vault backup: 2025-03-10 22:28:12
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2 changed files with 23 additions and 2 deletions
20
.obsidian/workspace.json
vendored
20
.obsidian/workspace.json
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@ -34,6 +34,22 @@
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"icon": "lucide-file",
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"title": "3b - Aravind's algorithm and improvements"
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}
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},
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{
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"id": "b51891c564d42ef8",
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"type": "leaf",
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"state": {
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"type": "pdf",
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"state": {
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"file": "Concurrent Systems/slides/class 3.pdf",
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"page": 17,
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"left": -16,
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"top": 596,
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"zoom": 0.9236935866983375
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},
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"icon": "lucide-file-text",
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"title": "class 3"
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}
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}
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],
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"currentTab": 1
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@ -210,12 +226,12 @@
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},
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"active": "dd6c003f9d17b0e9",
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"lastOpenFiles": [
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"Concurrent Systems/notes/3a - Hardware primitives & Lamport Bakery algorithm.md",
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"Concurrent Systems/slides/class 3.pdf",
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"Concurrent Systems/notes/3b - Aravind's algorithm and improvements.md",
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"Concurrent Systems/notes/3a - Hardware primitives & Lamport Bakery algorithm.md",
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"Concurrent Systems/notes/1 - CS Basics.md",
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"Concurrent Systems/notes/2b - Round Robin algorithm.md",
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"Concurrent Systems/notes/2 - Fast mutex by Lamport.md",
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"Concurrent Systems/slides/class 3.pdf",
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"Pasted image 20250310172134.png",
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"Pasted image 20250310103703.png",
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"Concurrent Systems/notes/1 - CS Basics2.md",
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@ -91,3 +91,8 @@ lock(i) :=
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until foreach j != i, STAGE[j] = 0
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```
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- $p_n$ invokes lock alone, completes its CS and its new DATE is n
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**Lemma 1:** DATE's bounds are $[0, n]$
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*Proof:*
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For the upper bound, it's trivial: DATE is either decreased or set to $n$.
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