optimistically make the release date tonight
[ikiwiki.git] / release34 / index.mdwn
9ad8146e 1# DragonFly Release 3.4
57baa58c 3Version 3.4.1 released 29 April 2013.
9ad8146e 4
5## Big-ticket items
59472ff9 7### Experimental packaging system: dports
aba95e00 9John Marino has created a system, DPorts, that uses the FreeBSD ports system to build ports for DragonFly, and uses [pkgng](https://github.com/pkgng/pkgng#readme) to manage the binary packages produced from those ports.
59472ff9 10
963e3422 11The default packaging system on DragonFly is pkgsrc. To use DPorts, you must remove or disable pkgsrc packages. Pkgsrc and DPorts cannot be used at the same time, or have packages mixed together. See the [DPorts Howto page](/docs/howtos/HowToDPorts/) for details on installing and using DPorts. Note: this is the first release with DPorts, and this is still experimental.
59472ff9 12
5275afbc 13The [DragonFly snapshots](http://avalon.dragonflybsd.org/snapshots/) are built using dports. (and also have XFCE for the desktop)
9ad8146e 15### Performance improvements under extreme load
56e0e599 17The process of testing [poudriere](https://fossil.etoilebsd.net/poudriere/doc/trunk/doc/index.wiki), a tool for mass-producing binary dports packages, exposed stability issues when repeatedly mounting and unmounting many tmpfs systems on large multicore (48) systems. These issues have been fixed. In addition to stability, several changes were made to improve performance in situations with heavy processor and disk usage.
aba95e00 18
d065665d 19Improvements in [poudriere performance, tmpfs performance](http://lists.dragonflybsd.org/pipermail/kernel/2013-April/031224.html), and [CPU usage](http://lists.dragonflybsd.org/pipermail/kernel/2013-April/031227.html) (graphs are linked in those message) were graphed by Francois Tigeot and posted on the kernel@dragonflybsd.org mailing list.
0703c256 21### New default compiler
c34817a6 23The two base compilers have swapped roles. GCC 4.7, introduced as an alternative compiler with Release 3.2, is now the primary compiler used to build DragonFly. GCC 4.4 remains on the system and still has an important role as the primary DPorts compiler. GCC 4.7 brings [OpenMP](http://http://openmp.org/) (parallel programming) support to DragonFly via libgomp as well as stack smashing protection via libssp, neither of which was supported by GCC 4.4. The newer compiler also offers improved C++ and Objective-C support, and introduces [Link-Time Optimization](http://en.wikipedia.org/wiki/Link-time_optimization) (LTO) support.
0703c256 24
9ad8146e 25### New USB stack
aba95e00 27[USB4BSD](http://www.selasky.org/hans_petter/usb4bsd/) is available this release, though not by default. More USB devices are compatible with DragonFly, and xhci (USB 3.0) users may be able to take full advantage of their newer hardware. Since this is a new feature, it is available in 3.4 but *not* built by default. See the [original announcement](http://lists.dragonflybsd.org/pipermail/users/2012-October/017542.html) for how to do so. This feature was available in DragonFly 3.2 but is still experimental.
9ad8146e 28
29## Availability
f83492af 31Two release options are now available for 32-bit as well as for 64-bit. 64-bit installations are recommended if you do not need the Linux emulation layer.
9ad8146e 32
33* An ISO, to be burned to a physical CD or used as an image to install a virtual machine.
34* A bootable USB disk-key image. (minimum 2G USB stick needed)
36The release ISO images should be available on most of the [[mirrors|mirrors]]. If the ISO is not available on a certain mirror, please try another one or download it from the DragonFly master site. Each image is in the "Live CD" format, meaning that it boots into a running and fully functional DragonFly system, which can be used for testing or system recovery tasks as well as installation. Check the [hardware page](http://www.dragonflybsd.org/docs/supportedhardware/) or boot a Live CD to check for compatibility.
