beforeand
aftercode. Try to interleave if possible (i.e.: do not run 20 times before then 20 times after), this makes it possible to spot environmental effects. Do not interleave 1:1, but 3:3, this makes it possible to spot interaction effects.
Cartoon guide to statisticsISBN: 0062731025, highly recommended, if you have forgotten or never learned about standard deviation and Student's T.
seconds after the boot, as &man.rc.8; wakes up and checks iffsck runtime
misbehaveand generate excess interrupts. To help diagnose odd test results, take a few snapshots of
tinderbox run completedin order to determine whether the build was successful.
The netperf cluster provides a multi-node, SMP-capable, network - functionality and performance test capability for the FreeBSD Project, supporting a variety of on-going - sub-projects including the netperf project, - and on-going work on - high performance threading. The cluster is available on a check out - basis for developers, who must request accounts be created by - contacting one of the netperf cluster admins. - The cluster includes both 1gbps and 10gbps test segments, with - network hardware from a number of vendors.
- - -The netperf cluster was made possible through the generous donation - of a number of organizations, including:
- -Sentex Data Communications, - who not only host the complete cluster, provide front-end build - system, several test systems, and the management infrastructure - (remote power, serial console, network switch, etc), but also appear - to be endlessly willing to help configure, reconfigure, and - troubleshoot at almost any time of day or night.
FreeBSD Systems, - who through a generous matching grant with the FreeBSD Foundation, - provide the majority of testing hardware used in the cluster, - including three dual-Xeon test systems.
The FreeBSD - Foundation, who provided a matching grant for the purposes of - purchasing testing hardware, as well as taking ownership of hardware, - offering tax receipts to donors in its role as a non-profit, and - participating in cluster planning.
IronPort Systems, who have - donated a test server.
iXsystems, who have - donated several test servers.
Google, Inc., who have - donated two test servers.
Cisco, Inc., who have - donated a 10gbps switch.
Chelsio Communications, - who have donated two 10gbps network cards.
Myricom, Inc., who have - donated two 10gbps network cards.
Intel Corporation, who - have donated two 10gbps network cards.
Meinberg, who - have donated a LANTIME M600 IEEE 1588 Grandmaster Clock.
&a.gnn;, who has donated a quad-core AMD test - system.
&a.rwatson;, who has donated a dual-CPU PIII system and a - Portmaster terminal server.
Donations to support the netperf cluster have an immediate and - substantial impact on the success of a number of on-going performance - projects, providing access to high-end hardware to a large number of - developers. If you or your company are interested in helping to - support continued development of the netperf cluster as a resource for - FreeBSD development, please contact the netperf - cluster admins.
- - -The FreeBSD netperf cluster is managed by a small team of - developer/administrators to support SMP development and performance - testing on high-end hardware. If you have any questions, including - questions about access to the cluster as a developer, or about possible - future donations of testing hardware, please feel free to contact them - via netperf-admin at FreeBSD.org.
- - -The Netperf cluster consists of several systems interconnected using a - management network, as well as individual back-to-back gigabit ethernet - links for a test network. Please refer to the Test - Cluster One Reservations page on the &os; wiki for the - current allocations.
- - -As the netperf cluster is a centrally managed and shared resource, - understanding and consistent following of its procedures is important. - In particular, following of the procedures makes it easier for - developers to have reasonable expectations about the configuration of - systems in the cluster, as well as to avoid treading on each others - toes.
- -Pointers and documentation on Netperf Cluster procedures can be found - on the Test - Cluster One Pointers page on the FreeBSD wiki.
- - Property changes on: head/en_US.ISO8859-1/htdocs/projects/netperf/cluster.xml ___________________________________________________________________ Deleted: svn:keywords ## -1 +0,0 ## -FreeBSD=%H \ No newline at end of property Deleted: svn:mime-type ## -1 +0,0 ## -text/sgml \ No newline at end of property Index: head/en_US.ISO8859-1/htdocs/projects/netperf/index.xml =================================================================== --- head/en_US.ISO8859-1/htdocs/projects/netperf/index.xml (revision 54088) +++ head/en_US.ISO8859-1/htdocs/projects/netperf/index.xml (nonexistent) @@ -1,386 +0,0 @@ - - - - -N/A"> -Done"> -Prototyped"> -Merged to HEAD; RELENG_5 candidate"> -Not done"> -Unknown"> -]> - - - -The netperf project is working to enhance the performance of the - FreeBSD network stack. This work grew out of the - SMPng Project, which moved the FreeBSD kernel from - a "Giant Lock" to more fine-grained locking and multi-threading. SMPng - offered both performance improvement and degradation for the network - stack, improving parallelism and preemption, but substantially - increasing per-packet processing costs. The netperf project is - primarily focussed on further improving parallelism in network - processing while reducing the SMP synchronization overhead. This in - turn will lead to higher processing throughput and lower processing - latency.
