From 37873eb0a9e945e52eec7966192729be9fdb09f2 Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Thu, 28 Feb 2002 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 2002-02-28

---
 pc/mem.h       |  2 +-
 port/proc.c    | 10 +++++-----
 port/sysproc.c |  2 +-
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/pc/mem.h b/pc/mem.h
index 6a6b88306a6896d2792729b51d6c1224391984ae..df270c9ae55075154c10b10b38843ab14c71b401 100644
--- a/pc/mem.h
+++ b/pc/mem.h
@@ -22,7 +22,7 @@
 /*
  * Time
  */
-#define	HZ		(82)			/* clock frequency */
+#define	HZ		(100)			/* clock frequency */
 #define	MS2HZ		(1000/HZ)		/* millisec per clock tick */
 #define	TK2SEC(t)	((t)/HZ)		/* ticks to seconds */
 #define	MS2TK(t)	(((t)*HZ+500)/1000)	/* milliseconds to closest tick */
diff --git a/port/proc.c b/port/proc.c
index dc219a4640ebde5a31941f5101d6e697fea24d43..e7a32fb2b5d39c5ff358178d972b81ee6ee777be 100644
--- a/port/proc.c
+++ b/port/proc.c
@@ -133,7 +133,7 @@ anyhigher(void)
 
 enum
 {
-	Squantum = (HZ+Nrq-1)/Nrq,
+	Squantum = 1,
 };
 
 void
@@ -150,13 +150,13 @@ ready(Proc *p)
 		/* history counts */
 		if(p->state == Running){
 			p->rt++;
-			pri = ((p->art + (p->rt<<1))>>2)/Squantum;
+			pri = (p->art + p->rt)/2;
 		} else {
-			p->art = (p->art + (p->rt<<1))>>2;
+			p->art = (p->art + p->rt + 2)/2;
+			pri = (p->art + p->rt)/2;
 			p->rt = 0;
-			pri = p->art/Squantum;
 		}
-		pri = p->basepri - pri;
+		pri = p->basepri - (pri/Squantum);
 		if(pri < 0)
 			pri = 0;
 	
diff --git a/port/sysproc.c b/port/sysproc.c
index 4f8ff12386ed5a61140328bf41fc1fae8345e799..e41c93bfc466d15d2f4c813ccc5b5f40c91edeb4 100644
--- a/port/sysproc.c
+++ b/port/sysproc.c
@@ -194,8 +194,8 @@ sysrfork(ulong *arg)
 	 *  (i.e. has bad properties) and has to be discarded.
 	 */
 	flushmmu();
-	p->priority = up->priority;
 	p->basepri = up->basepri;
+	p->priority = up->basepri;
 	p->fixedpri = up->fixedpri;
 	p->mp = up->mp;
 	wm = up->wired;