Optimize dependencies

.gitignore

@@ -23,3 +23,4 @@ src/protos/*.rs
 /.cloud_certs/
 cloud_envs.fish
 /.claude/settings.local.json
+.codex

Cargo.toml

@@ -14,8 +14,8 @@ license = "MIT"
 license-file = "LICENSE.txt"
 
 [workspace.dependencies]
-bon = { version = "3", features = ["implied-bounds"] }
-derive_more = { version = "2.0", features = [
+bon = { version = "3", default-features = false, features = ["alloc", "implied-bounds"] }
+derive_more = { version = "2.0", default-features = false, features = [
     "constructor",
     "display",
     "from",
@@ -24,10 +24,10 @@ derive_more = { version = "2.0", features = [
     "try_into",
 ] }
 thiserror = "2"
-tonic = "0.14"
+tonic = { version = "0.14", default-features = false }
 tonic-prost = "0.14"
 tonic-prost-build = "0.14"
-opentelemetry = { version = "0.31", features = ["metrics"] }
+opentelemetry = { version = "0.31", default-features = false, features = ["metrics"] }
 prost = "0.14"
 prost-types = { version = "0.7", package = "prost-wkt-types" }
 pbjson = "0.9"

crates/client/Cargo.toml

@@ -22,7 +22,7 @@ anyhow = "1.0"
 async-trait = "0.1"
 backoff = "0.4"
 base64 = "0.22"
-bon = "3"
+bon = { version = "3", default-features = false, features = ["alloc"] }
 derive_more = { workspace = true }
 dyn-clone = "1.0"
 bytes = "1.10"
@@ -35,12 +35,18 @@ hyper-util = "0.1.16"
 opentelemetry = { workspace = true, features = ["metrics"], optional = true }
 parking_lot = "0.12"
 thiserror = { workspace = true }
-tokio = { version = "1.47", features = ["net", "time"] }
-tonic = { workspace = true, features = ["tls-ring", "tls-native-roots"] }
+tokio = { version = "1.47", default-features = false, features = [
+  "io-util",
+  "net",
+  "rt",
+  "sync",
+  "time",
+] }
+tonic = { workspace = true, default-features = false, features = ["tls-ring", "tls-native-roots", "channel"] }
 tower = { version = "0.5", features = ["util"] }
 tracing = "0.1"
 url = "2.5"
-uuid = { version = "1.18", features = ["v4"] }
+uuid = { version = "1.18", default-features = false, features = ["v4"] }
 rand = "0.10"
 
 [dependencies.temporalio-common]
@@ -54,6 +60,14 @@ prost = "0.14"
 prost-types = { workspace = true }
 rstest = "0.26"
 tempfile = "3"
+tokio = { version = "1.47", default-features = false, features = [
+  "io-util",
+  "macros",
+  "net",
+  "rt",
+  "sync",
+  "time",
+] }
 
 [lints]
 workspace = true

crates/common/Cargo.toml

@@ -42,7 +42,7 @@ crc32fast = "1"
 dirs = { version = "6.0", optional = true }
 derive_more = { workspace = true }
 erased-serde = "0.4"
-futures = "0.3"
+futures = { version = "0.3", default-features = false, features = ["alloc"] }
 futures-channel = { version = "0.3", default-features = false, features = [
   "std",
 ], optional = true }
@@ -55,17 +55,18 @@ hyper-util = { version = "0.1", features = [
   "tokio",
 ], optional = true }
 opentelemetry = { workspace = true, features = ["metrics"], optional = true }
-opentelemetry_sdk = { version = "0.31", features = [
+opentelemetry_sdk = { version = "0.31", default-features = false, features = [
   "rt-tokio",
   "metrics",
   "spec_unstable_metrics_views",
 ], optional = true }
-opentelemetry-otlp = { version = "0.31", features = [
+opentelemetry-otlp = { version = "0.31", default-features = false, features = [
   "tokio",
   "metrics",
-  "tls",
+  "tls-roots",
   "http-proto",
   "grpc-tonic",
+  "reqwest-rustls",
 ], optional = true }
 parking_lot = { version = "0.12" }
 prometheus = { version = "0.14", optional = true, default-features = false }
@@ -77,9 +78,13 @@ ringbuf = { version = "0.4", optional = true }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = { workspace = true }
 thiserror = { workspace = true }
-tokio = { version = "1.47", features = [], optional = true }
+tokio = { version = "1.47", default-features = false, features = [
+  "io-util",
+  "net",
+  "rt",
+], optional = true }
 toml = { version = "1.0", optional = true }
-tonic = { workspace = true }
+tonic = { workspace = true, default-features = false, features = ["transport", "codegen"] }
 tonic-prost = { workspace = true }
 tracing = "0.1"
 # TODO [rust-sdk-branch]: Is it reasonable to make this optional?
@@ -91,7 +96,7 @@ tracing-subscriber = { version = "0.3", default-features = false, features = [
 ] }
 tracing-core = "0.1"
 url = "2.5"
-uuid = { version = "1.18", features = ["v4"] }
+uuid = { version = "1.18", default-features = false, features = ["v4"] }
 pbjson = { workspace = true }
 
