mbox series

[V7,RESEND,00/17] COLO: integrate colo frame with block replication and COLO proxy

Message ID 20180514165424.12884-1-zhangckid@gmail.com
Headers show
Series COLO: integrate colo frame with block replication and COLO proxy | expand

Message

Zhang Chen May 14, 2018, 4:54 p.m. UTC
The RESEND version just fix code style in patch 11/17.

Hi~ All~

COLO Frame, block replication and COLO proxy(colo-compare,filter-mirror,
filter-redirector,filter-rewriter) have been exist in qemu
for long time, it's time to integrate these three parts to make COLO really works.

In this series, we have some optimizations for COLO frame, including separating the
process of saving ram and device state, using an COLO_EXIT event to notify users that
VM exits COLO, for these parts, most of them have been reviewed long time ago in old version,
but since this series have just rebased on upstream which had merged a new series of migration,
parts of pathes in this series deserve review again.

We use notifier/callback method for COLO compare to notify COLO frame about
net packets inconsistent event, and add a handle_event method for NetFilterClass to
help COLO frame to notify filters and colo-compare about checkpoint/failover event,
it is flexible.

For the neweset version, please refer to:
https://github.com/zhangckid/qemu/tree/qemu-colo-18may1-rebase

Please review, thanks.

V7:
 - Addressed Markus's comments in 11/17.
 - Rebased on upstream.

V6:
 - Addressed Eric Blake's comments, use the enum to feedback in patch 11/17.
 - Fixed QAPI command separator problem in patch 11/17.


Zhang Chen (12):
  filter-rewriter: fix memory leak for connection in
    connection_track_table
  colo-compare: implement the process of checkpoint
  colo-compare: use notifier to notify packets comparing result
  COLO: integrate colo compare with colo frame
  COLO: Add block replication into colo process
  COLO: Remove colo_state migration struct
  COLO: Load dirty pages into SVM's RAM cache firstly
  ram/COLO: Record the dirty pages that SVM received
  COLO: Flush memory data from ram cache
  qapi: Add new command to query colo status
  filter: Add handle_event method for NetFilterClass
  filter-rewriter: handle checkpoint and failover event

zhanghailiang (5):
  qmp event: Add COLO_EXIT event to notify users while exited COLO
  savevm: split the process of different stages for loadvm/savevm
  COLO: flush host dirty ram from cache
  COLO: notify net filters about checkpoint/failover event
  COLO: quick failover process by kick COLO thread

 include/exec/ram_addr.h  |   1 +
 include/migration/colo.h |  11 +-
 include/net/filter.h     |   5 +
 migration/Makefile.objs  |   2 +-
 migration/colo-comm.c    |  76 --------------
 migration/colo.c         | 219 +++++++++++++++++++++++++++++++++++++--
 migration/migration.c    |  38 ++++++-
 migration/ram.c          | 183 +++++++++++++++++++++++++++++++-
 migration/ram.h          |   4 +
 migration/savevm.c       |  55 ++++++++--
 migration/savevm.h       |   5 +
 migration/trace-events   |   3 +
 net/colo-compare.c       | 108 +++++++++++++++++--
 net/colo-compare.h       |  24 +++++
 net/colo.h               |   4 +
 net/filter-rewriter.c    | 109 +++++++++++++++++--
 net/filter.c             |  17 +++
 net/net.c                |  28 +++++
 qapi/migration.json      |  70 +++++++++++++
 vl.c                     |   2 -
 20 files changed, 846 insertions(+), 118 deletions(-)
 delete mode 100644 migration/colo-comm.c
 create mode 100644 net/colo-compare.h

Comments

Dr. David Alan Gilbert May 16, 2018, 11:18 a.m. UTC | #1
Hi Jason,
  Patches 1,2,3,14,15 seem mostly networky to me; can you have a look?

