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Re: [Qemu-devel] [PATCH V4 9/9] migration: postcopy_blocktime documentat


From: Eric Blake
Subject: Re: [Qemu-devel] [PATCH V4 9/9] migration: postcopy_blocktime documentation
Date: Fri, 12 May 2017 15:06:18 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.1.0

On 05/12/2017 06:31 AM, Alexey Perevalov wrote:
> Signed-off-by: Alexey Perevalov <address@hidden>
> ---
>  docs/migration.txt | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/docs/migration.txt b/docs/migration.txt
> index 1b940a8..d0f5a6d 100644
> --- a/docs/migration.txt
> +++ b/docs/migration.txt
> @@ -402,6 +402,16 @@ will now cause the transition from precopy to postcopy.
>  It can be issued immediately after migration is started or any
>  time later on.  Issuing it after the end of a migration is harmless.
>  
> +Blocktime it's a postcopy live migration metric, intend to show

s/it's/is/
s/intend/intended/

> +when source vCPU was in state interruptable sleep due to pagefault.

s/when/how long the/

> +This value is calculated on destination side.
> +To enable postcopy blocktime calculation, enter following command on 
> destination
> +monitor:
> +
> +migrate_set_capability postcopy-blocktime on
> +
> +Postcopy blocktime could be retrieved by query-migrate qmp command.

s/could/can/

> +
>  Note: During the postcopy phase, the bandwidth limits set using
>  migrate_set_speed is ignored (to avoid delaying requested pages that
>  the destination is waiting for).
> 

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

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