[Btrfs-devel] performance fixes pushed out

[Chris Mason]

On Thu, Jun 21, 2007 at 12:56:14AM +1000, Bron Gondwana wrote:
> On Wed, Jun 20, 2007 at 08:57:11AM -0400, Chris Mason wrote:
> > Hello everyone,
> > 
> > While working on enospc, I hit some low hanging performance fixes in the
> > allocator.  For inserts into the extent tree, the allocator has to
> > search for a worst case group of available blocks.  The fix I pushed out
> > caches that search for reuse later.
> > 
> > Also, I added some btree readahead for the snapshot dropping code.
> > 
> > You can pull the latest from:
> > 
> > http://oss.oracle.com/mercurial/mason/btrfs
> 
> My maildirs died almost immediately this time, with one big folder
> coming up with files full of NULLs rather than the actual contents.
> I'm going to try to recreate it tomorrow - it's getting crazy late
> here and I had to much actual work[tm] (Cyrus patches) to spend too
> much time playing.
> 
> This is with a hg clone from about 16 hours ago, morning Australian
> time.

If you still have the bad FS, please try running btrfsck on it.

Thanks,
Chris