Dynatrace

JUNE 2, 2022

SRE is becoming an essential discipline in organizations that use DevOps (the combination of development and operations) and agile methodologies. But research shows that 60% of SREs find they spend most of their time building and maintaining automation code. But there’s still a long way to go.

DevOps 147

DevOps Innovation Engineering Benchmarking 147

Dynatrace

FEBRUARY 2, 2022

Architecting service-level objectives (SLOs) , along with service-level agreements and service-level indicators, is a great way for teams to evaluate and measure software performance that stays within error budgets. Pitfall 1: SLOs not aligned with your business goals. Pitfall 4: SLO thresholds that are too high or too low.

DevOps 195

DevOps Metrics Best Practices Latency 195

Alex Russell

JANUARY 30, 2024

And how much more HTML, CSS, and (particularly) JavaScript can a new project afford? Your audience may justify more stringent, or more relaxed, limits. 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.

Performance 90

Performance Network Mobile Speed 90

Smashing Magazine

JANUARY 11, 2021

Have we optimized enough with tree-shaking, scope hoisting, code-splitting, and all the fancy loading patterns with intersection observer, progressive hydration, clients hints, HTTP/3, service workers and — oh my — edge workers? Is it expensive JavaScript, slow web font delivery, heavy images, or sluggish rendering?

Performance 145

Performance Cache Media Metrics 145

Adrian Cockcroft

NOVEMBER 11, 2019

A resilient system continues to operate successfully in the presence of failures. There are many possible failure modes, and each exercises a different aspect of resilience. Hence, one way to reduce risk is to make systems more observable. Try to measure your mean time to respond (MTTR) for incidents.

Latency 52

Latency Engineering Systems Hardware 52

Adrian Cockcroft

NOVEMBER 11, 2019

A resilient system continues to operate successfully in the presence of failures. There are many possible failure modes, and each exercises a different aspect of resilience. Hence, one way to reduce risk is to make systems more observable. Try to measure your mean time to respond (MTTR) for incidents.

Latency 53

Latency Engineering Systems Hardware 53

Smashing Magazine

JANUARY 6, 2020

Is it worth exploring tree-shaking, scope hoisting, code-splitting, and all the fancy loading patterns with intersection observer, server push, clients hints, HTTP/2, service workers and — oh my — edge workers? Goal: Be at least 20% faster than your fastest competitor. Table Of Contents. Getting Ready: Planning And Metrics.

Performance 145

Performance Cache Network Metrics 145