Commit Briefs
cache a list of known pack index files when the repository is opened
Avoids overhead due to readdir calls while searching a pack index. ok op@
reuse existing deltas when creating pack files
tested by thomas, naddy, and myself
increase pack index cache size from 16 to 64 to improve performance
This can make a huge difference on repositories which contain more than 16 pack files, at the expense of additional open file handles. My test case was a ports.git repository with > 60 pack files (these accumulate due to 'got fetch', and 'git repack -a' would condense them). With cache size 16 'got update' in /usr/ports took more than 60 seconds. With cache size 64 the same command took less than 5 seconds. The root cause is probably that mapping and unmapping large files over and over again is expensive on OpenBSD.
add fd field to got_repository, modify got_packidx_open to use fds
These changes are intended to make got more compatible with FreeBSD's Capsicum. ok stsp
add got.conf(5) configuration file
ok tracey
spawn more pack file helpers again now that leaks got fixed
/usr/src updates have become slower for some reason and my best guess is that caching of packed data has become less effective with df613bb4d8662c28a9888714a80ca572bff9d924 (leaks were subsequently fixed by 2cb49fa8fb84f3a8fc2eb6036a6bd9b64c57e347 and by 0dd5271bd8f2a4f92ac3536fcc493eebc39b86e5)