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perf: make `hg perfwrite` more flexible...
perf: make `hg perfwrite` more flexible The more flexible command was used recently while finding a solution for a buffering bug (eventually fixed in f9734b2d59cc (the changeset description uses a different benchmark)). In comparison to the previous version, the new version is much more flexible. While using it, the focus was on testing small writes. For this reason, by default it calls ui.write() 100 times with a single byte plus one newline byte, for 100 lines. To get the previous behavior, run `hg perfwrite --nlines=100000 --nitems=1 --item='Testing write performance' --batch-line`.
Manuel Jacob - - Load All Authors

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== New Features ==
== New Experimental Features ==
* The core of some hg operations have been (and are being)
implemented in rust, for speed. `hg status` on a repository with
300k tracked files goes from 1.8s to 0.6s for instance.
This has currently been tested only on linux, and does not build on
windows. See rust/README.rst in the mercurial repository for
instructions to opt into this.
== Backwards Compatibility Changes ==
* Mercurial now requires at least Python 2.7.9 or a Python version that
backported modern SSL/TLS features (as defined in PEP 466), and that Python
was compiled against a OpenSSL version supporting TLS 1.1 or TLS 1.2
(likely this requires the OpenSSL version to be at least 1.0.1).
* The `hg perfwrite` command from contrib/perf.py was made more flexible and
changed its default behavior. To get the previous behavior, run `hg perfwrite
--nlines=100000 --nitems=1 --item='Testing write performance' --batch-line`.
== Internal API Changes ==
* logcmdutil.diffordiffstat() now takes contexts instead of nodes.
* The `mergestate` class along with some related methods and constants have
moved from `mercurial.merge` to a new `mercurial.mergestate` module.