Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

Performance 52

Performance Latency Cache Virtualization 52

CSS Wizardry

OCTOBER 16, 2023

In this post, I’m going to break these processes down into each of: ? Plotted on the same horizontal axis of 1.6s, the waterfalls speak for themselves: 201ms of cumulative latency; 109ms of cumulative download. 4,362ms of cumulative latency; 240ms of cumulative download. Read the complete test methodology. It gets worse.

Cache 291

Cache Latency Strategy Speed 291

CSS - Tricks

JULY 25, 2019

In this article, we uncover how PageSpeed calculates it’s critical speed score. It’s no secret that speed has become a crucial factor in increasing revenue and lowering abandonment rates. Now that Google uses page speed as a ranking factor, many organizations have become laser-focused on performance. Speed Index.

Google 71

Google Engineering Speed Mobile 71

Tim Kadlec

APRIL 18, 2019

I remember how, later on, a common question I would get in after giving performance-focused presentations was: “Is any of this going to matter when 4G is available?” Even if it is 4G (5G, or whatever else) that doesn’t exactly guarantee you’ll be getting the amazing, theoretical speeds promised.

Network 61

Network Speed Internet Internet 61

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. What about short-lived processes, like a service restarting in a loop? Measuring the speed of time Is there already a microbenchmark for os::javaTimeMillis()? What on Earth is Ubuntu doing that results in 30% higher CPU time!?

Speed 126

Speed Java AWS Virtualization 126

KeyCDN

SEPTEMBER 12, 2019

When it comes to marketing your website, there are a lot of different aspects to consider, such as speed, SEO, conversation rates, bounce rate, and many others. An easy way to compress images is with our image processing service that happens to also be fully integrated into our existing network.

Social Media 106

Social Media Media Google Website 106

The Morning Paper

SEPTEMBER 8, 2019

I’ve been excited about the potential for approximate query processing in analytic clusters for some time, and this paper describes its use at scale in production. These clusters are in high demand and approximate query processing both saves their users time and lightens the overall load on the cluster. What are all these jobs doing??

Big Data 57

Big Data Analytics Latency Azure 57

Scalegrid

DECEMBER 21, 2023

Identifying key Redis® metrics such as latency, CPU usage, and memory metrics is crucial for effective Redis monitoring. To monitor Redis® instances effectively, collect Redis metrics focusing on cache hit ratio, memory allocated, and latency threshold. Setting Up RedisInsight Getting RedisInsight up and running is a simple process.

Strategy 130

Strategy Monitoring Latency DevOps 130

Smashing Magazine

AUGUST 20, 2021

Jamstack CMS: The Past, The Present and The Future. Jamstack CMS: The Past, The Present and The Future. While developers are an essential part of the Jamstack, they’re often heavily involved in the content publishing process. Mike Neumegen. 2021-08-20T08:00:00+00:00. 2021-08-20T09:19:47+00:00. Large scale blogs.

Ecommerce 139

Ecommerce Website Government Internet 139

Scalegrid

MARCH 14, 2024

Defining Hybrid Cloud Strategy The decision-making process about where to situate data and applications is vital to any hybrid cloud solution. Features enabling automation and orchestration should be present to simplify operations, minimize mistakes, and expedite data integration. It should offer user-friendly operation.

Strategy 130

Strategy Cloud Artificial Intelligence Infrastructure 130

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. What about short-lived processes, like a service restarting in a loop? Measuring the speed of time Is there already a microbenchmark for os::javaTimeMillis()? What on Earth is Ubuntu doing that results in 30% higher CPU time!?

Speed 52

Speed Java AWS Virtualization 52

The Netflix TechBlog

NOVEMBER 3, 2022

In the time since it was first presented as an advanced Mesos framework, Titus has transparently evolved from being built on top of Mesos to Kubernetes, handling an ever-increasing volume of containers. This blog post presents how our current iteration of Titus deals with high API call volumes by scaling out horizontally.

Cache 224

Cache Latency Traffic Systems 224

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. What about short-lived processes, like a service restarting in a loop? Measuring the speed of time Is there already a microbenchmark for os::javaTimeMillis()? What on Earth is Ubuntu doing that results in 30% higher CPU time!?

