From: Lan Tianyu <tianyu.lan@intel.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Alexander Duyck <alexander.duyck@gmail.com>,
"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
Yang Zhang <yang.zhang.wz@gmail.com>,
qemu-devel@nongnu.org, "Tantilov,
Emil S" <emil.s.tantilov@intel.com>,
kvm@vger.kernel.org, Ard Biesheuvel <ard.biesheuvel@linaro.org>,
aik@ozlabs.ru, "Skidmore, Donald C" <donald.c.skidmore@intel.com>,
quintela@redhat.com, "Dong, Eddie" <eddie.dong@intel.com>,
"Jani, Nrupal" <nrupal.jani@intel.com>,
Alexander Graf <agraf@suse.de>, Blue Swirl <blauwirbel@gmail.com>,
cornelia.huck@de.ibm.com,
Alex Williamson <alex.williamson@redhat.com>,
kraxel@redhat.com, Anthony Liguori <anthony@codemonkey.ws>,
amit.shah@redhat.com, Paolo Bonzini <pbonzini@redhat.com>,
"Rustad, Mark D" <mark.d.rustad@intel.com>,
lcapitulino@redhat.com, Or Gerlitz <gerlitz.or@gmail.com>
Subject: Re: [Qemu-devel] live migration vs device assignment (motivation)
Date: Mon, 04 Jan 2016 10:15:20 +0800 [thread overview]
Message-ID: <5689D5B8.2090208@intel.com> (raw)
In-Reply-To: <20151229184426-mutt-send-email-mst@redhat.com>
On 2015年12月30日 00:46, Michael S. Tsirkin wrote:
> Interesting. So you sare saying merely ifdown/ifup is 100ms?
> This does not sound reasonable.
> Is there a chance you are e.g. getting IP from dhcp?
>
> If so that is wrong - clearly should reconfigure the old IP
> back without playing with dhcp. For testing, just set up
> a static IP.
MAC and IP are migrated with VM to target machine and not need to
reconfigure IP after migration.
From my test result, ixgbevf_down() consumes 35ms and ixgbevf_up()
consumes 55ms during migration.
--
Best regards
Tianyu Lan
WARNING: multiple messages have this Message-ID (diff)
From: Lan Tianyu <tianyu.lan@intel.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Yang Zhang <yang.zhang.wz@gmail.com>,
"Tantilov, Emil S" <emil.s.tantilov@intel.com>,
kvm@vger.kernel.org, aik@ozlabs.ru, qemu-devel@nongnu.org,
Alexander Duyck <alexander.duyck@gmail.com>,
lcapitulino@redhat.com, Blue Swirl <blauwirbel@gmail.com>,
kraxel@redhat.com, "Rustad, Mark D" <mark.d.rustad@intel.com>,
quintela@redhat.com, "Skidmore,
Donald C" <donald.c.skidmore@intel.com>,
Alexander Graf <agraf@suse.de>, Or Gerlitz <gerlitz.or@gmail.com>,
"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
Alex Williamson <alex.williamson@redhat.com>,
Anthony Liguori <anthony@codemonkey.ws>,
cornelia.huck@de.ibm.com,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
"Dong, Eddie" <eddie.dong@intel.com>,
"Jani, Nrupal" <nrupal.jani@intel.com>,
amit.shah@redhat.com, Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [Qemu-devel] live migration vs device assignment (motivation)
Date: Mon, 04 Jan 2016 10:15:20 +0800 [thread overview]
Message-ID: <5689D5B8.2090208@intel.com> (raw)
In-Reply-To: <20151229184426-mutt-send-email-mst@redhat.com>
On 2015年12月30日 00:46, Michael S. Tsirkin wrote:
> Interesting. So you sare saying merely ifdown/ifup is 100ms?
> This does not sound reasonable.
> Is there a chance you are e.g. getting IP from dhcp?
>
> If so that is wrong - clearly should reconfigure the old IP
> back without playing with dhcp. For testing, just set up
> a static IP.
MAC and IP are migrated with VM to target machine and not need to
reconfigure IP after migration.
>From my test result, ixgbevf_down() consumes 35ms and ixgbevf_up()
consumes 55ms during migration.
