SQL Performance

JANUARY 12, 2022

Despite the poor performance, working on the solution is an interesting exercise. Also, there's potential here to benefit from batch processing. It's curious the optimizer chose one strategy for the demand intervals and another for the supply intervals. This article is dedicated to this poor performing approach.

Code 116

Code Servers Performance Azure 116

Dynatrace

JUNE 27, 2022

These development and testing practices ensure the performance of critical applications and resources to deliver loyalty-building user experiences. Real user monitoring (RUM) is a performance monitoring process that collects detailed data about users’ interactions with an application. What is real user monitoring?

Best Practices 175

Best Practices Monitoring Wireless Traffic 175

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. Both use the same database back-end and app configuration.

Systems 26

Systems Traffic DevOps Database 26

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. For example, ghost code - code that is not commented out but will conditionally never be executed - is likely to be confused for real code in a reverse-engineering exercise.

Strategy 40

Strategy Java Code Systems 40

CSS Wizardry

NOVEMBER 3, 2020

Any time you run a test with WebPageTest, you’ll get this table of different milestones and metrics. Note the bottom row shows me the Standard Deviation of the tests’ results. The whole point of the exercise that follows is to allow me to move quickly, spotting patterns from afar, and not having to do any slow or meticulous work yet.

Speed 292

Speed Ecommerce Metrics Analytics 292

Percona

DECEMBER 5, 2023

The scenario Service considerations In this exercise, we wanted to perform a major version upgrade from PostgreSQL v12.16 While we’ve contemplated taking a physical backup and conducting PITR , it’s worth noting that PITR can also be executed on the existing replica or delayed replica to expedite the process. and a v15.4.

Database 79

Database Traffic C++ Servers 79

Smashing Magazine

AUGUST 19, 2021

Ethics are an important part of human-computer interaction because they keep people at the heart of the design process. For example, try and recall the last time your team’s processes were audited for compliance against the company’s ethical standards. As UX practitioners, we know empathy is an important part of the design process.

Code 137

Code Design Education Government 137

Alex Russell

FEBRUARY 21, 2023

is astonishingly dense with delayed features, inadvertantly emphasising just how far behind WebKit has remained for many years and how effective the Blink Launch Process has been in allowing Chromium to ship responsibly while consensus was witheld in standards by Apple. No, this was a change in strategy. Regardless, Safari 16.4

Energy 79

Energy Games Engineering Design 79

Percona

JULY 6, 2023

then true else false end FROM generate_series(1, 10000000); Now we have our test table with some dummy data so we can practice. then true else false end FROM generate_series(1, 10000000); Now we have our test table with some dummy data so we can practice. Next is the table definition.

Best Practices 93

Best Practices Tuning Database Testing 93

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

Adrian Cockcroft

NOVEMBER 11, 2019

There are many possible failure modes, and each exercises a different aspect of resilience. In the same way that we have moved from a few big software releases a year to continuous delivery of many small changes, we need to move from annual disaster recover tests or suffering when things actually break, to continuously tested resilience.

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. In the same way that we have moved from a few big software releases a year to continuous delivery of many small changes, we need to move from annual disaster recover tests or suffering when things actually break, to continuously tested resilience.

Latency 53

Latency Engineering Systems Hardware 53

Tasktop

OCTOBER 30, 2019

Over the past months, a number of Fortune 100 customers have been testing Tasktop’s new product, Tasktop Viz , to implement the Flow Framework. He had a strategy. Getting feedback from auditors from get-go can simplify the process, explained Wolf. Day two recap. Chris had his sales hat on,” continued Aho. “He Roberts agreed.

DevOps 8

DevOps Education Innovation Metrics 8

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. The Downsides Of Disabled Buttons. Disabled buttons don’t explain what’s wrong.

Design 145

Design Transportation Code Systems 145

HammerDB

JANUARY 5, 2019

Some opinions claim that “Benchmarks are meaningless”, “benchmarks are irrelevant” or “benchmarks are nothing like your real applications” However for others “Benchmarks matter,” as they “account for the processing architecture and speed, memory, storage subsystems and the database engine.”

Benchmarking 40

Benchmarking Database Social Media Scalability 40

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

Smashing Magazine

AUGUST 9, 2021

Refactoring CSS: Strategy, Regression Testing And Maintenance written by Adrian Bece. She is the Principal Designer at 8th Light, where she designs and builds custom software and consults on safe and inclusive design strategy. Eva on Twitter. Eva’s personal site. Weekly Update. Lots of different issues with control.

Design 98

Design Education Network Google 98

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

The Netflix TechBlog

MARCH 6, 2019

—?Mounting object storage in Netflix’s media processing platform By Barak Alon (on behalf of Netflix’s Media Cloud Engineering team) MezzFS (short for “Mezzanine File System”) is a tool we’ve developed at Netflix that mounts cloud objects as local files via FUSE. Encoding is not a one-time process?—?large We have one file?—?the

Media 214

Media Storage Processing Cache 214