Hi, I've taken the performance branch for a spin. Some of performance increases are awesome (svn log is ~4 times faster on my machine (tested with a file with 300 revisions)).
However, I also experienced a crash of svnserve, for both "svn log" and "svn blame" of a big file with >2000 revisions (so this is quite an extreme case). See both .log files in attachment. Something goes wrong in svn_fs_fs__id_deserialize, during processing of fs_history_prev. I also have crash dump files of the crashes. If you want those, let me know and I'll send them via private email. This was on Windows XP, a release build with VCE 2008. Cheers, -- Johan