On Thu, 2013-03-07 at 14:11 +1100, Paul Mackerras wrote:
On Wed, Mar 06, 2013 at 09:52:16PM -0300, Marcelo Tosatti wrote:
On Wed, Mar 06, 2013 at 10:29:12AM -0600, Michael Wolf wrote:
I looked at doing that once but was told that I was changing the
interface in an unacceptable way
On Wed, 2013-03-06 at 23:30 -0300, Marcelo Tosatti wrote:
On Wed, Mar 06, 2013 at 10:27:13AM -0600, Michael Wolf wrote:
On Tue, 2013-03-05 at 22:41 -0300, Marcelo Tosatti wrote:
On Tue, Mar 05, 2013 at 02:22:08PM -0600, Michael Wolf wrote:
Sorry for the delay in the response. I did
On Wed, 2013-03-06 at 23:30 -0300, Marcelo Tosatti wrote:
On Wed, Mar 06, 2013 at 10:27:13AM -0600, Michael Wolf wrote:
On Tue, 2013-03-05 at 22:41 -0300, Marcelo Tosatti wrote:
On Tue, Mar 05, 2013 at 02:22:08PM -0600, Michael Wolf wrote:
Sorry for the delay in the response. I did
On Thu, 2013-03-07 at 18:25 -0300, Marcelo Tosatti wrote:
On Thu, Mar 07, 2013 at 03:15:09PM -0600, Michael Wolf wrote:
Makes sense?
Not sure what the concrete way to report stolen time relative to hard
capping is (probably easier inside the scheduler, where run_delay
On Tue, 2013-03-05 at 22:41 -0300, Marcelo Tosatti wrote:
On Tue, Mar 05, 2013 at 02:22:08PM -0600, Michael Wolf wrote:
Sorry for the delay in the response. I did not see the email
right away.
On Mon, 2013-02-18 at 22:11 -0300, Marcelo Tosatti wrote:
On Mon, Feb 18, 2013 at 05:43
On Wed, 2013-03-06 at 12:13 +0400, Glauber Costa wrote:
On 03/06/2013 05:41 AM, Marcelo Tosatti wrote:
On Tue, Mar 05, 2013 at 02:22:08PM -0600, Michael Wolf wrote:
Sorry for the delay in the response. I did not see the email
right away.
On Mon, 2013-02-18 at 22:11 -0300, Marcelo
On Wed, 2013-03-06 at 14:34 +0100, Frederic Weisbecker wrote:
2013/3/5 Michael Wolf m...@linux.vnet.ibm.com:
Sorry for the delay in the response. I did not see the email
right away.
On Mon, 2013-02-18 at 22:11 -0300, Marcelo Tosatti wrote:
On Mon, Feb 18, 2013 at 05:43:47PM +0100
Sorry for the delay in the response. I did not see your question.
On Mon, 2013-02-18 at 20:57 -0300, Marcelo Tosatti wrote:
On Tue, Feb 05, 2013 at 03:49:41PM -0600, Michael Wolf wrote:
Add a helper routine to scheduler/core.c to allow the kvm module
to retrieve the cpu hardlimit settings
Sorry for the delay in the response. I did not see the email
right away.
