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100 - PowerPoint PPT Presentation


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t1. 100. t2. Lock-X(A). t3. Read(A). t4. A=A-30. Lock-X(A). t5. Write(A). 70. Wait. t6. Commit( 含 Unlock-X(A)). Read(A). A=A*2. t7. t8. 140. Write(A). t9. Commit( 含 Unlock-X(A)).

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PowerPoint Slideshow about '100' - ocean-young


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Presentation Transcript
slide1

t1

100

t2

Lock-X(A)

t3

Read(A)

t4

A=A-30

Lock-X(A)

t5

Write(A)

70

Wait

t6

Commit(含Unlock-X(A))

Read(A)

A=A*2

t7

t8

140

Write(A)

t9

Commit(含Unlock-X(A))