Mercurial > hg
view tests/test-oldcgi.t @ 39560:84bf6ded9317
wireprotoframing: buffer emitted data to reduce frame count
An upcoming commit introduces a wire protocol command that can emit
hundreds of thousands of small objects. Without a buffering layer,
we would emit a single, small frame for every object. Performance
profiling revealed this to be a source of significant overhead for
both client and server.
This commit introduces a very crude buffering layer so that we emit
fewer, bigger frames in such a scenario. This code will likely get
rewritten in the future to be part of the streams API, as we'll
need a similar strategy for compressing data. I don't want to think
about it too much at the moment though.
server
before: user 32.500+0.000 sys 1.160+0.000
after: user 20.230+0.010 sys 0.180+0.000
client
before: user 133.400+0.000 sys 93.120+0.000
after: user 68.370+0.000 sys 32.950+0.000
This appears to indicate we have significant overhead in the frame
processing code on both client and server. It might be worth profiling
that at some point...
Differential Revision: https://phab.mercurial-scm.org/D4473
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Wed, 29 Aug 2018 16:43:17 -0700 |
parents | 8e6f4939a69a |
children | 23b749b84b8a |
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#require no-msys # MSYS will translate web paths as if they were file paths This tests if CGI files from before d0db3462d568 still work. $ hg init test $ cat >hgweb.cgi <<HGWEB > #!$PYTHON > # > # An example CGI script to use hgweb, edit as necessary > > import cgitb, os, sys > cgitb.enable() > > # sys.path.insert(0, "/path/to/python/lib") # if not a system-wide install > from mercurial import hgweb > > h = hgweb.hgweb("test", "Empty test repository") > h.run() > HGWEB $ chmod 755 hgweb.cgi $ cat >hgweb.config <<HGWEBDIRCONF > [paths] > test = test > HGWEBDIRCONF $ cat >hgwebdir.cgi <<HGWEBDIR > #!$PYTHON > # > # An example CGI script to export multiple hgweb repos, edit as necessary > > import cgitb, sys > cgitb.enable() > > # sys.path.insert(0, "/path/to/python/lib") # if not a system-wide install > from mercurial import hgweb > > # The config file looks like this. You can have paths to individual > # repos, collections of repos in a directory tree, or both. > # > # [paths] > # virtual/path = /real/path > # virtual/path = /real/path > # > # [collections] > # /prefix/to/strip/off = /root/of/tree/full/of/repos > # > # collections example: say directory tree /foo contains repos /foo/bar, > # /foo/quux/baz. Give this config section: > # [collections] > # /foo = /foo > # Then repos will list as bar and quux/baz. > > # Alternatively you can pass a list of ('virtual/path', '/real/path') tuples > # or use a dictionary with entries like 'virtual/path': '/real/path' > > h = hgweb.hgwebdir("hgweb.config") > h.run() > HGWEBDIR $ chmod 755 hgwebdir.cgi $ . "$TESTDIR/cgienv" $ $PYTHON hgweb.cgi > page1 $ $PYTHON hgwebdir.cgi > page2 $ PATH_INFO="/test/" $ PATH_TRANSLATED="/var/something/test.cgi" $ REQUEST_URI="/test/test/" $ SCRIPT_URI="http://hg.omnifarious.org/test/test/" $ SCRIPT_URL="/test/test/" $ $PYTHON hgwebdir.cgi > page3 $ grep -i error page1 page2 page3 [1]