On Wed, Feb 23, 2011 at 11:54:58AM -0600, Eric Sandeen wrote: > On 2/23/11 11:42 AM, Jesse Keating wrote: > > On 2/23/11 5:00 AM, Josef Bacik wrote: > >> This would be a great thing in general since the default ext* image is > >> shrunk down to be installed which creates a bad fs layout which has > >> performance implications. > > > > Can you expand upon this more? The filesystem is shrunk down when the > > live image is built, but then once it is installed the fs is resized to > > fill out the physical disk / partition it is being installed to. > > Shrinking down the filesystem tends to scramble it a bit. All the allocator > decisions that were made based on fs size at the time of install go out the > window as resize2fs fills in every hole it can find to maximally compress the > fs. > Is there some sort of "sparsifying defrag" we could do after copying the image over? The dd-based install is so fast that we could actually afford another pass if we needed it IMHO. --CJD -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