- - -Robert Watson
- -The two primary focuses of this work are to increase parallelism - while decreasing overhead. Several activities are being performed that - will work toward these goals:
- -The Netperf project has completed locking work for all components - of the network stack; as of FreeBSD 7.0 we have removed non-MPSAFE - protocol shims, and as of FreeBSD 8.0 we have removed non-MPSAFE - device driver shims.
Optimize locking strategies to find better balances between - locking granularity and locking overhead. In the first cut at locking - for the kernel, the goal was to adopt a medium-grained locking - approach based on data locking. This approach identifies critical - data structures, and inserts new locks and locking operations to - protect those data structures. Depending on the data model of the - code being protected, this may lead to the introduction of a - substantial number of locks offering unnecessary granularity, where - the overhead of locking overwhelms the benefits of available - parallelism and preemption. By selectively reducing granularity, it - is possible to improve performance by decreasing locking overhead. -
Amortize the cost of locking by processing queues of packets or - events. While the cost of individual synchronization operations may - be high, it is possible to amortize the cost of synchronization - operations by grouping processing of similar data (packets, events) - under the same protection. This approach focuses on identifying - places where similar locking occurs frequently in succession, and - introducing queueing or coalescing of lock operations across the - body of the work. For example, when a series of packets is inserted - into an outgoing interface queue, a basic locking approach would - lock the queue for each insert operation, unlock it, and hand off to - the interface driver to begin the send, repeating this sequence as - required. With a coalesced approach, the caller would pass off a - queue of packets in order to reduce the locking overhead, as well as - eliminate unnecessary synchronization due to the queue being - thread-local. This approach can be applied at several levels in the - stack, and is particularly applicable at lower levels of the stack - where streams of packets require almost identical processing. -
Introduce new synchronization strategies with reduced overhead - relative to traditional strategies. Most traditional strategies - employ a combination of interrupt disabling and atomic operations to - achieve mutual exclusion and non-preemption guarantees. However, - these operations are expensive on modern CPUs, leading to the desire - for cheaper primitives with weaker semantics. For example, the - application of uni-processor primitives where synchronization is - required only on a single processor, and optimizations to critical - section primitives to avoid the need for interrupt disabling. -
Modify synchronization strategies to take advantage of - additional, non-locking, synchronization primitives. This approach - might take the form of making increased use of per-CPU or per-thread - data structures, which require little or no synchronization. For - example, through the use of critical sections, it is possible to - synchronize access to per-CPU caches and queues. Through the use of - per-thread queues, data can be handed off between stack layers - without the use of synchronization.
Increase the opportunities for parallelism through increased - threading in the network stack. The current network stack model - offers the opportunity for substantial parallelism, with outbound - processing typically taking place in the context of the sending - thread in kernel, crypto occurring in crypto worker threads, and - receive processing taking place in a combination of the receiving - ithread and dispatched netisr thread. While handoffs between - threads introduces overhead (synchronization, context switching), - there is the opportunity to increase parallelism in some workloads - through introducing additional worker threads. Identifying work - that may be relocated to new threads must be done carefully to - balance overhead, and latency concerns, but can pay off by - increasing effective CPU utilization and hence throughput. For - example, introducing additional netisr threads capable of running on - more than one CPU at a time can increase input parallelism, subject - to maintaining desirable packet ordering (present in FreeBSD - 8.0).
| Task | -Responsible | -Last updated | -Status | -Notes | -
|---|---|---|---|---|
| Prefer file descriptor reference counts to socket reference - counts for system calls. | -&a.rwatson; | -20041124 | -&status.done; | -Sockets and file descriptors both have reference counts in order - to prevent these objects from being free'd while in use. However, - if a file descriptor is used to reach the socket, the reference - counts are somewhat interchangeable, as either will prevent - undesired garbage collection. For socket system calls, overhead - can be reduced by relying on the file descriptor reference count, - thus avoiding the synchronized operations necessary to modify the - socket reference count, an approach also taken in the VFS code. - This change has been made for most socket system calls, and has - been committed to HEAD (6.x). It has also been merged to RELENG_5 - for inclusion in 5.4. | -
| Mbuf queue library | -&a.rwatson; | -20041124 | -&status.prototyped; | -In order to facilitate passing off queues of packets between - network stack components, create an mbuf queue primitive, struct - mbufqueue. The initial implementation is complete, and the - primitive is now being applied in several sample cases to determine - whether it offers the desired semantics and benefits. The - implementation can be found in the rwatson_dispatch Perforce - branch. Additional work must also be done to explore the - performance impact of "queues" vs arrays of mbuf pointers, which - are likely to behave better from a caching perspective. | -
| Employ queued dispatch in interface send API | -&a.rwatson; | -20041106 | -&status.prototyped; | -An experimental if_start_mbufqueue() interface to struct ifnet - has been added, which passes an mbuf queue to the device driver for - processing, avoiding redundant synchronization against the - interface queue, even in the event that additional queueing is - required. This has not yet been benchmarked. A subset change to - dispatch a single mbuf to a driver has also been prototyped, and - benchmarked at a several percentage point improvement in packet send - rates from user space. | -
