From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
To: zhanghailiang <zhang.zhanghailiang@huawei.com>
Cc: lizhijian@cn.fujitsu.com, quintela@redhat.com,
yunhong.jiang@intel.com, eddie.dong@intel.com,
peter.huangpeng@huawei.com, qemu-devel@nongnu.org,
arei.gonglei@huawei.com, stefanha@redhat.com,
amit.shah@redhat.com, yanghy@cn.fujitsu.com
Subject: Re: [Qemu-devel] [PATCH COLO-Frame v9 00/32] COarse-grain LOck-stepping(COLO) Virtual Machines for Non-stop Service (FT)
Date: Wed, 21 Oct 2015 15:10:15 +0100 [thread overview]
Message-ID: <20151021141014.GA2478@work-vm> (raw)
In-Reply-To: <1441182199-8328-1-git-send-email-zhang.zhanghailiang@huawei.com>
Hi,
Not something I found on this set; but on your older set, where you have
the experimental 'live' ram transfer; we found a test that was slowed
down (5x) by the calls to 'colo_need_live_migrate_ram'; even if it decides
not to send any RAM in the live phase, the call to 'qemu_savevm_state_pending'
can be really expensive.
Just thought it worth mentioning.
Dave
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
next prev parent reply other threads:[~2015-10-21 14:10 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-02 8:22 [Qemu-devel] [PATCH COLO-Frame v9 00/32] COarse-grain LOck-stepping(COLO) Virtual Machines for Non-stop Service (FT) zhanghailiang
2015-09-02 8:22 ` [Qemu-devel] [PATCH COLO-Frame v9 01/32] configure: Add parameter for configure to enable/disable COLO support zhanghailiang
2015-10-02 15:10 ` Dr. David Alan Gilbert
2015-09-02 8:22 ` [Qemu-devel] [PATCH COLO-Frame v9 02/32] migration: Introduce capability 'colo' to migration zhanghailiang
2015-10-02 16:02 ` Eric Blake
2015-10-08 6:34 ` zhanghailiang
2015-09-02 8:22 ` [Qemu-devel] [PATCH COLO-Frame v9 03/32] COLO: migrate colo related info to slave zhanghailiang
2015-10-02 18:45 ` Dr. David Alan Gilbert
2015-10-08 6:48 ` zhanghailiang
2015-09-02 8:22 ` [Qemu-devel] [PATCH COLO-Frame v9 04/32] migration: Add state records for migration incoming zhanghailiang
2015-10-09 16:18 ` Dr. David Alan Gilbert
2015-10-10 7:07 ` zhanghailiang
2015-10-16 11:14 ` Dr. David Alan Gilbert
2015-09-02 8:22 ` [Qemu-devel] [PATCH COLO-Frame v9 05/32] migration: Integrate COLO checkpoint process into migration zhanghailiang
2015-10-09 16:53 ` Dr. David Alan Gilbert
2015-10-10 6:25 ` zhanghailiang
2015-09-02 8:22 ` [Qemu-devel] [PATCH COLO-Frame v9 06/32] migration: Integrate COLO checkpoint process into loadvm zhanghailiang
2015-10-19 9:17 ` Dr. David Alan Gilbert
2015-10-20 8:04 ` zhanghailiang
2015-09-02 8:22 ` [Qemu-devel] [PATCH COLO-Frame v9 07/32] migration: Rename the'file' member of MigrationState and MigrationIncomingState zhanghailiang
2015-09-02 8:22 ` [Qemu-devel] [PATCH COLO-Frame v9 08/32] COLO/migration: establish a new communication path from destination to source zhanghailiang
2015-10-19 9:54 ` Dr. David Alan Gilbert
2015-10-20 8:30 ` zhanghailiang
2015-10-20 19:32 ` Dr. David Alan Gilbert
2015-10-21 8:33 ` zhanghailiang
2015-09-02 8:22 ` [Qemu-devel] [PATCH COLO-Frame v9 09/32] COLO: Implement colo checkpoint protocol zhanghailiang
2015-10-21 12:17 ` Eric Blake
2015-10-22 7:13 ` zhanghailiang
2015-09-02 8:22 ` [Qemu-devel] [PATCH COLO-Frame v9 10/32] COLO: Add a new RunState RUN_STATE_COLO zhanghailiang
2015-10-21 12:18 ` Eric Blake
2015-10-22 6:58 ` zhanghailiang
2015-09-02 8:22 ` [Qemu-devel] [PATCH COLO-Frame v9 11/32] QEMUSizedBuffer: Introduce two help functions for qsb zhanghailiang
2015-09-02 8:22 ` [Qemu-devel] [PATCH COLO-Frame v9 12/32] COLO: Save PVM state to secondary side when do checkpoint zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 13/32] COLO: Load PVM's dirty pages into SVM's RAM cache temporarily zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 14/32] COLO: Load VMState into qsb before restore it zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 15/32] COLO: Flush PVM's cached RAM into SVM's memory zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 16/32] COLO: synchronize PVM's state to SVM periodically zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 17/32] COLO failover: Introduce a new command to trigger a failover zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 18/32] COLO failover: Introduce state to record failover process zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 19/32] COLO: Implement failover work for Primary VM zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 20/32] COLO: Implement failover work for Secondary VM zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 21/32] COLO: implement default failover treatment zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 22/32] qmp event: Add event notification for COLO error zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 23/32] COLO failover: Shutdown related socket fd when do failover zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 24/32] COLO failover: Don't do failover during loading VM's state zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 25/32] COLO: Control the checkpoint delay time by migrate-set-parameters command zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 26/32] COLO: Implement shutdown checkpoint zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 27/32] COLO: Update the global runstate after going into colo state zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 28/32] savevm: Split load vm state function qemu_loadvm_state zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 29/32] COLO: Separate the process of saving/loading ram and device state zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 30/32] COLO: Split qemu_savevm_state_begin out of checkpoint process zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 31/32] COLO: Add block replication into colo process zhanghailiang
2015-09-02 8:23 ` [Qemu-devel] [PATCH COLO-Frame v9 32/32] COLO: Add net packets treatment into COLO zhanghailiang
2015-09-02 9:03 ` [Qemu-devel] [PATCH COLO-Frame v9 00/32] COarse-grain LOck-stepping(COLO) Virtual Machines for Non-stop Service (FT) Yang Hongyang
2015-09-02 9:17 ` zhanghailiang
2015-09-09 3:36 ` zhanghailiang
2015-09-15 10:40 ` zhanghailiang
2015-10-21 14:10 ` Dr. David Alan Gilbert [this message]
2015-10-22 9:01 ` zhanghailiang
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