rstrong's blog
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Application Update File Fragmentation (update)
April 20th, 2011 by rstrong
Back on December 4th, 2010 I blogged about Application Update file fragmentation and the new lack thereof and wanted to write a quick update after checking both my Mac and Windows systems.
On my Mac, using hfsdebug (download is no longer available), there were 199 files fragmented ranging from 5 fragments to 874 fragments with most of the files being in my local hg repos. The cool thing is that not a single Firefox application file was fragmented.
On my Windows system that I disabled the OS provided defragmentation application about a half a year ago, using Contig, I just checked the Firefox application files of which there were 4 fragmented files ranging from 2 to 4 fragments (shown below). The two dll’s are the only ones to be concerned about and they are by no means badly fragmented.
\D3DCompiler_42.dll is in 4 fragments
\d3dx9_42.dll is in 4 fragments
\removed-files is in 2 fragments
\{972ce4c6-7e08-4474-a285-3208198ce6fd}\preview.png is in 2 fragments
The 4 files have fragments because they were added and have never been patched. I hope to come up with a solution so they aren’t fragmented in Bug 616390 though I am not planning on working on that anytime soon.
Now I can turn back on automatic defragmentation back on my Windows system.