 [build-dependencies]

crates/sdk-core-c-bridge/Cargo.toml

@@ -30,10 +30,10 @@ rand = "0.10"
 rand_pcg = "0.10"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = { workspace = true }
-tokio = "1.47"
-tokio-stream = "0.1"
+tokio = { version = "1.47", default-features = false, features = ["sync"] }
+tokio-stream = { version = "0.1", default-features = false }
 tokio-util = "0.7"
-tonic = { workspace = true }
+tonic = { workspace = true, default-features = false }
 tracing = "0.1"
 url = "2.5"
 # This is only needed as an explicit dependency so we can enable static as a feature

crates/sdk-core/Cargo.toml

@@ -39,31 +39,30 @@ async-trait = "0.1"
 bon = { workspace = true }
 crossbeam-channel = "0.5"
 crossbeam-utils = "0.8"
-dashmap = "6.1"
 derive_more = { workspace = true }
 enum_dispatch = "0.3"
 enum-iterator = "2"
 flate2 = { version = "1.1", optional = true }
 futures = { version = "0.3", default-features = false }
 futures-util = { version = "0.3", default-features = false }
 gethostname = "1.0.2"
-governor = "0.10"
 hyper = { version = "1.7", optional = true }
 itertools = "0.14"
 lru = "0.16"
 mockall = "0.14"
 opentelemetry = { workspace = true, features = ["metrics"], optional = true }
-opentelemetry_sdk = { version = "0.31", features = [
+opentelemetry_sdk = { version = "0.31", default-features = false, features = [
   "rt-tokio",
   "metrics",
   "spec_unstable_metrics_views",
 ], optional = true }
-opentelemetry-otlp = { version = "0.31", features = [
+opentelemetry-otlp = { version = "0.31", default-features = false, features = [
   "tokio",
   "metrics",
-  "tls",
+  "tls-roots",
   "http-proto",
   "grpc-tonic",
+  "reqwest-rustls",
 ], optional = true }
 parking_lot = { version = "0.12" }
 pid = "4.0"
@@ -84,20 +83,21 @@ slotmap = "1.0"
 sysinfo = { version = "0.38", default-features = false, features = ["system"] }
 tar = { version = "0.4", optional = true }
 thiserror = { workspace = true }
-tokio = { version = "1.47", features = [
+tokio = { version = "1.47", default-features = false, features = [
   "rt",
   "rt-multi-thread",
   "parking_lot",
   "time",
   "fs",
   "process",
+  "macros",
 ] }
 tokio-util = { version = "0.7", features = ["io", "io-util"] }
-tokio-stream = "0.1"
-tonic = { workspace = true, features = ["tls-ring", "tls-native-roots"] }
+tokio-stream = { version = "0.1", default-features = false }
+tonic = { workspace = true, default-features = false, features = ["tls-ring", "tls-native-roots", "transport", "codegen"] }
 tracing = "0.1"
 url = "2.5"
-uuid = { version = "1.18", features = ["v4"] }
+uuid = { version = "1.18", default-features = false, features = ["v4"] }
 # Only need specific features to decompress zip files for ephemeral server download
 zip = { version = "8.4", optional = true, default-features = false, features = [
   "deflate",
@@ -138,16 +138,18 @@ hyper-util = { version = "0.1", features = [
 rstest = "0.26"
 semver = "1.0"
 temporalio-sdk = { path = "../sdk" }
-tokio = { version = "1.47", features = [
+tokio = { version = "1.47", default-features = false, features = [
   "rt",
   "rt-multi-thread",
   "parking_lot",
   "time",
   "fs",
   "process",
   "test-util",
+  "macros",
 ] }
-tokio-stream = { version = "0.1", features = ["net"] }
+tokio-stream = { version = "0.1", default-features = false, features = ["net"] }
+tonic = { workspace = true, default-features = false, features = ["router"] }
 tracing-subscriber = { version = "0.3", default-features = false }
 trybuild = { version = "1.0", features = ["diff"] }
 
