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2021-10-08git: use async_wait_all everywhere
Some code paths may use maximum size checks, so ensure any checks are waited on, too.
2021-01-01update copyrights for 2021
Using "make update-copyrights" after setting GNULIB_PATH in my config.mak
2020-06-13xt/*: show some tunable parameters
This will make it easier to show parameters used for testing and potential tweaks to be made.
2020-06-13imap: use git-cat-file asynchronously
This ought to improve overall performance with multiple clients. Single client performance suffers a tiny bit due to extra syscall overhead from epoll. This also makes the existing async interface easier-to-use, since calling cat_async_begin is no longer required.
2020-02-06treewide: run update-copyrights from gnulib for 2019
I didn't wait until September to do it, this year!
2020-01-13xt/git_async_cmp: do not slurp large OID list into memory
I somehow thought "foreach (<$cat>)" could work like "while (<$cat>)" when it came to iterating over file handles...
2019-12-12git: async batch interface
This is a transitionary interface which does NOT require an event loop. It can be plugged into in current synchronous code without major surgery. It allows HTTP/1.1 pipelining-like functionality by taking advantage of predictable and well-specified POSIX pipe semantics by stuffing multiple git cat-file requests into the --batch pipe With xt/git_async_cmp.t and GIANT_GIT_DIR=git.git, the async interface is 10-25% faster than the synchronous interface since it can keep the "git cat-file" process busier. This is expected to improve performance on systems with slower storage (but multiple cores).