From: Paolo Bonzini <pbonzini@redhat.com>
To: "Wu, Feng" <feng.wu@intel.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>
Cc: Xiao Guangrong <xiaoguangrong.eric@gmail.com>
Subject: Re: A question about HTL VM-Exit handling time
Date: Thu, 23 Oct 2014 14:23:30 +0200 [thread overview]
Message-ID: <5448F342.804@redhat.com> (raw)
In-Reply-To: <E959C4978C3B6342920538CF579893F00223761D@SHSMSX104.ccr.corp.intel.com>
> Thanks for your answer, Paolo.
> There is a general question for perf kvm. Do you know how the vmexit
> handling time is measured? Such as what is the start point, and the
> end point? If I got this information, I think I can better understand the
> value of the handling time. Thanks a lot!
It is measured from kvm:kvm_exit to kvm:kvm_entry. See
exit_event_begin, exit_event_get_key, exit_event_end in
tools/perf/builtin-kvm.c.
Paolo
next prev parent reply other threads:[~2014-10-23 12:23 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-16 8:15 A question about HTL VM-Exit handling time Wu, Feng
2014-10-21 18:39 ` Paolo Bonzini
2014-10-23 4:56 ` Wu, Feng
2014-10-23 12:23 ` Paolo Bonzini [this message]
2014-10-24 1:14 ` Wu, Feng
2014-10-27 23:52 ` Wanpeng Li
2014-10-28 10:16 ` Paolo Bonzini
2014-10-28 7:46 ` Christian Borntraeger
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