RE: [RFC 3/3] arch/x86/kvm: SVM: Introduce pause loop exit logic in SVM

2018-03-15 Thread Moger, Babu
at.com; > k...@vger.kernel.org; linux-kernel@vger.kernel.org > Subject: Re: [RFC 3/3] arch/x86/kvm: SVM: Introduce pause loop exit logic in > SVM > > 2018-03-10 05:07+, Moger, Babu: > > Radim, > > Thanks for the comments. Taken care of most of the commen

RE: [RFC 3/3] arch/x86/kvm: SVM: Introduce pause loop exit logic in SVM

2018-03-15 Thread Moger, Babu
nel.org > Subject: Re: [RFC 3/3] arch/x86/kvm: SVM: Introduce pause loop exit logic in > SVM > > 2018-03-10 05:07+, Moger, Babu: > > Radim, > > Thanks for the comments. Taken care of most of the comments. > > I have few questions/comments. Please see inline. >

Re: [RFC 3/3] arch/x86/kvm: SVM: Introduce pause loop exit logic in SVM

2018-03-14 Thread Radim Krčmář
March 9, 2018 12:13 PM > > To: Moger, Babu <babu.mo...@amd.com> > > Cc: j...@8bytes.org; t...@linutronix.de; mi...@redhat.com; > > h...@zytor.com; x...@kernel.org; pbonz...@redhat.com; > > k...@vger.kernel.org; linux-kernel@vger.kernel.org > > Subject: Re:

Re: [RFC 3/3] arch/x86/kvm: SVM: Introduce pause loop exit logic in SVM

2018-03-14 Thread Radim Krčmář
> > To: Moger, Babu > > Cc: j...@8bytes.org; t...@linutronix.de; mi...@redhat.com; > > h...@zytor.com; x...@kernel.org; pbonz...@redhat.com; > > k...@vger.kernel.org; linux-kernel@vger.kernel.org > > Subject: Re: [RFC 3/3] arch/x86/kvm: SVM: Introduce pause loop exit

RE: [RFC 3/3] arch/x86/kvm: SVM: Introduce pause loop exit logic in SVM

2018-03-09 Thread Moger, Babu
> Cc: j...@8bytes.org; t...@linutronix.de; mi...@redhat.com; > h...@zytor.com; x...@kernel.org; pbonz...@redhat.com; > k...@vger.kernel.org; linux-kernel@vger.kernel.org > Subject: Re: [RFC 3/3] arch/x86/kvm: SVM: Introduce pause loop exit logic in > SVM > > 2018-03-02 11:17-0500,

RE: [RFC 3/3] arch/x86/kvm: SVM: Introduce pause loop exit logic in SVM

2018-03-09 Thread Moger, Babu
redhat.com; > h...@zytor.com; x...@kernel.org; pbonz...@redhat.com; > k...@vger.kernel.org; linux-kernel@vger.kernel.org > Subject: Re: [RFC 3/3] arch/x86/kvm: SVM: Introduce pause loop exit logic in > SVM > > 2018-03-02 11:17-0500, Babu Moger: > > Bring the PLE(pause loop exi

Re: [RFC 3/3] arch/x86/kvm: SVM: Introduce pause loop exit logic in SVM

2018-03-09 Thread Radim Krčmář
2018-03-02 11:17-0500, Babu Moger: > Bring the PLE(pause loop exit) logic to AMD svm driver. > We have noticed it help in situations where numerous pauses are generated > due to spinlock or other scenarios. Tested it with idle=poll and noticed > pause interceptions go down considerably. > >

Re: [RFC 3/3] arch/x86/kvm: SVM: Introduce pause loop exit logic in SVM

2018-03-09 Thread Radim Krčmář
2018-03-02 11:17-0500, Babu Moger: > Bring the PLE(pause loop exit) logic to AMD svm driver. > We have noticed it help in situations where numerous pauses are generated > due to spinlock or other scenarios. Tested it with idle=poll and noticed > pause interceptions go down considerably. > >