate code, complexity, and so forth. Good in the sense that code quality doesn’t need to be taken for granted, because we can measure attributes of the asset we’re creating.

Government 40

Government Metrics Code Java 40

Brendan Gregg

NOVEMBER 13, 2017

Alice is great at fixing hard bugs, writing test suites, doing code merges, and other unglamorous work. Other staff devise processes to work around Bob, reducing the company's efficiency. She should be encouraged to exercise empathy, and to leave others feeling positive and motivated to work harder, rather than demotivated.

Engineering 110

Engineering Energy Testing Technology 110

The Agile Manager

AUGUST 31, 2020

Decades of poor architecture guidelines and lax developer discipline resulted in the commercial-off-the-shelf components of an ERP becoming inseparable from the custom code built around it. The exercise of assessing, modeling and dispositioning the landscape does offer valuable new ways of looking at legacy assets.

Code 52

Code Architecture Strategy Programming 52

John McCalpin

AUGUST 1, 2018

Bandwidth, performance analysis has two recurring themes: How fast should this code (or “simple” variations on this code) run on this hardware? Interacting components in the execution of an MPI job — a brief outline (from memory): The user source code, which contains an ordered set of calls to MPI routines.

Hardware 40

Hardware Transportation Performance Latency 40

Alex Russell

SEPTEMBER 20, 2020

Circa '07, those web apps were notably slower than native code could be. Sandboxing is now universal (tho quality may differ) and we collectively got savvy about running code quickly while retaining memory safety. When working well — efficiently applying unobjectionable policy — store screening is invisible to everyone but developers.

Hardware 71

Hardware Mobile Programming Java 71

The Agile Manager

MARCH 31, 2024

As a learning exercise, it is fantastic. Well, that was a red herring: the 220 categories previously supported is more accurately 1,943 under the various provincial and state tax codes. When setting out to do something different, map out the learning agenda that will put you in the position of “freely exercising authority”.

FinTech 40

FinTech Education Testing Website 40

The Agile Manager

NOVEMBER 30, 2014

Sometimes it is divestiture or separation: sprawling firms that serve different buyers or markets don't achieve much in the way of operating efficiency, and a "conglomerate discount" priced into their equity means there is value that can be released by dividing a firm into multiple businesses. IT is at the center of deal synergy.

Airlines 40

Airlines Efficiency Systems Processing 40

The Agile Manager

APRIL 14, 2009

Don't assume that this is simply an exercise in implementing tools, and be prepared to iterate to achieve greater degrees of transparency. If you have well-running Agile projects today with efficient data collection, take your project tracking to the next level. Be aware that there are ramifications to increasing team visibility.

Games 40

Games Government Metrics Testing 40

SQL Server According to Bob

JUNE 27, 2016

We developed a friendly competition to break one another’s code. We are a bit wiser (you could take that as older) now and we don’t wait until 5 o’clock but we still try everything we can think of to exercise the code. I quickly got a MacBook and started coding on OS X as well as my Linux VMs, reading articles and books.

Servers 40

Servers Games Azure Testing 40

Strategic Tech

DECEMBER 12, 2019

We have to specify with great precision in code exactly what our business rules are, and the computer will apply them exactly as we tell it to. It acts as a collaboration tool to balance the need for business correctness, user experience, and technical efficiency. Domain-Driven Design’s Aggregate pattern is used to bridge the gap.

Healthcare 10

Healthcare Software Architecture Database Software 10

The Agile Manager

DECEMBER 31, 2016

Platforms are conceptually popular with investors: in theory, a platform makes the mundane portions of a business efficient, scalable and adaptable, allowing a company to release the creative talents of its people to pursue growth and innovation. Employees will see replatforming as an exercise in re-creating software.

Innovation 40

Innovation Infrastructure Software Software 40

The Agile Manager

OCTOBER 28, 2007

They go on to report that 70% of the cases of these 7 chronic illnesses are preventable through lifestyle change: diet, exercise, avoiding cigarettes and what not. In lifestyle terms, I may avoid certain actions that may cause cancer, but if cancer is written into my genetic code the deck is stacked against me.

Government 40

Government Retail Energy Code 40