Pierre-Yves David <pierre-yves.david@octobus.net> [Mon, 21 May 2018 17:28:35 +0200] rev 42126
repoview: introduce a filter for serving hidden changesets
There are multiple usecase for being able to explicitly view or pull obsolete
from a server. We need to be able to do so without exposing the secret
changesets. We introduces a dedicated repository "view" to do so. Way to expose
this "view" to the user will come later.
To keep a behavior consistent with expected client/server behavior, the general
idea is for the obsolete access to be explicitly requested by the code
generating the request. In addition, the will be server side configuration to
restrict the access to this feature.
Pierre-Yves David <pierre-yves.david@octobus.net> [Sat, 13 Apr 2019 20:57:50 +0200] rev 42125
repoview: fix conditional around unserved changesets
The conditional could lead to wrong computation since we have more unserved
changesets than just the "secret" phase.
In addition, now that we have efficient caching of phased changesets, we don't
need the conditional anymore.
Pulkit Goyal <pulkit@yandex-team.ru> [Fri, 05 Apr 2019 16:05:20 +0300] rev 42124
branch: return early if we find an open named branch apart from default
The current code builds a list of all the open named branches except default and
then bool that. This is mostly fine until you get a repo which has thousands of
named branches.
Differential Revision: https://phab.mercurial-scm.org/D6211
Pulkit Goyal <pulkit@yandex-team.ru> [Fri, 05 Apr 2019 15:57:09 +0300] rev 42123
branchcache: don't verify closed nodes in _branchtip()
We only do membership testing there.
Differential Revision: https://phab.mercurial-scm.org/D6210
Pulkit Goyal <pulkit@yandex-team.ru> [Fri, 05 Apr 2019 15:56:33 +0300] rev 42122
branchcache: don't verify closed nodes in iteropen()
We expect that the nodes passed to iteropen() will be verified. We are only
testing for membership in closed nodes set, so we don't need to verify the whole
closed nodes set.
This will speed up calculating branchheads() when there are lot of closed nodes
related to other branches.
Differential Revision: https://phab.mercurial-scm.org/D6209
Pulkit Goyal <pulkit@yandex-team.ru> [Mon, 01 Apr 2019 13:56:47 +0300] rev 42121
branchcache: lazily validate nodes from the branchmap
On my personal hg-repository with 365 entries in .hg/cache/branch2, following
are the numbers for perfbranchmapload.
Before this patch:
! wall 0.000866 comb 0.000000 user 0.000000 sys 0.000000 (best of 2680)
! wall 0.001525 comb 0.000000 user 0.000000 sys 0.000000 (max of 2680)
! wall 0.001107 comb 0.001097 user 0.001086 sys 0.000011 (avg of 2680)
! wall 0.001104 comb 0.000000 user 0.000000 sys 0.000000 (median of 2680)
With this patch:
! wall 0.000530 comb 0.000000 user 0.000000 sys 0.000000 (best of 4240)
! wall 0.001078 comb 0.000000 user 0.000000 sys 0.000000 (max of 4240)
! wall 0.000696 comb 0.000693 user 0.000677 sys 0.000017 (avg of 4240)
! wall 0.000690 comb 0.000000 user 0.000000 sys 0.000000 (median of 4240)
On our internal repository with ~20k entries in branchcache, I see improvement
from 0.125 sec to 0.066 sec which is 47% speed up.
The above are the numbers of perfbranchmapload which shows how much time we
saved by not validating the nodes. But we need to validate some nodes. Following
are timings of some mercurial operations which have speed up because of this
lazy validation of nodes:
No-op `hg update` on our internal repository (Avg on 4 runs):
Before: 0.540 secs
After: 0.430 secs
Setting a branch name which already exists without --force (Avg of 4 runs):
Before: 0.510 secs
After: 0.250 secs
I ran the ASV performance suite and was unable to see any improvements except
there was improvement of perfdirstatewrite() on netbeans which I think was not
related.
I looked into the commit code, the command which I am trying to speedup, it
looks like it uses revbranchcache to update the branchcache.
Differential Revision: https://phab.mercurial-scm.org/D6208
Pulkit Goyal <pulkit@yandex-team.ru> [Tue, 19 Mar 2019 16:52:15 +0300] rev 42120
branchcache: add functions to validate changelog nodes
This patch adds functions to validate closed nodes, validate nodes for a certain
branch and for all the branches. These functions will be used in upcoming
patches.
Differential Revision: https://phab.mercurial-scm.org/D6207