Re: Data Deduplication with the help of an online filesystem check

2009-06-04 Thread Thomas Glanzmann
Hello Chris, My question is now, how often can a block in btrfs be refferenced? The exact answer depends on if we are referencing it from a single file or from multiple files. But either way it is roughly 2^32. could you please explain to me what underlying datastructure is used to

Re: New experimental btrfs branch ready for testing

2009-06-04 Thread Steven Pratt
Chris Mason wrote: On Thu, Jun 04, 2009 at 02:02:20PM -0500, Steven Pratt wrote: Chris Mason wrote: Hello everyone, Yan Zheng has been doing some major surgery to the back references and extent allocation code, tackling bottlenecks in the code that tracks extents. It scales better

Re: New experimental btrfs branch ready for testing

2009-06-04 Thread Chris Mason
On Thu, Jun 04, 2009 at 02:19:00PM -0500, Steven Pratt wrote: I've setup git branches called newformat where you can pull the new code. For the kernel (based on 2.6.30-rc7): git pull git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable.git newformat So I started