Brendan Gregg

NOVEMBER 28, 2017

Virtualized in Software**: While this can support an unmodified guest OS, many operations are emulated and slow. It's using software and coordination between the hypervisor and guest to improve performance. Virtualized in Hardware**: Hardware support for virtualization, and near bare-metal speeds. I'd expect between 0.1%

Virtualization 40

Virtualization AWS Hardware Storage 40

Brendan Gregg

SEPTEMBER 25, 2021

As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. Measuring the speed of time Is there already a microbenchmark for os::javaTimeMillis()? Software-based clocksources could fix those issues and provide accurate monotonically-increasing time.

Speed 40

Speed Java AWS Virtualization 40

Brendan Gregg

FEBRUARY 28, 2023

References I've reproduced the references from my SREcon22 keynote below, so you can click on links: [Gregg 08] Brendan Gregg, “ZFS L2ARC,” [link] , Jul 2008 [Gregg 10] Brendan Gregg, “Visualizations for Performance Analysis (and More),” [link] , 2010 [Greenberg 11] Marc Greenberg, “DDR4: Double the speed, double the latency?

Performance 52

Performance Latency Cache Virtualization 52

Brendan Gregg

SEPTEMBER 5, 2017

They use third-party software like Docker or Kubernetes to simplify their administration. There are workarounds: I can use the perf_events cgroup ID, provided the container software is configuring it (they do). There have been security vulnerabilities, just like there are with any software. People rarely create them manually.

Virtualization 76

Virtualization AWS Engineering Hardware 76

Brendan Gregg

JULY 4, 2021

## References I've reproduced the talk references below, so you can click on links: - [Gregg 08] Brendan Gregg, “ZFS L2ARC,” [link] Jul 2008 - [Gregg 10] Brendan Gregg, “Visualizations for Performance Analysis (and More),” [link] 2010 - [Greenberg 11] Marc Greenberg, “DDR4: Double the speed, double the latency? Ford, et al., “TCP

Performance 52

Performance Latency Hardware Storage 52

Tasktop

JANUARY 18, 2022

years old when Marc Andreessen announced that Software is Eating the World. And some of those coops and interns are now full-time employees, helping us make a difference in a world where software is the basis for competitive differentiation. . Offload your brain to code at the speed of thought” . And what a book Mik authored.

Open Source 98

Open Source Speed Games Software 98

MachMetrics

DECEMBER 14, 2019

As you know, there are many metrics that determine a website’s page speed, and we can’t look at just one of them to determine how performant our site is. By analyzing the data from Backlinko.com and their Page Speed Stats article, we’ll look to answer these questions: What size should be a website be?

Best Practices 105

Best Practices Speed Mobile Google 105

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. India's speed test medians are moving quickly, but variance is orders-of-magnitude wide, with 5G penetration below 25% in the most populous areas.

Performance 90

Performance Network Mobile Speed 90

All Things Distributed

NOVEMBER 13, 2018

Since then, AWS has added another PoP in Palermo in 2017. Some of the largest enterprises and public sector organizations in Italy are using AWS to build innovations and power their businesses, drive cost savings, accelerate innovation, and speed time-to-market. We are also focused on supporting start-up companies across Italy.

AWS 167

AWS Energy Automotive Traffic 167

Percona

MARCH 30, 2023

In fact, the opposite is true, thanks to an active and vibrant global community of developers who work continuously to improve open source software. With open source database software, anyone in the general public can access the source code, read it, and modify it.

Open Source 73

Open Source Database Storage Scalability 73

Testsigma

MARCH 23, 2022

No-code/low-code automation tools are believed to solve the challenge of simplifying Testing for Agile QA teams at different levels, plus handling the growing complexity of the software itself. That number dropped to 46% in the 2017 version of the report but hit a plateau in 2019, where it remained at 46%. Exploratory Testing in Agile.

