From: Paolo Bonzini <pbonzini@redhat.com>
To: "Denis V. Lunev" <den@openvz.org>
Cc: Igor Redko <redkoi@virtuozzo.com>,
jsnow@redhat.com, qemu-devel@nongnu.org, annam@virtuozzo.com
Subject: Re: [Qemu-devel] [PATCH 6/8] migration: implementation of hook_ram_sync
Date: Wed, 7 Oct 2015 11:44:53 +0200 [thread overview]
Message-ID: <5614E995.8010406@redhat.com> (raw)
In-Reply-To: <1444198846-5383-7-git-send-email-den@openvz.org>
On 07/10/2015 08:20, Denis V. Lunev wrote:
> + if (migrate_is_test()) {
> + /* since no data is transfered during estimation all
> + all measurements below will be incorrect.
> + as well no need for delays. */
> + continue;
> + }
By applying delays, you can also test migration using bandwidth
limitations and try to estimate whether it will converge or not.
Perhaps if you use writev_buffer to implement the test QEMUFile you do
not need this anymore.
Paolo
next prev parent reply other threads:[~2015-10-07 9:45 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-06 18:46 [Qemu-devel] Debugging Migration John Snow
2015-10-06 19:00 ` Dr. David Alan Gilbert
2015-10-06 22:40 ` Denis V. Lunev
2015-10-06 23:02 ` John Snow
2015-10-07 6:20 ` [Qemu-devel] [RFC 0/8] QEMUFile-way to gather VM's memory statistics Denis V. Lunev
2015-10-07 6:20 ` [Qemu-devel] [PATCH 1/8] migration: fix expected_downtime Denis V. Lunev
2015-10-07 6:20 ` [Qemu-devel] [PATCH 2/8] qemu-file: new hook in qemu-file Denis V. Lunev
2015-10-07 6:20 ` [Qemu-devel] [PATCH 3/8] migration: add new capability test-only Denis V. Lunev
2015-10-07 15:05 ` Eric Blake
2015-10-08 14:54 ` Denis V. Lunev
2015-10-09 15:19 ` Dr. David Alan Gilbert
2015-10-07 6:20 ` [Qemu-devel] [PATCH 4/8] migration: add function for reseting migration bitmap Denis V. Lunev
2015-10-07 6:20 ` [Qemu-devel] [PATCH 5/8] migration: add draft of new transport Denis V. Lunev
2015-10-07 6:20 ` [Qemu-devel] [PATCH 6/8] migration: implementation of hook_ram_sync Denis V. Lunev
2015-10-07 9:44 ` Paolo Bonzini
2015-10-08 16:51 ` Denis V. Lunev
2015-10-07 9:44 ` Paolo Bonzini [this message]
2015-10-08 16:39 ` Denis V. Lunev
2015-10-07 14:03 ` Dr. David Alan Gilbert
2015-10-07 6:20 ` [Qemu-devel] [PATCH 7/8] migration: new migration test mode Denis V. Lunev
2015-10-07 13:56 ` Dr. David Alan Gilbert
2015-10-07 15:08 ` Eric Blake
2015-10-08 17:01 ` Denis V. Lunev
2015-10-08 17:05 ` Dr. David Alan Gilbert
2015-10-08 17:05 ` Denis V. Lunev
2015-10-08 18:57 ` Dr. David Alan Gilbert
2015-10-07 6:20 ` [Qemu-devel] [PATCH 8/8] migration: add output of gathered statistics Denis V. Lunev
2015-10-07 14:19 ` [Qemu-devel] [RFC 0/8] QEMUFile-way to gather VM's memory statistics Dr. David Alan Gilbert
2015-10-07 6:38 ` [Qemu-devel] Debugging Migration Denis V. Lunev
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