On 10.08.2011 22:01, Philip Martin wrote: > "Ketting, Michael" <michael.kett...@rubicon.eu> writes: > >> I've recently picked up the subversion 1.7 beta 2 build (included in >> the latest TortoiseSVN beta) and did a checkout of our solution >> (~10,000 files, ~2,000 folders, ~180MB). With Subversion 1.6.1, it >> takes roughly 5 minutes, with Subversion 1.7 beta 2, it takes about 10 >> minutes. >> >> Is this performance degradation inherent with the use of the >> centralized SVN information, and thus an intentional tradeoff for the >> blazing fast Commits/Updates? Naively, I'd hoped that the checkout >> speed would get closer to the export-speed with Subversion 1.7, since >> the Updates are faster, too. >> >> Interestingly, it looks like the export speed also degraded. With >> Subversion 1.6 it took about 90 seconds, with Subversion 1.7, it now >> takes 110 seconds. > I've put a copy of your trunk in a local repository. On my very > ordinary desktop machine running Linux I can checkout in about 30s with > 1.6 and about 50s with 1.7. That's consistent with what I have been > seeing for other datasets recently: checkout with 1.7 is slower than 1.6 > when using an ordinary disk. Switching to a RAM disk for the working > copy reduces the 1.7 time to 19s making it slightly faster than 1.6 > which takes 22s. > > Exporting takes about 13s with both 1.6 and 1.7 and appears to be > limited by the speed of the server.
Likely to be working copy performance, then. I'll bet sqlite commits dominate the client end of the checkout time in 1.7. -- Brane
