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Re: [Qemu-devel] [PATCH] migration: Fix postcopy bw for recovery
From: |
Dr. David Alan Gilbert |
Subject: |
Re: [Qemu-devel] [PATCH] migration: Fix postcopy bw for recovery |
Date: |
Thu, 12 Sep 2019 11:21:40 +0100 |
User-agent: |
Mutt/1.12.1 (2019-06-15) |
* Peter Xu (address@hidden) wrote:
> We've got max-postcopy-bandwidth parameter but it's not applied
> correctly after a postcopy recovery so the recovered migration stream
> will still eat the whole net bandwidth. Fix that up.
>
> Reported-by: Xiaohui Li <address@hidden>
> Signed-off-by: Peter Xu <address@hidden>
Queued
> ---
> migration/migration.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/migration/migration.c b/migration/migration.c
> index 8b9f2fe30a..b307813aa3 100644
> --- a/migration/migration.c
> +++ b/migration/migration.c
> @@ -3327,7 +3327,8 @@ void migrate_fd_connect(MigrationState *s, Error
> *error_in)
>
> if (resume) {
> /* This is a resumed migration */
> - rate_limit = INT64_MAX;
> + rate_limit = s->parameters.max_postcopy_bandwidth /
> + XFER_LIMIT_RATIO;
> } else {
> /* This is a fresh new migration */
> rate_limit = s->parameters.max_bandwidth / XFER_LIMIT_RATIO;
> --
> 2.21.0
>
>
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK