From 7d52f00834ca67bf8232119a8eb8954515f29b24 Mon Sep 17 00:00:00 2001
From: SangBin Cho <rkooo567@gmail.com>
Date: Thu, 29 Jun 2023 08:57:02 -0700
Subject: [PATCH] Revert "[core] Clear CPU affinity for worker processes
 (#36816)"

This reverts commit 92cc3c38aa26bc9f7f7a637caba7898de41e0f56.
---
 src/ray/util/process.cc | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/src/ray/util/process.cc b/src/ray/util/process.cc
index 6bcb093afe00..a3e8d6bb6055 100644
--- a/src/ray/util/process.cc
+++ b/src/ray/util/process.cc
@@ -191,13 +191,6 @@ class ProcessFD {
         _exit(pid2 == -1 ? errno : 0);  // Parent of grandchild; must exit
       }
       // This is the spawned process. Any intermediate parent is now dead.
-
-      // Clear any CPU affinity that might have been inherited from the raylet.
-      // See https://github.com/ray-project/ray/issues/35984.
-      cpu_set_t mask;
-      CPU_ZERO(&mask);
-      sched_setaffinity(0, sizeof(mask), &mask);
-
       pid_t my_pid = getpid();
       if (write(pipefds[1], &my_pid, sizeof(my_pid)) == sizeof(my_pid)) {
         execvpe(