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From: "Alex Bennée" <alex.bennee@linaro.org>
To: "Dr. David Alan Gilbert \(git\)" <dgilbert@redhat.com>
Cc: thuth@redhat.com, qemu-devel@nongnu.org, peterx@redhat.com,
	quintela@redhat.com
Subject: Re: [PATCH 2/2] tests/migration/postcopy: trim migration bandwidth
Date: Mon, 23 Sep 2019 17:15:37 +0100	[thread overview]
Message-ID: <87tv93at06.fsf@linaro.org> (raw)
In-Reply-To: <20190923131022.15498-3-dgilbert@redhat.com>


Dr. David Alan Gilbert (git) <dgilbert@redhat.com> writes:

> From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
>
> On slow hosts with tcg we were sometimes finding that the migration
> would complete during precopy and never get into the postcopy test.
> Trim back the bandwidth a bit to make that much less likely.
>
> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

Acked-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>

> ---
>  tests/migration-test.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tests/migration-test.c b/tests/migration-test.c
> index 9c62ee5331..221a33d083 100644
> --- a/tests/migration-test.c
> +++ b/tests/migration-test.c
> @@ -753,7 +753,7 @@ static int migrate_postcopy_prepare(QTestState **from_ptr,
>       * quickly, but that it doesn't complete precopy even on a slow
>       * machine, so also set the downtime.
>       */
> -    migrate_set_parameter_int(from, "max-bandwidth", 100000000);
> +    migrate_set_parameter_int(from, "max-bandwidth", 30000000);
>      migrate_set_parameter_int(from, "downtime-limit", 1);
>
>      /* Wait for the first serial output from the source */


--
Alex Bennée


  parent reply	other threads:[~2019-09-23 16:18 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-23 13:10 [PATCH 0/2] migration test tweeks Dr. David Alan Gilbert (git)
2019-09-23 13:10 ` [PATCH 1/2] tests/migration: Fail on unexpected migration states Dr. David Alan Gilbert (git)
2019-09-23 14:12   ` Cleber Rosa
2019-09-23 16:20   ` Alex Bennée
2019-09-24  7:24   ` Juan Quintela
2019-09-23 13:10 ` [PATCH 2/2] tests/migration/postcopy: trim migration bandwidth Dr. David Alan Gilbert (git)
2019-09-23 14:14   ` Cleber Rosa
2019-09-23 16:15   ` Alex Bennée [this message]
2019-09-24  7:25   ` Juan Quintela
2019-09-23 13:24 ` [PATCH 0/2] migration test tweeks Peter Xu
2019-09-23 13:36   ` Dr. David Alan Gilbert
2019-09-25 10:35 ` Dr. David Alan Gilbert

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