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()? Theory (A) is most likely based on the frame widths in the flame graph. But I'm not completely sure.

Speed 52

Speed Java AWS Virtualization 52

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()? Theory (A) is most likely based on the frame widths in the flame graph. But I'm not completely sure.

Speed 40

Speed Java AWS Virtualization 40

DZone

FEBRUARY 27, 2021

Considering all aspects and needs of current enterprise development, it is C++ and Java which outscore the other in terms of speed. According to other comparisons [Google for 'Performance of Programming Languages'] spread over the net, they clearly outshine others in all speed benchmarks. Ahem, Slow!

Java 207

Java C++ Benchmarking Programming 207

Brendan Gregg

JULY 4, 2021

This was a chance to talk about other things I've been working on, such as the present and future of hardware performance. The video is on [youtube]: The slides are [here] or as a [PDF]: first prev next last / permalink/zoom I work on many areas of performance, but recently I've had a lot of demand to talk about BPF. Ford, et al., “TCP

Performance 52

Performance Latency Hardware Storage 52

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

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. As we said in 2021, " 4G is a miracle, 5G is a mirage." Regulatory roadblocks are still being cleared. You'll have to read on for what it is!

Performance 90

Performance Network Mobile Speed 90

Smashing Magazine

SEPTEMBER 3, 2021

2021-09-03T11:30:00+00:00. 2021-09-03T15:05:53+00:00. It can be hard to visualize the huge network of hardware that allows you to send a request for a page to a server and then receive a response back. Reducing Carbon Emissions On The Web. Reducing Carbon Emissions On The Web. Berwyn Powell. Large preview ). Taking Action.

Website 135

Website Energy Internet Internet 135

Smashing Magazine

OCTOBER 27, 2021

2021-10-27T10:00:00+00:00. 2021-10-27T10:16:44+00:00. Nowadays, hardware and software are designed to conduct eye-tracking studies for marketing , UX , psychological and medical research , gaming , and several other use cases. Eye-Tracking In Mobile UX Research. Eye-Tracking In Mobile UX Research. Mariana Macedo.

Mobile 112

Mobile Website Hardware Social Media 112

Testsigma

MAY 3, 2021

2021 alone is seeing 693 billion USD in revenue from mobile apps. What could be the best choice to cut down the costs and gain speed to move the pipeline faster than test automation? From operating systems to versions to hardware specs, mobile devices stand unique even after being billions in number.

Mobile 77

Mobile Testing Operating System Hardware 77

Testsigma

JULY 3, 2021

More control: While performing on-premise testing, organizations have more control over configurations, setup, hardware, and software. Honestly, this is not time-effective at all if you’re aiming for efficiency and speed. billion smartphones in 2021, and the same study proves that there will be an increase of 3.7

Cloud 57

Cloud Testing Storage DevOps 57

Smashing Magazine

AUGUST 22, 2021

2021-08-23T06:20:00+00:00. 2021-08-23T10:07:21+00:00. A Primer on Speed. Discussing performance and “speed” can quickly get complex, because many underlying aspects contribute to a web-page loading “slowly”. While a speed boost of one round trip is nice, it’s hardly amazing. Robin Marx. Did You Know?

Performance 106

Performance Network Latency Servers 106

Smashing Magazine

APRIL 29, 2021

2021-04-29T12:15:00+00:00. 2021-04-29T13:04:47+00:00. From Speed at Scale with Katie Hempenius and I at Google I/O. Device Pixel Ratio (DPR) represents how a CSS pixel is translated to physical pixels on a hardware screen. The Humble `<img>` Element And Core Web Vitals. Addy Osmani. Large preview ).

Media 145

Media Network Metrics Mobile 145

Smashing Magazine

APRIL 19, 2021

2021-04-19T08:30:00+00:00. 2021-04-19T08:35:54+00:00. Time to First Byte (TTFB), DOM Content Loaded, Start Render, Speed Index) — but from the experience of the user. An In-Depth Guide To Measuring Core Web Vitals. An In-Depth Guide To Measuring Core Web Vitals. Barry Pollard.

Google 140

Google Metrics Mobile Analytics 140

Smashing Magazine

JANUARY 21, 2021

2021-01-21T14:00:00+00:00. 2021-01-21T16:39:57+00:00. The reasons for it are numerous, but the most important one is a huge difference in network conditions and device hardware across the world. How We Improved SmashingMag Performance. How We Improved SmashingMag Performance. Vitaly Friedman.

Performance 145

Performance Cache Mobile Network 145