On Mon, 2013-02-18 at 22:11 -0300, Marcelo Tosatti wrote:
On Mon, Feb 18, 2013 at 05:43:47PM +0100, Frederic Weisbecker wrote:
2013/2/5 Michael Wolf m...@linux.vnet.ibm.com:
In the case of where you have a system
On 02/06/2013 03:14 PM, Rik van Riel wrote:
On 02/05/2013 04:49 PM, Michael Wolf wrote:
Expand the steal time msr to also contain the consigned time.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
arch/x86/include/asm/paravirt.h |4 ++--
arch/x86/include/asm
On 02/06/2013 03:18 PM, Rik van Riel wrote:
On 02/05/2013 04:49 PM, Michael Wolf wrote:
Change the paravirt calls that retrieve the steal-time information
from the host. Add to it getting the consigned value as well as
the steal time.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
diff
On 02/07/2013 02:46 AM, Glauber Costa wrote:
On 02/06/2013 10:07 PM, Michael Wolf wrote:
On 02/06/2013 08:36 AM, Glauber Costa wrote:
On 02/06/2013 01:49 AM, Michael Wolf wrote:
Add a helper routine to scheduler/core.c to allow the kvm module
to retrieve the cpu hardlimit settings
On 02/06/2013 08:36 AM, Glauber Costa wrote:
On 02/06/2013 01:49 AM, Michael Wolf wrote:
Add a helper routine to scheduler/core.c to allow the kvm module
to retrieve the cpu hardlimit settings. The values will be used
to set up a timer that is used to separate the consigned from the
steal time
Expand the steal time msr to also contain the consigned time.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
arch/x86/include/asm/paravirt.h |4 ++--
arch/x86/include/asm/paravirt_types.h |2 +-
arch/x86/kernel/kvm.c |7 ++-
kernel/sched/core.c
Change the paravirt calls that retrieve the steal-time information
from the host. Add to it getting the consigned value as well as
the steal time.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
arch/x86/include/asm/kvm_host.h |1 +
arch/x86/include/asm/paravirt.h |4
Add a helper routine to scheduler/core.c to allow the kvm module
to retrieve the cpu hardlimit settings. The values will be used
to set up a timer that is used to separate the consigned from the
steal time.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
arch/x86/include/asm/kvm_host.h
:
* Removed the steal time allowed percentage from the guest
* Moved the separation of consigned (expected steal) and steal time to the
host.
* No longer include a sysctl interface.
---
Michael Wolf (4):
Alter the amount of steal time reported by the guest.
Expand the steal time msr
.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
fs/proc/stat.c |9 +++--
include/linux/kernel_stat.h |1 +
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index e296572..cb7fe80 100644
--- a/fs/proc/stat.c
+++ b/fs
On 12/05/2012 06:46 AM, Glauber Costa wrote:
I am deeply sorry.
I was busy first time I read this, so I postponed answering and ended up
forgetting.
Sorry
include/linux/sched.h:
unsigned long long run_delay; /* time spent waiting on a runqueue */
So if you are out of the runqueue, you won't
On 11/28/2012 02:55 PM, Glauber Costa wrote:
On 11/28/2012 10:43 PM, Michael Wolf wrote:
On 11/27/2012 05:24 PM, Marcelo Tosatti wrote:
On Mon, Nov 26, 2012 at 02:36:24PM -0600, Michael Wolf wrote:
In the case of where you have a system that is running in a
capped or overcommitted environment
On 11/27/2012 03:03 PM, Konrad Rzeszutek Wilk wrote:
On Mon, Nov 26, 2012 at 02:36:45PM -0600, Michael Wolf wrote:
Add a consigned field. This field will hold the time lost due to capping or
overcommit.
The rest of the time will still show up in the steal-time field.
Signed-off-by: Michael
On 11/27/2012 05:24 PM, Marcelo Tosatti wrote:
On Mon, Nov 26, 2012 at 02:36:24PM -0600, Michael Wolf wrote:
In the case of where you have a system that is running in a
capped or overcommitted environment the user may see steal time
being reported in accounting tools such as top or vmstat
On 11/28/2012 02:45 AM, Glauber Costa wrote:
On 11/27/2012 07:10 PM, Michael Wolf wrote:
On 11/27/2012 02:48 AM, Glauber Costa wrote:
Hi,
On 11/27/2012 12:36 AM, Michael Wolf wrote:
In the case of where you have a system that is running in a
capped or overcommitted environment the user may
On 11/27/2012 02:48 AM, Glauber Costa wrote:
Hi,
On 11/27/2012 12:36 AM, Michael Wolf wrote:
In the case of where you have a system that is running in a
capped or overcommitted environment the user may see steal time
being reported in accounting tools such as top or vmstat. This can
cause
On 10/22/2012 10:33 AM, Rik van Riel wrote:
On 10/16/2012 10:23 PM, Michael Wolf wrote:
In the case of where you have a system that is running in a
capped or overcommitted environment the user may see steal time
being reported in accounting tools such as top or vmstat. This can
cause confusion
(expected steal) time. The host will separate
the consigned time from the steal time. The consignment limit passed to the
host will be the amount of steal time expected within a fixed period of
time. Any other steal time accruing during that period will show as the
traditional steal time.
