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/*
*
* Copyright 2015, The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SYSTEM_EXTRAS_PERFPROFD_CONFIG_H_
#define SYSTEM_EXTRAS_PERFPROFD_CONFIG_H_
#include <cstdint>
#include <string>
#include <vector>
struct Config {
virtual ~Config() {}
// Average number of seconds between perf profile collections (if
// set to 100, then over time we want to see a perf profile
// collected every 100 seconds). The actual time within the interval
// for the collection is chosen randomly.
uint32_t collection_interval_in_s = 14400;
// Use the specified fixed seed for random number generation (unit
// testing)
uint32_t use_fixed_seed = 0;
// For testing purposes, number of times to iterate through main
// loop. Value of zero indicates that we should loop forever.
uint32_t main_loop_iterations = 0;
// The pid of the process to profile. May be negative, in which case
// the whole system will be profiled.
int32_t process = -1;
// Destination directory (where to write profiles).
std::string destination_directory = "/data/misc/perfprofd";
// Config directory (where to read configs).
std::string config_directory = "/data/data/com.google.android.gms/files";
// Full path to 'perf' executable.
std::string perf_path = "/system/bin/simpleperf";
// Desired sampling period (passed to perf -c option). Small
// sampling periods can perturb the collected profiles, so enforce
// min/max. A value of 0 means perf default. sampling_frequency
// takes priority.
uint32_t sampling_period = 0;
// Desired sampling frequency (passed to perf -f option). A value of 0
// means using sampling_period or default.
uint32_t sampling_frequency = 0;
// Length of time to collect samples (number of seconds for 'perf
// record -a' run).
uint32_t sample_duration_in_s = 2;
// If this parameter is non-zero it will cause perfprofd to
// exit immediately if the build type is not userdebug or eng.
// Currently defaults to 1 (true).
bool only_debug_build = true;
// If the "mpdecision" service is running at the point we are ready
// to kick off a profiling run, then temporarily disable the service
// and hard-wire all cores on prior to the collection run, provided
// that the duration of the recording is less than or equal to the value of
// 'hardwire_cpus_max_duration'.
bool hardwire_cpus = true;
uint32_t hardwire_cpus_max_duration_in_s = 5;
// Maximum number of unprocessed profiles we can accumulate in the
// destination directory. Once we reach this limit, we continue
// to collect, but we just overwrite the most recent profile.
uint32_t max_unprocessed_profiles = 10;
// If set to 1, pass the -g option when invoking 'perf' (requests
// stack traces as opposed to flat profile).
bool stack_profile = false;
// For unit testing only: if set to 1, emit info messages on config
// file parsing.
bool trace_config_read = false;
// Control collection of various additional profile tags
bool collect_cpu_utilization = true;
bool collect_charging_state = true;
bool collect_booting = true;
bool collect_camera_active = false;
// If true, use an ELF symbolizer to on-device symbolize.
bool use_elf_symbolizer = true;
// Whether to symbolize everything. If false, objects with build ID will be skipped.
bool symbolize_everything = false;
// If true, use libz to compress the output proto.
bool compress = true;
// If true, send the proto to dropbox instead to a file.
bool send_to_dropbox = false;
// Whether to fail or strip unsupported events.
bool fail_on_unsupported_events = false;
struct PerfCounterConfigElem {
std::vector<std::string> events;
bool group;
uint32_t sampling_period;
};
std::vector<PerfCounterConfigElem> event_config;
// Sleep for the given number of seconds.
virtual void Sleep(size_t seconds) = 0;
// Should the profiling be stopped immediately?
virtual bool ShouldStopProfiling() {
return false;
}
// Is profiling enabled?
virtual bool IsProfilingEnabled() const = 0;
};
#endif // SYSTEM_EXTRAS_PERFPROFD_CONFIG_H_
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