| Employ queued dispatch in the interface receive API | -&a.rwatson; | -20041106 | -&status.new; | -Similar to if_start_mbufqueue, allow input of a queue of mbufs - from the device driver into the lowest protocol layers, such as - ether_input_mbufqueue. | -
| Employ queued dispatch across netisr dispatch API | -&a.rwatson; | -20090601 | -&status.done; | -Pull all of the mbufs in the netisr queue into a thread-local - mbuf queue to avoid repeated lock operations to access the queue. - This work was completed as part of the netisr2 project, and will - ship with 8.0-RELEASE. | -
| Modify UMA allocator to use critical sections not mutexes for - per-CPU caches. | -&a.rwatson; | -20050429 | -&status.done; | -The mutexes protecting per-CPU caches require atomic operations - on SMP systems; as they are per-CPU objects, the cost of - synchronizing access to the caches can be reduced by combining - CPU pinning and/or critical sections instead. This change has now - been committed and will appear in 6.0-RELEASE; it results in a - several percentage performance in UDP send from user space, and - there have been reports of 20%+ improvements in allocation - intensive code within the kernel. In micro-benchmarks, the cost - of allocation on SMP is dramatically reduced. | -
| Modify malloc(9) allocator to use per-CPU statistics with - critical sections to protect malloc_type statistics rather than - global statistics with a mutex. | -&a.rwatson; | -20050529 | -&status.done; | -Previously, malloc(9) used a single statistics structure - protected by a mutex to hold global malloc statistics for each - malloc type. This change moves to per-CPU statistics structures, - which are coalesced when reporting memory allocation statistics to - the user, and protects them using critical sections. This reduces - cache line contention for common allocation types by avoiding - shared lines, and also reduces synchronization costs by using - critical sections to synchronize access instead of a mutex. While - malloc(9) is less frequently used in the network stack than uma(9), - it is used for socket address data, so is on performance critical - paths for datagram operations. This has been committed and appeared - 6.0-RELEASE. | -
| Optimize critical section performance | -&a.jhb; | -20050404 | -&status.done; | -Critical sections prevent preemption of a thread on a CPU, as - well as preventing migration of that thread to another CPU, and - maybe used for synchronizing access to per-CPU data structures, as - well as preventing recursion in interrupt processing. Currently, - critical sections disable interrupts on the CPU. In previous - versions of FreeBSD (4.x and before), optimizations were present - that allowed for software interrupt disabling, which lowers the - cost of critical sections in the common case by avoiding expensive - microcode operations on the CPU. By restoring this model, or a - variation on it, critical sections can be made substantially - cheaper to enter. In particular, this change lowers the cost - of critical sections on UP such that it is approximately the same - cost as a mutex, meaning that optimizations on SMP to use critical - sections instead of mutexes will not harm UP performance. This - change has now been committed, and appeared in 6.0-RELEASE. | -
| Normalize socket and protocol control block reference model | -&a.rwatson; | -20060401 | -&status.done; | -The socket/protocol boundary is characterized by a set of data - structures and API interfaces, where the socket code acts as both - a consumer and a service library for protocols. This task is to - normalize the reference model by which protocol state is attached - to and detached from socket state in order to strengthen - invariants, allowing the removal of countless unused code paths - (especially error handling), the removal of unnecessary locking - in TCP, and a general improve the structure of the code. This - serves both the immediate purpose of improving the quality and - performance of this code, as well as being necessary for future - optimization work. These changes have been prototyped in - Perforce, and now merged to 7-CURRENT. They will be merged into - RELENG_6 once they have been thoroughly tested. | -
| Add true inpcb reference count support | -&a.mohans;, &a.rwatson;, &a.peter; | -20081208 | -&status.done; | -Historically, the in-bound TCP and UDP socket paths relied on - global pcbinfo info locks to prevent PCBs being delivered to from - being garbage collected by another thread while in use. This set - of changes introduces a true reference model for PCBs so that the - global lock can be released during in-bound process, and appear - in 8.0-RELEASE. | -
| Fine-grained locking for UNIX domain sockets | -&a.rwatson; | -20070226 | -&status.done; | -UNIX domain sockets in FreeBSD 5.x and 6.x use a single global - subsystem lock. This is sufficient to allow it to run without - Giant, but results in contention with large numbers of processors - simultaneously operating on UNIX domain sockets. This task - introduced per-protocol control block locks in order to reduce - contention on a larger subsystem lock, and the results appeared in - 7.0-RELEASE. | -
| Multiple netisr threads | -&a.rwatson; | -20090601 | -&status.done; | -Historically, the BSD network stack has used a single network - software interrupt context, for deferred network processing. With - the introduction of multi-processing, this became a single - software interrupt thread. In FreeBSD 8.0, multiple netisr - threads are now supported, up to the number of CPUs present in the - system. | -
Through the generous donations and investment of Sentex Data - Communications, FreeBSD Systems, IronPort Systems, and the FreeBSD - Foundation, a network performance testbed has been created in Ontario, - Canada for use by FreeBSD developers working in the area of network - performance. A similar cluster, made possible through the generous - donation of Verio, is being prepared for use in more general SMP - performance work in Virginia, US. Each cluster consists of several SMP - systems inter-connected with giga-bit ethernet such that relatively - arbitrary topologies can be constructed in order to test host-host, IP - forwarding, and bridging performance scenarios. Systems are network - booted, have serial console, and remote power, in order to maximize - availability and minimize configuration overhead. These systems are - available on a check-out basis for experimentation and performance - measurement to FreeBSD developers working on the Netperf project, and - in related areas.
