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* RE: [2.6 PATCH] Missing default governors choices
@ 2004-08-26 16:40 Pallipadi, Venkatesh
  2004-08-26 19:23 ` GoatZilla
  0 siblings, 1 reply; 3+ messages in thread
From: Pallipadi, Venkatesh @ 2004-08-26 16:40 UTC (permalink / raw)
  To: Michal Rokos, cpufreq; +Cc: linux-kernel



Ondemand govrenor not being one of the default governors is intentional.

Ondemand governor is in-kernel cpu frequency governor, that will 
Be beneficial for CPUs that supports frequency change with low 
transition_latency. If transition_latency is high, the ondemand governor

initialization will fail (User level governor is suggested in this
case).
Hence it cannot be used as a default governor. 

Thanks,
Venki 

>-----Original Message-----
>From: cpufreq-bounces@www.linux.org.uk 
>[mailto:cpufreq-bounces@www.linux.org.uk] On Behalf Of Michal Rokos
>Sent: Thursday, August 26, 2004 12:07 AM
>To: cpufreq@www.linux.org.uk
>Cc: linux-kernel@vger.kernel.org
>Subject: [2.6 PATCH] Missing default governors choices
>
>Hello,
>
>aren't these 2 missing in "Default CPUFreq governor" menu?
>
>Thank you.
>
> Michal
>
>PS: CC to me (I'm off the lists)
>
># This is a BitKeeper generated diff -Nru style patch.
>#
># ChangeSet
>#   2004/08/26 08:57:24+02:00 michal@rokos.info 
>#   Add missing governors to "Default CPUFreq governor" menu.
># 
># drivers/cpufreq/Kconfig
>#   2004/08/26 08:57:13+02:00 michal@rokos.info +16 -0
>#   Add missing governors to "Default CPUFreq governor" menu.
># 
>diff -Nru a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
>--- a/drivers/cpufreq/Kconfig 2004-08-26 09:00:15 +02:00
>+++ b/drivers/cpufreq/Kconfig 2004-08-26 09:00:15 +02:00
>@@ -27,6 +27,14 @@
>    the frequency statically to the highest frequency supported by
>    the CPU.
> 
>+config CPU_FREQ_DEFAULT_GOV_POWERSAVE
>+ bool "powersave"
>+ select CPU_FREQ_GOV_POWERSAVE
>+ help
>+   Use the CPUFreq governor 'powersave' as default. This sets
>+   the frequency statically to the lowest frequency supported by
>+   the CPU.
>+
> config CPU_FREQ_DEFAULT_GOV_USERSPACE
>  bool "userspace"
>  select CPU_FREQ_GOV_USERSPACE
>@@ -35,6 +43,14 @@
>    you to set the CPU frequency manually or when an userspace 
>    programm shall be able to set the CPU dynamically without having
>    to enable the userspace governor manually.
>+
>+config CPU_FREQ_DEFAULT_GOV_ONDEMAND
>+ bool "ondemand"
>+ select CPU_FREQ_GOV_ONDEMAND
>+ help
>+   Use the CPUFreq governor 'ondemand' as default. This does
>+   a periodic polling and changes frequency based on the CPU
>+   utilization.
> 
> endchoice
> 
> 
>
>_______________________________________________
>Cpufreq mailing list
>Cpufreq@www.linux.org.uk
>http://www.linux.org.uk/mailman/listinfo/cpufreq
>

^ permalink raw reply	[flat|nested] 3+ messages in thread
* [2.6 PATCH] Missing default governors choices
@ 2004-08-26  7:07 Michal Rokos
  0 siblings, 0 replies; 3+ messages in thread
From: Michal Rokos @ 2004-08-26  7:07 UTC (permalink / raw)
  To: cpufreq; +Cc: linux-kernel

Hello,

aren't these 2 missing in "Default CPUFreq governor" menu?

Thank you.

 Michal

PS: CC to me (I'm off the lists)

# This is a BitKeeper generated diff -Nru style patch.
#
# ChangeSet
#   2004/08/26 08:57:24+02:00 michal@rokos.info 
#   Add missing governors to "Default CPUFreq governor" menu.
# 
# drivers/cpufreq/Kconfig
#   2004/08/26 08:57:13+02:00 michal@rokos.info +16 -0
#   Add missing governors to "Default CPUFreq governor" menu.
# 
diff -Nru a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
--- a/drivers/cpufreq/Kconfig 2004-08-26 09:00:15 +02:00
+++ b/drivers/cpufreq/Kconfig 2004-08-26 09:00:15 +02:00
@@ -27,6 +27,14 @@
    the frequency statically to the highest frequency supported by
    the CPU.
 
+config CPU_FREQ_DEFAULT_GOV_POWERSAVE
+ bool "powersave"
+ select CPU_FREQ_GOV_POWERSAVE
+ help
+   Use the CPUFreq governor 'powersave' as default. This sets
+   the frequency statically to the lowest frequency supported by
+   the CPU.
+
 config CPU_FREQ_DEFAULT_GOV_USERSPACE
  bool "userspace"
  select CPU_FREQ_GOV_USERSPACE
@@ -35,6 +43,14 @@
    you to set the CPU frequency manually or when an userspace 
    programm shall be able to set the CPU dynamically without having
    to enable the userspace governor manually.
+
+config CPU_FREQ_DEFAULT_GOV_ONDEMAND
+ bool "ondemand"
+ select CPU_FREQ_GOV_ONDEMAND
+ help
+   Use the CPUFreq governor 'ondemand' as default. This does
+   a periodic polling and changes frequency based on the CPU
+   utilization.
 
 endchoice

^ permalink raw reply	[flat|nested] 3+ messages in thread
end of thread, other threads:[~2004-08-26 19:23 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2004-08-26 16:40 [2.6 PATCH] Missing default governors choices Pallipadi, Venkatesh
2004-08-26 19:23 ` GoatZilla
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2004-08-26  7:07 Michal Rokos

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