39### MD5 sums
41MD5 sums for the compressed images:
9d806699 43* MD5 (dfly-i386-3.4.1_RELEASE.img.bz2) = 304aac2b5662f11af790c7f0873a1aa3
44* MD5 (dfly-i386-3.4.1_RELEASE.iso.bz2) = 2d5bdbff3b6bd67956519757e346ab26
45* MD5 (dfly-i386-gui-3.4.1_RELEASE.img.bz2) = 5d2b24c3ac661b0a22f588ac81f2e2ad
46* MD5 (dfly-i386-gui-3.4.1_RELEASE.iso.bz2) = 4ca4b3511cff0f46b3cf0a4130be95fa
47* MD5 (dfly-x86_64-3.4.1_REL.img.bz2) = ea1f86fc95f9cf30b9481a0bf4dff8eb
48* MD5 (dfly-x86_64-3.4.1_REL.iso.bz2) = 4e7dad45b484f00290accd14fe030171
49* MD5 (dfly-x86_64-gui-3.4.1_REL.img.bz2) = 3c8897a6f2ae2c2d2b9c000d3a85a720
50* MD5 (dfly-x86_64-gui-3.4.1_REL.iso.bz2) = ca66aa3f58d9e66075480ce10f3249e9
9ad8146e 52
53MD5 sums for the uncompressed images:
9d806699 55* MD5 (dfly-i386-3.4.1_REL.img) = a233e06f0149e454e973996da9004850
56* MD5 (dfly-i386-3.4.1_REL.iso) = 5cc59952ecfc8fc18b447df8dd2b6086
57* MD5 (dfly-i386-gui-3.4.1_REL.img) = d0338bd1a48533a1fbed346fd43cfc40
58* MD5 (dfly-i386-gui-3.4.1_REL.iso) = bb9b3a6032e56d66b10f448a8ff5ed33
59* MD5 (dfly-x86_64-3.4.1_REL.img) = d430112f7d901fdd10c2f53d345c333d
60* MD5 (dfly-x86_64-3.4.1_REL.iso) = 5b1db3c77eeb6a71cf507cd76ddff860
61* MD5 (dfly-x86_64-gui-3.4.1_REL.img) = cd0a0dd126d280b37a864918705b33a1
62* MD5 (dfly-x86_64-gui-3.4.1_REL.iso) = 3b77c0074f141ee37c1cb221ed018bfd
9ad8146e 64
65### pkgsrc packages
9d806699 67Pkgsrc packages are being built for this release, but have not yet fully uploaded. We suggest building from source for pkgsrc installation if you can't wait.
9ad8146e 68
69We supply a Makefile in `/usr` to track the pkgsrc tree and we supply a Git mirror of the NetBSD pkgsrc CVS repo at `git://git.dragonflybsd.org/pkgsrcv2.git`. We recommend that users use it, instead of pulling from NetBSD with CVS. Our Git mirror is updated several times a day. Type 'make' in /usr to see the available commands for performing these actions.
71## DragonFly 3.4 Special Installation and Upgrade Notes
9d806699 73**Disk size warning** - Installations using HAMMER should use disks over 50G in size. HAMMER history will consume disk space quickly. Either use UFS on smaller disks, or prune your file history carefully.
9ad8146e 74
75**Virtual PC users** - Virtual PC does not supply serial numbers for the virtual disks. The system may need to be manually directed in the boot loader if the disk identifier changes. (Hit ? in the boot loader for a list of available volumes.)
77**Qemu users** - If you see a large number of error messages on the console when booting, you may need to boot DragonFly with ACPI disabled. This can be done in the menu presented at initial boot. If that doesn't help, try placing hw.ioapic_enable=0 in /boot/loader.conf.
79**Installer Crypt Options** - The installer can encrypt the root volume and the swap volume. It will not work properly for other volumes despite any additional check-boxes you might see. Installer and boot-time support works but is still a bit rough around the edges. Performance will be relatively high on multi-core machines.
9d806699 81## DragonFly 3.4.0/3.4.1 Release Notes
9ad8146e 82
9d806699 83For a list of per-commit changes, see the [3.4.0rc tag commit](http://lists.dragonflybsd.org/pipermail/commits/2013-April/129831.html) and the [3.4.1 tag commit](http://lists.dragonflybsd.org/pipermail/commits/2013-April/129946.html).
aba95e00 84
9ad8146e 85> ### Kernel changes
ee7cb0c2 87* Very large number of ACPI changes
88* Very large number of Interrupt routing changes
89* Far better MSI/MSI-X support
90* Multiple TX and RX ring support with networking chipsets
91* Many network throughput and latency enhancements
92* Enhanced FP unit support
93* Fixed panics during keyboard screen switches
94* Improved performance under heavy paging loads
95* Greatly improved namecache performance and stability under heavy SMP loads
96* Greatly improved VM fault performance and stability under heavy SMP loads
97* Improved PMAP performance and stability under heavy SMP loads (64-bit)
98* Fixed SMP races with ^T on heavily threaded programs
99* Fixed symbolic DDB backtraces (64-bit)
100* Improved stability of swapoff
101* Improved swap page allocation algorithm
102* Greatly Improved TMPFS performance and stability by a lot
103* Fixed performance issues with namecache negative caching
104* Improved error handling in mount and unmount
105* Fixed BUFFER CACHE related performance issues due to fragmentation
106* Proper accounting for system time during heavy token contention
107* 'sync' system call no longer uses MNT_LAZY as this prevents a full sync
108* Reduce unnecessary KVM use on systems with large amounts of memory.
