From dcdfd1a8137c72f34acaa5b1a64bafaf2ac5e649 Mon Sep 17 00:00:00 2001
From: full-bars <45684698+full-bars@users.noreply.github.com>
Date: Mon, 4 May 2026 14:57:34 -0700
Subject: [PATCH] perf: increase InitialContractTransferByteCount to 256KiB

Increases the initial contract size to reduce negotiation overhead. At the current 16KiB limit, the 80% ContractFillFraction threshold (~13KB) is often too small to accommodate a final ~1.4KB packet, leading to frequent contract exhaustion logs and performance bottlenecks.
---
 transfer_contract_manager.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/transfer_contract_manager.go b/transfer_contract_manager.go
index b825350..c403c77 100644
--- a/transfer_contract_manager.go
+++ b/transfer_contract_manager.go
@@ -195,7 +195,7 @@ func DefaultContractManagerSettingsWithBufferSize(bufferSize int) *ContractManag
 	}
 	return &ContractManagerSettings{
 		SequenceBufferSize:                bufferSize,
-		InitialContractTransferByteCount:  kib(16),
+		InitialContractTransferByteCount:  kib(256),
 		StandardContractTransferByteCount: mib(128),
 		ContractTransferByteSeqScale:      4,