|Return to ROADMAP CVS log||Up to [cvs.NetBSD.org] / src / doc|
|File: [cvs.NetBSD.org] / src / doc / Attic / ROADMAP (download)
Revision 1.24, Wed Aug 6 19:52:43 2008 UTC (12 years, 7 months ago) by perry
Per agc, note that the ROADMAP file is on its way out.
# $NetBSD: ROADMAP,v 1.24 2008/08/06 19:52:43 perry Exp $ *** THIS FILE IS OBSOLETE *** Although many of the projects in this file are still current and valid, roadmap information is now stored in the src/doc/roadmaps directory. This file is temporarily retained to allow the information in it to be transitioned. ------------------------------------------------------------ A high-level roadmap for NetBSD This file contains a general map of where we would like to take NetBSD over the next N years. It is not highly detailed or overly specific about each item. There are several different "TODO" files and "NetBSD Projects" lists in various places that contain some more detailed plans. This is the framework in which those projects and plans are expected to fit. As this is a volunteer project, there are no specific dates beside these items. These items may or may not get picked up in any order, and the roadmap may change as technologies and perceived needs change. The roadmap, of course, is constructed in the context of the Project's (broad) goals: * clean design * stable * fast * clean licensing * portable * interoperable * conformant * commercial-ready * research-ready * hobby-ready In general, we are headed for: * "State of the art" tools (current (and stable) GNU tools, addition of Solaris's dtrace or similar functionality, kernel core dumps on all platforms and post-mortem analysis tools, performance analysis tools with support for hardware assists like PMCs) * Support for all devices without encumbered code * Managed growth of the base system * Minimal GPL / LGPL code in the base system * Maximal performance without compromising portability * "State of the art" technology in the kernel and userland * No bugs, no security vulnerabilities * In combination with pkgsrc, a complete system for a variety of users, administrators, and researchers: desktops, embedded devices, servers, workstations, and portables This is, by no means, a comprehensive list, and purposefully aggressive. One of the many challenges will be to achieve excellence in each arena we tackle and not settle for being a "jack of all trades, master of none." The following, more specific, items are divided into rough categories: 1. Platform independent kernel 2. Platform independent userland 3. Platform dependent kernel 4. Platform dependent userland 5. Other If you'd like to take on a project, please record your name/email, the date that you're claiming a project (or part of a project--if a part, please specify the part), and an expected completion date. This will hopefully avoid both duplication of effort and too many or too-extended stalls. PLEASE NOTE THAT THIS IS A VOLUNTEER PROJECT, AND THAT NONE OF THESE RELEASE VERSIONS, OR NAMES, IS A GUARANTEE OF THE FUNCTIONALITY BEING COMPLETE OR EVEN STARTED. INTERESTED PARTIES SHOULD CONTACT core@NetBSD.org FOR MORE INFORMATION. 1. Platform independent kernel ============================== aa. Scheduler works Separation of context switching and thread scheduling. Responsible: yamt ETA: 5.0 (yamt-idlelwp branch) Generic scheduler API for modular implementations. Responsible: dsieger ETA: 5.0 (merged in yamt-idlelwp branch) New scheduler supporting POSIX Real-time features, CPU affinity and having a better support for MP systems. Responsible: rmind ETA: 5.0 ab. Reduction of the giant lock There are several proposals for the best way forward on this, but we really need a couple of people with time to step forward and lead us here. Responsible: ad ETA: 5.0 (vmlocking2 branch) ac. Expansion of wedge support Complete the development of wedges and retire disklabels except where needed for compatibility. Responsible: thorpej (possibly) ETA: 5.0 ad. Volume management Allow us to grow, shrink, and move partitions (and, where possible, filesystems). Responsible: TBD ETA: ? ae. High-performance, maybe log-based, journalled fs w/ snapshot support Addition of logs, journals, and snapshots to FFS is a lot, another filesystem could be cleaner and faster. Responsible: simonb ETA: 5.0 (journaling + snapshots don't work together yet though) af. Expansion of ieee1394 support Where possible, fully support DV, disk, and network devices. Responsible: TBD ETA: Preliminary firewire support is in 4.0 ag. Generic device hotplug support Support hotplug of all devices and busses that support it. This should be divided into subcategories and does cross over some into platform-dependent areas. SATA, SCSI, FC, USB, Firewire, PCI (PCI-X, and PCI-Express), etc. There is some rudimentary support present, but it is far from comprehensive. Responsible: bouyer ETA: ? ah. Suspend and resume support We should be able to fully use suspend and resume on PCs, macppc, and anyone else who supports it in hardware (sparc, hpcsh, hpcarm, etc). Responsible: jmcneill, joerg ETA: 5.0 ai. Complete support for LWPs There are still vestiges of the kernel that predate LWPification and should be updated. [ What other than ktrace? ] Responsible: darrenr, skrll, christos did ktrace-lwp ETA: 4.0 aj. PTHREAD_CONCURRENCY > 1 support A single process that uses threads should be able to reliably use more than one CPU. Responsible: ad ETA: 5.0 (1:1 pthread come with newlock2) ak. AIO support POSIX aio_*() with full support for Asynchronous I/O (AIO) in the kernel. Responsible: rmind ETA: 5.0 al. Modern parallel port support Complete support for bidirectional and "advanced" functionality from parallel ports. Responsible: jdolecek ETA: ? am. NFSv4 Bring our NFS up to current standards. Responsible: TBD ETA: ? an. Update the locking mechanisms in the kernel This requires some platform support. A good bit of work is on the now-archaic "newlock" branch, from thorpej. It