Dynatrace

DECEMBER 16, 2019

Commonly applied to development processes, technical debt accrues overtime when we choose an inefficient path of least resistance. Even small amounts of technical debt compound as new code branches from old, further embedding the shortcomings into the system. Technical Debt—Dilbert Comic Strip on 2017-01-03.

Artificial Intelligence 148

Artificial Intelligence Traffic Efficiency Innovation 148

The Netflix TechBlog

SEPTEMBER 13, 2021

Written by Jose Fernandez , Arthur Gonigberg , Julia Knecht , and Patrick Thomas In 2017, Netflix Studios was hitting an inflection point from a period of merely rapid growth to the sort of explosive growth that throws “how do we scale?” into every conversation. Our gateways are powered by our flagship open-source technology Zuul.

Internet 220

Internet Internet Cloud Traffic 220

Brendan Gregg

SEPTEMBER 5, 2017

What follows are topics that may be of interest to anyone looking to migrate their systems and skillset: scan these to find topics that interest you. ## ZFS ZFS is available for Linux via the [zfsonlinux] and [OpenZFS] projects, and more recently was included in Canonical's Ubuntu Linux distribution: Ubuntu Xenial 16.04 LTS (April 2016).

Virtualization 76

Virtualization AWS Engineering Hardware 76

All Things Distributed

MAY 19, 2017

We decided to use our inventive powers to design and build a new database engine that would give database systems such as MySQL and PostgreSQL reliability and performance at scale, at a level that could serve even the most demanding OLTP applications.

Database 117

Database Design Cloud Storage 117

Adrian Cockcroft

JANUARY 29, 2023

There is no way to model how much more traffic you can send to that system before it exceeds it’s SLA. This is unfortunate, because we’d really like to be able to build systems that have an SLA that we can share with the consumers of our interfaces, and be able to measure how well we are doing.

Lambda 98

Lambda Latency Cache C++ 98

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. What about short-lived processes, like a service restarting in a loop? Since instances of both CentOS and Ubuntu were running in parallel, I could collect flame graphs at the same time (same time-of-day traffic mix) and compare them side by side.

Speed 126

Speed Java AWS Virtualization 126

Alex Russell

MARCH 6, 2021

TL;DR: A lot has changed since 2017 when we last estimated a global baseline resource per-page resource budget of 130-170KiB. To update our global baseline from 2017, we want to update our priors on a few dimensions: The evolved device landscape. Advances in browser content processing. The Moto G4 , for example. Hard Reset.

Performance 124

Performance Network Cache Metrics 124

SQL Server According to Bob

JULY 17, 2018

When starting SQL Server on Linux why are there two (2) sqlservr processes? The simple answer is the first entry (85829) is not what you are used to on a Windows system as sqlservr.exe and does not listen for TDS traffic or open database files. Instead, the WATCHDOG is able to work safely as an external process.

Servers 40

Servers Processing Software Engineering Traffic 40

All Things Distributed

OCTOBER 2, 2017

With these requirements in mind, and a willingness to question the status quo, a small group of distributed systems experts came together and designed a horizontally scalable distributed database that would scale out for both reads and writes to meet the long-term needs of our business. This was the genesis of the Amazon Dynamo database.

Internet 128

Internet Internet AWS Performance 128

Percona

AUGUST 15, 2023

This blog was originally published in February 2017 and was updated in August 2023. MySQL replication is a process in which data from a primary MySQL database is copied and sent to one or more secondary databases, known as replicas. Start the replica server’s replication process. What is MySQL Replication?

Servers 52

Servers Database Availability Traffic 52

SQL Server According to Bob

DECEMBER 18, 2018

Durability: “In database systems , durability is the ACID property which guarantees transactions that have committed will survive permanently. For example, if a flight booking reports that a seat has successfully been booked, then the seat will remain booked even if the system crashes.” – [link]. Starting with the Linux 4.18

Servers 90

Servers Media Cache Storage 90

Percona

JULY 7, 2023

Also, in general terms, a high availability PostgreSQL solution must cover four key areas: Infrastructure: This is the physical or virtual hardware database systems rely on to run. StackOverflow statistics show that 26% of developers preferred it in 2017, 34% in 2019, and 40% in 2021. Failover is essential to minimizing downtime.

Availability 83

Availability Open Source Architecture Database 83

Testsigma

JANUARY 13, 2021

Studies show that in 2017, the worldwide failure rate of iOS apps was as high as 54%, with Android apps crashing 10% of the time. What business processes help with testing mobile apps ? Not only will this help speed track the testing process, it will also help make the objectives clearer.

Mobile 54

Mobile Strategy Testing Efficiency 54

Enprowess

JANUARY 12, 2022

Convenient Debugging : Debugging process is easy for the developers as single page application SPA offer developers tools. According to Ericsson’s analysis, international mobile data traffic is projected to become 4.5 Twitter Lite PWA : It was integrated as the standard User Interface in 2017. IoT tracking systems.

Blockchain 59

Blockchain IoT Development Serverless 59

Testsigma

JANUARY 29, 2021

That’s not all, the global mobile traffic is expected to increase sevenfold between 2017 and 2022. In this blog, we deep dive into the various aspects of mobile website testing, including the tools that can accelerate the testing process. The daily media consumption on mobile devices has grown by 504 percent since 2011[2].

Website 98

Website Mobile Testing Strategy 98

Smashing Magazine

JANUARY 21, 2021

After the latest redesign in late 2017, it was Ilya Pukhalski on the JavaScript side of things (part-time), Michael Riethmueller on the CSS side of things (a few hours a week), and yours truly, playing mind games with critical CSS and trying to juggle a few too many things.

Performance 145

Performance Cache Mobile Network 145

SQL Server According to Bob

FEBRUARY 10, 2019

SQL Server 2017 CU10 does not show behavior. · SQL Server 2017 CU12 exhibits the behavior. Several event types are included in the health session, some of which include predicates to remove noise from the system health session. As I cranked up the stress level on a 2TB, 144CPU system I hit some TCP issues. xel files. .

Servers 40

Servers Network Database Systems 40

Alex Russell

MARCH 31, 2022

Shared caches must make sense within this value system. That is unlikely given the need for SRI annotations or the unbecoming practice of speeding up high-traffic sites, but not others. One challenge for fair inclusion is the tension between site-count-weighting and traffic-weighting. That's how much wire size matters.

Cache 82

Cache Government Traffic Network 82

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. What about short-lived processes, like a service restarting in a loop? Since instances of both CentOS and Ubuntu were running in parallel, I could collect flame graphs at the same time (same time-of-day traffic mix) and compare them side by side.

Speed 40

Speed Java AWS Virtualization 40

Alex Russell

OCTOBER 22, 2017

— Alex Russell (@slightlylate) October 4, 2017. Tools and CI systems help them monitor progress & prevent regressions. Answering it requires an understanding of how browsers process resources (which differs by type) and the concept of the critical path. Processing input (including scrolling w/ active touch listeners).

Performance 68

Performance Benchmarking Network Mobile 68

Smashing Magazine

JANUARY 7, 2019

So, if we created an overview of all the things we have to keep in mind when improving performance — from the very start of the process until the final release of the website — what would that list look like? Also, as Patrick Meenan suggested, it’s worth to plan out a loading sequence and trade-offs during the design process.

Performance 104

Performance Cache Network Metrics 104