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Re: [Xen-devel] [PATCH 1/2]xl: Add "xl uptime" command

To: Vincent Hanquez <vincent.hanquez@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH 1/2]xl: Add "xl uptime" command
From: Yang Hongyang <yanghy@xxxxxxxxxxxxxx>
Date: Thu, 13 May 2010 18:42:25 +0800
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On 05/13/2010 06:18 PM, Vincent Hanquez wrote:
> On 13/05/10 11:10, Yang Hongyang wrote:
>>> I find this command basically useless, since on restore the "start_time"
>>> is not kept. do we actually need this ?
>> I think it's sometimes useful. I noticed that just the day before
>> yesterday,
>> somebody asked in the xen-api list about "uptime" command.
> it is useful if it works :)
> however this version of start_time means "when was this xen domain
> started" which is not the VM start time (i.e. "when was my vm booted").
> To be useful start_time need to preserved across migration and
> suspend/restore.
> xen-api does the right thing and returns the later.

So more work has to be done to get xl exactly right as xen-api.:)

And I noticed that if use xl create, start_time will not be set.
xm create will set the start_time properly, I wonder if it is xend
that set the start_time or is this a bug?

Yang Hongyang

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