Update Balter to 0.3.0

With the recent overhaul of the TPS sampling mechanism and removing
Pin<Box<T>> from the hot-path, the newest Balter release is faster and
more accurate than ever. Unfortunately also broke the distributed
functionality, but that was experimental anyways.

CHANGELOG.md

@@ -0,0 +1,26 @@
+# CHANGELOG
+
+## Balter 0.3.0  (balter-macros 0.2.0)
+
+### Overhauled TPS sampling mechanism
+After a ton of experimentation with different ways to measure TPS, I settled upon having
+long-running tasks which all coordinate with the primary task via Atomics, and using ArcSwap
+for anything that could not be done via an Atomic. This seems to hit the sweet spot of
+accurate measurements and performance.
+
+### Pin<Box<impl Future>> no longer in the hot path!
+
+This is a major refactor which moves all Pin<Box<T>>'s out of the hot path. I am planning to
+put together more documentation and benchmarks surrounding this change, since it surprised me
+at the cost of Pin<Box<T>>. With the minimal benchmarking I've done, the performance
+difference is fairly massive!
+
+Unfortunately, the cost is that I've broken the distributed runtime functionality. It should
+be a relatively simple fix to patch up the types, but I want to focus on stabalizing the
+various controller logic first.
+
+### Minor Changes
+
+- Added a `direct()` scenario which is primarily useful for development.
+- Added some benchmarking code and a section for thorough benchmarking in the codebase.
+- Various minor bug fixes.

balter-core/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "balter"
 license = "MIT"
-version = "0.2.1"
+version = "0.3.0"
 edition = "2021"
 authors = ["Byron Wasti <[email protected]>"]
 homepage = "https://github.com/byronwasti/balter"
@@ -14,12 +14,12 @@ publish = true
 
 [dependencies]
 arc-swap = "1.6.0"
-balter-macros = { version = "0.1", path = "../balter-macros" }
+balter-macros = { version = "0.2", path = "../balter-macros" }
 governor = "0.6.0"
 humantime = "2.1.0"
 pin-project = "1.1.2"
 thiserror = "1.0.56"
-tokio = { version = "1.29.1", features = ["rt"] }
+tokio = { version = "1.29.1", features = ["rt", "time"] }
 tracing = "0.1.37"
 
 async-channel = { version = "2.1.1", optional = true }

balter-macros/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "balter-macros"
 license = "MIT"
-version = "0.1.4"
+version = "0.2.0"
 edition = "2021"
 readme = "README.md"
 authors = ["Byron Wasti <[email protected]>"]