From: Con Kolivas <kernel@kolivas.org>
To: linux kernel mailing list <linux-kernel@vger.kernel.org>
Cc: Andrew Morton <akpm@osdl.org>
Subject: [PATCH]O18.1int
Date: Sat, 23 Aug 2003 15:55:14 +1000 [thread overview]
Message-ID: <200308231555.24530.kernel@kolivas.org> (raw)
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Some high credit tasks were being missed due to their prolonged cpu burn at
startup flagging them as low credit tasks.
Low credit tasks can now recover to become high credit.
Con
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--- linux-2.6.0-test3-mm3-O18/kernel/sched.c 2003-08-23 15:28:47.000000000 +1000
+++ linux-2.6.0-test3-mm3/kernel/sched.c 2003-08-23 15:30:16.000000000 +1000
@@ -140,9 +140,6 @@
#define LOW_CREDIT(p) \
((p)->interactive_credit < -MAX_SLEEP_AVG)
-#define VARYING_CREDIT(p) \
- (!(HIGH_CREDIT(p) || LOW_CREDIT(p)))
-
#define TASK_PREEMPTS_CURR(p, rq) \
((p)->prio < (rq)->curr->prio)
@@ -434,7 +431,7 @@ static void recalc_task_prio(task_t *p,
if (p->sleep_avg > NS_MAX_SLEEP_AVG){
p->sleep_avg = NS_MAX_SLEEP_AVG;
- p->interactive_credit += VARYING_CREDIT(p);
+ p->interactive_credit += !(HIGH_CREDIT(p));
}
}
}
@@ -1548,7 +1545,8 @@ switch_tasks:
prev->sleep_avg -= run_time;
if ((long)prev->sleep_avg <= 0){
prev->sleep_avg = 0;
- prev->interactive_credit -= VARYING_CREDIT(prev);
+ prev->interactive_credit -=
+ !(HIGH_CREDIT(prev) || LOW_CREDIT(prev));
}
prev->timestamp = now;
next reply other threads:[~2003-08-23 5:49 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-23 5:55 Con Kolivas [this message]
2003-08-23 9:08 ` [PATCH]O18.1int Thomas Schlichter
2003-08-23 9:18 ` [PATCH]O18.1int Nick Piggin
2003-08-23 12:22 ` [PATCH]O18.1int Con Kolivas
2003-08-23 12:21 ` [PATCH]O18.1int Con Kolivas
2003-08-23 9:32 ` [PATCH]O18.1int Andrew Morton
2003-08-23 9:49 ` [PATCH]O18.1int Nick Piggin
2003-08-23 16:58 ` [PATCH]O18.1int Con Kolivas
2003-08-23 21:49 ` [PATCH]O18.1int Andrew Morton
2003-08-24 2:46 ` [PATCH]O18.1int Con Kolivas
2003-08-23 13:29 ` [PATCH]O18.1int Con Kolivas
2003-08-25 9:24 ` [PATCH]O18.1int Måns Rullgård
2003-08-25 9:42 ` [PATCH]O18.1int Alex Riesen
2003-08-25 10:16 ` [PATCH]O18.1int Con Kolivas
2003-08-25 10:21 ` [PATCH]O18.1int Alex Riesen
2003-08-25 21:02 ` [PATCH]O18.1int Alex Riesen
2003-08-25 22:48 ` [PATCH]O18.1int Con Kolivas
2003-08-25 23:00 ` [PATCH]O18.1int Alex Riesen
2003-08-26 22:03 ` [PATCH]O18.1int Alex Riesen
2003-08-25 10:34 ` [PATCH]O18.1int Måns Rullgård
2003-08-25 10:50 ` [PATCH]O18.1int Con Kolivas
2003-08-25 11:15 ` [PATCH]O18.1int Måns Rullgård
2003-08-25 11:37 ` [PATCH]O18.1int Con Kolivas
2003-08-25 11:58 ` [PATCH]O18.1int Måns Rullgård
2003-08-25 12:28 ` [PATCH]O18.1int Con Kolivas
2003-08-25 12:49 ` [PATCH]O18.1int Måns Rullgård
2003-08-25 13:32 ` [PATCH]O18.1int Con Kolivas
2003-08-25 10:17 ` [PATCH]O18.1int Måns Rullgård
2003-08-25 10:34 ` [PATCH]O18.1int Alex Riesen
2003-08-25 11:23 ` [PATCH]O18.1int Måns Rullgård
2003-08-25 10:48 ` [PATCH]O18.1int Con Kolivas
[not found] ` <3F49E482.7030902@cyberone.com.au>
[not found] ` <20030825102933.GA14552@Synopsys.COM>
2003-08-26 22:20 ` [PATCH]O18.1int Alex Riesen
2003-08-27 2:26 ` [PATCH]O18.1int Nick Piggin
2003-08-23 22:03 [PATCH]O18.1int Voluspa
2003-08-24 4:04 ` [PATCH]O18.1int Con Kolivas
2003-08-28 12:23 [PATCH]O18.1int Guillaume Chazarain
2003-08-28 13:43 [PATCH]O18.1int Guillaume Chazarain
2003-08-28 13:58 ` [PATCH]O18.1int Nick Piggin
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