requires some overhaul of cpu_switch/scheduler so that mutex_*(9) and ltsleep(9) can interlock. Responsible: ad ETA: 5.0 (newlock2) ao. Review TCP/IP developments Fix NewReno Responsible: mycroft ETA: 3.0 Add SACK support to the kernel. Responsible: kurahone ETA: 3.0 Add ECN support to the kernel. Responsible: rpaulo ETA: 5.0 Look into other "recent" and current TCP/IP research. Adapt our stack to the more modern world. Responsible: TBD ETA: ? ap. Kernel linker (ala FreeBSD's kld) Responsible: TBD ETA: ? aq. CARP/VRRP Functionality is great, but there might be some concern here over Cisco patents. Responsible: liamfoy ETA: 4.0 ar. UDF filesystem support OpenBSD has recently added this. Responsible: reinoud ETA: 4.0 as. RAIDFrame support for 3-way RAID 1 Responsible: TBD ETA: ? at. RAIDFrame support for RAID 6 Responsible: oster ETA: 5.0? au. More modern drivers We lack support for a number of more modern devices (PCI-Express, RAID cards, etc.) that are supported on other open source OSes. Responsible: TBD ETA: ? av. iSCSI initiator support We should be able to use iSCSI volumes. Responsible: agc ETA: 5.0 aw. Run-time changeable limits to SysV IPC Some of the limits for SysV IPC are hardcoded in the kernel configuration--these should be changable via sysctl. Responsible: rmind ETA: 4.0 ax. NUMA support To achieve this goal, the CPU scheduler should be modified to take into account the distances and grouping of CPUs. Also, support of memory blocks should be implemented in the VM subsystem. Responsible: TBD ETA: ? 2. Platform independent userland ================================ aa. Keep up with the X world Track X.org progress. Maintain existing XFree86. Responsible: a cast of thousands ETA: ongoing ab. Reentrant libraries Make sure that all libraries are re-entrant and usable for threaded applications. Responsible: ginsbach and others ETA: 5.0? ac. gcc updates This requires some work to rework the gcc4 builds to work with BSD make(1) or update BSD make(1) or consider the unthinkable. Responsible: mrg, matt ETA: 4.0 ad. gdb updates Responsible: skrll ETA: 5.0 ae. binutils updates Probably go along with gdb updates. Responsible: skrll ETA: 4.0 af. Better post-mortem debugging tools It would be useful to have something between ps/*stat/etc. and gdb with a core file. Something, perhaps, like SysV(?) crash(8). Responsible: TBD ETA: ? ag. Better 802.11 utilities and support To truly support mobile users, we need better support for scanning for base stations and affiliating with them. Responsible: dyoung, skrll, scw and others ETA: 4.0 ah. Internationalization Citrus, wide-char curses (SoC integration?), collation, localized printf with positional parameter support, time & currency support, etc. NetBSD has a global user and developer base and our i18n support should reflect that. (a) Support cond. printf fmt. 4.0 will have vfwprintf with positional parameter support; 5.0 will have vfprintf with positional parameter support. Responsible: christos ETA: 5.0 (b) Support LC_COLLATE (c) mklocale(1) -> localedef(1) (d) wchar_t in C++ (e) i18nize userland commands (f) in-kernel iconv Responsible: TBD ETA: ? ai. System packages In some fashion, we need to support system packages. This is at least to allow for sane binary audits and binary patches. Responsible: apb ETA: 4.0 aj. Provide support for binary packages in install We should have an integrated install that can install a desktop as functional as other free operating systems. Without sacrificing the quick and clean basic installs that we have now. An extension of sysinst might fit the bill. Or a tool that's both invoked by sysinst and available on a running system, e.g. pkgsrc-wip/pkg_select. Responsible: agc and others ETA: 4.0 ak. Native signing/privacy software This could be BPG (from SoC) or openpgp-sdk. Responsible: agc, cjs and others ETA: 4.0? al. Userland version identification What binaries are installed? Who really knows? This relates at least somewhat to (ai). Responsible: TBD ETA: ? 3. Platform dependent kernel ============================ aa. Move evb ports to evb* if they're not already there (sandpoint) The existing evb* ports are kind of catch-all ports for eval boards. Some of the existing non-evb* ports really belong in the evb* category. Responsible: TBD ETA: ? ab. m68k ports need to share more code Some progress has been made here in recent years, but there is more work to be done. Responsible: TBD ETA: ? ac. Kernel core dump support for all platforms Some platforms (PowerPC ports, ARM ports, etc.) don't have full support for kernel core dumps and post-mortem debugging through libkvm. This should be updated. Responsible: TBD ETA: ? ad. NDIS Support for binary network drivers on x86 platforms. Responsible: rittera ETA: 4.0 4. Platform dependent userland ============================== ab. m68k should be able to share sets Some progress has been made here in recent years, but there is more work to be done. Responsible: TBD ETA: ? 5. Other ======== aa. More and better regression tests The suite of tests that we have now is limited. We should expand these and provide systems (or manage a volunteer pool?) to run the tests on -current and release branches on a variety of platforms. We also need to migrate all the tests that currently live in 'regress' to 'tests' so that they can make use of ATF. ( Need to virtualize some with qemu or similar? ) Responsible: jmmv ETA: 5.0 should have most of regress converted ab. Native Java on multiple platforms Getting i386, amd64, sparc64, and PowerPC would be a good start, although PowerPC will require more work. We have the go-ahead, but we need the people to work on it. Responsible: the Java porting crew ETA: ? ac. Power control framework Related to suspend/resume support, we should have some framework for dynamically stepping processor speed, controlling fans, shutting down and/or powering subsystems to conserve power and keep the system with thermal limits. Responsible: TBD ETA: ?