On Mon, Sep 28, 2015 at 12:16 PM, <stef...@apache.org> wrote: > Author: stefan2 > Date: Mon Sep 28 10:16:12 2015 > New Revision: 1705646 > > URL: http://svn.apache.org/viewvc?rev=1705646&view=rev > Log: > Tune reorg strategy during the FSFS format7 packs such that it favors > checkout-style tree walks now. > > Since r1703237, following the log history no longer requires frequent > access to directory data but mainly relies on noderev predecessor chain. > Therefore, it is no longer necessary to tightly pack directories in a > separate part of the pack file. With this patch, they are now placed > with the file contents and can be processed by a quasi-linear scan > instead of reading from two sections per pack. > > * subversion/libsvn_fs_fs/pack.c > (compare_dir_entries_format7): Adapt reporting strategy - process dirs > at the same time as files now. > (compare_is_dir): No longer needed. > (sort_reps): No longer distinguish between file and dir reps but only > paths and delta chains when determining reprentation order.
Hi Stefan, In this post-1.9.x-branch commit (and a couple of subsequent pack-related commits) you changed the pack layout for FSFS format7, to make it more efficient for exports, checkouts, ... I'm wondering, when 1.10 comes out, how will I be able to benefit from this improved pack layout? Supposing I've already dump/load-ed with 1.9 in FSFS7, and packed it. Does this require a format bump (and another dump/load)? Or do you plan on providing a way to "repack" (or simply unpack and pack) a packed repository? Currently there is no unpack or repack command ... -- Johan