Testing Tools 52

Testing Tools Code Testing Speed 52

Percona

AUGUST 4, 2023

in 2017; after that, major releases came every one to two years, with MariaDB 10.6 Both MariaDB and MySQL came to the conclusion they need LTS versions and releases which focus on the speed of Innovation at the same time. (It is worth noting that MariaDB 5.2 and MariaDB 5.3 existed, too, while there were no matching MySQL versions.)

Database 77

Database Servers Innovation Open Source 77

Tim Kadlec

JANUARY 9, 2019

I recently profiled a page on a Pixel 2 (released in 2017), and an Alcatel 1x (released in 2018). Mbps download speed Jake Archibald mentioned his relative getting or the 0.8 Mbps download speed my in-laws get at their house. The two devices represent very different ends of the spectrum.

Performance 111

Performance Energy Internet Internet 111

Percona

SEPTEMBER 1, 2023

This blog was originally published in October 2017 and was updated in September 2023. Depending on the database size and on disk speed, a backup/restore process might take hours or even days! Depending on the database size and on disk speed, a backup/restore process might take hours or even days!

Best Practices 70

Best Practices Traffic Database Servers 70

Enprowess

JANUARY 12, 2022

Web development is evolving at a rapid speed with each passing year. And so, it optimizes the page loading speed and reduces the bounce rate. So it is convenient for all to use irrespective of internet speed and it works offline using cached data. Twitter Lite PWA : It was integrated as the standard User Interface in 2017.

Blockchain 59

Blockchain IoT Development Serverless 59

Testsigma

APRIL 27, 2020

Organizations that adopt DevOps are able to evolve and improve software products much faster when compared to those that use traditional software development processes. Software development practices these days require teams to deliver quality software continuously and reduce go-to-market timelines.

DevOps 53

DevOps Innovation Efficiency Testing 53

Rigor

SEPTEMBER 11, 2019

list of those who are making a significant impact on speeding up the web today. Rick is a software engineer on the Google Chrome team, “leading an effort to make the web just work for developers.” We at Rigor respect many web performance leaders around the world. Here is our (ever-growing!) Rachel Andrew. Rick Byers.

Performance 89

Performance Education Google Website 89

Brendan Gregg

JULY 15, 2019

The book includes over 150 BPF observability tools that you can run to find performance wins and troubleshoot software, and also shows you how to write your own. I learned firsthand how to bring beginners from different backgrounds up to speed. This course will be internal only: you'll need to join Netflix to attend my class!

Systems 111

Systems Performance Education Technology 111

The Morning Paper

JANUARY 19, 2020

STELLA: report from the SNAFU-catchers workshop on coping with complexity , Woods 2017, Coping with Complexity workshop. “Coping with complexity” is about as good a three-word summary of the systems and software challenges facing us over the next decade as I can imagine. A digression on complexity budgets.

C++ 50

C++ Systems Software Software 50

CSS - Tricks

APRIL 1, 2021

A 2017 study by Akamai says as much when it found that even a 100ms delay in page load can decrease conversions by 7% and lose 1% of their sales for every 100ms it takes for their site to load which, at the time of the study, was equivalent to $1.6 Speed is also something Google considers when ranking your website placement on mobile.

Cache 92

Cache Social Media Media Website 92

Enprowess

NOVEMBER 2, 2021

Wix – Achieved high speed and lightness within the development of configurable navigations and screen choices. Its first release was in May 2017 and was rarely used by developers, but it continues its speedy growth and becomes more and more popular in the developer community. What is Flutter? – An overview. Flutter Overview.

Development 52

Development Social Media Mobile Code 52

Tasktop

JUNE 25, 2020

When I joined Tasktop back in October of 2017, Tasktop was doing really well. We had the best integration platform for the software delivery toolchain —with truly differentiated capabilities, and a leadership position in the market. Tasktop Hub, the leading value stream integration solution for enterprise software delivery.