- -More detailed information on the netperf - cluster can be found by following this link.
- - -The following paper(s) have been produced by or are related to the - Netperf Project:
- - - - -Some useful links relating to the netperf work:
- -SMPng Project -- Project to introduce - finer grained locking in the FreeBSD kernel.
Robert - Watson's netperf web page -- Web page that includes a change log - and performance measurement/debugging information.
busdma
-The busdma interfaces permit hardware device drivers to operate - on a variety of platforms avoiding the encoding of platform-specific - access methods into drivers. This lowers the maintenance costs - for drivers across platforms, and improves the chances that a driver - will "just work" on a new platform. Modifying a driver to make use - of busdma is relatively straight forward, but does require - familiarity with both the device driver and busdma primitives. - For busdma to be used in FreeBSD, two sets of changes are generally - required: adaptation of the busdma implementation to run on all - platforms, and adaptation of drivers to use the framework. As such, - status information on this project is broken down into platform - support, and driver support (sorted by category). Completing - this work requires a thorough audit of the system device drivers, - then prioritized conversion of drivers. Drivers are also - expected to use bus_space functions, and this column is - sometimes used to denote a driver in need of conversion to - bus_space as well.
- -INTR_MPSAFE
-Hardware drivers register their interrupt handler with the
- bus_setup_intr() function. Setting the flag
- INTR_MPSAFE tells the system interrupt code
- to call the interrupt routine without holding the Giant
- mutex. This can give a significant performance gain on SMP
- systems.
Drivers can set this flag even if they are not fully locked - down as long as their interrupt routine is careful about not - touching other data structures in the driver. An easy way to - do this is to check and clear the hardware interrupt status - registers and then schedule the interrupt processing for a - taskqueue or kernel thread.
- -SMPng locked
-Drivers should employ mutexes and sx locks to protect their - data structures and hardware registers from competing threads. - Mutex operations are somewhat expensive, so a good strategy is - combine as many atomic operations into a single mutex acquisition - as possible.
- -p!=a safety
-Intel PAE support requires that pointers and physical address - representations be of differing sizes. This means that drivers - must be written to use vm_paddr_t or bus_addr_t rather than - assuming that physical addresses can be represented using a - void *. In addition, format strings and casts must be - carefully handled.
- -The task list below is not intended to be complete, but does - represent a set of relevant and/or important components of the - overall work. The "Responsible" field identifies a developer who - has expressed willingness to be responsible for completing the - identified task; this doesn't preclude others working on it, - but suggests that coordination with the responsible party might - be appropriate so as to avoid unnecessary duplication of work, - and to maximize forward progress. If beginning work on a new - area of substantial size, or one that appears unclaimed, it may - be worth dropping an e-mail to &a.mux; to see if any progress - has been made.
- -The definition of the date field varies depending on the status - of a task. For completed tasks, it refers to the date completed - or reported completed. For in-progress tasks, it refers to the - date of the last update of the entry. For stalled tasks, it - refers to the date that the task was declared stalled. For - new tasks, it refers to the date the task was added to the list.
- -Tasks are sorted first by status, then by date.
