From 11893e8eee7f8560c0dcd1fa6a6af97e2523938f Mon Sep 17 00:00:00 2001
From: Lingjie <lilingjie@sensetime.com>
Date: Wed, 13 Dec 2023 15:06:03 +0800
Subject: [PATCH] Speedup dumpOnArgLevel by using lazy initialization (#524)

---
 dipu/torch_dipu/csrc_dipu/aten/ops/OpUtils.hpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dipu/torch_dipu/csrc_dipu/aten/ops/OpUtils.hpp b/dipu/torch_dipu/csrc_dipu/aten/ops/OpUtils.hpp
index 213f3ff3e3..157d927979 100644
--- a/dipu/torch_dipu/csrc_dipu/aten/ops/OpUtils.hpp
+++ b/dipu/torch_dipu/csrc_dipu/aten/ops/OpUtils.hpp
@@ -35,8 +35,8 @@ inline void synchronizeIfEnable() {
 }
 
 inline int dumpOpArgLevel() {
-  const char* env_ptr = std::getenv("DIPU_DUMP_OP_ARGS");
-  int level = env_ptr ? std::atoi(env_ptr) : 0;
+  static const char* env_ptr = std::getenv("DIPU_DUMP_OP_ARGS");
+  static int level = env_ptr ? std::atoi(env_ptr) : 0;
   return level;
 }