From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Date: Fri, 23 Apr 2010 11:45:37 +0000 Subject: Re: [PATCH RFC v2 5/6] KVM: moving dirty bitmaps to user space Message-Id: <4BD18861.6020603@redhat.com> List-Id: References: <20100420200225.efca602f.yoshikawa.takuya@oss.ntt.co.jp> In-Reply-To: <20100420200225.efca602f.yoshikawa.takuya@oss.ntt.co.jp> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: kvm-ia64@vger.kernel.org On 04/23/2010 02:14 PM, Takuya Yoshikawa wrote: > >> Do you have performance numbers? I'm interested in both measurements of >> KVM_SWITCH_DIRTY_LOG under various conditions and macro benchmarks (for >> example, total guest throughput improvement under Kemari). >> > > Currently, I'm just checking the performance visually. > - on laptops, we can feel the speed directly: my favorite is installing > ubuntu or debian by alternate installers > > - live migration with heavy work load > > Now that I've got the overall design, I want to measure the > performance by numbers. > > > About performance under Kemari: we(oss.ntt.co.jp staffs: me and > Fernando) are > now concentrating on improving the basic live-migration > infrastructures and > they(lab.ntt.co.jp staffs) are working hard for building Kemari itself. > > - We are also interested in using live-migration with HA software > and this needs > light, stable live-migration: same as Kemari! > General live migration improvements are also interesting, I just the improvement would be more pronounced under Kemari. Looking forward to seeing the results. -- Do not meddle in the internals of kernels, for they are subtle and quick to panic.