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Single Time Machine Backups

Tired of Time Machine running all the time? You can turn it off in the Time Machine preference pane, but still initiate a single backup by choosing Back Up Now from Time Machine's menu bar icon. Of course, your backup is much less likely to be up to date, but Time Machine won't be taking any resources while you're trying to work.

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MacTech Benchmarks Parallels Desktop and VMware Fusion

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Our friends over at MacTech have taken on the laborious task of running benchmarks on the popular virtualization programs Parallels Desktop and VMware Fusion, comparing them against each other, running both Windows XP and Windows Vista, against Apple's Boot Camp, and against a standard PC laptop.

MacTech's tests included real-world activities in each of the main Microsoft Office 2007 applications (Outlook, Word, Excel, and PowerPoint), along with tests for network and filesystem I/O, Internet Explorer, and cross-platform tasks that involve working with the host operating system (like viewing a PDF attachment to an Outlook email message in Apple's Preview).

The full MacTech article makes for a fascinating read, but it seems to boil down to the following conclusions.

  • Windows XP outperforms Windows Vista by 17 to 30 percent in virtualization, so if you want the fastest Windows performance, stick with Windows XP.
  • When running Windows XP, Parallels Desktop was somewhat faster than VMware Fusion, and even a bit faster than Boot Camp.
  • If you want to run Windows Vista, VMware Fusion provides noticeably better performance than Parallels Desktop on all tasks involving raw processing, whereas Parallels Desktop offers significantly better integration with Mac OS X (and thus real-world performance) for all cross-platform tasks.

Keep in mind that these conclusions are relevant only for the things MacTech tested, which did not include gaming (where Boot Camp probably has the edge over both virtualization options) or applications that can use multiple processors (where VMware Fusion would probably outperform Parallels Desktop).

If you want to analyze MacTech's results further, you can download an Excel spreadsheet containing all the test data.

 

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