Brendan Gregg

JULY 4, 2021

It's an exciting time for developments in computer performance, not just for the BPF technology (which I often [write about]) but also for processors with 3D stacking and cloud vendor CPUs (e.g., This was a chance to talk about other things I've been working on, such as the present and future of hardware performance.

Performance 52

Performance Latency Hardware Storage 52

The Netflix TechBlog

OCTOBER 19, 2020

Reconstructing a streaming session was a tedious and time consuming process that involved tracing all interactions (requests) between the Netflix app, our Content Delivery Network (CDN), and backend microservices. Our engineering teams tuned their services for performance after factoring in increased resource utilization due to tracing.

Infrastructure 233

Infrastructure Transportation Storage Open Source 233

Smashing Magazine

AUGUST 10, 2023

Large preview ) I don’t know about you, but it often feels like I’m missing something when measuring page speed performance. Not the best way to get a high-level view of performance. I’ve had time to work with DebugBear and thought I’d give you a peek at it with some notes on my experience using it to monitor performance.

Speed 81

Speed Monitoring Testing Network 81

Brendan Gregg

SEPTEMBER 5, 2017

Here's some output from my zfsdist tool, in bcc/BPF, which measures ZFS latency as a histogram on Linux: # zfsdist. Tracing ZFS operation latency. As a performance engineer who does kernel tracing, I find the lack of an ID I can trace in the kernel to be pretty annoying. Hit Ctrl-C to end. ^C People rarely create them manually.

Virtualization 76

Virtualization AWS Engineering Hardware 76

Alex Russell

OCTOBER 22, 2017

TL;DR: performance budgets are an essential but under-appreciated part of product success and team health. We constrain ourselves to a real-world baseline device + network configuration to measure progress. — Alex Russell (@slightlylate) October 4, 2017. Performance budgets are set early in the life of the project.

Performance 68

Performance Benchmarking Network Mobile 68

All Things Distributed

NOVEMBER 13, 2018

Since then, AWS has added another PoP in Palermo in 2017. Lamborghini, the world-famous manufacturer of elite, luxury sports cars based in Italy, has been using AWS to reduce the cost of their infrastructure by 50 percent, while also achieving better performance and scalability. Today, their time-to-market is close to zero.

AWS 167

AWS Energy Automotive Traffic 167

Smashing Magazine

JANUARY 7, 2019

Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. Web performance is a tricky beast, isn’t it? How do we actually know where we stand in terms of performance, and what our performance bottlenecks exactly are? Vitaly Friedman.

Performance 103

Performance Cache Metrics Network 103

IO River

NOVEMBER 2, 2023

Delta Air Lines experienced a severe system outage in 2017, resulting in flight cancellations and delays across their network. If these monitoring tools face downtime, businesses could be left in the dark about the status and performance of their systems, preventing them from detecting and addressing issues promptly.

Availability 52

Availability Social Media Traffic Games 52

IO River

NOVEMBER 2, 2023

Delta Air Lines experienced a severe system outage in 2017, resulting in flight cancellations and delays across their network. If these monitoring tools face downtime, businesses could be left in the dark about the status and performance of their systems, preventing them from detecting and addressing issues promptly.

Availability 52

Availability Social Media Traffic Games 52

CSS - Tricks

APRIL 1, 2021

Site performance is potentially the most important metric. The better the performance, the better chance that users stay on a page, read content, make purchases, or just about whatever they need to do. Here’s the thing: performance is more than a one-off task. billion if the site slowed down by just one second. Lighthouse.

Cache 92

Cache Social Media Media Network 92

KeyCDN

JANUARY 31, 2019

Today we’re excited to announce that we’ve launched yet another POP location to help further supercharge our network’s content delivery speeds. The next closest active POP location to Bucharest was Istanbul which was still almost 900km away; this distance adds up in terms of latency. million people. What’s Next?

Internet 48

Internet Internet Ecommerce Speed 48

KeyCDN

OCTOBER 24, 2018

Today we’re excited to announce that we’ve launched yet another POP location to help further supercharge our network’s content delivery speeds. Although both countries are relatively close to one another, they are separated by a distance of approximately 500km, which adds up in terms of latency. What’s Next?

Internet 48

Internet Internet Speed Network 48

SQL Performance

SEPTEMBER 17, 2019

For years SSRS was bundled with the installation of SQL Server, which helped add to some of the confusion around licensing and support for the product, so beginning with SSRS 2017, the installation package for Reporting Services is a separate download. Disk latency for ReportServer and ReportServerTempDB are very important. Conclusion.

Tuning 67

Tuning Servers Database Best Practices 67

Brendan Gregg

AUGUST 8, 2017

If they are higher than your CPU count, then you might have a performance problem (it depends). 90491 N|rnberg (Germany) Consulting+Networking+Programming+etc'ing 42. His example of using a slower swap disk makes sense: by degrading the system's performance, the demand on the system (measured as running + queued) should increase.

Latency 111

Latency Metrics C++ Systems 111

O'Reilly Software

APRIL 4, 2018

A message-oriented implementation requires an efficient messaging backbone that facilitates the exchange of data in a reliable and secure way with the lowest latency possible. But when we run on a cluster of machines, how can we perform the resource management required by this new generation of distributed data-intensive applications?

Architecture 80

Architecture Scalability Google Operating System 80

Alex Russell

APRIL 29, 2021

Classics of the genre include: Apple's just focused on performance! The Performance Argument. As an engineer on a browser team, I'm privy to the blow-by-blow of various performance projects, benchmark fire drills, and the ways performance marketing (deeply) impacts engineering priorities. Steve & Tim's Close-up Magic.

Media 145

Media Games Education Engineering 145

All Things Distributed

OCTOBER 2, 2017

We were pushing the limits of what was a leading commercial database at the time and were unable to sustain the availability, scalability and performance needs that our growing Amazon business demanded. Performant – The service would need to be able to maintain consistent performance in the face of diverse customer workloads.

Internet 128

Internet Internet AWS Performance 128