- - -A series of manual pages related to this project can be found - here:
- -| Task | -Responsible | -Last updated | -Status | -Details | -
|---|---|---|---|---|
| amd64 | -&a.peter; | -July 1, 2003 | -&status.done; | -Fully supported. | -
| arm | -&a.cognet; | -December 23, 2005 | -&status.done; | -Fully supported. | -
| ia64 | -&a.marcel; | -December 10, 2002 | -&status.done; | -There may be problems for systems with large amounts - of memory. | -
| i386 | -&a.sam; | -December 9, 2002 | -&status.done; | -Fully supported. | -
| powerpc | -&a.grehan; | -January 15, 2003 | -&status.done; | -Fully supported. | -
| sparc64 | -&a.tmm; | -January 6, 2003 | -&status.done; | -Fully supported. | -
| Driver | -Responsible | -Last updated | -busdma | -INTR_MPSAFE | -SMPng locked | -a!=p | -Notes | -
|---|---|---|---|---|---|---|---|
| if_an | -- | December 23, 2005 | -&status.unknown; | -&status.unknown; | -&status.unknown; | -&status.unknown; | -- |
| if_ar | -- | - | &status.new; | -&status.new; | -&status.new; | -&status.new; | -kvtop() | -
| if_arl | -- | August 27, 2006 | -&status.unknown; | -&status.unknown; | -&status.unknown; | -&status.unknown; | -- |
| if_ath | -- | August 27, 2006 | -&status.unknown; | -&status.unknown; | -&status.unknown; | -&status.unknown; | -- |
| if_aue | -- | September 3, 2006 | -&status.na; | -&status.new; | -&status.unknown; | -&status.unknown; | -- |
| if_awi | -- | August 27, 2006 | -&status.unknown; | -&status.unknown; | -&status.unknown; | -&status.unknown; | -- |
| if_axe | -- | September 3, 2006 | -&status.na; | -&status.new; | -&status.unknown; | -&status.unknown; | -- |
| if_bce | -- | August 25, 2006 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| if_bfe | -&a.silby; | -August 23, 2006 | -&status.done; | -&status.wip; | -&status.wip; | -&status.wip; | -- |
| if_bge | -&a.wpaul; | -April 13, 2004 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| if_cdce | -- | September 3, 2006 | -&status.na; | -&status.new; | -&status.unknown; | -&status.unknown; | -- |
| if_cnw | -- | August 27, 2006 | -&status.unknown; | -&status.unknown; | -&status.unknown; | -&status.unknown; | -- |
| if_cp | -&a.rik; | -October 31, 2005 | -&status.done; | -&status.done; | -&status.done; | -&status.new; | -- |
| if_cs | -&a.imp; | -December 23, 2005 | -&status.new; | -&status.new; | -&status.new; | -&status.unknown; | -Needs bus_space conversion | -
| if_ct | -&a.rik; | -October 31, 2005 | -&status.done; | -&status.done; | -&status.done; | -&status.new; | -- |
| if_cue | -- | September 3, 2006 | -&status.na; | -&status.new; | -&status.unknown; | -&status.unknown; | -- |
| if_cx | -&a.rik; | -June 24, 2004 | -&status.done; | -&status.wip; | -&status.wip; | -&status.new; | -- |
| if_dc | -&a.mux; | -August 19, 2005 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| if_de | -&a.mux; | -August 17, 2005 | -&status.done; | -&status.done; | -&status.done; | -&status.new; | -- |
| if_ed | -&a.imp; | -December 23, 2005 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| if_em | -&a.pdeuskar; | -April 13, 2004 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| if_en | -&a.harti; | -November 2, 2005 | -&status.done; | -&status.new; | -&status.new; | -&status.done; | -Locking present; not yet marked INTR_MPSAFE? | -
| if_ep | -&a.mdodd;,&a.imp; | -April 13, 2004 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| if_ex | -&a.imp; | -Dcember 23, 2005 | -&status.done; | -&status.new; | -&status.new; | -&status.done; | -- |
| if_fatm | -&a.harti; | -November 2, 2005 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| if_fwe | -- | - | &status.new; | -&status.new; | -&status.new; | -&status.new; | -- |
| if_fxp | -&a.mux; | -April 13, 2004 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| if_gem | -&a.tmm; | -July 31, 2005 | -&status.done; | -&status.done; | -&status.done; | -&status.new; | -- |
| if_hatm | -&a.harti; | -November 2, 2005 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| if_hme | -&a.tmm; | -January 30, 2005 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| if_idt | -- | - | &status.new; | -&status.new; | -&status.new; | -&status.new; | -vtophys() | -
| if_ipw | -- | August 27, 2006 | -&status.unknown; | -&status.unknown; | -&status.unknown; | -&status.unknown; | -- |
| if_iwi | -- | August 27, 2006 | -&status.unknown; | -&status.unknown; | -&status.unknown; | -&status.unknown; | -- |
| if_ixgb | -- | August 21, 2006 | -&status.untested; | -&status.new; | -&status.new; | -&status.new; | -- |
| if_kue | -- | September 3, 2006 | -&status.na; | -&status.new; | -&status.unknown; | -&status.unknown; | -- |
| if_le | -&a.marius; | -January 31, 2006 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| if_lge | -- | November 23, 2005 | -&status.new; | -&status.done; | -&status.done; | -&status.new; | -vtophys() | -
