Displaying 12 results from an estimated 12 matches for "xu04".
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2017 Nov 13
3
[PATCH RFC v3 4/6] Documentation: Add three sysctls for smart idle poll
From: Quan Xu <quan.xu0 at gmail.com>
To reduce the cost of poll, we introduce three sysctl to control the
poll time when running as a virtual machine with paravirt.
Signed-off-by: Yang Zhang <yang.zhang.wz at gmail.com>
Signed-off-by: Quan Xu <quan.xu0 at gmail.com>
---
Documentation/sysctl/kernel.txt | 35 +++++++++++++++++++++++++++++++++++
arch/x86/kernel/paravirt.c
2017 Nov 13
3
[PATCH RFC v3 4/6] Documentation: Add three sysctls for smart idle poll
From: Quan Xu <quan.xu0 at gmail.com>
To reduce the cost of poll, we introduce three sysctl to control the
poll time when running as a virtual machine with paravirt.
Signed-off-by: Yang Zhang <yang.zhang.wz at gmail.com>
Signed-off-by: Quan Xu <quan.xu0 at gmail.com>
---
Documentation/sysctl/kernel.txt | 35 +++++++++++++++++++++++++++++++++++
arch/x86/kernel/paravirt.c
2017 Nov 14
1
[PATCH RFC v3 4/6] Documentation: Add three sysctls for smart idle poll
On 2017/11/13 23:08, Ingo Molnar wrote:
> * Quan Xu <quan.xu04 at gmail.com> wrote:
>
>> From: Quan Xu <quan.xu0 at gmail.com>
>>
>> To reduce the cost of poll, we introduce three sysctl to control the
>> poll time when running as a virtual machine with paravirt.
>>
>> Signed-off-by: Yang Zhang <yang.zhang.wz...
2017 Nov 14
1
[PATCH RFC v3 4/6] Documentation: Add three sysctls for smart idle poll
On 2017/11/13 23:08, Ingo Molnar wrote:
> * Quan Xu <quan.xu04 at gmail.com> wrote:
>
>> From: Quan Xu <quan.xu0 at gmail.com>
>>
>> To reduce the cost of poll, we introduce three sysctl to control the
>> poll time when running as a virtual machine with paravirt.
>>
>> Signed-off-by: Yang Zhang <yang.zhang.wz...
2017 Nov 13
0
[PATCH RFC v3 4/6] Documentation: Add three sysctls for smart idle poll
* Quan Xu <quan.xu04 at gmail.com> wrote:
> From: Quan Xu <quan.xu0 at gmail.com>
>
> To reduce the cost of poll, we introduce three sysctl to control the
> poll time when running as a virtual machine with paravirt.
>
> Signed-off-by: Yang Zhang <yang.zhang.wz at gmail.com>
> Sign...
2017 Nov 14
0
[PATCH RFC v3 4/6] Documentation: Add three sysctls for smart idle poll
* Quan Xu <quan.xu0 at gmail.com> wrote:
>
>
> On 2017/11/13 23:08, Ingo Molnar wrote:
> > * Quan Xu <quan.xu04 at gmail.com> wrote:
> >
> > > From: Quan Xu <quan.xu0 at gmail.com>
> > >
> > > To reduce the cost of poll, we introduce three sysctl to control the
> > > poll time when running as a virtual machine with paravirt.
> > >
> > >...
2017 Nov 13
0
[PATCH RFC v3 6/6] KVM guest: introduce smart idle poll algorithm
From: Yang Zhang <yang.zhang.wz at gmail.com>
using smart idle poll to reduce the useless poll when system is idle.
Signed-off-by: Quan Xu <quan.xu0 at gmail.com>
Signed-off-by: Yang Zhang <yang.zhang.wz at gmail.com>
Cc: Paolo Bonzini <pbonzini at redhat.com>
Cc: Thomas Gleixner <tglx at linutronix.de>
Cc: Ingo Molnar <mingo at redhat.com>
Cc: "H. Peter
2017 Nov 13
0
[PATCH RFC v3 6/6] KVM guest: introduce smart idle poll algorithm
From: Yang Zhang <yang.zhang.wz at gmail.com>
using smart idle poll to reduce the useless poll when system is idle.
Signed-off-by: Quan Xu <quan.xu0 at gmail.com>
Signed-off-by: Yang Zhang <yang.zhang.wz at gmail.com>
Cc: Paolo Bonzini <pbonzini at redhat.com>
Cc: Thomas Gleixner <tglx at linutronix.de>
Cc: Ingo Molnar <mingo at redhat.com>
Cc: "H. Peter
2017 Nov 13
0
[PATCH RFC v3 5/6] tick: get duration of the last idle loop
From: Quan Xu <quan.xu0 at gmail.com>
the last idle loop is from tick_nohz_idle_enter to tick_nohz_idle_exit.
Signed-off-by: Yang Zhang <yang.zhang.wz at gmail.com>
Signed-off-by: Quan Xu <quan.xu0 at gmail.com>
Cc: Frederic Weisbecker <fweisbec at gmail.com>
Cc: Thomas Gleixner <tglx at linutronix.de>
Cc: Ingo Molnar <mingo at kernel.org>
Cc: linux-kernel at
2017 Nov 13
0
[PATCH RFC v3 5/6] tick: get duration of the last idle loop
From: Quan Xu <quan.xu0 at gmail.com>
the last idle loop is from tick_nohz_idle_enter to tick_nohz_idle_exit.
Signed-off-by: Yang Zhang <yang.zhang.wz at gmail.com>
Signed-off-by: Quan Xu <quan.xu0 at gmail.com>
Cc: Frederic Weisbecker <fweisbec at gmail.com>
Cc: Thomas Gleixner <tglx at linutronix.de>
Cc: Ingo Molnar <mingo at kernel.org>
Cc: linux-kernel at
2017 Nov 13
2
[PATCH RFC v3 0/6] x86/idle: add halt poll support
From: Quan Xu <quan.xu0 at gmail.com>
Some latency-intensive workload have seen obviously performance
drop when running inside VM. The main reason is that the overhead
is amplified when running inside VM. The most cost I have seen is
inside idle path.
This patch introduces a new mechanism to poll for a while before
entering idle state. If schedule is needed during poll, then we
don't
2017 Nov 13
2
[PATCH RFC v3 0/6] x86/idle: add halt poll support
From: Quan Xu <quan.xu0 at gmail.com>
Some latency-intensive workload have seen obviously performance
drop when running inside VM. The main reason is that the overhead
is amplified when running inside VM. The most cost I have seen is
inside idle path.
This patch introduces a new mechanism to poll for a while before
entering idle state. If schedule is needed during poll, then we
don't