From: "Michael R. Hines" <mrhines@linux.vnet.ibm.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: aliguori@us.ibm.com, quintela@redhat.com, chegu_vinod@hp.com,
qemu-devel@nongnu.org, owasserm@redhat.com, abali@us.ibm.com,
mrhines@us.ibm.com, gokul@us.ibm.com, knoel@redhat.com
Subject: Re: [Qemu-devel] [PATCH v9 14/14] rdma: add pin-all accounting timestamp to QMP statistics
Date: Sun, 16 Jun 2013 00:06:32 -0400 [thread overview]
Message-ID: <51BD39C8.1060109@linux.vnet.ibm.com> (raw)
In-Reply-To: <51BCA54A.1020509@redhat.com>
On 06/15/2013 01:32 PM, Paolo Bonzini wrote:
> Il 15/06/2013 05:06, Eric Blake ha scritto:
>> On 06/14/2013 09:35 PM, mrhines@linux.vnet.ibm.com wrote:
>>> From: "Michael R. Hines" <mrhines@us.ibm.com>
>>>
>>> For very large virtual machines, pinning can take a long time.
>>> While this does not affect the migration's *actual* time itself,
>>> it is still important for the user to know what's going on and to
>>> know what component of the total time is actual taken up by
>>> pinning.
>>>
>>> For example, using a 14GB virtual machine, pinning can take as
>>> long as 5 seconds, for which the user would not otherwise know
>>> what was happening.
>>>
>>> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by:
>>> Michael R. Hines <mrhines@us.ibm.com> ---
>>> +++ b/qapi-schema.json @@ -586,7 +586,8 @@ '*xbzrle-cache':
>>> 'XBZRLECacheStats', '*total-time': 'int', '*expected-downtime':
>>> 'int', - '*downtime': 'int'} } + '*downtime':
>>> 'int', + '*pin-all-time' : 'int'} }
>> Missing documentation of the new field (compare how @downtime is
>> documented as a (since 1.3) field).
>>
> Can you just time the setup phase instead?
>
> Paolo
>
That's a great idea..... better to make it a more generic time.
I'll send out a V10 with everybody's suggestions.
- Michael
next prev parent reply other threads:[~2013-06-16 4:06 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-14 20:35 [Qemu-devel] [PATCH v9 00/14] rdma: migration support mrhines
2013-06-14 20:35 ` [Qemu-devel] [PATCH v9 01/14] rdma: add documentation mrhines
2013-06-14 20:35 ` [Qemu-devel] [PATCH v9 02/14] rdma: introduce qemu_update_position() mrhines
2013-06-14 20:35 ` [Qemu-devel] [PATCH v9 03/14] rdma: export yield_until_fd_readable() mrhines
2013-06-14 20:35 ` [Qemu-devel] [PATCH v9 04/14] rdma: export throughput w/ MigrationStats QMP mrhines
2013-06-15 9:09 ` Eric Blake
2013-06-16 4:04 ` Michael R. Hines
2013-06-14 20:35 ` [Qemu-devel] [PATCH v9 05/14] rdma: introduce qemu_file_mode_is_not_valid() mrhines
2013-06-14 20:35 ` [Qemu-devel] [PATCH v9 06/14] rdma: export qemu_fflush() mrhines
2013-06-14 20:35 ` [Qemu-devel] [PATCH v9 07/14] rdma: introduce ram_handle_compressed() mrhines
2013-06-14 20:35 ` [Qemu-devel] [PATCH v9 08/14] rdma: introduce qemu_ram_foreach_block() mrhines
2013-06-14 20:35 ` [Qemu-devel] [PATCH v9 09/14] rdma: new QEMUFileOps hooks mrhines
2013-06-14 20:35 ` [Qemu-devel] [PATCH v9 10/14] rdma: introduce capability x-rdma-pin-all mrhines
2013-06-15 9:05 ` Eric Blake
2013-06-16 4:04 ` Michael R. Hines
2013-06-14 20:35 ` [Qemu-devel] [PATCH v9 11/14] rdma: core logic mrhines
2013-06-14 20:35 ` [Qemu-devel] [PATCH v9 12/14] rdma: send pc.ram mrhines
2013-06-14 20:35 ` [Qemu-devel] [PATCH v9 13/14] rdma: fix mlock() freezes and accounting mrhines
2013-06-14 20:35 ` [Qemu-devel] [PATCH v9 14/14] rdma: add pin-all accounting timestamp to QMP statistics mrhines
2013-06-15 9:06 ` Eric Blake
2013-06-15 17:32 ` Paolo Bonzini
2013-06-16 4:06 ` Michael R. Hines [this message]
2013-06-16 4:05 ` Michael R. Hines
2013-06-16 18:37 ` Chegu Vinod
2013-06-18 20:17 ` Michael R. Hines
2013-06-15 22:51 ` [Qemu-devel] [PATCH v9 00/14] rdma: migration support Chegu Vinod
2013-06-16 4:07 ` Michael R. Hines
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