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SKP's Java/Java EE Gotchas: Clash of the Titans, C++ vs. Java!

DZone

One, by researching on the Internet; Two, by developing small programs and benchmarking. Considering all aspects and needs of current enterprise development, it is C++ and Java which outscore the other in terms of speed. JAVA SOLUTION (Will Be Uploaded Later). Ahem, Slow! It is the number written on your coin.

Java 207
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Scaling Benchmarks With More Robust UseNUMA Flag in OpenJDK

DZone

What happens when you run a Java application without checking your hardware configuration? Obviously, your application lags in terms of performance. What Is NUMA?

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The Return of the Frame Pointers

Brendan Gregg

2014: Java in Flames Broken Java Stacks (2014) When I joined Netflix in 2014, I found Java's lack of frame pointer support broke all application stacks (pictured in my 2014 Surge talk on the right). For a while I was promoting the use of Canonical's libc6-prof, which was libc6 with frame pointers.

Java 145
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An open-source benchmark suite for microservices and their hardware-software implications for cloud & edge systems

The Morning Paper

An open-source benchmark suite for microservices and their hardware-software implications for cloud & edge systems Gan et al., A typical architecture diagram for one of these services looks like this: Suitably armed with a set of benchmark microservices applications, the investigation can begin! Hardware implications.

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The Speed of Time

Brendan Gregg

There's no Java stack—there should be a tower of green Java methods—instead there's only a single green frame or two. This is how Java flame graphs looked at the time. Later that year I prototyped the c2 frame pointer fix that became -XX:+PreserveFramePointer, which fixes Java stacks in these profiles.

Speed 126
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Further improved handling and reliability of OneAgent deployments

Dynatrace

Dynatrace OneAgent deployment and life-cycle management are already widely considered to be industry benchmarks for reliability and efficiency. Please note that the OneAgent update process may require that the injected OneAgent modules (for Java,Net, Apache, etc.) Dynatrace news.

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Compress objects, not cache lines: an object-based compressed memory hierarchy

The Morning Paper

Looking across a set of eight Java benchmarks, we find that only two of them are array dominated, the rest having between 40% to 75% of the heap footprint allocated to objects, the vast majority of which are small. Consider a B-Tree node from the B-tree Java benchmark: Uncompressed, it’s memory layout looks like (a) below.

Cache 61