Re: svn commit: r1139766 - /subversion/trunk/subversion/svn/main.c

stsp_at_apache.org writes:

> Author: stsp
> Date: Sun Jun 26 12:28:28 2011
> New Revision: 1139766
>
> URL: http://svn.apache.org/viewvc?rev=1139766&view=rev
> Log:
> * subversion/svn/main.c
> (svn_cl__cmd_table): In the help text for 'svn upgrade', explain that
> the upgrade preserves local modifications, and that an upgrade from
> 1.6 to 1.7 takes more time than a new checkout.
>
> Modified:
> subversion/trunk/subversion/svn/main.c
>
> Modified: subversion/trunk/subversion/svn/main.c
> URL: http://svn.apache.org/viewvc/subversion/trunk/subversion/svn/main.c?rev=1139766&r1=1139765&r2=1139766&view=diff
> ==============================================================================
> --- subversion/trunk/subversion/svn/main.c (original)
> +++ subversion/trunk/subversion/svn/main.c Sun Jun 26 12:28:28 2011
> @@ -1380,7 +1380,13 @@ const svn_opt_subcommand_desc2_t svn_cl_
>
> { "upgrade", svn_cl__upgrade, {0}, N_
> ("Upgrade the metadata storage format for a working copy.\n"
> - "usage: upgrade WCPATH...\n"),
> + "usage: upgrade WCPATH...\n"
> + "\n"
> + " Local modifications are preserved.\n"
> + "\n"
> + " Note: Upgrading a working copy from the format used in Subversion 1.6\n"
> + " to the format used in Subversion 1.7 takes much more time than checking\n"
> + " out a new working copy with the 1.7 client.\n"),

I disagree.

Upgrade requires more disk IO but requires significantly less network IO
and uses marginally less CPU. Checkout is likely to be faster when disk
IO is the limiting factor, but if network IO is the limiting factor then
checkout could be significantly slower.

-- 
Philip