---
Michael
. The amount
consigned_time will be passed in using an ioctl. The time will be expressed in
the number of nanoseconds to be lost in during the fixed period. The fixed
period
is currently 1/10th of a second.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
fs/proc/stat.c |9
Add a consigned field. This field will hold the time lost due to capping or
overcommit.
The rest of the time will still show up in the steal-time field.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
arch/x86/include/asm/paravirt.h |4 ++--
arch/x86/include/asm
Add the code to send the consigned time from the host to the guest.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
arch/x86/include/asm/kvm_host.h |1 +
arch/x86/include/asm/kvm_para.h |3 ++-
arch/x86/include/asm/paravirt.h |4 ++--
arch/x86/kernel/kvm.c |3
Add a timer to the host. This will define the period. During a period
the first n ticks will go into the consigned bucket. Any other ticks that
occur within the period will be placed in the stealtime bucket.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
arch/x86/include/asm
Add an ioctl to communicate the consign limit to the host.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
arch/x86/kvm/x86.c |6 ++
include/linux/kvm_host.h |2 ++
include/uapi/linux/kvm.h |2 ++
virt/kvm/kvm_main.c |7 +++
4 files changed, 17
Add the code to send the consigned time from the host to the guest.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
arch/x86/include/asm/kvm_host.h |1 +
arch/x86/include/asm/kvm_para.h |3 ++-
arch/x86/include/asm/paravirt.h |4 ++--
arch/x86/kernel/kvm.c |3
Add a timer to the host. This will define the period. During a period
the first n ticks will go into the consigned bucket. Any other ticks that
occur within the period will be placed in the stealtime bucket.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
arch/x86/include/asm
(expected steal) time. The host will separate
the consigned time from the steal time. The consignment limit passed to the
host will be the amount of steal time expected within a fixed period of
time. Any other steal time accruing during that period will show as the
traditional steal time.
---
Michael
. The amount
consigned_time will be passed in using an ioctl. The time will be expressed in
the number of nanoseconds to be lost in during the fixed period. The fixed
period
is currently 1/10th of a second.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
fs/proc/stat.c |9
Add a consigned field. This field will hold the time lost due to capping or
overcommit.
The rest of the time will still show up in the steal-time field.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
arch/x86/include/asm/paravirt.h |4 ++--
arch/x86/include/asm
On Wed, 2012-10-17 at 21:14 +0400, Glauber Costa wrote:
On 10/17/2012 06:23 AM, Michael Wolf wrote:
In the case of where you have a system that is running in a
capped or overcommitted environment the user may see steal time
being reported in accounting tools such as top or vmstat. This can
. The amount
consigned_time will be passed in using an ioctl. The time will be expressed in
the number of nanoseconds to be lost in during the fixed period. The fixed
period
is currently 1/10th of a second.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
fs/proc/stat.c |9
Add the code to send the consigned time from the host to the guest
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
arch/x86/include/asm/kvm_host.h |1 +
arch/x86/include/asm/kvm_para.h |3 ++-
arch/x86/include/asm/paravirt.h |4 ++--
arch/x86/kernel/kvm.c |3
Add an ioctl to communicate the consign limit to the host.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
arch/x86/kvm/x86.c |6 ++
include/linux/kvm.h |2 ++
include/linux/kvm_host.h |2 ++
virt/kvm/kvm_main.c |7 +++
4 files changed, 17
Add a timer to the host. This will define the period. During a period
the first n ticks will go into the consigned bucket. Any other ticks that
occur within the period will be placed in the stealtime bucket.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
arch/x86/include/asm
:
* Change native_clock to take params and not return a value
* Change update_rq_clock_task
Changes from V1:
* Removed the steal time allowed percentage from the guest
* Moved the separation of consigned (expected steal) and steal time to the
host.
