Genodians.org - Stories around the Genode Operating System

Disk I/O optimization with focus on VBox6 - part 1
July 10 2025 by Josef Söntgen

This first post provides insight into Genode's block I/O stack as used by VBox6 VMs. It starts by recording the status-quo, examining the different layers involved in providing block I/O for VBox6 and shows initial rework steps to improve I/O throughput. Continue...
Using the Block::Request_stream API in the NVMe driver
March 19 2020 by Josef Söntgen

The NVMe driver component is switched to the Request_stream API in accordance to the road map, where consolidation of the Block-level components is scheduled for the upcoming 20.05 release. As a side-effect, things got a little bit simpler in the driver. Although being one of the first drivers to be converted to new the API it is late to the party nonetheless. Continue...

Disk I/O optimization with focus on VBox6 - part 1