diff --git a/apps/benchmark.c b/apps/benchmark.c
index dd8542a..241c23c 100644
--- a/apps/benchmark.c
+++ b/apps/benchmark.c
@@ -13,6 +13,10 @@
 #include <tutil.h>
 #endif
 
+// 添加栈测量的外部声明
+extern void* get_stack_start(void);
+extern size_t get_stack_size(void);
+
 void
 bench(size_t runs)
 {
@@ -35,16 +39,29 @@ bench(size_t runs)
     }
 
     unsigned long long len;
+    size_t max_stack_size = 0;
+    size_t current_stack_size = 0;
+    void* stack_start = get_stack_start();
 
     printf("%s (%zu iterations)\n", CRYPTO_ALGNAME, runs);
 
     BENCH_CODE_1(runs);
+    // 记录密钥生成前的栈指针
+    get_stack_size(); // 初始化栈测量
     crypto_sign_keypair(pk[i], sk[i]);
+    // 计算密钥生成过程中的最大栈使用量
+    current_stack_size = (char*)stack_start - (char*)&current_stack_size;
+    if (current_stack_size > max_stack_size) max_stack_size = current_stack_size;
     BENCH_CODE_2("keypair");
 
     BENCH_CODE_1(runs);
     len = sm_len;
+    // 记录签名前的栈指针
+    get_stack_size(); // 重新初始化栈测量
     crypto_sign(sm[i], &len, m[i], m_len, sk[i]);
+    // 计算签名过程中的最大栈使用量
+    current_stack_size = (char*)stack_start - (char*)&current_stack_size;
+    if (current_stack_size > max_stack_size) max_stack_size = current_stack_size;
     if (len != sm_len)
         abort();
     BENCH_CODE_2("sign");
@@ -52,11 +69,19 @@ bench(size_t runs)
     int ret;
     BENCH_CODE_1(runs);
     len = m_len;
+    // 记录验证前的栈指针
+    get_stack_size(); // 重新初始化栈测量
     ret = crypto_sign_open(m[i], &len, sm[i], sm_len, pk[i]);
+    // 计算验证过程中的最大栈使用量
+    current_stack_size = (char*)stack_start - (char*)&current_stack_size;
+    if (current_stack_size > max_stack_size) max_stack_size = current_stack_size;
     if (ret)
         abort();
     BENCH_CODE_2("verify");
 
+    // 输出最大栈使用量
+    printf("Maximum stack usage: %zu bytes\n", max_stack_size);
+
     free(pkbuf);
     free(skbuf);
     free(smbuf);