Re: Use virtual cpu accounting if available for guest times. | KernelTrap

Re: Use virtual cpu accounting if available for guest times.

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From: Avi Kivity <avi@...>

To: Christian Borntraeger <borntraeger@...>

Cc: Laurent Vivier <Laurent.Vivier@...>, <linux-kernel@...>, kvm-devel <kvm-devel@...>

Subject: Re: Use virtual cpu accounting if available for guest times.

Date: Thursday, October 18, 2007 - 8:41 am

Christian Borntraeger wrote:
quoted text> ppc and s390 offer the possibility to track process times precisely
> by looking at cpu timer on every context switch, irq, softirq etc.
> We can use that infrastructure as well for guest time accounting.
> We need to account the used time before we change the state. 
> This patch adds a call to account_system_vtime to kvm_guest_enter
> and kvm_guest exit. If CONFIG_VIRT_CPU_ACCOUNTING is not set,
> account_system_vtime is defined in hardirq.h as an empty function,
> which means this patch does not change the behaviour on other
> platforms.
>
> I compile tested this patch on x86 and function tested the patch on
> s390.
>
> Avi, please apply.
>
>   

Done.  Thanks!

-- 
error compiling committee.c: too many arguments to function

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Messages in current thread:

[RESEND 2][PATCH 4/4] Modify KVM to update guest time accoun..., Laurent Vivier, (Mon Sep 10, 10:13 am)

Re: [RESEND 2][PATCH 4/4] Modify KVM to update guest time ac..., Ingo Molnar, (Mon Oct 15, 5:38 am)

Re: [RESEND 2][PATCH 4/4] Modify KVM to update guest time ac..., Avi Kivity, (Mon Oct 15, 5:47 am)

Re: [RESEND 2][PATCH 4/4] Modify KVM to update guest time ac..., Ingo Molnar, (Mon Oct 15, 5:51 am)

Re: [RESEND 2][PATCH 4/4] Modify KVM to update guest time ac..., Avi Kivity, (Mon Oct 15, 6:02 am)

Re: [RESEND 2][PATCH 4/4] Modify KVM to update guest time ac..., Laurent Vivier, (Mon Oct 15, 6:53 am)

Re: [RESEND 2][PATCH 4/4] Modify KVM to update guest , Christian Borntraeger, (Mon Oct 15, 7:19 am)

Re: [RESEND 2][PATCH 4/4] Modify KVM to update guest time ac..., Avi Kivity, (Mon Oct 15, 7:15 am)

Re: [RESEND 2][PATCH 4/4] Modify KVM to update guest time ac..., Laurent Vivier, (Mon Oct 15, 7:37 am)

Re: [RESEND 2][PATCH 4/4] Modify KVM to update guest time ac..., Avi Kivity, (Mon Oct 15, 8:07 am)

Re: [RESEND 2][PATCH 4/4] Modify KVM to update guest time ac..., Laurent Vivier, (Mon Oct 15, 8:29 am)

[PATCH] move kvm_guest_exit() after local_irq_enable(), Laurent Vivier, (Thu Oct 18, 9:19 am)

Re: [PATCH] move kvm_guest_exit() after local_irq_enable(), Ingo Molnar, (Mon Oct 22, 4:26 am)

Re: [PATCH] move kvm_guest_exit() after local_irq_enable(), Avi Kivity, (Mon Oct 22, 4:51 am)

Re: [PATCH] move kvm_guest_exit() after local_irq_enable(), Ingo Molnar, (Mon Oct 22, 4:57 am)

Re: [kvm-devel] [PATCH] move kvm_guest_exit() after local_ir..., Avi Kivity, (Mon Oct 22, 5:10 am)

Re: [kvm-devel] [PATCH] move kvm_guest_exit() after local_ir..., Avi Kivity, (Thu Oct 18, 9:32 am)

Re: [kvm-devel] [PATCH] move kvm_guest_exit() after local_ir..., Laurent Vivier, (Thu Oct 18, 9:49 am)

[PATCH] clear PF_VCPU in kvm_guest_exit(), Laurent Vivier, (Wed Oct 17, 9:08 am)

Use virtual cpu accounting if available for guest times., Christian Borntraeger, (Thu Oct 18, 8:39 am)

Re: [kvm-devel] Use virtual cpu accounting if available for ..., Hollis Blanchard, (Fri Oct 19, 12:57 pm)

Re: [kvm-devel] Use virtual cpu accounting if available for ..., Hollis Blanchard, (Fri Oct 19, 1:18 pm)

Re: Use virtual cpu accounting if available for guest times., Avi Kivity, (Thu Oct 18, 8:41 am)

Re: [PATCH] clear PF_VCPU in kvm_guest_exit(), Avi Kivity, (Wed Oct 17, 10:16 am)

Re: [PATCH] clear PF_VCPU in kvm_guest_exit(), Laurent Vivier, (Wed Oct 17, 11:09 am)

Re: [PATCH] clear PF_VCPU in kvm_guest_exit(), Christian Borntraeger, (Wed Oct 17, 9:18 am)

Re: [RESEND 2][PATCH 4/4] Modify KVM to update guest time ac..., Avi Kivity, (Mon Oct 15, 12:46 pm)

Re: [RESEND 2][PATCH 4/4] Modify KVM to update guest time ac..., Laurent Vivier, (Mon Oct 15, 3:45 pm)

Re: [RESEND 2][PATCH 4/4] Modify KVM to update guest , Christian Borntraeger, (Mon Oct 15, 7:33 am)

Re: [RESEND 2][PATCH 4/4] Modify KVM to update guest time ac..., Laurent Vivier, (Mon Oct 15, 7:38 am)

Re: [RESEND 2][PATCH 4/4] Modify KVM to update guest time ac..., Christian Borntraeger, (Mon Oct 15, 10:39 am)

Re: [RESEND 2][PATCH 4/4] Modify KVM to update guest time ac..., Laurent Vivier, (Mon Oct 15, 10:45 am)

Re: [RESEND 2][PATCH 4/4] Modify KVM to update guest time ac..., Ingo Molnar, (Mon Oct 15, 5:50 am)

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