On Tue, Aug 9, 2011 at 4:13 AM, Ketting, Michael <michael.kett...@rubicon.eu > wrote:
> 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 re-ran the performance benchmarks using 1.6.17 and 1.7.0-beta3. Server is running 1.7.0-beta3 and running on Solaris x86 VM with 1 GB RAM Accessed server via https:// Server authentication via LDAP (Active Directory) Clients configured to use Neon. Client was Windows 7 laptop accessing server via VPN. Latency to server is about 120ms You can see the results in this spreadsheet: https://spreadsheets.google.com/spreadsheet/ccc?key=0AqWkwCpe4YoidHVpMlJhR0V3QmdWSThsb2c5d1FVV3c&hl=en_US I highlighted in green the areas where SVN 1.7 is significantly faster (most everywhere). There are a couple areas in red where 1.6 is significantly faster. This is on the test where there are about 4-5K icons in a single folder. Checkout/commit with 1.7 are slower but other areas are faster. FWIW, until 1.6.17 this was about 5x slower in 1.6. We backported a bugfix from 1.7 to 1.6.17 that apparently has even more impact in 1.6 than it did in 1.7. -- Thanks Mark Phippard http://markphip.blogspot.com/
