diff --git a/0085-expand-thread-rpc-msg-pool-size.patch b/0085-expand-thread-rpc-msg-pool-size.patch
new file mode 100644
index 0000000..f76a0f7
--- /dev/null
+++ b/0085-expand-thread-rpc-msg-pool-size.patch
@@ -0,0 +1,25 @@
+From 6c88041590ef9f79e85a243fa905267898f3ab98 Mon Sep 17 00:00:00 2001
+From: wu-changsheng <wuchangsheng2@huawei.com>
+Date: Mon, 5 Sep 2022 16:54:55 +0800
+Subject: [PATCH] expand thread rpc msg pool size
+
+---
+ src/lstack/core/lstack_thread_rpc.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/lstack/core/lstack_thread_rpc.c b/src/lstack/core/lstack_thread_rpc.c
+index a6e9725..c9fc4e9 100644
+--- a/src/lstack/core/lstack_thread_rpc.c
++++ b/src/lstack/core/lstack_thread_rpc.c
+@@ -23,7 +23,7 @@
+ #include "lstack_dpdk.h"
+ #include "lstack_thread_rpc.h"
+ 
+-#define RPC_MSG_MAX            32
++#define RPC_MSG_MAX            512
+ #define RPC_MSG_MASK           (RPC_MSG_MAX - 1)
+ struct rpc_msg_pool {
+     struct rpc_msg msgs[RPC_MSG_MAX];
+-- 
+2.23.0
+
diff --git a/gazelle.spec b/gazelle.spec
index 48550f9..8f5ecbe 100644
--- a/gazelle.spec
+++ b/gazelle.spec
@@ -2,7 +2,7 @@
 
 Name:          gazelle
 Version:       1.0.1
-Release:       14
+Release:       15
 Summary:       gazelle is a high performance user-mode stack
 License:       MulanPSL-2.0
 URL:           https://gitee.com/openeuler/gazelle
@@ -99,6 +99,7 @@ Patch9081:     0081-read-data-with-err-event.patch
 Patch9082:     0082-del-gazelle-ring-cons.tail-atomic-protect.patch
 Patch9083:     0083-fix-send-return-vale.patch
 Patch9084:     0084-add-examples.patch
+Patch9085:     0085-expand-thread-rpc-msg-pool-size.patch
 
 %description
 %{name} is a high performance user-mode stack.
@@ -139,6 +140,9 @@ install -Dpm 0640 %{_builddir}/%{name}-%{version}/src/ltran/ltran.conf       %{b
 %config(noreplace) %{conf_path}/ltran.conf
 
 %changelog
+* Mon Sep 05 2022 wuchangsheng <wuchangsheng2@huawei.com> - 1.0.1-15
+- expand rpc msg pool size
+
 * Mon Sep 05 2022 wuchangsheng <wuchangsheng2@huawei.com> - 1.0.1-14
 - backport bugfix and doc