One can only improve what can be reliably measured. To assert that Jetty’s performance is as good as it can be, doesn’t degrade over time and to facilitate future optimization work, we need to be able to reliably measure its performance. The primary goal The Jetty project wanted an automated Read more…
The Jetty Project just released the Jetty Load Generator, a Java 11+ library to load-test any HTTP server, that supports both HTTP/1.1 and HTTP/2. The project was born in 2016, with specific requirements. At the time, very few load-test tools had support for HTTP/2, but Jetty’s HttpClient did. Furthermore, few Read more…
“Project Loom aims to drastically reduce the effort of writing, maintaining, and observing high-throughput concurrent applications that make the best use of available hardware. … The problem is that the thread, the software unit of concurrency, cannot match the scale of the application domain’s natural units of concurrency — a Read more…
Since Loom is now available in OpenJDK 16 early access includes, we thought it was a good time to test out some of the amazing claims that have been made for Duke’s new opaque clothing that has been woven by Loom! Spoiler – Duke might not be naked, but its attire could be a tad see-through!
Context The Jetty HTTP client internally uses a connection pool to recycle HTTP connections, as they are expensive to create and dispose of. This is a well-known pattern that has proved to work well. While this pattern brings great benefits, it’s not without its shortcomings. If the Jetty client is Read more…
Jetty 9 introduced the Eat-What-You-Kill[n]The EatWhatYouKill strategy is named after a hunting proverb in the sense that one should only kill to eat. The use of this phrase is not an endorsement of hunting nor killing of wildlife for food or sport.[/n] execution strategy to apply mechanically sympathetic techniques to the Read more…
Jetty’s venerable MultiPartInputStreamParser for parsing MultiPart form-data has been deprecated and replaced by the much more efficient MultiPartFormInputStream, based on a new MultiPartParser. This is much faster, but less forgiving of non-compliant format. So we have implemented a legacy mode to access the old parser, but with enhancements to make Read more…
This is going to be a blog of mixed metaphors as I try to explain how we avoid thread starvation when we use Jetty’s eat-what-you-kill[n]The EatWhatYouKill strategy is named after a hunting proverb in the sense that one should only kill to eat. The use of this phrase is not Read more…
Jetty 9.3.0 is almost ready and Release Candidate 1 is available for download and testing! So this is just a quick blog to introduce you to what is new and encourage you to try it out! HTTP2 The headline feature in Jetty-9.3 is HTTP/2 support. This protocol is now a Read more…
I had the pleasure to speak at the GeeCON 2015 Conference in Kraków, Poland, where I presented a HTTP/2 session and a new session about the G1 garbage collector (slides below). G1 Garbage Collector: Details and Tuning from Simone Bordet I have to say that GeeCON has become one of Read more…