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 87

Traffic Cache Monitoring Database 87

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

JUNE 27, 2023

When a person clicked “submit,” the website would pass that form data through some backend code to process it—thereby sending an e-mail, creating an order, or storing a record in a database. That code was too trusting, though. Those 1990s web forms demonstrate the problem all too well. That’s because it is.

Social Media 88

Social Media Media Website Database 88

Dynatrace

JUNE 1, 2021

However, with today’s highly connected digital world, monitoring use cases expand to the services, processes, hosts, logs, networks, and of course, end-users that access these applications — including a company’s customers and employees. Mobile apps, websites, and business applications are typical use cases for monitoring.

Monitoring 148

Monitoring Mobile Social Media Artificial Intelligence 148

The Agile Manager

AUGUST 31, 2020

I've worked with quite a few companies for which long-lived software assets remain critical to day-to-day operations, ranging from 20-year-old ERP systems to custom software products that first processed a transaction way back in the 1960s. Several things stand out about these initiatives.

Architecture 52

Architecture Code Strategy Programming 52

The Morning Paper

JANUARY 23, 2020

In this study, the diagnosis and resolution of an outage in a global Internet service, Etsy.com, was explored in an effort to uncover which cognitive strategies (specifically, heuristics) are used by engineers as they work to bring the service back to a stable state. Gathering timestapms of changes made to application code during the outage.

Internet 53

Internet Internet Cache Engineering 53

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. This is the process of turning HTML, CSS and JavaScript into a fully fleshed out, interactive website. Again, every millisecond counts. Lighthouse.

Cache 92

Cache Social Media Media Network 92

Adrian Cockcroft

NOVEMBER 11, 2019

There are many possible failure modes, and each exercises a different aspect of resilience. Staff should be familiar with recovery processes and the behavior of the system when it’s working hard to mitigate failures. A resilient system continues to operate successfully in the presence of failures.

Latency 52

Latency Engineering Systems Hardware 52

Adrian Cockcroft

NOVEMBER 11, 2019

There are many possible failure modes, and each exercises a different aspect of resilience. Staff should be familiar with recovery processes and the behavior of the system when it’s working hard to mitigate failures. A resilient system continues to operate successfully in the presence of failures.

Latency 53

Latency Engineering Systems Hardware 53

Smashing Magazine

AUGUST 5, 2021

When large parts of the interface are disabled , most customers will assume that the system is busy , and some process is happening in the background on the page. And because something is happening, they usually exercise a good amount of patience first.

Design 145

Design Transportation Code Systems 145

The Morning Paper

APRIL 16, 2019

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. It’s hard to exhaustively test a distributed system with traditional testing techniques.

Systems 43

Systems Efficiency Testing Strategy 43

The Agile Manager

FEBRUARY 28, 2017

There aren't a lot of high cards we can draw, but playing them in the right combination offers us a strategy. Tool 1: Dolly the Sheep Companies that are heavily rule-based - think insurance - eagerly moved their business rules into code. It was easy to move into code; it's just as easy to move it back into human-readable format.

Strategy 40

Strategy Java Code Systems 40

Dynatrace

SEPTEMBER 20, 2019

Here’s what we discussed so far: In Part 1 we explored how DevOps teams can prevent a process crash from taking down services across an organization. In doing so, they automate build processes to speed up delivery, and minimize human involvement to prevent error. Step 1 — The Dynatrace Davis AI-engine identifies the root cause.

Systems 27

Systems Traffic DevOps Database 27

O'Reilly Software

MARCH 7, 2018

Working with never-ending streams of data necessitates continuous processing of it, ensuring the system keeps up with the load patterns it is exposed to, and always provides real-time, up-to-date information. Sadly, it is very common to write logic that deeply couples the notion of IO with the processing of that IO.

Transportation 72

Transportation Java Programming Architecture 72

Strategic Tech

DECEMBER 12, 2019

In the real world we can be vague about our business rules and processes. 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. We can make exceptions or we can bypass a few steps to accommodate special circumstances that we never anticipated.

Healthcare 10

Healthcare Software Architecture Database Software 10

Tasktop

OCTOBER 30, 2019

He demonstrated how a more elegant functional design—combining immutability, purity, and duality of code and data—can save larger enterprises millions of dollars, as demonstrated by his previous work at Walmart. He had a strategy. Getting feedback from auditors from get-go can simplify the process, explained Wolf.

DevOps 8

DevOps Education Innovation Metrics 8