Haiku Activity and Contract Report, July 2024

The Haiku Activity & Contract Report for July 2024 details significant performance improvements and system stability enhancements made to the Haiku operating system. Key updates include the implementation of true vectored I/O for disk devices, which reduces overhead during read and write operations. The built-in CPU time profiler was fixed to provide accurate profiling data, aiding in the identification of bottlenecks. Improvements were made to avoid delays caused by the device_manager lock during application startup, particularly on systems with multiple USB devices. The report also highlights the addition of ELF DT_GNU_HASH support for faster symbol lookup, enhancements to mmap functionality for better memory management, and optimizations in network buffer handling that increased throughput. Other changes include various application updates, command line tool improvements, and server refinements to enhance user experience. Overall, these updates have resulted in a notable performance increase, particularly in compile times, with reported improvements of around 25% on SMP systems.

- Major performance improvements were made to the Haiku operating system.

- True vectored I/O was implemented for more efficient disk operations.

- The CPU time profiler was fixed to provide accurate profiling data.

- Enhancements to application startup times were achieved by avoiding device_manager lock delays.

- Overall compile times improved significantly, reducing from ~38.5 seconds to ~29.6 seconds.