Dave

* Zhang Chen (zhangckid@gmail.com) wrote:
> The RESEND version just fix code style in patch 11/17.
> 
> Hi~ All~
> 
> COLO Frame, block replication and COLO proxy(colo-compare,filter-mirror,
> filter-redirector,filter-rewriter) have been exist in qemu
> for long time, it's time to integrate these three parts to make COLO really works.
> 
> In this series, we have some optimizations for COLO frame, including separating the
> process of saving ram and device state, using an COLO_EXIT event to notify users that
> VM exits COLO, for these parts, most of them have been reviewed long time ago in old version,
> but since this series have just rebased on upstream which had merged a new series of migration,
> parts of pathes in this series deserve review again.
> 
> We use notifier/callback method for COLO compare to notify COLO frame about
> net packets inconsistent event, and add a handle_event method for NetFilterClass to
> help COLO frame to notify filters and colo-compare about checkpoint/failover event,
> it is flexible.
> 
> For the neweset version, please refer to:
> https://github.com/zhangckid/qemu/tree/qemu-colo-18may1-rebase
> 
> Please review, thanks.
> 
> V7:
>  - Addressed Markus's comments in 11/17.
>  - Rebased on upstream.
> 
> V6:
>  - Addressed Eric Blake's comments, use the enum to feedback in patch 11/17.
>  - Fixed QAPI command separator problem in patch 11/17.
> 
> 
> Zhang Chen (12):
>   filter-rewriter: fix memory leak for connection in
>     connection_track_table
>   colo-compare: implement the process of checkpoint
>   colo-compare: use notifier to notify packets comparing result
>   COLO: integrate colo compare with colo frame
>   COLO: Add block replication into colo process
>   COLO: Remove colo_state migration struct
>   COLO: Load dirty pages into SVM's RAM cache firstly
>   ram/COLO: Record the dirty pages that SVM received
>   COLO: Flush memory data from ram cache
>   qapi: Add new command to query colo status
>   filter: Add handle_event method for NetFilterClass
>   filter-rewriter: handle checkpoint and failover event
> 
> zhanghailiang (5):
>   qmp event: Add COLO_EXIT event to notify users while exited COLO
>   savevm: split the process of different stages for loadvm/savevm
>   COLO: flush host dirty ram from cache
>   COLO: notify net filters about checkpoint/failover event
>   COLO: quick failover process by kick COLO thread
> 
>  include/exec/ram_addr.h  |   1 +
>  include/migration/colo.h |  11 +-
>  include/net/filter.h     |   5 +
>  migration/Makefile.objs  |   2 +-
>  migration/colo-comm.c    |  76 --------------
>  migration/colo.c         | 219 +++++++++++++++++++++++++++++++++++++--
>  migration/migration.c    |  38 ++++++-
>  migration/ram.c          | 183 +++++++++++++++++++++++++++++++-
>  migration/ram.h          |   4 +
>  migration/savevm.c       |  55 ++++++++--
>  migration/savevm.h       |   5 +
>  migration/trace-events   |   3 +
>  net/colo-compare.c       | 108 +++++++++++++++++--
>  net/colo-compare.h       |  24 +++++
>  net/colo.h               |   4 +
>  net/filter-rewriter.c    | 109 +++++++++++++++++--
>  net/filter.c             |  17 +++
>  net/net.c                |  28 +++++
>  qapi/migration.json      |  70 +++++++++++++
>  vl.c                     |   2 -
>  20 files changed, 846 insertions(+), 118 deletions(-)
>  delete mode 100644 migration/colo-comm.c
>  create mode 100644 net/colo-compare.h
> 
> -- 
> 2.17.0
> 
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
Jason Wang May 16, 2018, 12:21 p.m. UTC | #2
On 2018年05月16日 19:18, Dr. David Alan Gilbert wrote:
> Hi Jason,
>    Patches 1,2,3,14,15 seem mostly networky to me; can you have a look?
>
> Dave

Sure, will review.

