Delete tools/telemetry.

tools/telemetry/telemetry/internal/platform/profiler/perf_profiler.py

Index: tools/telemetry/telemetry/internal/platform/profiler/perf_profiler.py
diff --git a/tools/telemetry/telemetry/internal/platform/profiler/perf_profiler.py b/tools/telemetry/telemetry/internal/platform/profiler/perf_profiler.py
deleted file mode 100644
index 9218ae8c8b86efd3104daad6ce2ee133807d20f5..0000000000000000000000000000000000000000
--- a/tools/telemetry/telemetry/internal/platform/profiler/perf_profiler.py
+++ /dev/null
@@ -1,257 +0,0 @@
-# Copyright 2013 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-import logging
-import os
-import re
-import signal
-import subprocess
-import sys
-import tempfile
-
-from devil.android import device_errors  # pylint: disable=import-error
-
-from telemetry.internal.util import binary_manager
-from telemetry.core import platform
-from telemetry.internal.platform import profiler
-from telemetry.internal.platform.profiler import android_profiling_helper
-
-from devil.android.perf import perf_control  # pylint: disable=import-error
-
-
-_PERF_OPTIONS = [
-    # Sample across all processes and CPUs to so that the current CPU gets
-    # recorded to each sample.
-    '--all-cpus',
-    # In perf 3.13 --call-graph requires an argument, so use the -g short-hand
-    # which does not.
-    '-g',
-    # Record raw samples to get CPU information.
-    '--raw-samples',
-    # Increase sampling frequency for better coverage.
-    '--freq', '2000',
-]
-
-_PERF_OPTIONS_ANDROID = [
-    # Increase priority to avoid dropping samples. Requires root.
-    '--realtime', '80',
-]
-
-
-def _NicePath(path):
-  rel_path = os.path.relpath(path, os.curdir)
-  return rel_path if len(rel_path) < len(path) else path
-
-
-def _PrepareHostForPerf():
-  kptr_file = '/proc/sys/kernel/kptr_restrict'
-  with open(kptr_file) as f:
-    if f.read().strip() != '0':
-      logging.warning('Making kernel symbols unrestricted. You might have to '
-          'enter your password for "sudo".')
-      with tempfile.NamedTemporaryFile() as zero:
-        zero.write('0')
-        zero.flush()
-        subprocess.call(['/usr/bin/sudo', 'cp', zero.name, kptr_file])
-
-
-def _InstallPerfHost():
-  perfhost_name = android_profiling_helper.GetPerfhostName()
-  host = platform.GetHostPlatform()
-  if not host.CanLaunchApplication(perfhost_name):
-    host.InstallApplication(perfhost_name)
-  return binary_manager.FetchPath(perfhost_name, 'x86_64', 'linux')
-
-
-class _SingleProcessPerfProfiler(object):
-  """An internal class for using perf for a given process.
-
-  On android, this profiler uses pre-built binaries from AOSP.
-  See more details in prebuilt/android/README.txt.
-  """
-  def __init__(self, pid, output_file, browser_backend, platform_backend,
-               perf_binary, perfhost_binary):
-    self._pid = pid
-    self._browser_backend = browser_backend
-    self._platform_backend = platform_backend
-    self._output_file = output_file
-    self._tmp_output_file = tempfile.NamedTemporaryFile('w', 0)
-    self._is_android = platform_backend.GetOSName() == 'android'
-    self._perf_binary = perf_binary
-    self._perfhost_binary = perfhost_binary
-    cmd_prefix = []
-    perf_args = ['record', '--pid', str(pid)]
-    if self._is_android:
-      cmd_prefix = ['adb', '-s', browser_backend.device.adb.GetDeviceSerial(),
-                   'shell', perf_binary]
-      perf_args += _PERF_OPTIONS_ANDROID
-      output_file = os.path.join('/sdcard', 'perf_profiles',
-                                 os.path.basename(output_file))
-      self._device_output_file = output_file
-      browser_backend.device.RunShellCommand(
-          'mkdir -p ' + os.path.dirname(self._device_output_file))
-      browser_backend.device.RunShellCommand(
-          'rm -f ' + self._device_output_file)
-    else:
-      cmd_prefix = [perf_binary]
-    perf_args += ['--output', output_file] + _PERF_OPTIONS
-    self._proc = subprocess.Popen(cmd_prefix + perf_args,
-        stdout=self._tmp_output_file, stderr=subprocess.STDOUT)
-
-  def CollectProfile(self):
-    if ('renderer' in self._output_file and
-        not self._is_android and
-        not self._platform_backend.GetCommandLine(self._pid)):
-      logging.warning('Renderer was swapped out during profiling. '
-                      'To collect a full profile rerun with '
-                      '"--extra-browser-args=--single-process"')
-    if self._is_android:
-      device = self._browser_backend.device
-      try:
-        binary_name = os.path.basename(self._perf_binary)
-        device.KillAll(binary_name, signum=signal.SIGINT, blocking=True,
-                       quiet=True)
-      except device_errors.CommandFailedError:
-        logging.warning('The perf process could not be killed on the device.')
