Exemplo n.º 1
0
    def get_cluster_specs(self, old_specs, cluster, context):
        core = self.get_core_name(cluster)
        self.number_of_cpus[cluster] = sum([1 for c in self.device.core_names if c == core])

        cluster_frequencies = self.get_frequencies_param(cluster)
        if not cluster_frequencies:
            raise InstrumentError('Could not read available frequencies for {}'.format(core))
        min_frequency = min(cluster_frequencies)

        idle_states = self.get_device_idle_states(cluster)
        new_specs = []
        for state in idle_states:
            for num_cpus in xrange(1, self.number_of_cpus[cluster] + 1):
                spec = old_specs[0].copy()
                spec.workload_name = self.idle_workload
                spec.workload_parameters = self.idle_workload_params
                spec.idle_state_id = state.id
                spec.idle_state_desc = state.desc
                spec.idle_state_index = state.index
                if not self.no_hotplug:
                    spec.runtime_parameters['{}_cores'.format(core)] = num_cpus
                spec.runtime_parameters['{}_frequency'.format(core)] = min_frequency
                if self.device.platform == 'chromeos':
                    spec.runtime_parameters['ui'] = 'off'
                spec.cluster = cluster
                spec.num_cpus = num_cpus
                spec.id = '{}_idle_{}_{}'.format(cluster, state.id, num_cpus)
                spec.label = 'idle_{}'.format(cluster)
                spec.number_of_iterations = old_specs[0].number_of_iterations
                spec.load(self.device, context.config.ext_loader)
                spec.workload.init_resources(context)
                spec.workload.validate()
                new_specs.append(spec)
        for old_spec in old_specs:
            if old_spec.workload_name not in ['sysbench', 'dhrystone']:
                raise ConfigError('Only sysbench and dhrystone workloads currently supported for energy_model generation.')
            for freq in cluster_frequencies:
                for num_cpus in xrange(1, self.number_of_cpus[cluster] + 1):
                    spec = old_spec.copy()
                    spec.runtime_parameters['{}_frequency'.format(core)] = freq
                    if not self.no_hotplug:
                        spec.runtime_parameters['{}_cores'.format(core)] = num_cpus
                    spec.runtime_parameters['ui'] = 'off'
                    spec.id = '{}_{}_{}'.format(cluster, num_cpus, freq)
                    spec.label = 'freq_{}_{}'.format(cluster, spec.label)
                    spec.workload_parameters['taskset_mask'] = list_to_mask(self.get_cpus(cluster))
                    spec.workload_parameters['threads'] = num_cpus
                    if old_spec.workload_name == 'sysbench':
                        # max_requests set to an arbitrary high values to make sure
                        # sysbench runs for full duriation even on highly
                        # performant cores.
                        spec.workload_parameters['max_requests'] = 10000000
                    spec.cluster = cluster
                    spec.num_cpus = num_cpus
                    spec.frequency = freq
                    spec.load(self.device, context.config.ext_loader)
                    spec.workload.init_resources(context)
                    spec.workload.validate()
                    new_specs.append(spec)
        return new_specs
Exemplo n.º 2
0
    def get_cluster_specs(self, old_specs, cluster, context):
        core = self.get_core_name(cluster)
        self.number_of_cpus[cluster] = sum([1 for c in self.device.core_names if c == core])

        cluster_frequencies = self.get_frequencies_param(cluster)
        if not cluster_frequencies:
            raise InstrumentError('Could not read available frequencies for {}'.format(core))
        min_frequency = min(cluster_frequencies)

