Brendan Gregg

DECEMBER 30, 2017

My last talk for 2017 was at AWS re:Invent, on "How Netflix Tunes EC2 Instances for Performance," an updated version of my [2014] talk. WARNING: These tunables were developed in late 2017, for Ubuntu Xenial instances on EC2.** Casey Rosenthal (traffic and chaos) Models of Availability. We help where we can. schedtool –B PID.

Tuning 52

Tuning AWS Best Practices Network 52

The Symphonia

DECEMBER 19, 2017

Hello everyone, and welcome to the last Serverless Insights of 2017! Since our’s were chalk talks they’re not available online, but here are some fascinating alternatives that are: Tim Wagner, GM of Lambda and API Gateway, gave a comprehensive update of his dominion within AWS ( SRV305 ) . This is the latest edition of our newsletter.

Serverless 40

Serverless Lambda AWS DevOps 40

The Netflix TechBlog

FEBRUARY 13, 2024

In this blog post, we will develop a statistical procedure to do just that, and describe the impact of these developments at Netflix. To learn more, see our previous blog post on Safe Updates of Client Applications. The remainder of this post discusses the first paper above, which was published at KDD ’22 (and available on ArXiV ).

Testing 239

Testing Software Software Metrics 239

Brendan Gregg

NOVEMBER 28, 2017

At Netflix, we've been using these technologies as they've been made available for instance types in the AWS EC2 cloud. Xen AWS 2017 In 2015, AWS launched c4, which used hardware virtualization for EBS volumes. With a solution in hand for network performance, the next target was storage. ## 6. 0% performance overhead.

Virtualization 40

Virtualization AWS Hardware Storage 40

The Symphonia

DECEMBER 6, 2017

Traffic shaping / canary deployment was pre-announced at Serverless Conf NYC in October, and this is now available. there’s no inline debugging available in the Lambda Console.) We haven’t tried out SAR yet since it was only pre-announced, but when we do we’ll give an update here, on the blog. Lambda@Edge Lambda@Edge?—?Lambda

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Serverless Lambda AWS Traffic 40

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

Dynatrace

JUNE 6, 2019

contributed the containerd container runtime to the Cloud Native Computing Foundation (CNCF) in 2017. Containerd monitoring support is now available in a Beta release for all Kubernetes-based platforms (version 1.11+). Containerd container support is available with the release of Dynatrace OneAgent version 1.169. Dynatrace news.

Monitoring 165

Monitoring Tuning Metrics Analytics 165

Dynatrace

MAY 6, 2021

Self-service update packages management is now available. You can safe your disk space and have more control over what’s available to your cluster . Linux: Amazon Linux AMI 2017.x. Resolved issue in which incorrect target versions were available for OneAgent update on host, host group, and environment level settings.

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Operating System AWS Metrics Storage 234

Dynatrace

FEBRUARY 25, 2021

since 2017, and many customers have used it with great success while we collected requirements for the next iteration of our Lambda extension. Much of what’s covered in this blog post is taken from that talk. A cold start occurs when there’s no instance of the requested Lambda function available.

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Lambda AWS Monitoring Serverless 224

The Netflix TechBlog

OCTOBER 28, 2021

Over the years, I followed the big data open-source community and Netflix tech blogs closely, and learned a lot about Netflix’s innovative engineering solutions and active contributions to the open-source ecosystem. Thanks to the migration to V2, we were able to improve data availability and usability for our consumers significantly.

Data Engineering 173

Data Engineering Engineering Big Data Software Engineering 173

Percona

AUGUST 4, 2023

In this blog post, we will look at the lifecycle and release management for MySQL and MariaDB servers — where we are now and relevant historical background. For MySQL, both releases are made by the same company (Oracle), follow the same version numbering, and the Enterprise version is a superset of what is available in Community.

Database 76

Database Servers Innovation Open Source 76

Brendan Gregg

SEPTEMBER 25, 2021

Checking those available: $ cat /sys/devices/system/clocksource/clocksource0/available_clocksource. html [60s checklist]: /Articles/Netflix_Linux_Perf_Analysis_60s.pdf [re:Invent talk]: [link] [recommendation]: [link] [Nitro]: /blog/2017-11-29/aws-ec2-virtualization-2017.html

Speed 126

Speed Java AWS Virtualization 126

Percona

APRIL 12, 2023

We’re equally convinced on both counts, but in this blog article, we’re focusing on why MongoDB is not open source. Let’s start with this: MongoDB is accurately referred to as source-available software. 2017: MongoDB goes public, trading as MDB. Since then, the stock price has increased more than 600%.

