On Fri, Sep 20, 2013 at 11:27:15AM +0200, Josef Wolf wrote:
Yes. If you know that the receiver has commit X, and you want to know if
it has some blob Y, the only way to know for sure is to look at every
tree of every commit reachable from X, and see whether any of them
references Y.
On Tue, Sep 24, 2013 at 03:36:13AM -0400, Jeff King wrote:
On Fri, Sep 20, 2013 at 11:27:15AM +0200, Josef Wolf wrote:
Even without asking, we can assume with great probability that
origin/somebranch is available at origin.
Bear in mind that the transfer process does not know about
On Mon, Sep 16, 2013 at 05:55:36PM -0400, Jeff King wrote:
On Fri, Sep 13, 2013 at 12:09:35PM +0200, Josef Wolf wrote:
I'm not sure I understand correctly. I see that bitmaps can be used to
implement set operations. But how comes that walking the graph requires
a lot
of CPU?
On Fri, Sep 13, 2013 at 12:09:35PM +0200, Josef Wolf wrote:
I'm not sure I understand correctly. I see that bitmaps can be used to
implement set operations. But how comes that walking the graph requires a
lot
of CPU? Isn't it O(n)?
Yes and no. Your n there is the entirety of
On Thu, Sep 12, 2013 at 03:44:53PM -0400, Jeff King wrote:
On Thu, Sep 12, 2013 at 12:35:32PM +0200, Josef Wolf wrote:
I'm not sure I understand correctly. I see that bitmaps can be used to
implement set operations. But how comes that walking the graph requires a
lot
of CPU? Isn't it
On Thu, Sep 12, 2013 at 08:06:35PM +, Pyeron, Jason J CTR (US) wrote:
Yes, but it is those awfully slow connections (slower that the looping
issue) which happen to always drop while cloning from our office. And the
round trip should be mitigated by http-keep-alives.
[ ... ]
But, again if
-Original Message-
From: Josef Wolf
Sent: Friday, September 13, 2013 6:23
On Thu, Sep 12, 2013 at 08:06:35PM +, Pyeron, Jason J CTR
(US) wrote:
Yes, but it is those awfully slow connections (slower that
the looping
issue) which happen to always drop while cloning from
On Fri, Sep 13, 2013 at 3:06 AM, Pyeron, Jason J CTR (US)
jason.j.pyeron@mail.mil wrote:
But, again if the connection drops, we have already lost the delta advantage.
I would think the scenario would go like this:
git clone url://blah/blah
[fail]
cd blah
git clone --resume #uses normal
On Mi, Sep 11, 2013 at 10:14:54 -0700, Junio C Hamano wrote:
Josef Wolf j...@raven.inka.de writes:
On Di, Sep 10, 2013 at 10:51:02 -0700, Junio C Hamano wrote:
Consider this simple history with only a handful of commits (as
usual, time flows from left to right):
E
On Thu, Sep 12, 2013 at 09:42:41AM +0200, Josef Wolf wrote:
There are some work being done to optimize this further using
various techniques, but they are not ready yet.
And this still stands.
Do you have a pointer or something? I'd like to check out whether I can
contribute to
On Do, Sep 12, 2013 at 05:23:40 -0400, Jeff King wrote:
On Thu, Sep 12, 2013 at 09:42:41AM +0200, Josef Wolf wrote:
I think Junio is referring to the reachability bitmap work. We may know
that the other side has commit E (and therefore every object reachable
from it), but we do not walk the
-Original Message-
From: Jeff King
Sent: Thursday, September 12, 2013 5:24 AM
On Thu, Sep 12, 2013 at 09:42:41AM +0200, Josef Wolf wrote:
There are some work being done to optimize this further using
various techniques, but they are not ready yet.
And this still
On Thu, Sep 12, 2013 at 12:35:32PM +0200, Josef Wolf wrote:
I'm not sure I understand correctly. I see that bitmaps can be used to
implement set operations. But how comes that walking the graph requires a lot
of CPU? Isn't it O(n)?
Yes and no. Your n there is the entirety of history. Whereas
On Thu, Sep 12, 2013 at 12:45:44PM +, Pyeron, Jason J CTR (US) wrote:
If the rules of engagement are change a bit, the server side can be release
from most of its work (CPU/IO).
Client does the following, looping as needed:
Heads=server-heads();
KnownCommits=Local-AllCommits();
-Original Message-
From: Jeff King
Sent: Thursday, September 12, 2013 3:57 PM
On Thu, Sep 12, 2013 at 12:45:44PM +, Pyeron, Jason J CTR (US)
wrote:
If the rules of engagement are change a bit, the server side can be
release from most of its work (CPU/IO).
Client does
On Di, Sep 10, 2013 at 10:51:02 -0700, Junio C Hamano wrote:
Consider this simple history with only a handful of commits (as
usual, time flows from left to right):
E
/
A---B---C---D
where D is at the tip of the sending side, E is at the tip of the
Josef Wolf j...@raven.inka.de writes:
On Di, Sep 10, 2013 at 10:51:02 -0700, Junio C Hamano wrote:
Consider this simple history with only a handful of commits (as
usual, time flows from left to right):
E
/
A---B---C---D
where D is at the tip of the
Hello,
as we all know, files are identified by their SHA. Thus I had the impression
that when transfering files, git would know by the SHA whether a given file is
already available in the destination repository and the transfer would be of
no use. But this don't seem to be tha case. Lets see this
Josef Wolf j...@raven.inka.de writes:
as we all know, files are identified by their SHA. Thus I had the impression
that when transfering files, git would know by the SHA whether a given file is
already available in the destination repository and the transfer would be of
no use.
That is
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