下面是性能表格:


Scenario

VB2005 Time (ms)

VB2008 Time (ms)

VB2008 is x times faster than VB2005 (2005 time/ 2008 time)

VB2008 takes x% as much time as VB2005 (100% * 2008 time/ 2005 time)

Build a large project (using background compilation)

222206.25

1352.88

164.25

0.61%

Build a large multi-project solution (explicit build operation)

1618604.75

57542.75

28.13

3.56%

Build a large multi-project solution (using background compilation)

222925.50

19861.88

11.22

8.91%

Responsiveness after adding a member to a class

327.00

36.50

8.96

11.16%

Responsiveness after opening a project

255551.25

38769.38

6.59

15.17%

Invoke Intellisense to see a list of types (first time)

1192.50

530.5

2.25

44.49%

Edit-and-Continue in a solution with xml comments (first time)

441.25

210.5

2.10

47.71%

Responsiveness after changing a method statement

390.25

236.38

1.65

60.57%

10 Steps in the debugger (subsequent times)

1850.75

1167.13

1.59

63.06%

Invoke Intellisense to see a list of types (subsequent times)

79.25

51.5

1.54

64.98%

F5 when the solution is already built (subsequent times)

385.20

278.7

1.38

72.35%

Item gets added to the Error List after making an error

531.25

394.5

1.35

74.26%

10 Steps in the debugger (first time)

1336.50

1150

1.16

86.05%

Responsiveness while background compiling on an open solution

4803.00

4284.75

1.12

89.21%

Load a large solution (subsequent times)

13667.5

12407.25

1.10

90.78%

Load a large solution (first time)

(Note: This is the improvement on XP. Vista has seen about twice as much improvement for the Load Solution scenario than XP. )

19946.25

18222

1.09

91.36%