Thanks

>
> * Zhang Chen (zhangckid@gmail.com) wrote:
>> The RESEND version just fix code style in patch 11/17.
>>
>> Hi~ All~
>>
>> COLO Frame, block replication and COLO proxy(colo-compare,filter-mirror,
>> filter-redirector,filter-rewriter) have been exist in qemu
>> for long time, it's time to integrate these three parts to make COLO really works.
>>
>> In this series, we have some optimizations for COLO frame, including separating the
>> process of saving ram and device state, using an COLO_EXIT event to notify users that
>> VM exits COLO, for these parts, most of them have been reviewed long time ago in old version,
>> but since this series have just rebased on upstream which had merged a new series of migration,
>> parts of pathes in this series deserve review again.
>>
>> We use notifier/callback method for COLO compare to notify COLO frame about
>> net packets inconsistent event, and add a handle_event method for NetFilterClass to
>> help COLO frame to notify filters and colo-compare about checkpoint/failover event,
>> it is flexible.
>>
>> For the neweset version, please refer to:
>> https://github.com/zhangckid/qemu/tree/qemu-colo-18may1-rebase
>>
>> Please review, thanks.
>>
>> V7:
>>   - Addressed Markus's comments in 11/17.
>>   - Rebased on upstream.
>>
>> V6:
>>   - Addressed Eric Blake's comments, use the enum to feedback in patch 11/17.
>>   - Fixed QAPI command separator problem in patch 11/17.
>>
>>
>> Zhang Chen (12):
>>    filter-rewriter: fix memory leak for connection in
>>      connection_track_table
>>    colo-compare: implement the process of checkpoint
>>    colo-compare: use notifier to notify packets comparing result
>>    COLO: integrate colo compare with colo frame
>>    COLO: Add block replication into colo process
>>    COLO: Remove colo_state migration struct
>>    COLO: Load dirty pages into SVM's RAM cache firstly
>>    ram/COLO: Record the dirty pages that SVM received
>>    COLO: Flush memory data from ram cache
>>    qapi: Add new command to query colo status
>>    filter: Add handle_event method for NetFilterClass
>>    filter-rewriter: handle checkpoint and failover event
>>
>> zhanghailiang (5):
>>    qmp event: Add COLO_EXIT event to notify users while exited COLO
>>    savevm: split the process of different stages for loadvm/savevm
>>    COLO: flush host dirty ram from cache
>>    COLO: notify net filters about checkpoint/failover event
>>    COLO: quick failover process by kick COLO thread
>>
>>   include/exec/ram_addr.h  |   1 +
>>   include/migration/colo.h |  11 +-
>>   include/net/filter.h     |   5 +
>>   migration/Makefile.objs  |   2 +-
>>   migration/colo-comm.c    |  76 --------------
>>   migration/colo.c         | 219 +++++++++++++++++++++++++++++++++++++--
>>   migration/migration.c    |  38 ++++++-
>>   migration/ram.c          | 183 +++++++++++++++++++++++++++++++-
>>   migration/ram.h          |   4 +
>>   migration/savevm.c       |  55 ++++++++--
>>   migration/savevm.h       |   5 +
>>   migration/trace-events   |   3 +
>>   net/colo-compare.c       | 108 +++++++++++++++++--
>>   net/colo-compare.h       |  24 +++++
>>   net/colo.h               |   4 +
>>   net/filter-rewriter.c    | 109 +++++++++++++++++--
>>   net/filter.c             |  17 +++
>>   net/net.c                |  28 +++++
>>   qapi/migration.json      |  70 +++++++++++++
>>   vl.c                     |   2 -
>>   20 files changed, 846 insertions(+), 118 deletions(-)
>>   delete mode 100644 migration/colo-comm.c
>>   create mode 100644 net/colo-compare.h
>>
>> -- 
>> 2.17.0
>>
> --
> Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
>