upstream/mercurial-mirror Files · tests/test-wireproto.py

hgweb: profile HTTP requests...

hgweb: profile HTTP requests Currently, running `hg serve --profile` doesn't yield anything useful: when the process is terminated the profiling output displays results from the main thread, which typically spends most of its time in select.select(). Furthermore, it has no meaningful results from mercurial.* modules because the threads serving HTTP requests don't actually get profiled. This patch teaches the hgweb wsgi applications to profile individual requests. If profiling is enabled, the profiler kicks in after HTTP/WSGI environment processing but before Mercurial's main request processing. The profile results are printed to the configured profiling output. If running `hg serve` from a shell, they will be printed to stderr, just before the HTTP request line is logged. If profiling to a file, we only write a single profile to the file because the file is not opened in append mode. We could add support for appending to files in a future patch if someone wants it. Per request profiling doesn't work with the statprof profiler because internally that profiler collects samples from the thread that *initially* requested profiling be enabled. I have plans to address this by vendoring Facebook's customized statprof and then improving it.

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      from __future__ import absolute_import, print_function

      from mercurial import (

          util,

          wireproto,

      )

      stringio = util.stringio

      class proto(object):

          def __init__(self, args):

              self.args = args

          def getargs(self, spec):

              args = self.args

              args.setdefault('*', {})

              names = spec.split()

              return [args[n] for n in names]

      class clientpeer(wireproto.wirepeer):

          def __init__(self, serverrepo):

              self.serverrepo = serverrepo

          def _capabilities(self):

              return ['batch']

          def _call(self, cmd, **args):

              return wireproto.dispatch(self.serverrepo, proto(args), cmd)

          def _callstream(self, cmd, **args):

              return stringio(self._call(cmd, **args))

          @wireproto.batchable

          def greet(self, name):

              f = wireproto.future()

              yield {'name': mangle(name)}, f

              yield unmangle(f.value)

      class serverrepo(object):

          def greet(self, name):

              return "Hello, " + name

          def filtered(self, name):

              return self

      def mangle(s):

          return ''.join(chr(ord(c) + 1) for c in s)

      def unmangle(s):

          return ''.join(chr(ord(c) - 1) for c in s)

      def greet(repo, proto, name):

          return mangle(repo.greet(unmangle(name)))

      wireproto.commands['greet'] = (greet, 'name',)

      srv = serverrepo()

      clt = clientpeer(srv)

      print(clt.greet("Foobar"))

      b = clt.batch()

      fs = [b.greet(s) for s in ["Fo, =;:<o", "Bar"]]

      b.submit()

      print([f.value for f in fs])

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				from __future__ import absolute_import, print_function

				from mercurial import (
				util,
				wireproto,
				)
				stringio = util.stringio

				class proto(object):
				def __init__(self, args):
				self.args = args
				def getargs(self, spec):
				args = self.args
				args.setdefault('*', {})
				names = spec.split()
				return [args[n] for n in names]

				class clientpeer(wireproto.wirepeer):
				def __init__(self, serverrepo):
				self.serverrepo = serverrepo

				def _capabilities(self):
				return ['batch']

				def _call(self, cmd, **args):
				return wireproto.dispatch(self.serverrepo, proto(args), cmd)

				def _callstream(self, cmd, **args):
				return stringio(self._call(cmd, **args))

				@wireproto.batchable
				def greet(self, name):
				f = wireproto.future()
				yield {'name': mangle(name)}, f
				yield unmangle(f.value)

				class serverrepo(object):
				def greet(self, name):
				return "Hello, " + name

				def filtered(self, name):
				return self

				def mangle(s):
				return ''.join(chr(ord(c) + 1) for c in s)
				def unmangle(s):
				return ''.join(chr(ord(c) - 1) for c in s)

				def greet(repo, proto, name):
				return mangle(repo.greet(unmangle(name)))

				wireproto.commands['greet'] = (greet, 'name',)

				srv = serverrepo()
				clt = clientpeer(srv)

				print(clt.greet("Foobar"))
				b = clt.batch()
				fs = [b.greet(s) for s in ["Fo, =;:<o", "Bar"]]
				b.submit()
				print([f.value for f in fs])