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. As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI.

Speed 52

Speed Java AWS Virtualization 52

Dynatrace

AUGUST 30, 2019

Reducing CPU Utilization to now only consume 15% of initially provisioned hardware. The second example was around web-server threads, which turned out that the team ran with default settings for Apache (200 worker threads) which was too low for the traffic the government agencies are receiving during business hours.

Cache 198

Cache Architecture Database Government 198

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. As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. But I'm not completely sure.

Speed 40

Speed Java AWS Virtualization 40

Dotcom-Montior

MAY 12, 2020

Websites are now more than just the storage and retrieval of information to present content to users. Hardware resources. Monitoring of the network for the applications using the network, traffic, and bandwidth allocations can improve the network latency. Present-day applications make more much use of the database.

Monitoring 63

Monitoring Entertainment Hardware Latency 63

Testsigma

MAY 19, 2021

Thinking back on how SDLC started and what it is today, the only reasons for its success can be accounted to efficiency, speed and most importantly automation – DevOps and cloud-based solutions can be considered major contributors here (after all DevOps is 41% less time-consuming than traditional ops ). . Business Requirement.

DevOps 59

DevOps Cloud Artificial Intelligence Infrastructure 59

Alex Russell

MARCH 6, 2021

Hardware Past As Performance Prologue. 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. So what did $150USD fetch in 2019?

Performance 124

Performance Network Cache Metrics 124

Smashing Magazine

APRIL 19, 2021

Time to First Byte (TTFB), DOM Content Loaded, Start Render, Speed Index) — but from the experience of the user. This is applicable to pages that receive little to no traffic, so small sites without field data don’t need to be worried. At the top is the big Lighthouse performance score out of 100.

Google 141

Google Metrics Mobile Analytics 141

Smashing Magazine

MAY 20, 2020

This saves clients traffic — sometimes traffic which the client is paying for. It also allows the project to be loaded faster, which is pretty important in regards to the growing mobile share and new markets with slow connection speeds and fragmented internet coverage. Package For Measuring Library Size.

Performance 99

Performance Metrics Best Practices Code 99

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”. It is physically limited by the speed of light or, practically, how fast signals can travel in wires or in the open air. also “only” take two round trips ((b) is rarely shown).

Performance 106

Performance Network Latency Servers 106

Brendan Gregg

SEPTEMBER 5, 2017

Linux has been adding tracing technologies over the years: kprobes (kernel dynamic tracing), uprobes (user-level dynamic tracing), tracepoints (static tracing), and perf_events (profiling and hardware counters). Just from a quick search, see this presentation PDF , which digs into oops message components.

Virtualization 76

Virtualization AWS Engineering Hardware 76

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. Start Render time, Speed Index ). Treo Sites provides competitive analysis based on real-world data.

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

JANUARY 7, 2019

You need a business stakeholder buy-in, and to get it, you need to establish a case study on how speed benefits metrics and Key Performance Indicators ( KPIs ) they care about. Note : If you use Page Speed Insights (no, it isn’t deprecated), you can get CrUX performance data for specific pages instead of just the aggregates.

Performance 104

Performance Cache Metrics Network 104