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Deduplication for the masses
,----[ Quote ]
| What about the rest of us? Smaller businesses
| will have to wait. There's a lot of voices
| calling for a Linux-based deduping file
| system - there's even one, lessfs, under
| development but it's still in beta, and I
| wouldn't trust my backups to a beta-level
| file system - would you?
|
| But the signs are that Linux will sprout at
| least one such add-on and may eventually
| include such functionality in the kernel. The
| problem is that enterprise-level data is
| hugely expensive because it meeds to be
| surrounded by management software, by
| redundant components and by other subsystems
| that ensure that not a single bit is lost.
| That makes deduping, rather than buying more
| storage, economically viable.
`----
http://community.zdnet.co.uk/blog/0,1000000567,10014577o-114626b,00.htm
2.6.32 is Out! But a Word of Caution Around CFQ
,----[ Quote ]
| In the 2.6.32 kernel there was a change to
| the CFQ default behavior to help improve
| interactiveness which is typically important
| for desktops and laptops or anything where
| something like media playback is important.
| However, this can have an impact on IO
| throughput performance. The author of CFQ,
| Jens Axboe, has a good discussion of the
| changes in an article on lwn.
`----
http://www.linux-mag.com/id/7637/
Recent:
Linux Kernel 2.6.32 Improves the Btrfs Filesystem
,----[ Quote ]
| None other than the father of Linux, Linus
| Torvalds, announced last night, on December
| 2nd, the immediate availability for download
| of Linux kernel 2.6.32, a release that brings
| lots of improvements to the Btrfs filesystem,
| support for ACPI 4.0 and the S+core
| architecture, 3D and KMS support for the ATI
| Radeon R600/R700 graphics cards, support for
| Intel Moorestown, and many other goodies for
| all Linux users around the world.
`----
http://news.softpedia.com/news/Linux-Kernel-2-6-32-Improves-the-Btrfs-Filesystem-128685.shtml
What's new in Linux 2.6.32
,----[ Quote ]
| 3D support for newer Radeon graphics chips,
| better use of power saving features offered
| by the latest hardware and numerous
| enhancements to KVM and Btrfs are some of
| the outstanding items among the many
| thousands of changes undertaken for the
| latest kernel version. Various other
| improvements should also make Linux 2.6.32
| more reactive and as a result, feel faster.
`----
http://www.h-online.com/open/features/What-s-new-in-Linux-2-6-32-872271.html
Kernel Log: Coming in 2.6.32 (Part 6): Infrastructure
,----[ Quote ]
| Devtmpfs, aka 'devfs 2.0' to its
| detractors, should allow the Linux kernel
| to start faster and run without udev.
| Support has been added for ACPI 4.0 and
| there are two new make targets which
| generate kernel configurations attuned to
| the running system. Changes to the power
| management subsystem increase data
| throughput and allow better use of runtime
| power saving features on modern I/O
| devices.
`----
http://www.h-online.com/open/news/item/Kernel-Log-Coming-in-2-6-32-Part-6-Infrastructure-869973.html
Linux 2.6.32 Kernel Benchmarks
,----[ Quote ]
| With the Linux 2.6.32 kernel being released
| in a few days, we found it time to
| benchmark this newest kernel release that
| brings new drivers, kernel mode-setting
| improvements, virtualization enhancements,
| and more.
|
| [...]
|
| While there are just nine test results
| shown in this article, we have been running
| more Linux 2.6.32 kernel tests on other
| systems and with more test profiles.
| Besides the performance drops when using
| EXT4 and then a few encoding improvements,
| we have not encountered many performance-
| related changes with the Linux 2.6.32
| kernel.
`----
http://www.phoronix.com/scan.php?page=article&item=linux_2632_benchmarks&num=1
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