Metrics 52

Metrics Education Innovation Software 52

SQL Performance

JULY 16, 2019

Older Intel processors are more vulnerable to these exploits, and they suffer more of a performance decrease from existing software and firmware-level fixes. I wrote a number of blog posts about this back in January 2018, including these: Checking Your SQL Server Instance for Spectre/Meltdown Patches. There are many reasons!

Servers 46

Servers Hardware Architecture Retail 46

Testsigma

JANUARY 29, 2021

That’s not all, the global mobile traffic is expected to increase sevenfold between 2017 and 2022. Speed and Accuracy. Thus, automation tests can be run as an ‘integrated process’ rather than a ‘standalone’ process – a necessity where CI/CD has become an integral part of the software development & testing process.

Website 98

Website Mobile Testing Strategy 98

Sutter's Mill

FEBRUARY 13, 2017

Today, this makes concurrency more important than ever, because it delivers two things: It hides latencies we have to deal with and cannot remove, from disk I/O latency to speed-of-light network latency; and it makes our code responsive by not introducing needless latencies of our own even when we’re not hiding someone else’s latency.

Latency 51

Latency C++ Hardware Performance 51

Alex Russell

MARCH 31, 2022

Having worked on browsers for more than a decade, I think it would be shocking if a browser team agreed to more than 10 MiB for a feature like this, especially if it won't dramatically speed up the majority of existing websites. End Users may want better caching of resources to speed up browsing. WebKit even implemented the change.

Cache 82

Cache Government Traffic Network 82

Brendan Gregg

JULY 14, 2019

The book includes over 150 BPF observability tools that you can run to find performance wins and troubleshoot software, and also shows you how to write your own. I learned firsthand how to bring beginners from different backgrounds up to speed. This course will be internal only: you'll need to join Netflix to attend my class!

Systems 40

Systems Performance Education Technology 40

Smashing Magazine

JUNE 3, 2022

Thus, one of the two typeface x-height’s will seem to be larger in size, although it may be the same point size in the software. Are Typefaces Tools, Software, Objects, Products Or What? It is unlikely that they will be the same, as x-heights differ greatly. This is a question that is not easily answered.

Performance 110

Performance Design Best Practices Testing 110

SQL Server According to Bob

DECEMBER 10, 2018

If database creation speed is a concern use Instant File Initialization and allow the first writes to encounter the additional overhead. If the creation speed can be elongated you can enable –T1805 causing the database, data file space to be stamped during creation and growth. Bob Dorr – Principal Software Engineer SQL Server.

Servers 40

Servers Speed Database Software Engineering 40

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 103

Performance Cache Metrics Network 103

Brendan Gregg

AUGUST 8, 2017

Anyway, the following patch seems to make the load average much more consistent WRT the subjective speed of the system. I generated this using my offcputime tool from [bcc] (this tool needs eBPF features from Linux 4.8+), and my [flame graph] software: #./bcc/tools/offcputime.py awk '{ print $1, $2 / 1000 }' out.stacks |./FlameGraph/flamegraph.pl

Latency 111

Latency Metrics C++ Systems 111

SQL Server According to Bob

DECEMBER 31, 2018

Several years ago, I created a XEProfiler based loosely on the SSMS implementation, built as a 64-bit application to avoid the 32-bit memory limitations and using parallel activities to speed up the processing. Bob Dorr – Principal Software Engineer SQL Server. The XEProfiler Sample. Creates an empty DataGrid control.

Efficiency 40

Efficiency Code Servers Cache 40

All Things Distributed

OCTOBER 2, 2017

In support of Amazon Prime Day 2017, the biggest day in Amazon retail history, DynamoDB served over 12.9 In addition, DynamoDB Accelerator (DAX) a fully managed, highly available, in-memory cache further speeds up DynamoDB response times from milliseconds to microseconds and can continue to do so at millions of requests per second.

Internet 130

Internet Internet AWS Performance 130