From 69c47578a5388c28ba4a5cace6ed253c501893ed Mon Sep 17 00:00:00 2001
From: Ruomio <1065940593@qq.com>
Date: Mon, 26 Jan 2026 20:52:19 +0800
Subject: [PATCH] fix(python_path): ensure child process uses same Python path
 as parent

* Fix issue where child process fallback to system Python path (/bin/python3)
* Root cause: os/subprocess calls in script use system PATH instead of venv
* Solution: inherit parent's Python path (sys.executable) to avoid path drift
---
 perf/ci-perf-compare.py | 3 ++-
 perf/server.py          | 5 +++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/perf/ci-perf-compare.py b/perf/ci-perf-compare.py
index 03463d1..c4019d5 100644
--- a/perf/ci-perf-compare.py
+++ b/perf/ci-perf-compare.py
@@ -24,6 +24,7 @@
   new_test = log_new_path + "/" + test
   old_test = log_old_path + "/" + test
 
-  cmd = f"python3 perf.py \'{old_test}\' \'{new_test}\' -o \'{output_path+test_name}.csv\'"
+  # Use sys.executable to ensure the same Python interpreter (venv) is used
+  cmd = f"{sys.executable} perf.py \'{old_test}\' \'{new_test}\' -o \'{output_path+test_name}.csv\'"
   #print(cmd)
   os.system(cmd)
diff --git a/perf/server.py b/perf/server.py
index 1e39f71..3f46db0 100644
--- a/perf/server.py
+++ b/perf/server.py
@@ -1,4 +1,5 @@
 import os
+import sys
 import subprocess
 import time
 import ast
@@ -29,7 +30,7 @@ def numactl(self, cmd, mem, start, end, num_cores):
 
     def remote_get_free_cores(self, threads):
         pwd = os.path.dirname(os.path.abspath(__file__))
-        cmd = ["python3", f"{pwd}/get_free_core.py", f"{threads}"]
+        cmd = [sys.executable, f"{pwd}/get_free_core.py", f"{threads}"]
         ssh_cmd_str = " ".join(self.remote_cmd + cmd)
         # print(ssh_cmd_str)
         proc = os.popen(ssh_cmd_str)
@@ -221,7 +222,7 @@ def stop(self):
         # os.killpg(os.getpgid(proc[1].pid), signal.SIGINT)
         # kill emu by ssh kill 'emu.pid'
         pwd = os.path.dirname(os.path.abspath(__file__))
-        os.popen(" ".join(self.remote_cmd) + f" python3 {pwd}/stop_emu.py")
+        os.popen(" ".join(self.remote_cmd) + f" {sys.executable} {pwd}/stop_emu.py")
 
     def is_epyc(self, num_cores):
         return num_cores > 16