diff --git a/Cargo.lock b/Cargo.lock
index e783abc88d0..2caf0078983 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6060,6 +6060,7 @@ name = "solana-core"
 version = "2.1.0"
 dependencies = [
  "ahash 0.8.10",
+ "arrayvec",
  "assert_matches",
  "base64 0.22.1",
  "bincode",
diff --git a/Cargo.toml b/Cargo.toml
index 8f96b3da135..e3398490769 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -157,6 +157,7 @@ ark-ff = "0.4.0"
 ark-serialize = "0.4.0"
 array-bytes = "=1.4.1"
 arrayref = "0.3.7"
+arrayvec = "0.7.4"
 assert_cmd = "2.0"
 assert_matches = "1.5.0"
 async-channel = "1.9.0"
diff --git a/core/Cargo.toml b/core/Cargo.toml
index 09aaa981310..287cea0dc8e 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -15,6 +15,7 @@ codecov = { repository = "solana-labs/solana", branch = "master", service = "git
 
 [dependencies]
 ahash = { workspace = true }
+arrayvec = { workspace = true }
 base64 = { workspace = true }
 bincode = { workspace = true }
 bs58 = { workspace = true }
diff --git a/core/src/banking_stage/transaction_scheduler/scheduler_controller.rs b/core/src/banking_stage/transaction_scheduler/scheduler_controller.rs
index 20462a2a1b4..b84af5a902c 100644
--- a/core/src/banking_stage/transaction_scheduler/scheduler_controller.rs
+++ b/core/src/banking_stage/transaction_scheduler/scheduler_controller.rs
@@ -21,6 +21,7 @@ use {
         packet_deserializer::PacketDeserializer,
         ForwardOption, TOTAL_BUFFERED_PACKETS,
     },
+    arrayvec::ArrayVec,
     crossbeam_channel::RecvTimeoutError,
     solana_compute_budget::compute_budget_processor::process_compute_budget_instructions,
     solana_cost_model::cost_model::CostModel,
@@ -479,14 +480,14 @@ impl SchedulerController {
 
         const CHUNK_SIZE: usize = 128;
         let lock_results: [_; CHUNK_SIZE] = core::array::from_fn(|_| Ok(()));
+
+        let mut arc_packets = ArrayVec::<_, CHUNK_SIZE>::new();
+        let mut transactions = ArrayVec::<_, CHUNK_SIZE>::new();
+        let mut fee_budget_limits_vec = ArrayVec::<_, CHUNK_SIZE>::new();
+
         let mut error_counts = TransactionErrorMetrics::default();
         for chunk in packets.chunks(CHUNK_SIZE) {
             let mut post_sanitization_count: usize = 0;
-
-            let mut arc_packets = Vec::with_capacity(chunk.len());
-            let mut transactions = Vec::with_capacity(chunk.len());
-            let mut fee_budget_limits_vec = Vec::with_capacity(chunk.len());
-
             chunk
                 .iter()
                 .filter_map(|packet| {
@@ -528,10 +529,10 @@ impl SchedulerController {
             let mut post_transaction_check_count: usize = 0;
             let mut num_dropped_on_capacity: usize = 0;
             let mut num_buffered: usize = 0;
-            for (((packet, transaction), fee_budget_limits), _) in arc_packets
-                .into_iter()
-                .zip(transactions)
-                .zip(fee_budget_limits_vec)
+            for (((packet, transaction), fee_budget_limits), _check_result) in arc_packets
+                .drain(..)
+                .zip(transactions.drain(..))
+                .zip(fee_budget_limits_vec.drain(..))
                 .zip(check_results)
                 .filter(|(_, check_result)| check_result.is_ok())
             {
diff --git a/programs/sbf/Cargo.lock b/programs/sbf/Cargo.lock
index 9b0d2ca154d..f34296cfd69 100644
--- a/programs/sbf/Cargo.lock
+++ b/programs/sbf/Cargo.lock
@@ -4832,6 +4832,7 @@ name = "solana-core"
 version = "2.1.0"
 dependencies = [
  "ahash 0.8.10",
+ "arrayvec",
  "base64 0.22.1",
  "bincode",
  "bs58",