On Wed, Feb 1, 2012 at 9:18 AM, Michael Grønager <grona...@ceptacle.com> > The libcoin/bitcoind client downloads the entire block chain 3.5 times faster than the bitcoin/bitcoind client. This is less than 90 minutes on a modern laptop!
I'm guessing that you benchmarked this against the version you forked from rather than the current reference client? If so— I suspect your speedup was almost entirely because you removed the secure allocator and as a result fixed the mlock performance bug [https://bitcointalk.org/index.php?topic=56491.0] as a side effect. On some systems the mlock issue makes a very big difference (on other systems not so much). In any case, I finally got libbitcoin built and I'm disappointed to report that in the same time it takes the reference client to fully sync, libbitcoin only made it to height 138k (of course, because the time is mostly spent late in the chain 138k is not very far along— I'm guessing it's going to take libbitcoin 3x-4x longer all said) I assume the reason it's actually slower is because it's CPU bound on ECDSA checks, which are skipped in bitcoin in blocks up to the highest hardcoded checkpoint. Without that difference I suspect libbitcoin would be about the same speed— maybe a little faster because of the other changes you mentioned (though, e.g. lock profiling shows hardly any contention during sync). I don't doubt your rpc performance is a lot better. There is a longstanding pull request for async rpc for the reference client that hasn't been merged. ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
