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10
Concurrent Systems/notes/6a - Alternatives to Atomicity.md
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@ -5,4 +5,12 @@ Let us define $op ->_{proc} op'$ to hold whenever there exists a process p that
![[Pasted image 20250324082545.png]]
The problem with sequential consistency is that it
>[!warning]
>The problem with sequential consistency is that it is NOT compositional.
Consider for example the following two processes:
```
p1: Q.enq(a); Q'.enq(b'); Q'deq()->b'
p2: Q'.enq(a'); Q.enq(b); Q.deq()->b
```