Quick Links:OS Wiki|Source Guide|Roadmap|Developer Info|Tech|Forums

---

OS Tech#

---

This page is intended to be an exhaustive table of contents for all QNX-OS -code, -technology, or -design related pages.

Notes on existing code #

• Anatomy of a System Call, and other things...
• Symmetric Multi Processing (SMP)
• The Instrumented Kernel
• FIXME: Malloc Optimizations/Debug Malloc
• FIXME: Asynchronous Message Passing
• Adaptive Partitioning
• FIXME: Benchmarks & Performance (aka QNX vs World)
• Virtual memory manager algorithms
• Virtual Memory Manager Data Structures
• Master Instrumentation Event Table
• Kernel Introspection A proposal for a high-bandwidth and regular way of getting lots of statistics out of the kernel.
• Kernel Reading Notes A place for people to record their observations on the kernel code.
• Send/Receive/Reply
• SuperLock - An amusing tale on the levels of memory locking

Performance measurements and benchmarks:#

• compiler
• kernel performance

Brainstorming: New ideas or problems #

• Kernel Debugability
• The mmaped-file lockup problem

Articles#

Articles located in the documents section

• About Pulses and Pulse Events
• Design Decoupling in a Message-Passing Environment
• Handling Mount Requests in Your Resource Manager
• Pathname Resolution with a Bit on Union Mountpoints
• Pay the Piper About efficient pipe mechanisms.
• Protecting Your Data in a Multi-Threaded App
• QNX Neutrino Resource Managers: Using MsgSend() and MsgReply()
• QNX Priorities - You Aren’t in UNIX Anymore
• Sharing a File Descriptor between Two Processes
• SMP: Two Processors and Beyond
• Tick-tock Part 1 - Understanding the Neutrino micro kernel's concept of time
• Tick-tock Part 2 - Understanding the Neutrino micro kernel's concept of time
• To Resource Manager or Not to Resource Manager
• What is Real Time and Why Do I Need It?
• (see also the documents/articles section for stuff we might have missed)

Videos on youtube.com#

• Instrumented Kernel
• Adaptive Partitioning Scheduler, part 1.1 part 1.2 part 2.1 part 2.2
  • those videos refer to slides numbers in this APS slide package

Webinars#

• October 17th, 2007 - Get the inside track on 27 years of microkernel innovation

Can't find it?#

Post to the OSTech forum.