Branko Čibej <br...@wandisco.com> writes: > Interesting that i's that much slower on the Mac. But considering my > numbers: > > * FSFS: real 7m33.213s, user 19m8.075s, sys 10m54.739s > * BDB: real 35m17.766s, user 15m28.395s, sys 11m58.824s > > Notice that the sys and user times are comparable, yet real-time is an > order of magnitude higher with BDB. Also, in the FSFS case, real time is > actually lower than user or sys time, which makes sense for parallel > tests. I interpret that as meaning that FSFS parallelizes (across > different processes) better than BDB, and that BDB spends most of its > time twiddling its thumbs waiting for I/O.
Given the Linux numbers the problem is OSX specific and not inherent to BDB. Repository access in the testsuite is all single-thread and single-process so any BDB locking should be trivial. If we don't drop BDB then we shoud attempt to find out why BDB is slow on OSX. -- Certified & Supported Apache Subversion Downloads: http://www.wandisco.com/subversion/download
