[svn.haxx.se] · SVN Dev · SVN Users · SVN Org · TSVN Dev · TSVN Users · Subclipse Dev · Subclipse Users · this month's index

Re: svn commit: r1103765 - in /subversion/trunk/subversion: libsvn_wc/update_editor.c libsvn_wc/wc_db.c libsvn_wc/wc_db.h tests/libsvn_wc/db-test.c tests/libsvn_wc/op-depth-test.c

From: Greg Stein <gstein_at_gmail.com>
Date: Tue, 17 May 2011 04:11:48 -0400

On May 16, 2011 11:36 AM, "Hyrum K Wright" <hyrum_at_hyrumwright.org> wrote:
> On Mon, May 16, 2011 at 3:24 PM, <stefan2_at_apache.org> wrote:
> > Author: stefan2
> > Date: Mon May 16 15:24:59 2011
> > New Revision: 1103765
> >
> > URL: http://svn.apache.org/viewvc?rev=1103765&view=rev
> > Log:
> > Finding the w/c base folder using svn_wc__db_wcroot_parse_local_abspath
> > can be expensive if being called for many different paths (e.g. files
> > of their parents whose w/c root information already got cached).
> >
> > Please note that this may not reduce the total number of stat calls,
> > as later invocations won't provide an suitable wri_abspath. However,
> > sees that as the basis to future improvements.
> Let me see if I understand this (at a high level). Instead of needing
> to fetch the wcroot every time, we provide an already-fetched value to
> avoid having to stat the local_abspath.
> I'm not quite sure how I feel about this, personally. I understand
> the need to continue to improve performance, but the additional
> conditionals and baggage resulting in carrying around another value
> and optionally using it feel like it will just muddle the code.
> Rather than require callers to caching and provide this value, it
> seems that a more sensible option would be to implement the cache
> internally.
> I don't really know what to do about it right now, other than observe
> that one of the major goals in wc-ng was to make it easier to develop
> with. If we're just going to start making spaghetti anew, that effort
> is for not.


Tge wri_abspath concept is for when you don't have another indicator of the
wcroot you're talking about. We should have one or the other, but not both.

Received on 2011-05-17 10:12:21 CEST

This is an archived mail posted to the Subversion Dev mailing list.

This site is subject to the Apache Privacy Policy and the Apache Public Forum Archive Policy.