Mercurial > hg
view tests/test-diff-copy-depth.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 | bca69641de61 |
children |
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$ for i in aaa zzz; do > hg init t > cd t > > echo > echo "-- With $i" > > touch file > hg add file > hg ci -m "Add" > > hg cp file $i > hg ci -m "a -> $i" > > hg cp $i other-file > echo "different" >> $i > hg ci -m "$i -> other-file" > > hg cp other-file somename > > echo "Status": > hg st -C > echo > echo "Diff:" > hg diff -g > > cd .. > rm -rf t > done -- With aaa Status: A somename other-file Diff: diff --git a/other-file b/somename copy from other-file copy to somename -- With zzz Status: A somename other-file Diff: diff --git a/other-file b/somename copy from other-file copy to somename