From: Con Kolivas <kernel@kolivas.org>
To: linux kernel mailing list <linux-kernel@vger.kernel.org>
Cc: Andrew Morton <akpm@osdl.org>, Wade <neroz@ii.net>,
Eugene Teo <eugene.teo@eugeneteo.net>,
Wiktor Wodecki <wodecki@gmx.de>
Subject: [PATCH] O6.1int
Date: Thu, 17 Jul 2003 12:13:02 +1000 [thread overview]
Message-ID: <200307171213.02643.kernel@kolivas.org> (raw)
The bug in the O6int patch probably wasn't responsible for WIktor's problem
actually. It shouldn't manifest for a very long time. Anyway here is the fix
and a couple of minor cleanups.
--- linux-2.6.0-test1-mm1/kernel/sched.c 2003-07-17 11:24:54.000000000 +1000
+++ linux-2.6.0-testck1/kernel/sched.c 2003-07-17 11:59:01.000000000 +1000
@@ -78,7 +78,7 @@
#define STARVATION_LIMIT (10*HZ)
#define SLEEP_BUFFER (HZ/100)
#define NODE_THRESHOLD 125
-#define MAX_BONUS (40 * PRIO_BONUS_RATIO / 100)
+#define MAX_BONUS (MAX_USER_PRIO * PRIO_BONUS_RATIO / 100)
/*
* If a task is 'interactive' then we reinsert it in the active
@@ -390,8 +390,6 @@ static inline void activate_task(task_t
long sleep_time = jiffies - p->last_run - 1;
if (sleep_time > 0) {
- unsigned long runtime = jiffies - p->avg_start;
-
/*
* Tasks that sleep a long time are categorised as idle and
* will get just under interactive status with a small runtime
@@ -402,6 +400,11 @@ static inline void activate_task(task_t
p->sleep_avg = MIN_SLEEP_AVG * (MAX_BONUS - INTERACTIVE_DELTA - 2) /
MAX_BONUS;
} else {
+ unsigned long runtime = jiffies - p->avg_start;
+
+ if (runtime > MAX_SLEEP_AVG)
+ runtime = MAX_SLEEP_AVG;
+
/*
* This code gives a bonus to interactive tasks.
*
next reply other threads:[~2003-07-17 1:55 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-17 2:13 Con Kolivas [this message]
2003-07-17 2:39 ` Wade
2003-07-17 7:45 ` Felipe Alfaro Solana
2003-07-17 7:53 ` Con Kolivas
[not found] ` <20030717045435.GA630@lorien.emufarm.org>
[not found] ` <200307171712.20193.kernel@kolivas.org>
[not found] ` <200307171635.25730.kernel@kolivas.org>
2003-07-17 8:04 ` Danek Duvall
2003-07-17 8:21 ` Con Kolivas
2003-07-17 8:52 ` Eugene Teo
2003-07-17 9:06 ` Mike Galbraith
2003-07-18 7:07 ` Danek Duvall
2003-07-18 9:40 ` Rudo Thomas
2003-07-18 9:45 ` Zwane Mwaikambo
2003-07-18 14:43 ` Valdis.Kletnieks
2003-07-18 14:47 ` Danek Duvall
2003-07-18 14:52 ` Con Kolivas
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