Cap max busy poll to 100ms

Updates #75

CHANGELOG.md

@@ -7,6 +7,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 [Unreleased]: https://github.com/zombiezen/go-sqlite/compare/v1.1.1...main
 
+## [Unreleased][]
+
+### Changed
+
+- Set the maximum time between busy polls to 100 milliseconds
+  (follow-on from [#75](https://github.com/zombiezen/go-sqlite/issues/75)).
+
 ## [1.1.1][] - 2024-02-02
 
 Version 1.1.1 improves performance on write-contended workloads.

sqlite.go

@@ -348,22 +348,6 @@ var busyDelays = [...]time.Duration{
 	50 * time.Millisecond,
 	50 * time.Millisecond,
 	100 * time.Millisecond,
-	250 * time.Millisecond,
-	250 * time.Millisecond,
-	500 * time.Millisecond,
-
-	1 * time.Second,
-	2 * time.Second,
-	5 * time.Second,
-	10 * time.Second,
-	15 * time.Second,
-	20 * time.Second,
-	25 * time.Second,
-	25 * time.Second,
-	25 * time.Second,
-	50 * time.Second,
-	50 * time.Second,
-	100 * time.Second,
 }
 
 var busyHandlers sync.Map // sqlite3* -> func(int) bool