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RE: Really lousy performance with svn info --depth infinity

From: Bert Huijben <bert_at_qqmail.nl>
Date: Thu, 1 Sep 2011 09:22:39 -0700

No, svn ls doesn't. It just obtains the URL and revision and then
queries the repository.

Bert Huijben (Cell phone) From: Philip Martin
Sent: donderdag 1 september 2011 18:00
To: Bert Huijben
Cc: michael_rytting_at_agilent.com; dev_at_subversion.apache.org
Subject: Re: Really lousy performance with svn info --depth infinity
"Bert Huijben" <bert_at_qqmail.nl> writes:

> These operations do very different things. The first reads your
> working copy to obtain a lot of details (unless you pass a revision;
> in that case it looks at the repository)
> The second asks the repository what files there are below the current
> directory in the repository (using the revision of the current
> directory).

Both commands access the working copy to read the info for every file
and directory.

> In my usage (repository hosted via http:// on the other side of the
> world) the second is much slower. But if you have a local repository
> the opposite might be true.
> I think this question belongs on users{_AT_}subversion.apache.org
> though, as it is about using Subversion and not on Subversion
> development.

I disagree. Since both commands pull all the info from the working copy
it is a problem if the single recursive call is slower than multiple
non-recursive calls. If this is reproducible then we want to know why,
however I cannot reproduce it on my machine.

> From: michael_rytting_at_agilent.com [mailto:michael_rytting_at_agilent.com]
> Sent: donderdag 1 september 2011 17:26 To: dev_at_subversion.apache.org
> Subject: Really lousy performance with svn info --depth infinity
> Quick question. I would expect the following 2 commands to perform
> equivalent functions.
> svn info -depth infinity
> svn ls -depth infinity | xargs svn info
> This issue is that the first command takes 1 minute to run while the
> second command takes 6 seconds to run. I am running 1.7.0-rc2.

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Received on 2011-09-01 18:23:09 CEST

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