--
Best regards
Tianyu Lan
next prev parent reply other threads:[~2016-01-04 2:29 UTC|newest]
Thread overview: 142+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-24 13:35 [RFC PATCH V2 00/10] Qemu: Add live migration support for SRIOV NIC Lan Tianyu
2015-11-24 13:35 ` [Qemu-devel] " Lan Tianyu
2015-11-24 13:35 ` [RFC PATCH V2 01/10] Qemu/VFIO: Create head file pci.h to share data struct Lan Tianyu
2015-11-24 13:35 ` [Qemu-devel] " Lan Tianyu
2015-11-24 13:35 ` [RFC PATCH V2 02/10] Qemu/VFIO: Add new VFIO_GET_PCI_CAP_INFO ioctl cmd definition Lan Tianyu
2015-11-24 13:35 ` [Qemu-devel] " Lan Tianyu
2015-12-02 22:25 ` Alex Williamson
2015-12-02 22:25 ` [Qemu-devel] " Alex Williamson
2015-12-03 8:40 ` Lan, Tianyu
2015-12-03 8:40 ` [Qemu-devel] " Lan, Tianyu
2015-12-03 15:26 ` Alex Williamson
2015-12-03 15:26 ` [Qemu-devel] " Alex Williamson
2015-11-24 13:35 ` [RFC PATCH V2 03/10] Qemu/VFIO: Rework vfio_std_cap_max_size() function Lan Tianyu
2015-11-24 13:35 ` [Qemu-devel] " Lan Tianyu
2015-11-24 13:35 ` [RFC PATCH V2 04/10] Qemu/VFIO: Add vfio_find_free_cfg_reg() to find free PCI config space regs Lan Tianyu
2015-11-24 13:35 ` [Qemu-devel] " Lan Tianyu
2015-11-24 13:35 ` [RFC PATCH V2 05/10] Qemu/VFIO: Expose PCI config space read/write and msix functions Lan Tianyu
2015-11-24 13:35 ` [Qemu-devel] " Lan Tianyu
2015-11-24 13:35 ` [RFC PATCH V2 06/10] Qemu/PCI: Add macros for faked PCI migration capability Lan Tianyu
2015-11-24 13:35 ` [Qemu-devel] " Lan Tianyu
2015-12-02 22:25 ` Alex Williamson
2015-12-02 22:25 ` [Qemu-devel] " Alex Williamson
2015-12-03 8:57 ` Lan, Tianyu
2015-12-03 8:57 ` [Qemu-devel] " Lan, Tianyu
2015-11-24 13:35 ` [RFC PATCH V2 07/10] Qemu: Add post_load_state() to run after restoring CPU state Lan Tianyu
2015-11-24 13:35 ` [Qemu-devel] " Lan Tianyu
2015-11-24 13:35 ` [RFC PATCH V2 08/10] Qemu: Add save_before_stop callback to run just before stopping VCPU during migration Lan Tianyu
2015-11-24 13:35 ` [Qemu-devel] " Lan Tianyu
2015-11-24 13:35 ` [RFC PATCH V2 09/10] Qemu/VFIO: Add SRIOV VF migration support Lan Tianyu
2015-11-24 13:35 ` [Qemu-devel] " Lan Tianyu
2015-11-24 21:03 ` Michael S. Tsirkin
2015-11-24 21:03 ` [Qemu-devel] " Michael S. Tsirkin
2015-11-25 15:32 ` Lan, Tianyu
2015-11-25 15:32 ` [Qemu-devel] " Lan, Tianyu
2015-11-25 15:44 ` Michael S. Tsirkin
2015-11-25 15:44 ` [Qemu-devel] " Michael S. Tsirkin
2015-12-02 22:25 ` Alex Williamson
2015-12-02 22:25 ` [Qemu-devel] " Alex Williamson
2015-12-03 8:56 ` Lan, Tianyu
2015-12-03 8:56 ` [Qemu-devel] " Lan, Tianyu
2015-11-24 13:35 ` [RFC PATCH V2 10/10] Qemu/VFIO: Misc change for enable migration with VFIO Lan Tianyu
2015-11-24 13:35 ` [Qemu-devel] " Lan Tianyu
2015-11-30 8:01 ` [RFC PATCH V2 00/10] Qemu: Add live migration support for SRIOV NIC Michael S. Tsirkin
2015-11-30 8:01 ` [Qemu-devel] " Michael S. Tsirkin
2015-12-01 6:26 ` Lan, Tianyu
2015-12-01 6:26 ` [Qemu-devel] " Lan, Tianyu
2015-12-01 15:02 ` Michael S. Tsirkin
2015-12-01 15:02 ` [Qemu-devel] " Michael S. Tsirkin
2015-12-02 14:08 ` Lan, Tianyu
2015-12-02 14:08 ` [Qemu-devel] " Lan, Tianyu
2015-12-02 14:31 ` Michael S. Tsirkin
2015-12-02 14:31 ` [Qemu-devel] " Michael S. Tsirkin
2015-12-03 14:53 ` Lan, Tianyu
2015-12-03 14:53 ` [Qemu-devel] " Lan, Tianyu
2015-12-04 6:42 ` Lan, Tianyu
2015-12-04 6:42 ` [Qemu-devel] " Lan, Tianyu
2015-12-04 8:05 ` Michael S. Tsirkin
2015-12-04 8:05 ` [Qemu-devel] " Michael S. Tsirkin
