clone: properly exclude rev-branch-cache from post clone cache warming
When adding "CACHE_REV_BRANCH" to "CACHES_ALL" in
e51161b12c7e, I did not
expected it to impact the clone steps. However the "CACHES_POST_CLONE" set is
created rather creatively. (we should fix that, but not on stable)
The benchmark caught a quite significant slowdown one hardlink and ssh-stream
clones. Such slow down can be reduced to around ~5% by fully warming the cache
before the clone. However keeping this expensive step away from the clone
operation fully fix the slowdown and preserve the initial intend.
Example slowdow for hardlink clone
### benchmark.name = hg.command.clone
# bin-env-vars.hg.flavor = default
# bin-env-vars.hg.py-re2-module = default
# benchmark.variants.explicit-rev = none
# benchmark.variants.
issue6528 = default
# benchmark.variants.protocol = local-hardlink
# benchmark.variants.pulled-delta-reuse-policy = default
# benchmark.variants.resource-usage = default
# benchmark.variants.validate = default
## data-env-vars.name = netbeans-2018-08-01-zstd-sparse-revlog
6.8.2: 19.799752
6.9rc0: 29.017493 (+46.55%, +9.22)
after: 19.929341
## data-env-vars.name = mercurial-public-2018-08-01-zstd-sparse-revlog
6.8.2: 0.468020
6.9rc0: 1.701294 (+263.51%, +1.23)
after: 0.471934
## data-env-vars.name = pypy-2024-03-22-zstd-sparse-revlog
6.8.2: 2.397564
6.9rc0: 5.666641 (+137.41%, +3.28)
after: 2.428085
# An example WSGI for use with mod_wsgi, edit as necessary
# See https://mercurial-scm.org/wiki/modwsgi for more information
# Path to repo or hgweb config to serve (see 'hg help hgweb')
config = b"/path/to/repo/or/config"
# Uncomment and adjust if Mercurial is not installed system-wide
# (consult "installed modules" path from 'hg debuginstall'):
#import sys; sys.path.insert(0, "/path/to/python/lib")
# enable demandloading to reduce startup time
from mercurial import demandimport; demandimport.enable()
from mercurial.hgweb import hgweb
application = hgweb(config)