        idle_states = self.get_device_idle_states(cluster)
        new_specs = []
        for state in idle_states:
            for num_cpus in xrange(1, self.number_of_cpus[cluster] + 1):
                spec = old_specs[0].copy()
                spec.workload_name = self.idle_workload
                spec.workload_parameters = self.idle_workload_params
                spec.idle_state_id = state.id
                spec.idle_state_desc = state.desc
                spec.idle_state_index = state.index
                if not self.no_hotplug:
                    spec.runtime_parameters['{}_cores'.format(core)] = num_cpus
                spec.runtime_parameters['{}_frequency'.format(core)] = min_frequency
                spec.runtime_parameters['ui'] = 'off'
                spec.cluster = cluster
                spec.num_cpus = num_cpus
                spec.id = '{}_idle_{}_{}'.format(cluster, state.id, num_cpus)
                spec.label = 'idle_{}'.format(cluster)
                spec.number_of_iterations = old_specs[0].number_of_iterations
                spec.load(self.device, context.config.ext_loader)
                spec.workload.init_resources(context)
                spec.workload.validate()
                new_specs.append(spec)
        for old_spec in old_specs:
            if old_spec.workload_name not in ['sysbench', 'dhrystone']:
                raise ConfigError('Only sysbench and dhrystone workloads currently supported for energy_model generation.')
            for freq in cluster_frequencies:
                for num_cpus in xrange(1, self.number_of_cpus[cluster] + 1):
                    spec = old_spec.copy()
                    spec.runtime_parameters['{}_frequency'.format(core)] = freq
                    if not self.no_hotplug:
                        spec.runtime_parameters['{}_cores'.format(core)] = num_cpus
                    spec.runtime_parameters['ui'] = 'off'
                    spec.id = '{}_{}_{}'.format(cluster, num_cpus, freq)
                    spec.label = 'freq_{}_{}'.format(cluster, spec.label)
                    spec.workload_parameters['taskset_mask'] = list_to_mask(self.get_cpus(cluster))
                    spec.workload_parameters['threads'] = num_cpus
                    if old_spec.workload_name == 'sysbench':
                        # max_requests set to an arbitrary high values to make sure
                        # sysbench runs for full duriation even on highly
                        # performant cores.
                        spec.workload_parameters['max_requests'] = 10000000
                    spec.cluster = cluster
                    spec.num_cpus = num_cpus
                    spec.frequency = freq
                    spec.load(self.device, context.config.ext_loader)
                    spec.workload.init_resources(context)
                    spec.workload.validate()
                    new_specs.append(spec)
        return new_specs
Exemplo n.º 3
0
 def reset(self):
     self.enable_all_cores()
     self.enable_all_idle_states()
     self.reset_cgroups()
     self.cpuset.move_all_tasks_to(self.measuring_cluster)
     server_process = 'adbd' if self.device.platform == 'android' else 'sshd'
     server_pids = self.device.get_pids_of(server_process)
     children_ps = [e for e in self.device.ps()
                    if e.ppid in server_pids and e.name != 'sshd']
     children_pids = [e.pid for e in children_ps]
     pids_to_move = server_pids + children_pids
     self.cpuset.root.add_tasks(pids_to_move)
     for pid in pids_to_move:
         self.device.execute('busybox taskset -p 0x{:x} {}'.format(list_to_mask(self.measuring_cpus), pid))
Exemplo n.º 4
0
 def reset(self):
     self.enable_all_cores()
     self.enable_all_idle_states()
     self.reset_cgroups()
     self.cpuset.move_all_tasks_to(self.measuring_cluster)
     server_process = 'adbd' if self.device.platform == 'android' else 'sshd'
     server_pids = self.device.get_pids_of(server_process)
     children_ps = [e for e in self.device.ps()
                    if e.ppid in server_pids and e.name != 'sshd']
     children_pids = [e.pid for e in children_ps]
     pids_to_move = server_pids + children_pids
     self.cpuset.root.add_tasks(pids_to_move)
     for pid in pids_to_move:
         self.device.execute('busybox taskset -p 0x{:x} {}'.format(list_to_mask(self.measuring_cpus), pid))
Exemplo n.º 5
0
    def invoke(self,
               binary,
               args=None,
               in_directory=None,
               on_cpus=None,
               background=False,
               as_root=False,
               timeout=30):
        """
        Executes the specified binary under the specified conditions.

        :binary: binary to execute. Must be present and executable on the device.
        :args: arguments to be passed to the binary. The can be either a list or
               a string.
        :in_directory:  execute the binary in the  specified directory. This must
                        be an absolute path.
        :on_cpus:  taskset the binary to these CPUs. This may be a single ``int`` (in which
                   case, it will be interpreted as the mask), a list of ``ints``, in which
                   case this will be interpreted as the list of cpus, or string, which
                   will be interpreted as a comma-separated list of cpu ranges, e.g.
                   ``"0,4-7"``.
        :background: If ``True``, a ``subprocess.Popen`` object will be returned straight
                     away. If ``False`` (the default), this will wait for the command to
                     terminate and return the STDOUT output
        :as_root: Specify whether the command should be run as root
        :timeout: If the invocation does not terminate within this number of seconds,
                  a ``TimeoutError`` exception will be raised. Set to ``None`` if the
                  invocation should not timeout.

        """
        command = binary
        if args:
            if isiterable(args):
                args = ' '.join(args)
            command = '{} {}'.format(command, args)
        if on_cpus:
            if isinstance(on_cpus, basestring):
                on_cpus = ranges_to_list(on_cpus)
            if isiterable(on_cpus):
                on_cpus = list_to_mask(on_cpus)  # pylint: disable=redefined-variable-type
            command = '{} taskset 0x{:x} {}'.format(self.busybox, on_cpus,
                                                    command)
        if in_directory:
            command = 'cd {} && {}'.format(in_directory, command)
        return self.execute(command,
                            background=background,
                            as_root=as_root,
                            timeout=timeout)
Exemplo n.º 6
0
    def invoke(self, binary, args=None, in_directory=None, on_cpus=None,
               background=False, as_root=False, timeout=30):
        """
        Executes the specified binary under the specified conditions.

        :binary: binary to execute. Must be present and executable on the device.
        :args: arguments to be passed to the binary. The can be either a list or
               a string.
        :in_directory:  execute the binary in the  specified directory. This must
                        be an absolute path.
        :on_cpus:  taskset the binary to these CPUs. This may be a single ``int`` (in which
                   case, it will be interpreted as the mask), a list of ``ints``, in which
                   case this will be interpreted as the list of cpus, or string, which
                   will be interpreted as a comma-separated list of cpu ranges, e.g.
                   ``"0,4-7"``.
        :background: If ``True``, a ``subprocess.Popen`` object will be returned straight
                     away. If ``False`` (the default), this will wait for the command to
                     terminate and return the STDOUT output
        :as_root: Specify whether the command should be run as root
        :timeout: If the invocation does not terminate within this number of seconds,
                  a ``TimeoutError`` exception will be raised. Set to ``None`` if the
                  invocation should not timeout.

        """
        command = binary
        if args:
            if isiterable(args):
                args = ' '.join(args)
            command = '{} {}'.format(command, args)
        if on_cpus:
            if isinstance(on_cpus, basestring):
                on_cpus = ranges_to_list(on_cpus)
            if isiterable(on_cpus):
                on_cpus = list_to_mask(on_cpus)  # pylint: disable=redefined-variable-type
            command = '{} taskset 0x{:x} {}'.format(self.busybox, on_cpus, command)
        if in_directory:
            command = 'cd {} && {}'.format(in_directory, command)
        return self.execute(command, background=background, as_root=as_root, timeout=timeout)