| if_lmc | -- | February 11, 2006 | -&status.done; | -&status.done; | -&status.done; | -&status.unknown; | -Untested on PAE | -
| if_mn | -- | - | &status.new; | -&status.new; | -&status.new; | -&status.new; | -vtophys(). Please contact &a.phk; for info/hardware. | -
| if_mxge | -&a.gallatin; | -August 23, 2006 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| if_my | -- | August 17, 2005 | -&status.new; | -&status.done; | -&status.done; | -&status.new; | -vtophys() | -
| if_nfe | -- | August 23, 2006 | -&status.done; | -&status.done; | -&status.done; | -&status.new; | -- |
| if_nge | -- | August 17, 2005 | -&status.new; | -&status.done; | -&status.done; | -&status.new; | -vtophys() | -
| if_nve | -- | November 23, 2005 | -&status.new; | -&status.done; | -&status.done; | -&status.new; | -vtophys() | -
| if_pcn | -&a.obrien; | -August 19, 2005 | -&status.new; | -&status.done; | -&status.done; | -&status.new; | -vtophys() | -
| if_pdq | -- | - | &status.new; | -&status.new; | -&status.new; | -&status.new; | -Mostly busdma, except for vtophys(). | -
| if_ral | -- | August 27, 2006 | -&status.unknown; | -&status.unknown; | -&status.unknown; | -&status.unknown; | -- |
| if_ray | -- | August 27, 2006 | -&status.unknown; | -&status.unknown; | -&status.unknown; | -&status.unknown; | -- |
| if_re | -- | May 30, 2005 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| if_rl | -&a.wpaul; | -April 13, 2004 | -&status.done; | -&status.done; | -&status.done; | -&status.new; | -- |
| if_rue | -- | September 3, 2006 | -&status.na; | -&status.new; | -&status.unknown; | -&status.unknown; | -- |
| if_sf | -- | August 19, 2005 | -&status.new; | -&status.done; | -&status.done; | -&status.new; | -vtophys() | -
| if_sis | -&a.wpaul; | -April 13, 2004 | -&status.done; | -&status.done; | -&status.done; | -&status.new; | -- |
| if_sk | -- | August 24, 2006 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| if_sn | -&a.imp; | -December 23, 2005 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| if_snc | -- | December 23, 2005 | -&status.unknown; | -&status.unknown; | -&status.unknown; | -&status.unknown; | -pc98 only device (although it could work with many - cardbus bridges) | -
| if_sr | -- | - | &status.new; | -&status.new; | -&status.new; | -&status.new; | -vtophys() | -
| if_ste | -- | August 31, 2005 | -&status.new; | -&status.done; | -&status.done; | -&status.new; | -vtophys() | -
| if_stge | -&a.yongari; | -August 23, 2006 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| if_ti | -- | December 13, 2005 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| if_tl | -- | September 15, 2005 | -&status.new; | -&status.done; | -&status.done; | -&status.new; | -- |
| if_tx | -&a.mux; | -April 19, 2003 | -&status.done; | -&status.new; | -&status.new; | -&status.untested; | -- |
| if_txp | -- | September 22, 2005 | -&status.wip; | -&status.done; | -&status.done; | -&status.new; | -- |
| if_udav | -- | September 3, 2006 | -&status.na; | -&status.new; | -&status.unknown; | -&status.unknown; | -- |
| if_ural | -- | September 3, 2006 | -&status.na; | -&status.new; | -&status.unknown; | -&status.unknown; | -- |
| if_vge | -- | August 23, 2006 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| if_vr | -- | April 23, 2004 | -&status.new; | -&status.done; | -&status.done; | -&status.new; | -- |
| if_vx | -- | September 22, 2005 | -&status.na; | -&status.done; | -&status.done; | -&status.new; | -Uses PIO to copy mbufs to and from hardware. | -
| if_wb | -- | September 22, 2005 | -&status.new; | -&status.done; | -&status.done; | -&status.new; | -- |
| if_wi | -&a.sam;, &a.imp; | -November 4, 2003 | -&status.unknown; | -&status.done; | -&status.unknown; | -&status.unknown; | -This driver needs lots of help | -
| if_xe | -&a.imp; | -December 23, 2005 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| if_xl | -&a.mux; | -April 13, 2004 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| Driver | -Responsible | -Last updated | -busdma | -INTR_MPSAFE | -SMPng locked | -a!=p | -Notes | -
|---|---|---|---|---|---|---|---|
| aac | -- | January 31, 2005 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -Not endian clean. | -
| adv | -- | December 9, 2002 | -&status.done; | -&status.new; | -&status.new; | -&status.new; | -- |
| aha | -- | April 13, 2004 | -&status.done; | -&status.wip; | -&status.wip; | -&status.new; | -Uses BUSDMA, but may pun bus address with host address. | -
| ahb | -- | December 9, 2002 | -&status.done; | -&status.new; | -&status.new; | -&status.new; | -- |
| ahc | -&a.gibbs; | -January 31, 2005 | -&status.done; | -&status.new; | -&status.new; | -&status.done; | -- |
| ahd | -&a.gibbs; | -January 31, 2005 | -&status.done; | -&status.new; | -&status.new; | -&status.done; | -- |