Open Source 79

Open Source Programming Database Servers 79

Randon ASCII

AUGUST 26, 2018

In April 2017 I gave myself the challenge of commuting to work using a different method every workday for a month – twenty ways in twenty days! 425 Business Magazine article that includes coverage of Commute Challenge 2017. KBCS radio interview about Commute Challenge 2017. Bike All Over blog post about Commute Challenge 2017.

Transportation 58

Transportation Media Traffic Availability 58

ACM Sigarch

APRIL 26, 2018

They unveiled their first two embedded AI chips fabricated with TSMC 40nm process in December 2017: “Journey 1.0 Image Processing Unit (IPU) is the Pixel Visual Core designed by Google and integrated in Google Pixel 2 released in 2017. In 2017, Intel Movidius announces its latest generation VPU, named Myriad X.

Hardware 99

Hardware Artificial Intelligence Architecture Google 99

Alex Russell

JANUARY 30, 2024

This split decision was available via last year's update , but was somewhat buried. The blog you're reading loads over a single connection in ~1.2 the term "smartphone dependence" has been coined to describe folks without other ways to access the increasing fraction of essential services only available through the internet.

Performance 90

Performance Network Mobile Speed 90

The Netflix TechBlog

MAY 1, 2019

In late 2017, we received some critical feedback from the brothers on the Stranger Things 2 audio mix: in some scenes, there was a reduced sense of where sounds are located in the 5.1-channel In this tech blog, we’ll dive deep into what high-quality audio is, how we deliver it to members worldwide, and why it’s so important to us.

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Engineering Network Media Entertainment 274

Dynatrace

OCTOBER 17, 2019

And with today’s increasing financial, availability, performance and innovation requirements meaning applications need to be geographically dispersed to constantly changing dynamic powerhouses, it has become simply not possible to provision, update, monitor and decommissions them by only leveraging manual processes.

Code 110

Code Infrastructure DevOps Serverless 110

Percona

JUNE 4, 2023

This blog post was originally published in November 2017 and was updated in June 2023. In this blog, we’ll provide a comparison between MariaDB vs. MySQL (including Percona Server for MySQL ). Scalability and replication options that can improve performance and high availability.

Open Source 52

Open Source Servers Storage Scalability 52

Percona

DECEMBER 21, 2023

In this blog post, I’ll dig into MySQL query optimization and show how MySQL uses indexes in cases of queries using sorting and limiting. Currently, the optimizer hint for the flag ‘ prefer_ordering_index’ is not yet available till version 8.2.0. Hopefully, MySQL will be adding this in the upcoming releases.

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Efficiency Database Open Source Performance 99

SQL Server According to Bob

DECEMBER 26, 2017

The feature is available in the latest SQL Server Management Studio (SSMS) release. Here is an example using the SQL Server SSMS 2017 against my SQL 2016 server. Bob Ward and I worked with our SQL Server Tool developers (thanks David) to enable ‘Q uick XE Trace ’ capabilities. Bob Dorr – Principal Software Engineer SQL Server.

Servers 40

Servers Software Engineering Engineering Availability 40

Percona

AUGUST 15, 2023

This blog was originally published in February 2017 and was updated in August 2023. MySQL replication provides high availability, load balancing, and data redundancy, enhancing system reliability. Replication also provides for data availability by enabling failover to a replica in case the primary server becomes unavailable.

Servers 52

Servers Database Availability Traffic 52

SQL Server According to Bob

DECEMBER 18, 2018

Durability is a cornerstone of any database system and starting with SQL Server 2017 on Linux Cumulative Update 6 (CU6), SQL Server on Linux enables “Forced Flush” behavior as described in this article , improving durability on non-Fua optimized systems. “Be Filesystem Type 1K-blocks Used Available Use% Mounted on.

Servers 90

Servers Media Cache Storage 90

Percona

SEPTEMBER 1, 2023

This blog was originally published in October 2017 and was updated in September 2023. In this blog post, we will talk about MongoDB sharding and walk through the main reasons why you should start a cluster (independent of the approach you have chosen). Learn more: View our webinar on How to Scale with MongoDB.