* No longer include a sysctl interface.
---
Michael
Add a consigned field. This field will hold the time lost due to capping or
overcommit.
The rest of the time will still show up in the steal-time field.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
arch/x86/include/asm/paravirt.h |4 ++--
arch/x86/kernel/kvm.c |7
On Sat, 2012-08-25 at 19:36 -0400, Glauber Costa wrote:
On 08/24/2012 11:11 AM, Michael Wolf wrote:
On Fri, 2012-08-24 at 08:53 +0400, Glauber Costa wrote:
On 08/24/2012 03:14 AM, Michael Wolf wrote:
This is an RFC regarding the reporting of stealtime. In the case of
where you have
On Mon, 2012-08-27 at 11:50 -0700, Glauber Costa wrote:
On 08/27/2012 08:50 AM, Michael Wolf wrote:
On Sat, 2012-08-25 at 19:36 -0400, Glauber Costa wrote:
On 08/24/2012 11:11 AM, Michael Wolf wrote:
On Fri, 2012-08-24 at 08:53 +0400, Glauber Costa wrote:
On 08/24/2012 03:14 AM, Michael
On Mon, 2012-08-27 at 11:55 -0700, Avi Kivity wrote:
On 08/23/2012 04:14 PM, Michael Wolf wrote:
This is an RFC regarding the reporting of stealtime. In the case of
where you have a system that is running with partial processors such as
KVM the user may see steal time being reported
On Mon, 2012-08-27 at 13:31 -0700, Avi Kivity wrote:
On 08/27/2012 01:23 PM, Michael Wolf wrote:
How would a guest know what its entitlement is?
Currently the Admin/management tool setting up the guests will put it on
the qemu commandline. From this it is passed via an ioctl
On Mon, 2012-08-27 at 14:41 -0700, Glauber Costa wrote:
On 08/27/2012 02:27 PM, Michael Wolf wrote:
On Mon, 2012-08-27 at 13:31 -0700, Avi Kivity wrote:
On 08/27/2012 01:23 PM, Michael Wolf wrote:
How would a guest know what its entitlement is?
Currently the Admin/management tool
On Fri, 2012-08-24 at 08:53 +0400, Glauber Costa wrote:
On 08/24/2012 03:14 AM, Michael Wolf wrote:
This is an RFC regarding the reporting of stealtime. In the case of
where you have a system that is running with partial processors such as
KVM the user may see steal time being reported
to the
/proc/stat output and show the unaltered steal time. Since this additional
field could cause more confusion than it would clear up I have left it out
for now.
Michael Wolf (3):
Add a sysctl interface to control the cpu entitlement setting.
Add a hypercall to retrieve
This setting will later be used to compute an expected steal time.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
Documentation/sysctl/kernel.txt | 14 ++
fs/proc/stat.c |1 +
kernel/sysctl.c | 10 ++
3 files changed, 25
-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
fs/proc/stat.c | 70 ++-
include/linux/kernel_stat.h |2 +
2 files changed, 70 insertions(+), 2 deletions(-)
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index cf5..efbaa03 100644
If the hypercall is not implemented on the host a default value of
100 will be used. This value will be stored in
/proc/sys/kernel/cpu_entitlements.
Signed-off-by: Michael Wolf m...@linux.vnet.ibm.com
---
arch/x86/kvm/x86.c |8
fs/proc/stat.c |9
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