Marko Topolnik

Marko Topolnik, PhD, has been a Java professional since 2001. His current position is in the core team of Hazelcast Jet, where he co-wrote the core execution engine based on coroutine-like suspendable code that runs many concurrent tasks on a fixed thread pool. Marko is also an active contributor on Stack Overflow on the kotlin-coroutines tag.

5 articles

Mar 25, 2021 Marko Topolnik

Billion Events Per Second, Millisecond Latency: Giga Streaming Analytics

On a scientific paper on Hazelcast Jet, its architecture based on symmetric, data-local, non-blocking distributed event processing.

Performance

Aug 5, 2020 Marko Topolnik

Sub-10 ms Latency in Java: Concurrent GC with Green Threads

Same problem from the opposite angle: what can we do to help Hazelcast Jet achieve the best performance available on a JVM?

Performance

Jun 23, 2020 Marko Topolnik

Performance of Modern Java on Heavy Workloads: Low-Latency Rematch

This is a followup on the series analyzing performance of modern JVMs on workloads relevant to the use case of real-time stream processing.

Performance

Jun 9, 2020 Marko Topolnik

Performance of Modern Java on Data-Heavy Workloads: Batch Processing

Let's consider the experimental low-latency collectors in this round, since their very short GC pauses have no effect on the test result.

Performance

Jun 9, 2020 Marko Topolnik

Performance of Modern Java on Workloads: Real-Time Streaming

Hazelcast put new Java technologies to the test on workloads typical for their distributed stream processing engine, Hazelcast Jet.

Performance