From 0d2afceedd4c08ee0e215f7d1d5399dda6fd210e Mon Sep 17 00:00:00 2001
From: David Greenman <dg@FreeBSD.org>
Date: Sat, 6 Aug 1994 07:15:04 +0000
Subject: [PATCH] Process scheduling changes - adapted from FreeBSD 1.1.5.
 Basically, charge scheduling CPU of child process to the parent and have
 child inherit scheduling CPU from parent on fork. Makes a **big** difference
 in the feel of the system to interactive users.

Submitted by:	John Dyson
---
 sys/kern/kern_exit.c | 6 +++++-
 sys/kern/kern_fork.c | 8 +++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/sys/kern/kern_exit.c b/sys/kern/kern_exit.c
index 0a0ac8ff507..b93a6567729 100644
--- a/sys/kern/kern_exit.c
+++ b/sys/kern/kern_exit.c
@@ -36,7 +36,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)kern_exit.c	8.7 (Berkeley) 2/12/94
- * $Id$
+ * $Id: kern_exit.c,v 1.3 1994/08/02 07:41:59 davidg Exp $
  */
 
 #include <sys/param.h>
@@ -358,6 +358,10 @@ loop:
 			continue;
 		nfound++;
 		if (p->p_stat == SZOMB) {
+			/* charge childs scheduling cpu usage to parent */
+			if( curproc->p_pid != 1)
+				curproc->p_estcpu += p->p_estcpu;
+
 			retval[0] = p->p_pid;
 #ifdef COMPAT_43
 			if (uap->compat)
diff --git a/sys/kern/kern_fork.c b/sys/kern/kern_fork.c
index a415fc0c1c6..e0362e9c257 100644
--- a/sys/kern/kern_fork.c
+++ b/sys/kern/kern_fork.c
@@ -36,7 +36,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)kern_fork.c	8.6 (Berkeley) 4/8/94
- * $Id$
+ * $Id: kern_fork.c,v 1.3 1994/08/02 07:42:00 davidg Exp $
  */
 
 #include <sys/param.h>
@@ -261,11 +261,17 @@ again:
 	}
 #endif
 
+	/*
+	 * set priority of child to be that of parent
+	 */
+	p2->p_estcpu = p1->p_estcpu;
+
 	/*
 	 * This begins the section where we must prevent the parent
 	 * from being swapped.
 	 */
 	p1->p_flag |= P_NOSWAP;
+
 	/*
 	 * Set return values for child before vm_fork,
 	 * so they can be copied to child stack.