@@ -202,6 +204,7 @@ name = "workflow_replay"
 path = "benches/workflow_replay_bench.rs"
 test = false
 harness = false
+required-features = ["test-utilities"]
 
 # The integration test runner should compile with the same configuration as the
 # rest of the integration tests so that artifacts are shared and no additional

crates/sdk-core/src/pollers/poll_buffer.rs

@@ -10,7 +10,6 @@ use crate::{
 use backoff::{SystemClock, backoff::Backoff, exponential::ExponentialBackoff};
 use crossbeam_utils::atomic::AtomicCell;
 use futures_util::{FutureExt, StreamExt, future::BoxFuture};
-use governor::{Quota, RateLimiter};
 use std::{
     cmp,
     fmt::Debug,
@@ -19,7 +18,7 @@ use std::{
         Arc,
         atomic::{AtomicBool, AtomicUsize, Ordering},
     },
-    time::{Duration, SystemTime},
+    time::{Duration, Instant, SystemTime},
 };
 use temporalio_client::{
     ERROR_RETURNED_DUE_TO_SHORT_CIRCUIT, request_extensions::NoRetryOnMatching,
@@ -45,6 +44,32 @@ use tracing::Instrument;
 
 type PollReceiver<T, SK> =
     Mutex<UnboundedReceiver<pollers::Result<(T, OwnedMeteredSemPermit<SK>)>>>;
+
+struct PollRateLimiter {
+    interval: Duration,
+    next_allowed_at: Mutex<Instant>,
+}
+
+impl PollRateLimiter {
+    fn new(polls_per_second: f64) -> Self {
+        Self {
+            interval: Duration::from_secs_f64(polls_per_second.recip()),
+            next_allowed_at: Mutex::new(Instant::now()),
+        }
+    }
+
+    async fn wait(&self) {
+        let scheduled_at = {
+            let mut next_allowed_at = self.next_allowed_at.lock().await;
+            let now = Instant::now();
+            let scheduled_at = (*next_allowed_at).max(now);
+            *next_allowed_at = scheduled_at + self.interval;
+            scheduled_at
+        };
+        tokio::time::sleep_until(scheduled_at.into()).await;
+    }
+}
+
 pub(crate) struct LongPollBuffer<T, SK: SlotKind> {
     buffered_polls: PollReceiver<T, SK>,
     shutdown: CancellationToken,
@@ -163,14 +188,11 @@ impl LongPollBuffer<PollActivityTaskQueueResponse, ActivitySlotKind> {
     ) -> Self {
         let pre_permit_delay = options
             .max_worker_acts_per_second
-            .and_then(|ps| {
-                Quota::with_period(Duration::from_secs_f64(ps.recip()))
-                    .map(|q| Arc::new(RateLimiter::direct(q)))
-            })
+            .map(|ps| Arc::new(PollRateLimiter::new(ps)))
             .map(|rl| {
                 move || {
                     let rl = rl.clone();
-                    async move { rl.until_ready().await }.boxed()
+                    async move { rl.wait().await }.boxed()
                 }
             });
         let no_retry = if matches!(poller_behavior, PollerBehavior::Autoscaling { .. }) {