Three Months Ended | Six Months Ended | |||||||||||||||
April 3, | April 4, | April 3, | April 4, | |||||||||||||
2010 | 2009 | 2010 | 2009 | |||||||||||||
GAAP operating margin | 4.8 | % | (0.6 | )% | 6.8 | % | 0.4 | % | ||||||||
Stock-based compensation | 5.1 | % | 3.0 | % | 5.2 | % | 3.7 | % | ||||||||
Amortization of acquired intangibles | 3.7 | % | 3.8 | % | 3.6 | % | 3.7 | % | ||||||||
Restructuring charges | -- | % | 4.3 | % | -- | % | 2.1 | % | ||||||||
Non-GAAP operating margin | 13.6 | % | 10.5 | % | 15.6 | % | 9.9 | % |