-    self._proc.send_signal(signal.SIGINT)
-    exit_code = self._proc.wait()
-    try:
-      if exit_code == 128:
-        raise Exception(
-            """perf failed with exit code 128.
-Try rerunning this script under sudo or setting
-/proc/sys/kernel/perf_event_paranoid to "-1".\nOutput:\n%s""" %
-            self._GetStdOut())
-      elif exit_code not in (0, -2):
-        raise Exception(
-            'perf failed with exit code %d. Output:\n%s' % (exit_code,
-                                                            self._GetStdOut()))
-    finally:
-      self._tmp_output_file.close()
-    cmd = '%s report -n -i %s' % (_NicePath(self._perfhost_binary),
-                                  self._output_file)
-    if self._is_android:
-      device = self._browser_backend.device
-      try:
-        device.PullFile(self._device_output_file, self._output_file)
-      except:
-        logging.exception('New exception caused by DeviceUtils conversion')
-        raise
-      required_libs = \
-          android_profiling_helper.GetRequiredLibrariesForPerfProfile(
-              self._output_file)
-      symfs_root = os.path.dirname(self._output_file)
-      kallsyms = android_profiling_helper.CreateSymFs(device,
-                                                      symfs_root,
-                                                      required_libs,
-                                                      use_symlinks=True)
-      cmd += ' --symfs %s --kallsyms %s' % (symfs_root, kallsyms)
-      for lib in required_libs:
-        lib = os.path.join(symfs_root, lib[1:])
-        if not os.path.exists(lib):
-          continue
-        objdump_path = android_profiling_helper.GetToolchainBinaryPath(
-            lib, 'objdump')
-        if objdump_path:
-          cmd += ' --objdump %s' % _NicePath(objdump_path)
-          break
-
-    print 'To view the profile, run:'
-    print ' ', cmd
-    return self._output_file
-
-  def _GetStdOut(self):
-    self._tmp_output_file.flush()
-    try:
-      with open(self._tmp_output_file.name) as f:
-        return f.read()
-    except IOError:
-      return ''
-
-
-class PerfProfiler(profiler.Profiler):
-
-  def __init__(self, browser_backend, platform_backend, output_path, state):
-    super(PerfProfiler, self).__init__(
-        browser_backend, platform_backend, output_path, state)
-    process_output_file_map = self._GetProcessOutputFileMap()
-    self._process_profilers = []
-    self._perf_control = None
-
-    perf_binary = perfhost_binary = _InstallPerfHost()
-    try:
-      if platform_backend.GetOSName() == 'android':
-        device = browser_backend.device
-        perf_binary = android_profiling_helper.PrepareDeviceForPerf(device)
-        self._perf_control = perf_control.PerfControl(device)
-        self._perf_control.SetPerfProfilingMode()
-      else:
-        _PrepareHostForPerf()
-
-      for pid, output_file in process_output_file_map.iteritems():
-        if 'zygote' in output_file:
-          continue
-        self._process_profilers.append(
-            _SingleProcessPerfProfiler(
-                pid, output_file, browser_backend, platform_backend,
-                perf_binary, perfhost_binary))
-    except:
-      if self._perf_control:
-        self._perf_control.SetDefaultPerfMode()
-      raise
-
-  @classmethod
-  def name(cls):
-    return 'perf'
-
-  @classmethod
-  def is_supported(cls, browser_type):
-    if sys.platform != 'linux2':
-      return False
-    if platform.GetHostPlatform().GetOSName() == 'chromeos':
-      return False
-    return True
-
-  @classmethod
-  def CustomizeBrowserOptions(cls, browser_type, options):
-    options.AppendExtraBrowserArgs([
-        '--no-sandbox',
-        '--allow-sandbox-debugging',
-    ])
-
-  def CollectProfile(self):
-    if self._perf_control:
-      self._perf_control.SetDefaultPerfMode()
-    output_files = []
-    for single_process in self._process_profilers:
-      output_files.append(single_process.CollectProfile())
-    return output_files
-
-  @classmethod
-  def GetTopSamples(cls, file_name, number):
-    """Parses the perf generated profile in |file_name| and returns a
-    {function: period} dict of the |number| hottests functions.
-    """
-    assert os.path.exists(file_name)
-    with open(os.devnull, 'w') as devnull:
-      _InstallPerfHost()
-      report = subprocess.Popen(
-          [android_profiling_helper.GetPerfhostName(),
-           'report', '--show-total-period', '-U', '-t', '^', '-i', file_name],
-          stdout=subprocess.PIPE, stderr=devnull).communicate()[0]
-    period_by_function = {}
-    for line in report.split('\n'):
-      if not line or line.startswith('#'):
-        continue
-      fields = line.split('^')
-      if len(fields) != 5:
-        continue
-      period = int(fields[1])
-      function = fields[4].partition(' ')[2]
-      function = re.sub('<.*>', '', function)  # Strip template params.
-      function = re.sub('[(].*[)]', '', function)  # Strip function params.
-      period_by_function[function] = period
-      if len(period_by_function) == number:
-        break
-    return period_by_function