Displaying 20 results from an estimated 30000 matches similar to: "[PATCH] Set xen as default cpufreq, set userspace as default governor"
2008 Dec 10
0
[PATCH 1] Add cpufreq governors: performance, powersave, userspace
Add cpufreq governors: performance, powersave, userspace
This patch add 3 more governors beside original running ondemand cpufreq governor.
performance governor is with best performance, keeping cpu always running at highest freq;
powersave governor is with best power save effect, keeping cpu always running at lowest freq;
userspace governor provide user setting freq ability;
Signed-off-by: Liu,
2010 Jan 15
1
[PATCH] Change default cpufreq governor to ondemand
Back in c/s 18950 the default cpufreq governor was set to userspace (it
had previously been performance). However, since there is no supplied
userspace program or script that will change the frequency this is at
best a no-op. Worse, on some hardware with some BIOS revisions, this
actually sets the CPUs running at their lowest frequency rather than
their highest and there is a corresponding
2008 Jul 24
3
FW: cpufreq info propagation
it seems getting lost, and thus resend.
Thanks,
Kevin
-----Original Message-----
From: Tian, Kevin
Sent: 2008年7月24日 8:39
To: ''Jan Beulich''
Cc: Liu, Jinsong; Keir Fraser; xen-devel@lists.xensource.com; mark.langsdorf@amd.com
Subject: RE: [Xen-devel] cpufreq info propagation
>From: Jan Beulich
>Sent: 2008年7月23日 18:13
>>
>>startup info is viable. But how
2007 Oct 29
0
[PATCH][retry 2][cpufreq] Xen support for the ondemand governor in Linux dom0
Modify the cpufreq ondemand governor so that it can get idle and
total nsecs from the Xen hypervisor. Xen uses nsecs to measure
idle time, while Linux uses ticks. Other than accounting for
that difference, use the same algorithm to calculate idle time
as Linux does.
Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com>
diff -r 26962454b508 drivers/cpufreq/cpufreq_ondemand.c
---
2008 Oct 29
0
[PATCH] Cpufreq domain structure update from array to link list
Cpufreq domain structure update from array to link list
Current cpufreq domain is an array cpufreq_dom_map[NR_CPUS].
However, according to Jan Beulich''s suggestion, domain number may be sparse or bigger than NR_CPUS.
This patch update cpufreq domain structure from array to link list, adapt sparse or big domain number.
Signed-off-by: Liu, Jinsong <jinsong.liu@intel.com>
2007 Oct 23
2
[PATCH][cpufreq] Xen support for the ondemand governor [2/2] (linux)
Modify the cpufreq ondemand governor so that it can get idle and
total ticks from the Xen hypervisor. Linux and Xen have different
ideas of what an idle tick is, so the Xen values for both have to
be returned in the same platform hypercall. Otherwise, use
basically the same scheme as native Linux.
Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com>
iff -r 9bf1ddd0f6bf
2008 Dec 31
0
[PATCH 2] Cpufreq: prevent negative px resident time, add spinlock to avoid race
Cpufreq: prevent negative px resident time, add spinlock to avoid race
Due to NOW() value may drift between different cpus, we add protection to prevent negative px resident time.
Due to both cpufreq logic and xenpm may race accessing cpufreq_statistic_data, we add spinlock to avoid race.
Signed-off-by: Liu, Jinsong <jinsong.liu@intel.com>
_______________________________________________
2008 Jul 18
0
[PATCH 1/2] X86: fix cpufreq _psd HW_ALL coordination bug
X86: Fix cpufreq _psd HW_ALL coordination bug
Currently xen cpufreq has a bug when handleing _psd HW_ALL,
which will result in system broken when _psd HW_ALL.
This patch fix this bug by handling _psd HW_ALL in same way as
SW_ALL coordiantion, for the seek of safety.
Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
_______________________________________________
Xen-devel mailing list
2011 Oct 14
1
[PATCH] cpufreq: error path fixes
This fixes an actual bug (failure to exit from a function after an
allocation failure), an inconsistency (not removing the cpufreq_dom
list member upon failure), and a latent bug (not clearing the current
governor upon governor initialization failure when there was no old
one; latent because the only current code path leading to this
situation frees the policy upon failure and hence the governor
2014 Jul 16
1
centos 7: trouble setting the ondemand governor
Hi,
The default "stop" action for the cpupower service seems to be to set
the ondemand governor, but this fails. I can reproduce the issue
directly by running cpupower:
$ sudo cpupower frequency-set -g ondemand
Setting cpu: 0
Error setting new values. Common errors:
- Do you have proper administration rights? (super-user?)
- Is the governor you requested available and modprobed?
-
2007 Oct 23
6
[PATCH][cpufreq] Xen support for the ondemand governor [1/2] (hypervisor code)
Modify the cpufreq ondemand governor so that it can get idle and
total ticks from the Xen hypervisor. Linux and Xen have different
ideas of what an idle tick is, so the Xen values for both have to
be returned in the same platform hypercall.
Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com>
diff -r b4278beaf354 xen/arch/x86/platform_hypercall.c
--- a/xen/arch/x86/platform_hypercall.c
2008 Oct 29
4
[PATCH] cpufreq.c: shut up compiler about cpufreq_dom
Some versions of GCC are too stupid to figure out that cpufreq_dom is
only used if !!domexist and always set in that case, and complain that
it may be used uninitialised.
(In general it is IMO better to avoid these kind of flag
variables; I would prefer structures like
for (...) { cpufreq_dom = dom; if (...) goto cpufreq_dom_found; }
cpufreq_dom = 0;
cpufreq_dom_found:
but on
2007 Aug 30
0
[PATCH][Retry 1] 1/4: cpufreq/PowerNow! in Xen: Xen timer changes
Enable cpufreq support in Xen for AMD Operton processors by:
1) Allowing the PowerNow! driver in dom0 to write to the PowerNow!
MSRs.
2) Adding the cpufreq notifier chain to time-xen.c in dom0.
On a frequency change, a platform hypercall is performed to
scale the frequency multiplier in the hypervisor.
3) Adding a platform hypercall to the hypervisor the scale
the frequency multiplier and reset
2006 Dec 22
0
Understanding cpuspeed/cpufreq
[I sent this to the RHEL4 list - but maybe someone on this list knows more]
I have a number of dual CPU and dual CPU/dual core Opteron systems that
are used as compute servers. In an effort to reduce power consumption
and reduce heat output, I would like to make use of the PowerNow!
capabilities to clock back the CPUs when the machines are idle.
These machines are running a 2.6.9-42 RHEL4 kernel
2011 Oct 20
0
[PATCH 07/12] cpufreq: allocate CPU masks dynamically
struct cpufreq_policy, including a cpumask_t member, gets copied in
cpufreq_limit_change(), cpufreq_add_cpu(), set_cpufreq_gov(), and
set_cpufreq_para(). Make the member a cpumask_var_t, thus reducing the
amount of data needing copying (particularly with large NR_CPUS).
Signed-off-by: Jan Beulich <jbeulich@suse.com>
--- 2011-09-20.orig/xen/arch/x86/acpi/cpufreq/cpufreq.c 2011-10-12
2007 Aug 28
8
cpufreq affects rate in, at least, htb
Hi all :)
I''ve tested this and having a cpufreq that slows down the CPU
affects the rate of HTB. My ondemand cpufreq governor scales down the
CPU frequency about 40% and this is more or less the slowdown the rate
suffers, 40%.
Any known way of dealing with this without having to disable
cpufreq?
Thanks in advance :)
Ra?l N??ez de Arenas Coronado
--
Linux Registered
2012 Mar 06
4
Is: drivers/cpufreq/cpufreq-xen.c Was:Re: [PATCH 2 of 2] linux-xencommons: Load processor-passthru
.. snip..
>> Both of them (acpi-cpufreq.c and powernow-k8.c) have a symbol
>> dependency on drivers/acpi/processor.c
>
> But them being ''m'' or ''y'' shouldn''t matter in the end.
I thought you were saying it matters - as it should be done around the
same time as cpufreq drivers were loaded?
.. snip..
>> For a), this would mean some
2008 Oct 22
24
Problems with enabling hypervisor C and P-state control
Hi,
Is there any documentation on enabling hypervisor support for both C
and P-state control?
On xen-unstable and linux-2.6.18-xen.hg, if I enable cpuidle=1 on the
xen command line and then run xenpm, I will get output for C-states
(shown below) but it complains that "Xen cpufreq is not enabled!"
cpu id : 0
total C-states : 2
idle time(ms) : 73264
C0
2007 Aug 26
4
HTB doesn''t give me the promised rate: cpufreq?
Hi all :)
I''ve been using a tc setup for almost two years, but at some point
(probably when I switched to kernel 2.6.x, but I''m not sure) it has
started making something very weird.
For a certain class, the rate is 125000bit and the ceil is
270000bit, but the fastest rate I get is about 75-80000bit, instead of
the "promised" 125000, *with no other traffic in
2013 Jun 20
3
[PATCH V2 1/2] cpufreq, xenpm: fix cpufreq and xenpm mismatch
Currently cpufreq and xenpm are out of sync. Fix cpufreq reporting of
if turbo mode is enabled or not. Fix xenpm to not decode for tristate,
but a boolean.
Signed-off-by: Jacob Shin <jacob.shin@amd.com>
---
tools/misc/xenpm.c | 14 +++-----------
xen/drivers/cpufreq/utility.c | 2 +-
2 files changed, 4 insertions(+), 12 deletions(-)
diff --git a/tools/misc/xenpm.c