Re: [Qemu-devel] [RFC PATCH 00/20] Kemari for KVM v0.1

2010-04-26 Thread Yoshiaki Tamura
Anthony Liguori wrote: On 04/22/2010 08:53 PM, Yoshiaki Tamura wrote: Anthony Liguori wrote: On 04/22/2010 08:16 AM, Yoshiaki Tamura wrote: 2010/4/22 Dor Laordl...@redhat.com: On 04/22/2010 01:35 PM, Yoshiaki Tamura wrote: Dor Laor wrote: On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote: Hi

Re: [Qemu-devel] [RFC PATCH 00/20] Kemari for KVM v0.1

2010-04-25 Thread Dor Laor
On 04/23/2010 10:36 AM, Fernando Luis Vázquez Cao wrote: On 04/23/2010 02:17 PM, Yoshiaki Tamura wrote: Dor Laor wrote: [...] Second, even if it wasn't the case, the tsc delta and kvmclock are synchronized as part of the VM state so there is no use of trapping it in the middle. I should

Re: [Qemu-devel] [RFC PATCH 00/20] Kemari for KVM v0.1

2010-04-23 Thread Fernando Luis Vázquez Cao
On 04/23/2010 02:17 PM, Yoshiaki Tamura wrote: Dor Laor wrote: [...] Second, even if it wasn't the case, the tsc delta and kvmclock are synchronized as part of the VM state so there is no use of trapping it in the middle. I should study the clock in KVM, but won't tsc get updated by the HW

Re: [Qemu-devel] [RFC PATCH 00/20] Kemari for KVM v0.1

2010-04-23 Thread Anthony Liguori
On 04/22/2010 08:53 PM, Yoshiaki Tamura wrote: Anthony Liguori wrote: On 04/22/2010 08:16 AM, Yoshiaki Tamura wrote: 2010/4/22 Dor Laordl...@redhat.com: On 04/22/2010 01:35 PM, Yoshiaki Tamura wrote: Dor Laor wrote: On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote: Hi all, We have been

Re: [Qemu-devel] [RFC PATCH 00/20] Kemari for KVM v0.1

2010-04-23 Thread Jamie Lokier
Yoshiaki Tamura wrote: Jamie Lokier wrote: Yoshiaki Tamura wrote: Dor Laor wrote: On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote: Event tapping is the core component of Kemari, and it decides on which event the primary should synchronize with the secondary. The basic assumption here is

Re: [Qemu-devel] [RFC PATCH 00/20] Kemari for KVM v0.1

2010-04-22 Thread Dor Laor
On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote: Hi all, We have been implementing the prototype of Kemari for KVM, and we're sending this message to share what we have now and TODO lists. Hopefully, we would like to get early feedback to keep us in the right direction. Although advanced

Re: [Qemu-devel] [RFC PATCH 00/20] Kemari for KVM v0.1

2010-04-22 Thread Yoshiaki Tamura
Dor Laor wrote: On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote: Hi all, We have been implementing the prototype of Kemari for KVM, and we're sending this message to share what we have now and TODO lists. Hopefully, we would like to get early feedback to keep us in the right direction. Although

Re: [Qemu-devel] [RFC PATCH 00/20] Kemari for KVM v0.1

2010-04-22 Thread Dor Laor
On 04/22/2010 01:35 PM, Yoshiaki Tamura wrote: Dor Laor wrote: On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote: Hi all, We have been implementing the prototype of Kemari for KVM, and we're sending this message to share what we have now and TODO lists. Hopefully, we would like to get early

Re: [Qemu-devel] [RFC PATCH 00/20] Kemari for KVM v0.1

2010-04-22 Thread Yoshiaki Tamura
2010/4/22 Takuya Yoshikawa yoshikawa.tak...@oss.ntt.co.jp: (2010/04/22 19:35), Yoshiaki Tamura wrote: A trivial one would we to : - do X online snapshots/sec I currently don't have good numbers that I can share right now. Snapshots/sec depends on what kind of workload is running, and if

Re: [Qemu-devel] [RFC PATCH 00/20] Kemari for KVM v0.1

2010-04-22 Thread Yoshiaki Tamura
2010/4/22 Dor Laor dl...@redhat.com: On 04/22/2010 01:35 PM, Yoshiaki Tamura wrote: Dor Laor wrote: On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote: Hi all, We have been implementing the prototype of Kemari for KVM, and we're sending this message to share what we have now and TODO lists.

