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Old 06-27-2010, 11:15 AM
Enrico Weigelt
 
Default Portage tree from git

Hi folks,


is there yet a way to get the portage tree directly via git ?

IMHO this should be more traffic efficient than rsync in the
long run (especially when syncing often).


cu
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Enrico Weigelt == metux IT service - http://www.metux.de/
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Please visit the OpenSource QM Taskforce:
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Patches / Fixes for a lot dozens of packages in dozens of versions:
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Date: Sun, 27 Jun 2010 13:21:41 +0200
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27.06.2010 02:43, Liam Proven:

> 2010/6/27 Markus Sch=F6nhaber <ubuntu-users@list-post.mks-mail.de>:
>> 27.06.2010 02:18, Liam Proven:
>>
>>> For server virtualisation, not consumer desktop virtualisation, there
>>> is Xen and KVM, but both require hardware virtualisation support.
>>
>> No.
>> Xen does require hardware virtualization support to run guests in HVM
>> mode. But if one only wants to run paravirtualized guests, it's possible
>> to do so on a System/CPU without VT extensions.
> =

> True, one can use paravirtualisation without VT or AMD-V, but it's not
> much use

It may not be of much use for you but it's *very* useful for me. And
neither of us can judge of how much use it may be for others.

> and only certain FOSS OSs will run within it.

Yes, that's basically what paravirtualization is about.

> These days, for
> Xen to have functional parity with other hypervisors, you need VT/AMD-V.

Maybe. But that doesn't change the fact, that the statement
"Xen and KVM, but both require hardware virtualisation support"
is not true.

To explicitly state the difference (again):
KVM:
No hardware virtualization -> No KVM whatsoever.
XEN:
No hardware virtualization -> PV guests: yes. HV guests: no.

-- =

Regards
mks

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o/ubuntu-users
 
Old 06-27-2010, 03:07 PM
Peter Humphrey
 
Default Portage tree from git

On Sunday 27 June 2010 12:15:50 Enrico Weigelt wrote:

> is there yet a way to get the portage tree directly via git ?
>
> IMHO this should be more traffic efficient than rsync in the
> long run (especially when syncing often).

I sometimes wonder whether I should file a feature request on rsync, to
make it offer a mode in which only directories in which it does something
are listed on stdout. I shudder to think of the CPU cycles that are
wasted daily on scrolling all those directory names up the screen during
an emerge --sync. 21293 of them on this box today, altogether.

--
Rgds
Peter. Linux Counter 5290, 1994-04-23.
 
Old 06-28-2010, 04:23 PM
Florian Philipp
 
Default Portage tree from git

Am 27.06.2010 17:07, schrieb Peter Humphrey:
> On Sunday 27 June 2010 12:15:50 Enrico Weigelt wrote:
>
>> is there yet a way to get the portage tree directly via git ?
>>
>> IMHO this should be more traffic efficient than rsync in the
>> long run (especially when syncing often).
>
> I sometimes wonder whether I should file a feature request on rsync, to
> make it offer a mode in which only directories in which it does something
> are listed on stdout. I shudder to think of the CPU cycles that are
> wasted daily on scrolling all those directory names up the screen during
> an emerge --sync. 21293 of them on this box today, altogether.
>

It has been discussed on gentoo-dev some months ago. Some people were
afraid that git would use too many file stats on every operation to be
usable (performance-wise). I don't know the outcome of that discussion.
Part of it probably took place on IRC. Maybe someone more interested
than me can read it up and summarize?

Hope this helps,
Florian Philipp
 
Old 07-02-2010, 12:44 AM
Nicolas Sebrecht
 
Default Portage tree from git

On Mon, Jun 28, 2010 at 06:23:03PM +0200, Florian Philipp wrote:
>
> It has been discussed on gentoo-dev some months ago. Some people were
> afraid that git would use too many file stats on every operation to be
> usable (performance-wise). I don't know the outcome of that discussion.
> Part of it probably took place on IRC. Maybe someone more interested
> than me can read it up and summarize?

AFAIK, this work is still in progress.

--
Nicolas Sebrecht
 

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