Re: [RFC] Unify KVM kernel-space and user-space code into a single project

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From: Ingo Molnar
Date: Monday, March 22, 2010 - 12:54 pm

* Alexander Graf <agraf@suse.de> wrote:


Exactly. The more 'fragmented' a project is into sub-projects, without a 
single, unified, functional reference implementation in the center of it, the 
longer it takes to fix 'unsexy' problems like trivial usability bugs.

Furthermore, another negative effect is that many times features are 
implemented not in their technically best way, but in a way to keep them local 
to the project that originates them. This is done to keep deployment latencies 
and general contribution overhead down to a minimum. The moment you have to 
work with yet another project, the overhead adds up.

So developers rather go for the quicker (yet inferior) hack within the 
sub-project they have best access to.

Tell me this isnt happening in this space ;-)

Thanks,

	Ingo
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Messages in current thread:
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Frank Ch. Eigler, (Thu Mar 18, 5:33 am)
Re: [PATCH] Enhance perf to collect KVM guest os statistic ..., Arnaldo Carvalho de Melo, (Thu Mar 18, 6:03 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Frank Ch. Eigler, (Thu Mar 18, 6:24 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Daniel P. Berrange, (Thu Mar 18, 6:44 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Frank Ch. Eigler, (Thu Mar 18, 7:39 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Anthony Liguori, (Thu Mar 18, 11:10 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Anthony Liguori, (Thu Mar 18, 11:20 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Frederic Weisbecker, (Thu Mar 18, 11:20 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Frank Ch. Eigler, (Thu Mar 18, 12:50 pm)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Olivier Galibert, (Fri Mar 19, 2:52 am)
Re: [LKML] Re: [RFC] Unify KVM kernel-space and user-space ..., Konrad Rzeszutek Wilk, (Fri Mar 19, 6:56 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Andrea Arcangeli, (Fri Mar 19, 7:53 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Andrea Arcangeli, (Sat Mar 20, 7:59 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Olivier Galibert, (Sun Mar 21, 1:08 pm)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Daniel P. Berrange, (Mon Mar 22, 5:37 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Daniel P. Berrange, (Mon Mar 22, 5:54 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Daniel P. Berrange, (Mon Mar 22, 6:05 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Richard W.M. Jones, (Mon Mar 22, 6:23 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Richard W.M. Jones, (Mon Mar 22, 7:01 am)
Re: [PATCH] Enhance perf to collect KVM guest os statistic ..., Arnaldo Carvalho de Melo, (Mon Mar 22, 9:44 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Frank Ch. Eigler, (Mon Mar 22, 10:17 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Anthony Liguori, (Mon Mar 22, 11:28 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Anthony Liguori, (Mon Mar 22, 11:30 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Anthony Liguori, (Mon Mar 22, 11:35 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Anthony Liguori, (Mon Mar 22, 11:41 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Anthony Liguori, (Mon Mar 22, 12:15 pm)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Anthony Liguori, (Mon Mar 22, 12:18 pm)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Andrea Arcangeli, (Mon Mar 22, 12:28 pm)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Anthony Liguori, (Mon Mar 22, 12:29 pm)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Daniel P. Berrange, (Mon Mar 22, 12:31 pm)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Anthony Liguori, (Mon Mar 22, 12:33 pm)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Ingo Molnar, (Mon Mar 22, 12:54 pm)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Daniel P. Berrange, (Mon Mar 22, 1:58 pm)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Olivier Galibert, (Tue Mar 23, 2:46 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Bernd Petrovitsch, (Tue Mar 23, 3:48 am)
Re: [PATCH] Enhance perf to collect KVM guest os statistic ..., Arnaldo Carvalho de Melo, (Tue Mar 23, 6:15 am)
Re: [PATCH] Enhance perf to collect KVM guest os statistic ..., Arnaldo Carvalho de Melo, (Tue Mar 23, 7:10 am)
Re: [PATCH] Enhance perf to collect KVM guest os statistic ..., Arnaldo Carvalho de Melo, (Tue Mar 23, 7:29 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Javier Guerra Giraldez, (Tue Mar 23, 12:05 pm)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Daniel P. Berrange, (Wed Mar 24, 8:26 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Arnaldo Carvalho de Melo, (Wed Mar 24, 10:47 am)
Re: [RFC] Unify KVM kernel-space and user-space code into ..., Arnaldo Carvalho de Melo, (Wed Mar 24, 11:27 am)