| aic | -- | December 23, 2005 | -&status.unknown; | -&status.unknown; | -&status.unknown; | -&status.unknown; | -Neeeds evaluation | -
| amd | -- | December 14, 2002 | -&status.done; | -&status.new; | -&status.new; | -&status.new; | -- |
| amr | -- | January 30, 2005 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| asr | -- | January 4, 2003 | -&status.new; | -&status.new; | -&status.new; | -&status.new; | -vtophys(). Requires major work. A new I2O framework would be desirable. | -
| ata | -&a.sos; | -December 9, 2002 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| buslogic | -- | - | &status.new; | -&status.new; | -&status.new; | -&status.new; | -vtophys() | -
| ciss | -- | December 9, 2002 | -&status.done; | -&status.new; | -&status.new; | -&status.new; | -- |
| ct | -- | - | &status.new; | -&status.new; | -&status.new; | -&status.new; | -- |
| dpt | -- | - | &status.new; | -&status.new; | -&status.new; | -&status.new; | -vtophys() | -
| fdc | -- | December 23, 2005 | -&status.unknown; | -&status.unknown; | -&status.unknown; | -&status.unknown; | -Needs evaluation | -
| ida | -- | December 9, 2002 | -&status.done; | -&status.new; | -&status.new; | -&status.new; | -- |
| iir | -- | March 1, 2006 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -64-bit DMA without bouncing is possible, but needs work. | -
| isp | -- | February 8, 2003 | -&status.done; | -&status.done; | -&status.new; | -&status.new; | -- |
| ips | -- | January 30, 2005 | -&status.done; | -&status.done; | -&status.done; | -&status.done; | -- |
| mlx | -- | February 8, 2003 | -&status.done; | -&status.wip; | -&status.wip; | -&status.new; | -- |
| mly | -- | February 8, 2003 | -&status.done; | -&status.wip; | -&status.wip; | -&status.new; | -- |
| mpt | -- | December 9, 2002 | -&status.done; | -&status.done; | -&status.new; | -&status.new; | -- |
| ncr | -- | - | &status.new; | -&status.new; | -&status.new; | -&status.new; | -vtophys(). Please contact &a.phk; for a possible source - of hardware. | -
| ncv | -- | - | &status.unknown; | -&status.unknown; | -&status.unknown; | -&status.unknown; | -Needs evaluation | -
| nsp | -- | - | &status.unknown; | -&status.unknown; | -&status.unknown; | -&status.unknown; | -Needs evaluation | -
| pst | -- | April 11, 2003 | -&status.new; | -&status.done; | -&status.new; | -&status.new; | -vtophys() | -
| stg | -- | December 9, 2002 | -&status.done; | -&status.new; | -&status.new; | -&status.new; | -At least, it looks like it may well be. | -
| sym | -- | December 19, 2002 | -&status.done; | -&status.new; | -&status.new; | -&status.new; | -- |
| trm | -&a.cognet; | -December 9, 2002 | -&status.done; | -&status.new; | -&status.new; | -&status.new; | -- |
| twe | -- | December 9, 2002 | -&status.done; | -&status.new; | -&status.new; | -&status.new; | -- |
| wds | -- | February 2, 2005 | -&status.done; | -&status.new; | -&status.new; | -&status.new; | -- |
| Driver | -Responsible | -Last updated | -busdma | -INTR_MPSAFE | -SMPng locked | -a!=p | -Notes | -
|---|---|---|---|---|---|---|---|
| agp | -- | October 31, 2005 | -&status.new; | -&status.new; | -&status.new; | -&status.new; | -vtophys() | -
| bktr | -&a.cognet; | -January 15, 2003 | -&status.wip; | -&status.new; | -&status.new; | -&status.new; | -vtophys() | -
| digi | -- | - | &status.new; | -&status.new; | -&status.new; | -&status.new; | -vtophys() | -
| drm | -&a.anholt; | -October 27, 2003 | -&status.wip; | -&status.done; | -&status.done; | -&status.wip; | -vtophys(). The locking could use some review. | -
| fb | -- | - | &status.new; | -&status.new; | -&status.new; | -&status.new; | -vtophys() | -
| firewire | -&a.simokawa; | -April 17, 2003 | -&status.done; | -&status.new; | -&status.new; | -&status.done; | -vtophys() | -
| hfa | -- | - | &status.new; | -&status.new; | -&status.new; | -&status.new; | -vtophys() | -
| hifn | -&a.sam; | -April 13, 2004 | -&status.done; | -&status.done; | -&status.done; | -&status.new; | -- |
| musycc | -- | - | &status.new; | -&status.new; | -&status.new; | -&status.new; | -vtophys(). Please contact &a.phk; for info/hardware. | -
| pcm | -&a.cognet; | -February 20, 2003 | -&status.done; | -&status.done; | -&status.new; | -&status.new; | -- |
| ubsec | -&a.sam; | -April 13, 2004 | -&status.done; | -&status.done; | -&status.done; | -&status.new; | -vtophys() is used in debugging printf. | -
| usb | -&a.jmg; | -July 24, 2003 | -&status.done; | -&status.new; | -&status.new; | -&status.untested; | -a!=p should be clean, but requires further testing. | -
| Task | -Responsible | -Last updated | -Status | -Notes | -
|---|---|---|---|---|
| Manual pages for the busdma API | -&a.hmp; | -January 15, 2003 | -&status.done; | -- |
The ideas page has moved to the FreeBSD wiki.
