Log Message:
Update to 1.913:

STABLE Version 1.913 (September 13, 2007) Release Notes

* change: free disk space calculation was highly CPU intensive during
  write activity. This could reduce write performance severely, especially
  for huge volumes if a file manager or desktop applet regularly polled
  for disk space usage. Now the calculation is constant time, around only
  10 microseconds on a typical desktop, and it's completely independent
  of the volume size.
* fix: hibernation check was too rigid and mount was refused in read/write
  mode unnecessarily in some cases.
* all performance improvements included unchanged from the 1.910-RC test
  release. Please see those details below.

Version 1.910-RC (September 10, 2007) -- Release Notes

* change: significantly improved the performance of writing many files,
  typically by 50-1000% (copying files, unpacking, untarring packages,
  compilation, directory synchronization, ...).
* change: improved the performance of writing multi-GB size files,
  particularly after the creation of many thousands of other files.
  Previous disk space defragmentation is highly advised for the best
  possible speed. File level defragmentation is not enough.
* change: improved concurrent write performance.