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From: Liang Chen <liangchen.linux@gmail.com>
To: pbonzini@redhat.com
Cc: rkrcmar@redhat.com, kvm@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Liang Chen <liangchen.linux@gmail.com>
Subject: [PATCH v3 0/2] KVM: count actual tlb flushes
Date: Thu, 18 Sep 2014 12:38:35 -0400	[thread overview]
Message-ID: <1411058317-23646-1-git-send-email-liangchen.linux@gmail.com> (raw)

* Instead of counting the number of coalesced flush requests,
  we count the actual tlb flushes.
* Flushes from kvm_flush_remote_tlbs will also be counted.
* Freeing the namespace a bit by replaces kvm_mmu_flush_tlb()
  with kvm_make_request() again.

---
v2 -> v3:

* split the patch into a series of two patches.
* rename the util function kvm_mmu_flush_tlb in x86.c to
  kvm_vcpu_flush_tlb

v1 -> v2:

* Instead of calling kvm_mmu_flush_tlb everywhere to make sure the
  stat is always incremented, postponing the counting to
  kvm_check_request.


Liang Chen (1):
  KVM: x86: directly use kvm_make_request again

Radim Krčmář (1):
  KVM: x86: count actual tlb flushes

 arch/x86/include/asm/kvm_host.h |  1 -
 arch/x86/kvm/mmu.c              | 17 +++++------------
 arch/x86/kvm/vmx.c              |  2 +-
 arch/x86/kvm/x86.c              | 13 ++++++++++---
 4 files changed, 16 insertions(+), 17 deletions(-)

-- 
1.9.1


             reply	other threads:[~2014-09-18 16:40 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-18 16:38 Liang Chen [this message]
2014-09-18 16:38 ` [PATCH v3 1/2] KVM: x86: count actual tlb flushes Liang Chen
2014-09-18 16:38 ` [PATCH v3 2/2] KVM: x86: directly use kvm_make_request again Liang Chen
2014-09-18 18:12   ` Radim Krčmář
2014-09-19  6:12   ` Xiao Guangrong
2014-09-19 12:25     ` Radim Krčmář
2014-09-19 13:35       ` Xiao Guangrong
2014-09-19 14:00         ` Paolo Bonzini
2014-09-19 14:26           ` Liang Chen
2014-09-19 21:10         ` Radim Krčmář
2014-09-19 14:08     ` Liang Chen

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