article thumbnail

The Speed of Time

Brendan Gregg

Measuring the speed of time Is there already a microbenchmark for os::javaTimeMillis()? I love short benchmarks like this as I can disassemble the resulting binary and ensure that the compiled instructions match my expectations, and the compiler hasen't messed with it. ## 6. Microbenchmark os::javaTimeMillis() on both systems.

Speed 126
article thumbnail

The Speed of Time

Brendan Gregg

Measuring the speed of time Is there already a microbenchmark for os::javaTimeMillis()? I love short benchmarks like this as I can disassemble the resulting binary and ensure that the compiled instructions match my expectations, and the compiler hasen't messed with it. Microbenchmark os::javaTimeMillis() on both systems.

Speed 52
Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Trending Sources

article thumbnail

The Speed of Time

Brendan Gregg

Measuring the speed of time Is there already a microbenchmark for os::javaTimeMillis()? I love short benchmarks like this as I can disassemble the resulting binary and ensure that the compiled instructions match my expectations, and the compiler hasen't messed with it. ## 7. Microbenchmark os::javaTimeMillis() on both systems.

Speed 40
article thumbnail

Web Performance Bookshelf

Rigor

Yet, we wanted to put together our list of the top web performance books for anyone who cares about speed of the web and would like to explore the timeline of web performance engineering milestones over nearly two decades through the lens of published books. Site speed & SEO go hand in hand. Speed Up Your Site. Still good.

article thumbnail

The Performance Inequality Gap, 2024

Alex Russell

JavaScript-Heavy # Since at least 2015, building JavaScript-first websites has been a predictably terrible idea, yet most of the sites I trace on a daily basis remain mired in script. [1] 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.

article thumbnail

Top500 list: a brief introduction

PDC

It ranks the world’s 500 most powerful supercomputers based on their performance as measured by the Linpack benchmark. However, the speed of a computer in FLOPS can vary depending on the number of bits used in the representation of the floating point numbers in the tests. You may have heard of the Top500 list.

Energy 40
article thumbnail

Is Intel Doomed in the Server CPU Space?

SQL Performance

The Tick-Tock release cycle basically fell apart by about 2015 , as Intel was unable to move from a 14nm manufacturing process to a 10nm manufacturing process. We won't know the actual single-threaded performance of these processors until they have been released and benchmarked by neutral third-party testers.

Servers 46