- - - Property changes on: head/en_US.ISO8859-1/htdocs/projects/ideas/ideas.xml ___________________________________________________________________ Deleted: svn:keywords ## -1 +0,0 ## -FreeBSD=%H \ No newline at end of property Index: head/en_US.ISO8859-1/htdocs/projects/ideas/style.css =================================================================== --- head/en_US.ISO8859-1/htdocs/projects/ideas/style.css (revision 54088) +++ head/en_US.ISO8859-1/htdocs/projects/ideas/style.css (nonexistent) @@ -1,38 +0,0 @@ -BODY { -} - -BODY TD { - font-size: 13px; -} - -BODY SMALL { - width: 615px; - font-size: 11px; -} - -.heading { - font-size: 15px; - background-color: #cbd2ec; -} - -.section { - font-size: 15px; - font-weight: bold; - background-color: #e7e9f7; -} - -.notes { - font-size: 13px; - font-weight: normal; -} - -.main { - width: 615px; - height: auto; - text-align: justify; -} - -.list { - width: 550px; - height: auto; -} Property changes on: head/en_US.ISO8859-1/htdocs/projects/ideas/style.css ___________________________________________________________________ Deleted: svn:keywords ## -1 +0,0 ## -FreeBSD=%H \ No newline at end of property Index: head/en_US.ISO8859-1/htdocs/projects/ideas/Makefile =================================================================== --- head/en_US.ISO8859-1/htdocs/projects/ideas/Makefile (revision 54088) +++ head/en_US.ISO8859-1/htdocs/projects/ideas/Makefile (nonexistent) @@ -1,18 +0,0 @@ -# FreeBSD list of projects and ideas for volunteers -# -# $FreeBSD$ - -MAINTAINER= joel - -.if exists(../Makefile.conf) -.include "../Makefile.conf" -.endif -.if exists(../Makefile.inc) -.include "../Makefile.inc" -.endif - -DATA= style.css - -DOCS= ideas.xml - -.include "${DOC_PREFIX}/share/mk/web.site.mk" Property changes on: head/en_US.ISO8859-1/htdocs/projects/ideas/Makefile ___________________________________________________________________ Deleted: svn:keywords ## -1 +0,0 ## -FreeBSD=%H \ No newline at end of property Index: head/en_US.ISO8859-1/htdocs/projects/Makefile =================================================================== --- head/en_US.ISO8859-1/htdocs/projects/Makefile (revision 54088) +++ head/en_US.ISO8859-1/htdocs/projects/Makefile (revision 54089) @@ -1,25 +1,25 @@ # $FreeBSD$ .if exists(../Makefile.conf) .include "../Makefile.conf" .endif .if exists(../Makefile.inc) .include "../Makefile.inc" .endif DOCS= projects.xml DOCS+= newbies.xml DOCS+= summerofcode.xml DOCS+= summerofcode-2005.xml DOCS+= summerofcode-2006.xml DOCS+= summerofcode-2007.xml DOCS+= summerofcode-2008.xml DATA= 2018-freebsd-gsoc-thumbnail.png DATA+= 2018-freebsd-gsoc.pdf INDEXLINK= projects.html -SUBDIR= busdma ideas mips netperf +SUBDIR= mips .include "${DOC_PREFIX}/share/mk/web.site.mk" Index: head/en_US.ISO8859-1/htdocs/projects/projects.xml =================================================================== --- head/en_US.ISO8859-1/htdocs/projects/projects.xml (revision 54088) +++ head/en_US.ISO8859-1/htdocs/projects/projects.xml (revision 54089) @@ -1,238 +1,230 @@ ]>In addition to the mainstream development path of FreeBSD, a number of developer groups are working on the cutting edge to expand FreeBSD's range of applications in new directions. Follow the links below to learn more about these exciting projects.
If you feel that a project is missing, please send the URL and a short description (3-10 lines) to www@FreeBSD.org.In addition, some of these projects regularly submit status reports, which can be viewed on the status reports page.