Mercurial > hg
comparison mercurial/help/config.txt @ 38737:913ca175c4ae
aggressivemergedelta: document rename and move to `revlog` section
The config does not follow our naming guideline and "Aggressive" is probably a
word to keep away from users.
The option does not truly fit in the `format` section. It can be turned on and
off for existing repository without much consequence regarding compatibility.
A new `revlog` option is created to control behavior related to revlog writing
and reading. We can see multiple other config options that could be migrated
there.
* format.maxchainlen
* experimental.mmapindexthreshold
* experimental.sparse-read.density-threshold (in an updated form)
* experimental.sparse-read.min-gap-size (in an updated form)
In addition, we can foresee at least a couple of sparse-revlog related option
coming too (to reduce delta chain length and increase snapshot reuse)
These two extra options might fit there too. Unless we want to create a
section dedicated to caches and performance.
* format.chunkcachesize
* format.manifestcachesize
For now, we only migrate `optimize-delta-parent-choice` since it is getting
out of experimental. It is too close to the release to move the other one. In
addition, we still lack proper the prioritization of alias that would help
renaming them without bad consequence for users.
(Not fully happy about the `revlog` name but could not find better).
| author | Boris Feld <boris.feld@octobus.net> |
|---|---|
| date | Thu, 19 Jul 2018 10:35:29 +0200 |
| parents | 8891dc15b327 |
| children | ae17555ef93f |
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| 38736:93777d16a25d | 38737:913ca175c4ae |
|---|---|
| 1771 ``revsetalias`` | 1771 ``revsetalias`` |
| 1772 --------------- | 1772 --------------- |
| 1773 | 1773 |
| 1774 Alias definitions for revsets. See :hg:`help revsets` for details. | 1774 Alias definitions for revsets. See :hg:`help revsets` for details. |
| 1775 | 1775 |
| 1776 ``revlog`` | |
| 1777 ---------- | |
| 1778 | |
| 1779 Control the strategy Mercurial uses internally to store history. Options in this | |
| 1780 category impact performance and repository size. | |
| 1781 | |
| 1782 ``optimize-delta-parent-choice`` | |
| 1783 When storing a merge revision, both parents will be equally considered as | |
| 1784 a possible delta base. This results in better delta selection and improved | |
| 1785 revlog compression. This option is enabled by default. | |
| 1786 | |
| 1787 Turning this option off can result in large increase of repository size for | |
| 1788 repository with many merges. | |
| 1789 | |
| 1776 ``server`` | 1790 ``server`` |
| 1777 ---------- | 1791 ---------- |
| 1778 | 1792 |
| 1779 Controls generic server settings. | 1793 Controls generic server settings. |
| 1780 | 1794 |