Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. This was a weird problem to think about: Time itself had now become a resource and target of performance analysis. I'm including this step as a reminder for anyone following this kind of analysis. include <sys/time.h>

Speed 40

Speed Java AWS Virtualization 40

John McCalpin

APRIL 2, 2020

With a staff of slightly over 175 full-time employees (less than 1/2 in consulting roles), we must therefore focus on highly-leveraged performance analysis projects, rather than labor-intensive ones. Bounds on overlap are discussed near the end of the presentation, in the slides titled “Analysis” The approach is opportunistic.

Benchmarking 59

Benchmarking Performance Latency Architecture 59

Adrian Cockcroft

JANUARY 20, 2023

Here’s some predictions I’m making: Jack Dongarra’s efforts to highlight the low efficiency of the HPCG benchmark as an issue will influence the next generation of supercomputer architectures to optimize for sparse matrix computations. In early January a related paper was published by Satoshi Matsuoka et. petaflops, which is 0.8%

Architecture 52

Architecture Latency Benchmarking AWS 52

Percona

JUNE 22, 2023

Query performance Query performance is a key performance indicator (KPI) in MySQL, as it measures the efficiency and speed of query execution. That said, CPU or memory usage is not only limited to these two variable configurations, and further analysis is required to track what’s causing the usage spikes.

Performance 106

Performance Monitoring Traffic Database 106

Scalegrid

JANUARY 12, 2024

Key Takeaways A cloud workload encompasses any application or service running on a cloud infrastructure, facilitating tasks ranging from basic functions to advanced data analysis with the help of resources like databases, collaboration tools, and disaster recovery systems. Additionally. This also aids scalability down the line.

Cloud 130

Cloud Virtualization Storage Efficiency 130

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. 2] Data on mobile network evolution is sketchy, [3] and the largest error bars in this series' analysis continue to reside in this section.

Performance 90

Performance Network Mobile Speed 90

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. When the word “performance” is heard, most people immediately think of speed. What is Performance Testing? Peak response time: The longest response time.

Testing Tools 55

Testing Tools Best Practices Performance Testing Testing 55

Alex Russell

MARCH 6, 2021

Using a global ASP as a benchmark can further mislead thanks to the distorting effect of ultra-high-end prices rising while shipment volumes stagnate. Recall that single-core performance most directly translates into speed on the web. Today, either method returns a similar answer. Tap for a larger version. How bad is it?

Performance 124

Performance Network Cache Metrics 124

Percona

SEPTEMBER 1, 2023

This reduction in latency ensures that applications and websites provide a more rapid and responsive user experience. Enhanced User Experience Whether you operate an e-commerce platform, a content management system, or any other application reliant on MySQL, users will notice and appreciate the improved speed and responsiveness.

Tuning 52

Tuning Database Performance Hardware 52

Alex Russell

OCTOBER 22, 2017

Budgets are scaled to a benchmark network & device. JavaScript is the single most expensive part of any page in ways that are a function of both network capacity and device speed. Deciding what benchmark to use for a performance budget is crucial. Performance budgets are set early in the life of the project.

Performance 68

Performance Benchmarking Network Mobile 68

Rigor

OCTOBER 30, 2019

The Lighthouse Performance score is based on some of the most important performance metrics : First Contentful Paint, First Meaningful Paint, Speed Index, Time to Interactive, First CPU Idle, and Estimated Input Latency. Google Lighthouse is a great place to start for performance analysis. webperf #perfmatters Click To Tweet.

Google 51

Google Best Practices Energy Website 51

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. With request tracing and additional data from logs, events, metadata, and analysis, Edgar is able to show the flow of a request through our distributed system?

Latency 296

Latency Transportation Engineering Traffic 296

Smashing Magazine

JANUARY 11, 2021

You need a business stakeholder buy-in, and to get it, you need to establish a case study, or a proof of concept using the Performance API on how speed benefits metrics and Key Performance Indicators ( KPIs ) they care about. Note : If you use Page Speed Insights or Page Speed Insights API (no, it isn’t deprecated!),

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 6, 2020

You need a business stakeholder buy-in, and to get it, you need to establish a case study, or a proof of concept using the Performance API on how speed benefits metrics and Key Performance Indicators ( KPIs ) they care about. Treo Sites provides competitive analysis based on real-world data. Start Render time, Speed Index ).

Performance 145

Performance Cache Network Metrics 145