Red Hat Research Quarterly

Toke Høiland-Jørgensen

About the author

Toke Høiland-Jørgensen is a senior principal kernel engineer at Red Hat working on networking and BPF. He holds a PhD on the topic of network performance and bufferbloat.

Articles by this author

The right idea at the right time: networking researchers use open source for real-world results

We invited Red Hat Principal Kernel Engineer Toke Høiland-Jørgensen to interview Anna Brunström, currently a Full Professor and Research Manager for the Distributed Systems and Communications Research Group at Karlstad University, Sweden. Prof. Brunström has a background in distributed systems, but her main area of work over the last years has been in computer networking. Their wide-ranging conversation covers programmable networking, open data, diversity in IT fields, and more.

Programmable networking project reports on its first year of progress

Researchers from Red Hat and Karlstad University, Sweden, have recently finished their first year of work on enhancing the performance of the eXpress Data Path (XDP), a data path integrated into the Linux kernel that permits flexible programmable networking. The group’s year one report, “Building the next generation of programmable networking—powered by Linux,” was released […]

New research on eBPF and security begins at Karlstad University

January 1, 2022, marked the official start of a new three-year research collaboration between Red Hat Research and Karlstad University around eBPF and security in the Linux kernel. eBPF is a technology that supports running sandboxed code in the running Linux kernel without having to change the source code of the kernel itself. PhD student […]

Passive network monitoring with eBPF

Passive network latency monitoring offers a more holistic view of network performance without creating additional traffic. Researchers are developing a new tool to enable it efficiently. Network latency is a determining factor in users’ Quality of Experience (QoE) for applications including web searches, live video, and video games. That’s why network latency monitoring is critical. […]

Monitoring latency within the end host network stack

Meet netstacklat, an open source eBPF tool developed with university researchers to provide critical visibility into host network latency and enable faster response times. Any application that communicates across the network (which today is most applications) is impacted by network latency, with high latency translating directly to worse application response times, which in turn leads […]