Speed 40

Speed Java AWS Virtualization 40

The Netflix TechBlog

SEPTEMBER 2, 2020

Edgar helps Netflix teams troubleshoot distributed systems efficiently with the help of a summarized presentation of request tracing, logs, analysis, and metadata. When a problem occurs, we put on our detective hats and start our mystery-solving process by gathering evidence. by Elizabeth Carretto Everyone loves Unsolved Mysteries.

Latency 296

Latency Transportation Engineering Traffic 296

Percona

MARCH 29, 2023

When this data block is read, it decompresses it in memory and presents it to the incoming request. When data is written to disk, MongoDB compresses it with a specified block compression method and then writes it to disk. Block compression can improve performance by allowing data to be read and written in smaller chunks.

Storage 108

Storage Network Open Source Latency 108

Scalegrid

JANUARY 12, 2024

While managing cloud workloads offers numerous benefits, it also presents several challenges such as security risks, compliance issues, and resource optimization, which can be addressed effectively with tools like ScaleGrid, offering features like encryption, disaster recovery, and real-time resource optimization for diverse databases.

Cloud 130

Cloud Virtualization Storage Efficiency 130

Sutter's Mill

FEBRUARY 13, 2017

Tue-Thu Apr 25-27: High-Performance and Low-Latency C++ (Stockholm). On April 25-27, I’ll be in Stockholm (Kista) giving a three-day seminar on “High-Performance and Low-Latency C++.” If you’re interested in attending, please check out the links, and I look forward to meeting and re-meeting many of you there.

Latency 51

Latency C++ Hardware Performance 51

Dynatrace

APRIL 6, 2022

Observability can identify the baseline user experience and allow teams to improve it by optimizing page load times or reducing latency. Cloud environments present IT complexity challenges that don’t exist in on-premises data centers. Why full-stack observability matters. Accelerate and automate the CI/CD pipeline.

DevOps 230

DevOps Innovation Infrastructure Analytics 230

Smashing Magazine

AUGUST 3, 2023

Largest Contentful Paint (LCP) LCP measures the perceived load speed of a webpage from a user’s perspective. However, achieving a good LCP score is often a multi-faceted process that involves optimizing several stages of loading and rendering. Each stage has its unique challenges and potential pitfalls, as other case studies show.

Performance 74

Performance Cache Traffic Metrics 74

The Netflix TechBlog

MARCH 13, 2020

Compared to the most recent master version of libaom (AV1 reference software), SVT-AV1 is similar in compression efficiency and at the same time achieves significantly lower encoding latency on multi-core platforms when using its inherent parallelization capabilities. The testing has been performed on Windows, Linux, and macOS platforms.

Open Source 154

Open Source Efficiency C++ Speed 154

CSS Wizardry

MARCH 3, 2019

This means that, if the Cache-Control: max-age=60 header is still present, the cached file’s 60 seconds starts again. If, however, there wasn’t a new file on the server, we’ll bring back a 304 header, no new file, but an entire roundtrip of latency. We can completely cut out the overhead of a roundtrip of latency. FAQs Page.

Cache 264

Cache Latency Strategy Servers 264

John McCalpin

APRIL 2, 2020

This was a keynote presentation at the “2nd International Workshop on Performance Modeling: Methods and Applications” (PMMA16), June 23, 2016, Frankfurt, Germany (in conjunction with ISC16 ). This data is from the 2007 presentation.

Benchmarking 59

Benchmarking Performance Latency Architecture 59

Alex Russell

MAY 9, 2022

This is a complex topic, but to borrow from a recent post , web performance expands access to information and services by reducing latency and variance across interactions in a session, with a particular focus on the tail of the distribution (P75+). Consistent performance matters just as much as low average latency.

Performance 86

Performance Latency Metrics Engineering 86

Adrian Cockcroft

JANUARY 20, 2023

switches to connect processing nodes, pooled memory and I/O resources into very large coherent fabrics within a rack, and use Ethernet between racks. I have always been particularly interested in the interconnects and protocols used to create clusters, and the latency and bandwidth of the various offerings that are available.

Architecture 52

Architecture Latency Benchmarking AWS 52

Alex Russell

JANUARY 30, 2024

HTML, CSS, images, and fonts can all be parsed and run at near wire speeds on low-end hardware, but JavaScript is at least three times more expensive, byte-for-byte. Meanwhile, budget segment devices have finally started to see improvement ( as this series predicted ), thanks to hand-me-down architecture and process node improvements.

