| | 1 | # DragonFly Release 3.2 |
| | 2 | |
| | 3 | ## 22 October 2012 (3.2.1 release) |
| | 4 | |
| | 5 | |
| | 6 | The DragonFly 3.0 release is here! |
| | 7 | |
| | 8 | ## Big-ticket items |
| | 9 | |
| | 10 | ### foo |
| | 11 | |
| | 12 | * MAXPHYS used more consistently, all block IO devices can now cluster requests up to 128KB if they support it |
| | 13 | |
| | 14 | * Filesystem-independent quota subsystem. vquota(8) |
| | 15 | |
| | 16 | * Watchdog drivers for Intel and AMD chipsets. ichwd(4) and amdsbwd(4) |
| | 17 | |
| | 18 | * ixgbe(4): driver for Intel 10Gb/s ethernet adapters |
| | 19 | |
| | 20 | bar bar bar |
| | 21 | |
| | 22 | |
| | 23 | ## Availability |
| | 24 | |
| | 25 | Four 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. |
| | 26 | |
| | 27 | * An ISO, to be burned to a physical CD or used as an image to install a virtual machine. |
| | 28 | * A bootable USB disk-key image. (minimum 2G USB stick needed) |
| | 29 | * A GUI bootable ISO image with a full X environment. DVD disc required. |
| | 30 | * A GUI bootable USB disk-key image with a full X environment. (minimum 4G USB stick needed) |
| | 31 | * The GUI images also include a snapshot of our git repos in /usr/src/.git and /usr/pkgsrc/.git which can be incrementally updated after the installation. |
| | 32 | |
| | 33 | The 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. |
| | 34 | |
| | 35 | The GUI bootable USB image also contains the DragonFly git repo in /usr/src and the pkgsrc git repo in /usr/pkgsrc. The code can be trivially checked out using these repos and can be incrementally updated from master sites, post-install. |
| | 36 | |
| | 37 | ### MD5 sums |
| | 38 | |
| | 39 | MD5 sums for the compressed images: |
| | 40 | |
| | 41 | * MD5 (dfly-i386-3.0.1_REL.img.bz2) = 8f812dbcb9c0ca28a61f5a0ae1e35a9e |
| | 42 | foo |
| | 43 | foo |
| | 44 | |
| | 45 | MD5 sums for the uncompressed images: |
| | 46 | |
| | 47 | * MD5 (dfly-i386-3.0.1_REL.img) = a7cc87b26c04a179476f9c3f20f8ce9d |
| | 48 | foo |
| | 49 | foo |
| | 50 | |
| | 51 | |
| | 52 | ### pkgsrc packages |
| | 53 | |
| | 54 | We offer roughly 10,000 pre-built [pkgsrc](http://www.pkgsrc.org) packages for this release. The [pkg_radd(1)](http://leaf.dragonflybsd.org/cgi/web-man?command=pkg_radd§ion=ANY) utility may be used to download pre-built binary packages. The path can be overridden by setting BINPKG_BASE in `/etc/pkg_radd.conf`. |
| | 55 | |
| | 56 | To get a list of all packages, let [pkg_search(1)](http://leaf.dragonflybsd.org/cgi/web-man?command=pkg_search§ion=ANY) download the summary file for that release: |
| | 57 | |
| | 58 | # pkg_search -d |
| | 59 | |
| | 60 | We 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. |
| | 61 | |
| | 62 | ## DragonFly 3.0 Special Installation and Upgrade Notes |
| | 63 | |
| | 64 | **Disk size warning** - Unless your hard disk is 50G or larger, we recommend doing a UFS install and not the default HAMMER install. We also recommend installing from the CD ISO, not the GUI .img, for smaller drives. A more serious installation should use HAMMER with at least 50G of disk space and can install from the GUI .img. HAMMER on smaller disk drives is possible but requires careful pruning to keep from filling the disk with file history. |
| | 65 | |
| | 66 | **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.) |
| | 67 | |
| | 68 | **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. |
| | 69 | |
| | 70 | **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. |
| | 71 | |
| | 72 | **Remaining issues** - |
| | 73 | |
| | 74 | |
| | 75 | ## DragonFly 3.2.1 Release Notes |
| | 76 | |
| | 77 | > ### Kernel changes |
| | 78 | |
| | 79 | |
| | 80 | > ### Hardware changes |
| | 81 | |
| | 82 | > ### New Multiprocessor-safe Work |
| | 83 | |
| | 84 | * Introduced a new cpu topology aware scheduler, usched_dfly, and made it the default. This scheduler implements several weighted algorithms and will first try to schedule threads to different sockets (to make best use of on-chip caches). As the load increases threads are then scheduled to real cores, and finally will be scheduled to hyper-threads. Threads with similar load characteristics tend to get spread out more. The scheduler also implements wait/wakeup pairing detection and tries to move related threads closer together to reduce inter-socket cache coherency bandwidth and share L3 caches. |
| | 85 | |
| | 86 | * Greatly reduced SMP bottlenecks in the unix domain socket code. |
| | 87 | |
| | 88 | * Implemented shared tokens to reduce unnecessary bottlenecks in the VM system, particularly for forked and threaded processes. |
| | 89 | |
| | 90 | * Introduced a major pmap optimization for x86-64 which allows page table pages to be shared between UNRELATED processes (so it works for process's separately exec'd or forked), in situations where those processes are mmap()ing the same thing. This feature works extremely well for both sysv shared memory and mmap()-based shared memory. In tests with postgres and a 6GB shared memory block the prior memory consumption from forking is now gone. This page table sharing works even better than the original shm_use_phys sysctl. Also observed significantly faster X application startup. |
| | 91 | |
| | 92 | > ### Userland changes |
| | 93 | * |
| | 94 | |
| | 95 | > ### Removals |
| | 96 | * |
| | 97 | |
| | 98 | > ### Contributed Software |
| | 99 | * Shipping with pkgsrc-2012Q3 built packages. |
| | 100 | * foo removed |
| | 101 | * foo replaced with bar |
| | 102 | * foor updated to foo2.1 |
| | 103 | |
| | 104 | >### Security related |
| | 105 | |
| | 106 | |
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