Best Practices 69

Best Practices Traffic Database Servers 69

MachMetrics

JUNE 30, 2021

Daniel An, Google, 2017. According to Google SOASTA research, 2017 the probability of page bounce rate increases with increasing page loading time, because it greatly improves the user experience. You can make beautiful-looking websites with the supports of millions of themes & plugins available. Gary Illyes, Google, 2017.

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Cache Speed Google Website 78

Percona

JANUARY 17, 2019

On multi-core machines – which is the majority of the hardware nowadays – and in the cloud, we have multiple cores available for use. The queries are similar to those I’ve used in older blog posts comparing MySQL and Apache Spark performance ( [link] ). With faster disks (i.e. AWS Aurora (based on MySQL 5.6)

Cache 45

Cache C++ AWS Airlines 45

Smashing Magazine

AUGUST 10, 2023

Even with all of the available tools at my disposal, I still find myself reaching for several of them. DebugBear explains this nicely in its blog: Simulated throttling provides low variability and makes test quick and cheap to run. The report, released in 2017, provides network data from sessions collected from real Chrome users.

Speed 81

Speed Monitoring Testing Network 81

SQL Performance

MAY 7, 2019

Back in 2014, I started a series of blog posts here to talk about specific wait types and what they do and don’t mean. These threads are created when SQL Server starts, depending on the number of processor cores available for SQL Server to use. If you’re reading this and thinking “what is he talking about?” then this post is for you.

Servers 40

Servers Azure Metrics Tuning 40

Speed Curve

OCTOBER 25, 2023

I joined the team in early 2017, and I'm blown away at how quickly the years have flown by. But Vitals have some limitations, such as: They're only available in Chromium-based browsers. These offers are available until December 31, 2023, so act soon! This month, SpeedCurve enters double digits with our tenth birthday.

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Benchmarking Metrics Website Monitoring 62

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. appeared first on Testsigma Blog. Why should you focus on Mobile Website Testing?

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Website Mobile Testing Strategy 98

Brendan Gregg

SEPTEMBER 25, 2021

Checking those available: $ cat /sys/devices/system/clocksource/clocksource0/available_clocksource xen tsc hpet acpi_pm $ cat /sys/devices/system/clocksource/clocksource0/current_clocksource xen Ok, so it's defaulted to xen, which we saw in the flame graph (the tower ends with pvclock_clocksource_read()).

Speed 40

Speed Java AWS Virtualization 40

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. Trying to support every version available will only lead to diminishing returns that hurt your company’s profit margins.

Mobile 54

Mobile Strategy Testing Efficiency 54

Alex Russell

FEBRUARY 21, 2023

The size of the release was expected in some corners, owing to the torrent of WebKit blog posts over the last few weeks: Jan. A 2017 attempt to revive it was shot down in 2018 by Apple engineers without evidence or data. 31st : Web Share changes Feb. 6th : Form participation for Web Components Feb. 13th : Declarative Shadow DOM Feb.

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Energy Games Engineering Design 79

Adrian Cockcroft

JANUARY 29, 2023

A later version of the slides is included in my Microservices Workshop deck from later that year, slides 168–200 ( pdf , keynote are available in GitHub.com/adrianco/slides ). What Is the Expected Distribution of Website Response Times?

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Lambda Latency Cache C++ 98

Testsigma

APRIL 27, 2020

According to the 2017 State of DevOps Report , those organizations that have employed DevOps practices spend 21 percent less time on unplanned work and rework, and 44 percent more time on new work which leads to higher efficiency. The post Why DevOps is Important for Modern Businesses appeared first on Testsigma Blog. Schedule a demo.

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DevOps Innovation Efficiency Testing 53

The Morning Paper

JUNE 6, 2019

The bulk of the paper is about the practicalities of running these algorithms at scale across a large fleet of devices: managing device availability, coordinating activity over unreliable networks and devices, building and deploying training workflows, and troubleshooting when things go wrong. Federated Averaging. ” Secure Aggregation.

Systems 71

Systems Design Google Servers 71

Testsigma

MARCH 23, 2022

That number dropped to 46% in the 2017 version of the report but hit a plateau in 2019, where it remained at 46%. Check out various codeless testing tools available now! The post Role of No-code/Low-code testing tools for Modern Agile QA teams appeared first on Testsigma Blog. No-code/Low-code testing tools helping Agile Teams.

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Testing Tools Code Testing Speed 52