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Signed-off-by: Haile Lagi <[email protected]>
hailelagi · Nov 4, 2024 · d448ae1 · d448ae1
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diff --git a/content/notes/art_of_multicore.md b/content/notes/art_of_multicore.md
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+---
+title: "The art of multicore"
+date: 2024-11-04T10:13:39+01:00
+draft: true
+---
+
+# Introduction
+- liveness & safety
+- performance often requires looking behind the invisible hand of the memory heirarchy
+- concurrent shared counter viz finding primes `volatile counter` + thread local stack copying
+- beer cans are conditional variables
+
+## the problems
+at the heart are communication and co-ordination problems
+
+- mutual exclusion
+- starvation-freedom
+- producer-consumer
+- the readers-writers problem
+
+> Amdahl’s Law says that even if we manage to parallelize 90% of the solution, but not the remaining 10%, then we end up with a five-fold speedup, but not a ten-fold speedup. 
+
+
+# Principles
+## Mutual Exclusion
+Threads are state machines, events are transitions of state.
+Time is is an abstracct property independent of the wall clock.
+We use the relationship -> precedence.
+
diff --git a/content/cpp-weirdness.md → content/notes/cpp-weirdness.md b/content/cpp-weirdness.md → content/notes/cpp-weirdness.md
diff --git a/content/writing/query_execution.md → content/notes/query_execution.md b/content/writing/query_execution.md → content/notes/query_execution.md
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 ---
-title: "Query_execution"
+title: "Query Execution"
 date: 2024-10-27T14:32:18+01:00
 draft: true
 ---

diff --git a/content/writing/design-patterns.md b/content/writing/design-patterns.md
diff --git a/content/writing/dining.md b/content/writing/dining.md