Johan Corveleyn <jcor...@gmail.com> writes: > That's good to know. Though that's a bit at odds with what Philip > found when he eliminated deltification on the client side (first by > using svnmucc (delta against empty file only); then by using curl-PUT > + autoversioning (no deltification at all)): > > https://svn.haxx.se/dev/archive-2017-07/0040.shtml > > Is it slower / more intensive to deltify on the client side?
The fact that curl PUT is faster is because the svn client first stores the delta to a temporary file, and only then sends it to the server (and there's also compression and checksumming involved). Curl streams the data to the server, and the server can immediately start processing the incoming data. If the svn client would be streaming data as well, it would make the server and the client process data simultaneously and also avoid the overhead associated with writing the temporary file to disk. Perhaps, that would make the difference much less visible. There is a sketch of the solution available in: https://svn.apache.org/repos/asf/subversion/branches/ra_serf-stream-commit but I wasn't able to finish the work on it. Regards, Evgeny Kotkov
