Mercurial > hg
view tests/test-revset-dirstate-parents.t @ 33269:ead6749354e1
phabricator: try to fetch differential revisions in batch
Previously, we read Differential Revisions one by one by calling
`differential.query`.
Fetching them one by one is suboptimal. Unfortunately, there is no Conduit
API that allows us to get a stack of diffids using a single API call.
This patch tries to be smarter using a simple heuristic: when fetching D59
as a stack, previous IDs like D51, D52, D53, ..., D58 are likely belonging
to a same stack so just fetch them as well. Since `differential.query` only
returns cheap metadata without expensive diff content, it shouldn't be a big
problem for the server.
Using a test Phabricator instance, this patch reduces `phabread` reading a
10 patch stack from about 13 to 30 seconds to 8 seconds.
author | Jun Wu <quark@fb.com> |
---|---|
date | Tue, 04 Jul 2017 16:36:48 -0700 |
parents | 7d87f672d069 |
children | 7bbc4e113e5f |
line wrap: on
line source
$ HGENCODING=utf-8 $ export HGENCODING $ try() { > hg debugrevspec --debug $@ > } $ log() { > hg log --template '{rev}\n' -r "$1" > } $ hg init repo $ cd repo $ try 'p1()' (func ('symbol', 'p1') None) * set: <baseset []> $ try 'p2()' (func ('symbol', 'p2') None) * set: <baseset []> $ try 'parents()' (func ('symbol', 'parents') None) * set: <baseset+ []> null revision $ log 'p1()' $ log 'p2()' $ log 'parents()' working dir with a single parent $ echo a > a $ hg ci -Aqm0 $ log 'p1()' 0 $ log 'tag() and p1()' $ log 'p2()' $ log 'parents()' 0 $ log 'tag() and parents()' merge in progress $ echo b > b $ hg ci -Aqm1 $ hg up -q 0 $ echo c > c $ hg ci -Aqm2 $ hg merge -q $ log 'p1()' 2 $ log 'p2()' 1 $ log 'tag() and p2()' $ log 'parents()' 1 2 $ cd ..