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From Kelven Yang <>
Subject Re: [MERGE] Merge VMSync improvement branch into master
Date Mon, 01 Jul 2013 22:00:43 GMT
I recently had an urgent family matter to take care and thanks for Alex to
help me out on this matter. I think at this moment, without a previous
100% rate of BVT past rate, it will be hard to tell a direct link between
a particular change with a BVT failure. It is a good idea to resolve this
measurement tool issue first.


On 6/27/13 4:50 PM, "Alex Huang" <> wrote:

>Chip has asked this before and we also stated specifically that we won't
>merge it in unless we see equivalent pass rate on the BVT as master.
>We're doing that right now.
>> -----Original Message-----
>> From: David Nalley []
>> Sent: Thursday, June 27, 2013 4:34 PM
>> To:
>> Subject: Re: [MERGE] Merge VMSync improvement branch into master
>> On Thu, Jun 27, 2013 at 5:51 PM, Hugo Trippaers <>
>> >
>> > I think Ilya offers is great, my current stance is also to see how we
>>can bring
>> this forward.
>> >
>> > I've had the opportunity to meet with several people at the Citrix
>>office in
>> Santa Clara, i'm actually working from their office at this moment. I
>>think it's
>> also the responsibility of someone who put in a -1 to work with the
>> committer to get the situation resolved. So i'll invest the time to
>>help with
>> the review as well.
>> >
>> > It would be great if Alex or Kelven could take the time to explain
>>how this
>> feature has been tested. That would give the community some insight as
>> well.
>> >
>> > My main technical problem with this merge is that stuff is moving all
>> the place without having even the slightest idea why. Now having
>> this with Alex in person i get the general idea of this merge, so can
>> try to review it.
>> >
>> > I think that John have nicely explained what we could do to prevent
>> situations like this in advance. I fully understand that big features
>>or rewrites
>> don't happen overnight and might show up near the end of the release
>> With the time based release cycle it's always a risk that some feature
>> not make it in on time. Getting more people involved and chunking the
>> commits into master will greatly speed up the reviewing process.
>> >
>> > I'll get back to this after spending some time on reviewing the
>>actual patch.
>> In fact i would like to ask more people to have a look at this patch
>>and reply
>> to this thread with comments or remarks.
>> >
>> > Cheers,
>> >
>> > Hugo
>> >
>> So the problem in my mind, is that we don't have a way of verifying that
>> master isn't broken, and won't be broken by any given merge. I look at
>> the minimal level of automated testing that I see today, and ~20% of
>> integration tests are failing[1]. The regression set of tests (which
>>isn't running
>> as often) is seeing 75% of tests failing[2]. Heaping on more change
>>when we
>> are demonstrably already failing in many places is not behaving
>> IMO.
>> The question I'd pose is this - running the various automated tests is
>> cheap - whats the output of that compared to the current test output on
>> master? Better or worse? If it hasn't been done, why not?
>> I desperately want these features, but not necessarily at the cost of
>> destabilizing what we have now in master - we can't continue accruing
>> technical debt.
>> --David
>> [1]
>> matrix/lastCompletedBuild/testReport/
>> [2] 
>> matrix/28/testReport/

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