Mercurial > hg
view tests/dumbhttp.py @ 27475:a2e2a8fa5fd1
revlog: avoid string slice when decompressing u* chunks
Revlog chunks can be stored uncompressed. If the first byte of the
raw data is \0, we store the data as is. Else we prefix it with 'u'.
Before, we performed a string slice to strip out the 'u' prefix.
With this patch, we use a buffer to avoid an extra memory copy and
associated garbage collection overhead.
I was unable to verify any performance impact of this patch. For both
mozilla-central and the hg repos, the number of manifest revisions
with 'u' prefixes is very small - under 1%. So this change likely
isn't called enough to have an impact on manifest reading. However,
the reasoning behind this change is solid, so it should be safe.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Sun, 20 Dec 2015 16:00:27 -0800 |
parents | 0bb8c405a7c7 |
children | 7623ba92af72 |
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#!/usr/bin/env python from __future__ import absolute_import """ Small and dumb HTTP server for use in tests. """ import optparse import BaseHTTPServer import signal import SimpleHTTPServer import sys from mercurial import ( cmdutil, ) OptionParser = optparse.OptionParser class simplehttpservice(object): def __init__(self, host, port): self.address = (host, port) def init(self): self.httpd = BaseHTTPServer.HTTPServer( self.address, SimpleHTTPServer.SimpleHTTPRequestHandler) def run(self): self.httpd.serve_forever() if __name__ == '__main__': parser = OptionParser() parser.add_option('-p', '--port', dest='port', type='int', default=8000, help='TCP port to listen on', metavar='PORT') parser.add_option('-H', '--host', dest='host', default='localhost', help='hostname or IP to listen on', metavar='HOST') parser.add_option('--pid', dest='pid', help='file name where the PID of the server is stored') parser.add_option('-f', '--foreground', dest='foreground', action='store_true', help='do not start the HTTP server in the background') parser.add_option('--daemon-pipefds') (options, args) = parser.parse_args() signal.signal(signal.SIGTERM, lambda x, y: sys.exit(0)) if options.foreground and options.pid: parser.error("options --pid and --foreground are mutually exclusive") opts = {'pid_file': options.pid, 'daemon': not options.foreground, 'daemon_pipefds': options.daemon_pipefds} service = simplehttpservice(options.host, options.port) cmdutil.service(opts, initfn=service.init, runfn=service.run, runargs=[sys.executable, __file__] + sys.argv[1:])