From: Mike Galbraith <efault@gmx.de>
To: Ingo Molnar <mingo@elte.hu>, Andrew Morton <akpm@osdl.org>
Cc: lkml <linux-kernel@vger.kernel.org>,
Peter Williams <pwil3058@bigpond.net.au>,
Nick Piggin <nickpiggin@yahoo.com.au>,
Con Kolivas <kernel@kolivas.org>
Subject: Re: [patch 2.6.16-mm2 9/9] sched throttle tree extract - export tunables
Date: Sat, 01 Apr 2006 11:31:55 +0200 [thread overview]
Message-ID: <1143883915.7617.77.camel@homer> (raw)
In-Reply-To: <1143883607.7617.71.camel@homer>
This patch is a convenience for people testing this patch series. It
exports throttling tunables to userland, and is utterly disposable.
Signed-off-by: Mike Galbraith <efault@gmx.de>
--- linux-2.6.16-mm2/include/linux/sysctl.h.org 2006-03-31 11:25:16.000000000 +0200
+++ linux-2.6.16-mm2/include/linux/sysctl.h 2006-03-31 14:08:28.000000000 +0200
@@ -148,6 +148,8 @@ enum
KERN_SPIN_RETRY=70, /* int: number of spinlock retries */
KERN_ACPI_VIDEO_FLAGS=71, /* int: flags for setting up video after ACPI sleep */
KERN_IA64_UNALIGNED=72, /* int: ia64 unaligned userland trap enable */
+ KERN_SCHED_THROTTLE1=73, /* int: throttling credit period 1 in secs */
+ KERN_SCHED_THROTTLE2=74, /* int: throttling credit period 2 in secs */
};
--- linux-2.6.16-mm2/kernel/sysctl.c.org 2006-03-31 11:24:50.000000000 +0200
+++ linux-2.6.16-mm2/kernel/sysctl.c 2006-03-31 14:08:28.000000000 +0200
@@ -73,6 +73,9 @@ extern int printk_ratelimit_burst;
extern int pid_max_min, pid_max_max;
extern int sysctl_drop_caches;
extern int percpu_pagelist_fraction;
+extern int credit_c1;
+extern int credit_c2;
+extern int credit_max;
#if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86)
int unknown_nmi_panic;
@@ -230,6 +233,11 @@ static ctl_table root_table[] = {
{ .ctl_name = 0 }
};
+/* Constants for minimum and maximum testing in vm_table and
+ * kern_table. We use these as one-element integer vectors. */
+static int zero;
+static int one_hundred = 100;
+
static ctl_table kern_table[] = {
{
.ctl_name = KERN_OSTYPE,
@@ -684,15 +692,31 @@ static ctl_table kern_table[] = {
.proc_handler = &proc_dointvec,
},
#endif
+ {
+ .ctl_name = KERN_SCHED_THROTTLE1,
+ .procname = "credit_c1",
+ .data = &credit_c1,
+ .maxlen = sizeof (int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &zero,
+ .extra2 = &credit_max,
+ },
+ {
+ .ctl_name = KERN_SCHED_THROTTLE2,
+ .procname = "credit_c2",
+ .data = &credit_c2,
+ .maxlen = sizeof (int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &zero,
+ .extra2 = &credit_max,
+ },
{ .ctl_name = 0 }
};
-/* Constants for minimum and maximum testing in vm_table.
- We use these as one-element integer vectors. */
-static int zero;
-static int one_hundred = 100;
-
-
static ctl_table vm_table[] = {
{
.ctl_name = VM_OVERCOMMIT_MEMORY,
--- linux-2.6.16-mm2/kernel/sched.c-8.slice_accounting 2006-03-24 09:40:33.000000000 +0100
+++ linux-2.6.16-mm2/kernel/sched.c 2006-03-24 09:51:06.000000000 +0100
@@ -220,11 +220,12 @@ static int task_interactive_idle(task_t
* credit that fits in 32 bits jiffies is 42949 seconds.
*/
-#define CREDIT_C1 10
-#define CREDIT_C2 14400
+int credit_c1 = 10;
+int credit_c2 = 14400;
+int credit_max = 42949;
-#define C1 (CREDIT_C1 * MAX_BONUS * HZ)
-#define C2 (CREDIT_C2 * MAX_BONUS * HZ + C1)
+#define C1 (credit_c1 * MAX_BONUS * HZ)
+#define C2 (credit_c2 * MAX_BONUS * HZ + C1)
#define C3 (MAX_BONUS * C2)
#define credit_exhausted(p, credit) \
next prev parent reply other threads:[~2006-04-01 9:31 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-01 8:28 [patch 2.6.16-mm2 0/9] sched throttle tree extract Mike Galbraith
2006-04-01 8:33 ` [patch 2.6.16-mm2 1/9] sched throttle tree extract - ignore invalid timestamps Mike Galbraith
2006-04-01 8:38 ` [patch 2.6.16-mm2 2/9] sched throttle tree extract - fix potential task uninterruptible bug Mike Galbraith
2006-04-01 8:44 ` [patch 2.6.16-mm2 3/9] sched throttle tree extract - remove IO priority barrier Mike Galbraith
2006-04-01 8:51 ` [patch 2.6.16-mm2 4/9] sched throttle tree extract - remove kthread barrier Mike Galbraith
2006-04-01 8:59 ` [patch 2.6.16-mm2 5/9] sched throttle tree extract - correct idle sleep logic Mike Galbraith
2006-04-01 9:12 ` [patch 2.6.16-mm2 6/9] sched throttle tree extract - move division to slow path Mike Galbraith
2006-04-01 9:23 ` [patch 2.6.16-mm2 7/9] sched throttle tree extract - implement throttling Mike Galbraith
2006-04-01 9:26 ` [patch 2.6.16-mm2 8/9] sched throttle tree extract - maximize timeslice accounting Mike Galbraith
2006-04-01 9:31 ` Mike Galbraith [this message]
2006-04-05 17:38 ` [patch 2.6.16-mm2 10/9] sched throttle tree extract - kill interactive task feedback loop Mike Galbraith
2006-04-05 23:15 ` Con Kolivas
2006-04-06 4:10 ` Mike Galbraith
2006-04-06 4:29 ` Con Kolivas
2006-04-01 16:53 ` [patch 2.6.16-mm2 5/9] sched throttle tree extract - correct idle sleep logic Lee Revell
2006-04-01 18:00 ` Mike Galbraith
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