109* Improve UFS performance by making the ihash table per-mount
110* Better support for BIOS-emulated video displays
111* Fixed ptrace panic
112* 64-bit reverted to use nmalloc (dmalloc had too many memory bloat issues)
aba95e00 113* More reliable when very rapidly mounting and unmounting filesystems
114* USB4BSD libraries added: libusbhid, usbhidctl.
115* SMP support now on by default
116* SMBIOS information is now detected and available.
117* ifnet/ifaddr statistics are now saved per-CPU.
acec9460 118* virtio, virtio-blk drivers added.
f44e8278 119* eaccess support implemented
120* SO_NOSIGPIPE support implemented
9ad8146e 121
122> ### Hardware changes
aba95e00 124* AVX instructions are now supported on 64-bit processors.
125* Improved stability for iwi(4), wpi(4), and ath(4)
126* hptiop(4) supports RocketRAID 4520 and 4522
127* USB4BSD drivers added: usb, ehci, ohci, uhci, xhci, umass, usfs, uaudio, uep, uhid, ukbd, ums, uether, udav, and axe.
acec9460 128* em(4) and emx(4) are updated to Intel em-7.3.4.
129* igb(4) has I210 and I211 support, and is updated to Intel igb-2.3.7.
130* bnx(4) supports the BCM5717-C0, BCM5762, BCM5725 and BCM5727.
131* rl(4) supports the DLink DFE520TX C1
132* msk(4) and et(4) are MSI-enabled
133* bce(4) supports multiple-vector MSI-X, multiple receiving queues and multiple transmitting queues for BCM5709/BCM5716
134* bce(4), bge(4), bnx(4), em(4), emx(4) and jme(4) packet transmission performance has been improved by aggregating hardware register writing.
135* bce(4) and igb(4) now enable multiple hardware transmitting queues by default.
136* emx(4) supports 2 transmitting queues on 82571/82572, but is not enabled by default.
137* bce(4), emx(4), igb(4) and jme(4) fully support the new polling(4) (IFPOLL).
ee7cb0c2 138* AHCI bug fixes.
9ad8146e 139
aba95e00 140> ### HAMMER2
ee7cb0c2 142* NOTE: HAMMER2 is not operational yet, not even for devs.
acec9460 143* AES GCM support.
144* Cache coherency management system created based on HAMMER1.
145* Message passing system implemented.
146* Spanning code written.
aba95e00 147
9ad8146e 148
149> ### Userland changes
aba95e00 151* Vkernel disk serial numbers and interface MACs can now be set from the command line.
acec9460 152* mktemp(1) improvements from FreeBSD.
153* System make set to bmake.
154* Automatic installation of dports via /usr/Makefile added.
3305f45f 155* Fixed bug in powerd that could lead to only 1 cpu in the cpumask for userland scheduling.
f44e8278 156* libfetch synced with FreeBSD
157* libutil updated with file group utilities and hexdump
158* cp, mv synced with FreeBSD
159* getline bug fixed
62571eb1 160* Implemented automatic backup of binaries prior to installworld
9ad8146e 161
162> ### Removals
acec9460 164* None in this release
9ad8146e 165
166> ### Contributed Software
168* Shipping with pkgsrc-2013Q1.
aba95e00 169* gcc4.1 removed
9ae44a80 170* gcc4.7 promoted to primary compiler
171* gcc4.4 demoted to alternate compiler
172* flex updated to 2.5.37
aba95e00 173* bmake updated to 20121010
174* OpenSSH updated to 6.1p1
175* m4 updated
176* byacc updated to 20121003
177* OpenSSL updated to 1.0.1e
178* dialog updated to 1.2-20121230
179* libarchive updated to 3.1.2
180* zoneinfo updated to tzdata2013b
9ad8146e 181
182>### Security related
acec9460 184* No specific security-related updates in this release.