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phases: keep internal state as rev-num instead of node-id...
phases: keep internal state as rev-num instead of node-id Node-id are expensive to work with, dealing with revision is much simple and faster. The fact we still used node-id here shows how few effort have been put into making the phase logic fast. We tend to no longer use node-id internally for about ten years. This has a large impact of repository with many draft roots. For example this Mozilla-try copy have ½ Million draft roots and `perf::unbundle` see a significant improvement. ### data-env-vars.name = mozilla-try-2023-03-22-zstd-sparse-revlog # benchmark.name = hg.perf.perf-unbundle # bin-env-vars.hg.flavor = no-rust # bin-env-vars.hg.py-re2-module = default # benchmark.variants.issue6528 = disabled # benchmark.variants.revs = last-1 before:: 1.746791 seconds after:: 1.278379 seconds (-26.82%) # benchmark.variants.revs = last-10 before:: 3.145774 seconds after:: 2.103735 seconds (-33.13%) # benchmark.variants.revs = last-100 before:: 3.487635 seconds after:: 2.446749 seconds (-29.85%) # benchmark.variants.revs = last-1000 before:: 5.007568 seconds after:: 3.989923 seconds (-20.32%)
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README.rst
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Pulkit Goyal
thirdparty: vendor cbor2 python library...
 r37144 .. image:: https://travis-ci.org/agronholm/cbor2.svg?branch=master
:target: https://travis-ci.org/agronholm/cbor2
:alt: Build Status
.. image:: https://coveralls.io/repos/github/agronholm/cbor2/badge.svg?branch=master
:target: https://coveralls.io/github/agronholm/cbor2?branch=master
:alt: Code Coverage
This library provides encoding and decoding for the Concise Binary Object Representation (CBOR)
(`RFC 7049`_) serialization format.
There exists another Python CBOR implementation (cbor) which is faster on CPython due to its C
extensions. On PyPy, cbor2 and cbor are almost identical in performance. The other implementation
also lacks documentation and a comprehensive test suite, does not support most standard extension
tags and is known to crash (segfault) when passed a cyclic structure (say, a list containing
itself).
.. _RFC 7049: https://tools.ietf.org/html/rfc7049
Project links
-------------
* `Documentation <http://cbor2.readthedocs.org/>`_
* `Source code <https://github.com/agronholm/cbor2>`_
* `Issue tracker <https://github.com/agronholm/cbor2/issues>`_