2015-12-04 12:11 ` Lan, Tianyu
2015-12-04 12:11 ` [Qemu-devel] " Lan, Tianyu
2015-12-03 18:32 ` Alexander Duyck
2015-12-03 18:32 ` [Qemu-devel] " Alexander Duyck
2015-12-07 16:50 ` live migration vs device assignment (was Re: [RFC PATCH V2 00/10] Qemu: Add live migration support for SRIOV NIC) Michael S. Tsirkin
2015-12-07 16:50 ` [Qemu-devel] " Michael S. Tsirkin
2015-12-09 16:26 ` live migration vs device assignment (motivation) Lan, Tianyu
2015-12-09 16:26 ` [Qemu-devel] " Lan, Tianyu
2015-12-09 17:14 ` Alexander Duyck
2015-12-09 17:14 ` [Qemu-devel] " Alexander Duyck
2015-12-10 3:15 ` Lan, Tianyu
2015-12-10 3:15 ` [Qemu-devel] " Lan, Tianyu
2015-12-09 20:07 ` Michael S. Tsirkin
2015-12-09 20:07 ` [Qemu-devel] " Michael S. Tsirkin
2015-12-10 3:04 ` Lan, Tianyu
2015-12-10 3:04 ` [Qemu-devel] " Lan, Tianyu
2015-12-10 8:38 ` Michael S. Tsirkin
2015-12-10 8:38 ` [Qemu-devel] " Michael S. Tsirkin
2015-12-10 14:23 ` Lan, Tianyu
2015-12-10 14:23 ` [Qemu-devel] " Lan, Tianyu
2015-12-10 10:18 ` Dr. David Alan Gilbert
2015-12-10 10:18 ` Dr. David Alan Gilbert
2015-12-10 11:28 ` Yang Zhang
2015-12-10 11:28 ` Yang Zhang
2015-12-10 11:41 ` Dr. David Alan Gilbert
2015-12-10 11:41 ` Dr. David Alan Gilbert
2015-12-10 13:07 ` Yang Zhang
2015-12-10 13:07 ` Yang Zhang
2015-12-10 14:38 ` Lan, Tianyu
2015-12-10 14:38 ` [Qemu-devel] " Lan, Tianyu
2015-12-10 16:11 ` Michael S. Tsirkin
2015-12-10 16:11 ` Michael S. Tsirkin
2015-12-10 19:17 ` Alexander Duyck
2015-12-10 19:17 ` Alexander Duyck
2015-12-11 7:32 ` Lan, Tianyu
2015-12-11 7:32 ` Lan, Tianyu
2015-12-14 9:12 ` Michael S. Tsirkin
2015-12-14 9:12 ` Michael S. Tsirkin
2015-12-10 16:23 ` Dr. David Alan Gilbert
2015-12-10 16:23 ` Dr. David Alan Gilbert
2015-12-10 17:16 ` Alexander Duyck
2015-12-10 17:16 ` Alexander Duyck
2015-12-13 15:47 ` Lan, Tianyu
2015-12-13 15:47 ` Lan, Tianyu
2015-12-13 19:30 ` Alexander Duyck
2015-12-13 19:30 ` Alexander Duyck
2015-12-25 7:03 ` Lan Tianyu
2015-12-25 7:03 ` [Qemu-devel] " Lan Tianyu
2015-12-25 12:11 ` Michael S. Tsirkin
2015-12-25 12:11 ` Michael S. Tsirkin
2015-12-28 17:42 ` Lan, Tianyu
2015-12-28 17:42 ` Lan, Tianyu
2015-12-29 16:46 ` Michael S. Tsirkin
2015-12-29 16:46 ` Michael S. Tsirkin
2015-12-29 17:04 ` Alexander Duyck
2015-12-29 17:04 ` Alexander Duyck
2015-12-29 17:15 ` Michael S. Tsirkin
2015-12-29 17:15 ` [Qemu-devel] " Michael S. Tsirkin
2015-12-29 18:04 ` Alexander Duyck
2015-12-29 18:04 ` Alexander Duyck
2016-01-04 2:15 ` Lan Tianyu [this message]
2016-01-04 2:15 ` Lan Tianyu
2015-12-25 22:31 ` Alexander Duyck
2015-12-25 22:31 ` Alexander Duyck
2015-12-27 9:21 ` Michael S. Tsirkin
2015-12-27 9:21 ` [Qemu-devel] " Michael S. Tsirkin
2015-12-27 21:45 ` Alexander Duyck
2015-12-27 21:45 ` Alexander Duyck
2015-12-28 8:51 ` Michael S. Tsirkin
2015-12-28 8:51 ` Michael S. Tsirkin
2015-12-28 3:20 ` Dong, Eddie
2015-12-28 3:20 ` Dong, Eddie
2015-12-28 4:26 ` Alexander Duyck
2015-12-28 4:26 ` [Qemu-devel] " Alexander Duyck
2015-12-28 11:50 ` Michael S. Tsirkin
2015-12-28 11:50 ` Michael S. Tsirkin
2015-12-14 9:26 ` Michael S. Tsirkin
2015-12-14 9:26 ` Michael S. Tsirkin
2015-12-28 8:52 ` Pavel Fedin
2015-12-28 8:52 ` Pavel Fedin
2015-12-28 11:51 ` Michael S. Tsirkin
2015-12-28 11:51 ` Michael S. Tsirkin
2016-03-17 9:15 ` [Qemu-devel] [RFC PATCH V2 00/10] Qemu: Add live migration support for SRIOV NIC Wei Yang
2016-03-17 9:15 ` Wei Yang
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