Re: [Qemu-devel] [RFC PATCH 00/20] Kemari for KVM v0.1

2010-04-22 Thread Takuya Yoshikawa
(2010/04/22 19:35), Yoshiaki Tamura wrote: A trivial one would we to : - do X online snapshots/sec I currently don't have good numbers that I can share right now. Snapshots/sec depends on what kind of workload is running, and if the guest was almost idle, there will be no snapshots in 5sec.

Re: [Qemu-devel] [RFC PATCH 00/20] Kemari for KVM v0.1

2010-04-22 Thread Jamie Lokier
Yoshiaki Tamura wrote: Dor Laor wrote: On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote: Event tapping is the core component of Kemari, and it decides on which event the primary should synchronize with the secondary. The basic assumption here is that outgoing I/O operations are idempotent,

Re: [Qemu-devel] [RFC PATCH 00/20] Kemari for KVM v0.1

2010-04-22 Thread Anthony Liguori
On 04/22/2010 08:16 AM, Yoshiaki Tamura wrote: 2010/4/22 Dor Laordl...@redhat.com: On 04/22/2010 01:35 PM, Yoshiaki Tamura wrote: Dor Laor wrote: On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote: Hi all, We have been implementing the prototype of Kemari for KVM, and

Re: [Qemu-devel] [RFC PATCH 00/20] Kemari for KVM v0.1

2010-04-22 Thread Dor Laor
On 04/22/2010 04:16 PM, Yoshiaki Tamura wrote: 2010/4/22 Dor Laordl...@redhat.com: On 04/22/2010 01:35 PM, Yoshiaki Tamura wrote: Dor Laor wrote: On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote: Hi all, We have been implementing the prototype of Kemari for KVM, and we're sending this

Re: [Qemu-devel] [RFC PATCH 00/20] Kemari for KVM v0.1

2010-04-22 Thread Yoshiaki Tamura
Jamie Lokier wrote: Yoshiaki Tamura wrote: Dor Laor wrote: On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote: Event tapping is the core component of Kemari, and it decides on which event the primary should synchronize with the secondary. The basic assumption here is that outgoing I/O operations

Re: [Qemu-devel] [RFC PATCH 00/20] Kemari for KVM v0.1

2010-04-22 Thread Yoshiaki Tamura
Anthony Liguori wrote: On 04/22/2010 08:16 AM, Yoshiaki Tamura wrote: 2010/4/22 Dor Laordl...@redhat.com: On 04/22/2010 01:35 PM, Yoshiaki Tamura wrote: Dor Laor wrote: On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote: Hi all, We have been implementing the prototype of Kemari for KVM, and

Re: [Qemu-devel] [RFC PATCH 00/20] Kemari for KVM v0.1

2010-04-22 Thread Yoshiaki Tamura
Dor Laor wrote: On 04/22/2010 04:16 PM, Yoshiaki Tamura wrote: 2010/4/22 Dor Laordl...@redhat.com: On 04/22/2010 01:35 PM, Yoshiaki Tamura wrote: Dor Laor wrote: On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote: Hi all, We have been implementing the prototype of Kemari for KVM, and we're

[Qemu-devel] [RFC PATCH 00/20] Kemari for KVM v0.1

2010-04-21 Thread Yoshiaki Tamura
Hi all, We have been implementing the prototype of Kemari for KVM, and we're sending this message to share what we have now and TODO lists. Hopefully, we would like to get early feedback to keep us in the right direction. Although advanced approaches in the TODO lists are fascinating, we would