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Super-powered superpages The Beastie sent up FreeBSD 7.2 today, topping off the recent bout of major BSD releases last week.
FreeBSD 7.2 mostly includes functionality updates and a few bug
fixes, although there's a handful of new features baked inside too,
such as improved memory management with superpages.
The OS's virtual memory subsystem now supports fully transparent use
of superpages for application memory (although the feature is disabled
by default). An application's memory pages will now be automatically
switched between normal and superpages without any modification to code.
According to FreeBSD's release notes:
This change offers the benefit of large page sizes such as
improved virtual memory efficiency and reduced TLB (translation
lookaside buffer) misses without downsides like application chnages and
virtual memory inflexibility.
Other changes include improvements to the boot loader as well as the
kernel's addressable virtual memory space getting bumped to 6GB so
subsystems can use more memory. The OS also now supports the UltraSPARC
II processor family.
As with previous 7.x releases, version 7.2 retains the ZFS v6 code, with ZFS v13 arriving later in FreeBSD 8.0.
On the desktop corner, FreeBSD has been updated to Gnome 2.26 and
KDE 4.2.2. That's the first time FreeBSD has included version 4.x of
KDE — although the latest desktop flavor of the OS, PC-BSD 7.1, has been rocking KDE 4.2.2 since April.
More info on the changes can be found in the detailed release notes. The release ISO is available through a variety of FTP mirrors located here or through yonder torrent tracker. ®
Read the original article: http://www.theregister.co.uk/2009/05/04/freebsd_sevenpointtwo_release/
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