Mercurial > hg
view tests/lockdelay.py @ 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 | a76d5ba7ac43 |
children | 2372284d9457 |
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# Dummy extension that adds a delay after acquiring a lock. # # This extension can be used to test race conditions between lock acquisition. from __future__ import absolute_import import os import time def reposetup(ui, repo): class delayedlockrepo(repo.__class__): def lock(self): delay = float(os.environ.get('HGPRELOCKDELAY', '0.0')) if delay: time.sleep(delay) res = super(delayedlockrepo, self).lock() delay = float(os.environ.get('HGPOSTLOCKDELAY', '0.0')) if delay: time.sleep(delay) return res repo.__class__ = delayedlockrepo