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. Our team looks after the BaseAMI, kernel tuning, OS performance tools and profilers, and self-service tools like Vector. Casey Rosenthal (traffic and chaos) Models of Availability.

Tuning 52

Tuning AWS Best Practices Network 52

KeyCDN

AUGUST 15, 2019

Before you begin tuning your website or application, you must first figure out which metrics matter most to your users and establish some achievable benchmarks. Just because everything works perfectly during production testing doesn’t mean that will be the case when your website is flooded with traffic.

Testing Tools 55

Testing Tools Best Practices Performance Testing Testing 55

Smashing Magazine

NOVEMBER 8, 2021

As any seasoned team will know, building the storefront capabilities is one thing, and running it at a production scale that is able to absorb large waves of traffic, driven by flash sales or breakout social campaigns, is a whole other and massive operational challenge. “It Stay tuned for more in 2022! More after jump!

Cache 135

Cache Best Practices Strategy Servers 135

Scalegrid

JANUARY 25, 2024

Understanding Redis Performance Indicators Redis is designed to handle high traffic and low latency with its in-memory data store and efficient data structures. Best Practices for Redis Performance Tuning Optimizing memory allocation is essential for improving Redis’s performance.

Metrics 130

Metrics Monitoring Latency Cache 130

Percona

APRIL 17, 2023

In this blog post, we will discuss the best practices on the MongoDB ecosystem applied at the Operating System (OS) and MongoDB levels. We’ll also go over some best practices for MongoDB security as well as MongoDB data modeling. Spoiler alert: This post focuses on MongoDB 3.6.X tcp_fin_timeout = 30 net.ipv4.tcp_keepalive_intvl

Best Practices 52

Best Practices Design Tuning Database 52

Smashing Magazine

APRIL 11, 2022

However, developers with a deep understanding of the project may want to improve performance beyond that by doing some fine-tuning under the hood. It’s common knowledge that better website performance results in more conversions, more traffic, and better user experience. Fine-tuning JavaScript Resource Priorities.

Media 69

Media Tuning Metrics Google 69

Smashing Magazine

MARCH 19, 2021

At the moment, around 35% of our mobile traffic is on iOS , so those users wouldn’t be getting the images faster, but encoding a large JPEG image only, or encoding both AVIF and JPEG files would unnecessarily bloat HTML which we wanted to avoid. Smashing Podcast: Tune In And Get Inspired. Are Modern Best Practices Bad For The Web?

Mobile 140

Mobile Design Cache Code 140

Dynatrace

OCTOBER 25, 2022

With the distribution of Kubernetes, there is growing interest in using service mesh technology to add secure service-to-service communication and fine-grained management of ingress/egress traffic rules while keeping platform operations teams in the driver’s seat. How to prevent this with K8s best practices.

Efficiency 237

Efficiency Best Practices DevOps Open Source 237

Dynatrace

NOVEMBER 24, 2020

Well-Architected Reviews are conducted by AWS customers and AWS Partner Network (APN) Partners to evaluate architectures to understand how well applications align with the multiple Well-Architected Framework design principles and best practices. Stay tuned.

AWS 144

AWS Artificial Intelligence Best Practices Lambda 144

Dynatrace

JUNE 9, 2021

SAST tools identify problematic coding patterns that go against best practices. Web Application Firewall (WAF) helps protect a web application against malicious HTTP traffic. Positive filters are highly effective at blocking attacks but require constant tuning. Of these, WAF is much more commonly used today.

Open Source 182

Open Source Entertainment Tuning Internet 182

Percona

OCTOBER 18, 2023

Our goal with this post is to equip you with a comprehensive understanding of the steps, best practices, and pros and cons to ensure a smooth — and successful — transition to an open source database environment. Performance tuning The first critical move in performance tuning is query optimization.

Open Source 89

Open Source Database Hardware Strategy 89

Brendan Gregg

SEPTEMBER 25, 2021

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. Amazon even provides an official [recommendation] (2021): "For EC2 instances launched on the AWS Xen Hypervisor, it's a best practice to use the tsc clock source.

Speed 126

Speed Java AWS Virtualization 126

Rigor

SEPTEMBER 3, 2019

It’s about ensuring that your front-end is also working perfectly, that your site can deliver a delightful experience to your users or customers, and that it is functional – even when it’s experiencing up to seven or more times the typical traffic load. Traffic patterns outside of normal [RUM or Analytics].

Website 74

Website Cache Ecommerce Traffic 74

Smashing Magazine

SEPTEMBER 6, 2021

You would, however, be hard-pressed even today to find a good article that details the nuanced best practices. This is because, as I stated in the introduction to part 1 , much of the early HTTP/2 content was overly optimistic about how well it would work in practice, and some of it, quite frankly, had major mistakes and bad advice.

Network 104

Network Servers Cache Traffic 104

Brendan Gregg

SEPTEMBER 25, 2021

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. Amazon even provides an official [recommendation] (2021): "For EC2 instances launched on the AWS Xen Hypervisor, it's a best practice to use the tsc clock source.

Speed 40

Speed Java AWS Virtualization 40

Smashing Magazine

AUGUST 9, 2021

For example, if the device is a firewall, it might be configured to block all traffic containing (unknown) extensions. In practice, it turns out that an enormous number of active middleboxes make certain assumptions about TCP that no longer hold for the new extensions. We will discuss these features in more depth later in this article.

Transportation 145

Transportation Internet Internet Network 145

Smashing Magazine

AUGUST 22, 2021

As such, tuning congestion logic is usually only done by a select few developers, and evolution is slow. As such, one best practice or optimization can end up undoing another. Additionally, QUIC enforces security and privacy best practices in the background, which benefit all users everywhere. And it gets worse.

Performance 105

Performance Network Latency Servers 105