Performance 90

Performance Network Mobile Speed 90

Dotcom-Montior

MAY 12, 2020

Websites are now more than just the storage and retrieval of information to present content to users. A request will be sent from the client-side and an HTTP check waits on the server port to get the message, process it, and then send back the response. Network latency. Processing and generating the response. Wi-Fi usage.

Monitoring 63

Monitoring Entertainment Hardware Latency 63

Smashing Magazine

AUGUST 22, 2021

A Primer on Speed. Discussing performance and “speed” can quickly get complex, because many underlying aspects contribute to a web-page loading “slowly”. Because we are dealing with network protocols here, we will mainly look at network aspects, of which two are most important: latency and bandwidth. Congestion Control.

Performance 106

Performance Network Latency Servers 106

Adrian Cockcroft

NOVEMBER 18, 2019

OPN304 Learnings from migrating a service from JDK 8 to JDK 11 AWS Lambda improved latency by migrating to JDK 11 with Amazon Corretto. OPN402 Firecracker open-source innovation Since Firecracker’s release at re:Invent 2018, several open-source teams have built on it, while AWS has continued investing in Firecracker’s speed.

Open Source 40

Open Source AWS Lambda Serverless 40

Adrian Cockcroft

NOVEMBER 18, 2019

OPN304 Learnings from migrating a service from JDK 8 to JDK 11 AWS Lambda improved latency by migrating to JDK 11 with Amazon Corretto. OPN402 Firecracker open-source innovation Since Firecracker’s release at re:Invent 2018, several open-source teams have built on it, while AWS has continued investing in Firecracker’s speed.

Open Source 40

Open Source AWS Lambda Serverless 40

Abhishek Tiwari

NOVEMBER 3, 2018

When it comes to innovation, most of CMS solutions are constrained by their legacy architecture (read strong coupling between content management and content presentation) which makes it difficult to serve content to new types of emerging channels such as apps and devices. Without knowing we created a JAMstack for our client.

Systems 63

Systems Cache Website Network 63

Alex Russell

MARCH 6, 2021

Advances in browser content processing. This 2GiB RAM, Android 9 stalwart features the all-too classic lines of a Quad-core A53 (1.4GHz, small mercies) CPU, tastefully presented in a charming 5.5" Recall that single-core performance most directly translates into speed on the web. Modern network performance and availability.

Performance 124

Performance Network Cache Metrics 124

All Things Distributed

NOVEMBER 29, 2017

As there are few individuals with this expertise, an easier process presents a significant opportunity for companies who want to accelerate their ML usage. After the dataset is created, you must scale the processing to handle the data, which can often be a blocker. You then specify the type and number of ML instances.

Tuning 94

Tuning AWS Scalability Infrastructure 94

Dotcom-Montior

MARCH 6, 2022

It assists in identifying where important events happened during the loading process. Waterfall charts within the Dotcom-Monitor platform can help users identify where important events happened during the page load process. To understand the speed of your website, waterfall diagrams are used. The time it takes to download files.

Performance 52

Performance Cache Website Speed 52

HammerDB

OCTOBER 18, 2019

cpupower frequency-info analyzing CPU 0: driver: intel_pstate CPUs which run at the same hardware frequency: 0 CPUs which need to have their frequency coordinated by software: 0 maximum transition latency: Cannot determine or is not supported. The governor "powersave" may decide which speed to use within this range.

Benchmarking 63

Benchmarking Performance Hardware C++ 63

The Morning Paper

JANUARY 12, 2020

Many practical real-world problems have large and continuous state and action spaces… these can present serious issues for traditional RL algorithms. Constrained MDPs (Markov Decision Processes) allow constraints to be specified over states and actions. High-dimensional state and action spaces. ” Safety constraints.

Programming 43

Programming Systems Efficiency Network 43

Smashing Magazine

MAY 20, 2020

This metric is important, but quite vague because it can include anything — starting from server rendering time and ending up with latency problems. Use Of Multiple Processes. instance spawned in each process fork ( instead of reusing the same one which will lead to growing RAM consumption). Array(cors)].map(()

Performance 99

Performance Metrics Best Practices Code 99

Dotcom-Montior

MAY 6, 2020

It assists in identifying where important events happened during the loading process. Waterfall charts within the Dotcom-Monitor platform can help users identify where important events happened during the page load process. Performance and speed of a web site plays a tremendous role. The time it takes to download files.

Performance 53

Performance Cache Website Speed 53