3 * Copyright 2015, The Android Open Source Project
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
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13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
18 #ifndef SYSTEM_EXTRAS_PERFPROFD_CONFIG_H_
19 #define SYSTEM_EXTRAS_PERFPROFD_CONFIG_H_
29 // Average number of seconds between perf profile collections (if
30 // set to 100, then over time we want to see a perf profile
31 // collected every 100 seconds). The actual time within the interval
32 // for the collection is chosen randomly.
33 uint32_t collection_interval_in_s = 14400;
34 // Use the specified fixed seed for random number generation (unit
36 uint32_t use_fixed_seed = 0;
37 // For testing purposes, number of times to iterate through main
38 // loop. Value of zero indicates that we should loop forever.
39 uint32_t main_loop_iterations = 0;
41 // The pid of the process to profile. May be negative, in which case
42 // the whole system will be profiled.
45 // Destination directory (where to write profiles). This location
46 // chosen since it is accessible to the uploader service.
47 std::string destination_directory = "/data/misc/perfprofd";
48 // Config directory (where to read configs).
49 std::string config_directory = "/data/data/com.google.android.gms/files";
50 // Full path to 'perf' executable.
51 std::string perf_path = "/system/xbin/simpleperf";
53 // Desired sampling period (passed to perf -c option). Small
54 // sampling periods can perturb the collected profiles, so enforce
55 // min/max. A value of 0 means perf default. sampling_frequency
57 uint32_t sampling_period = 0;
58 // Desired sampling frequency (passed to perf -f option). A value of 0
59 // means using sampling_period or default.
60 uint32_t sampling_frequency = 0;
61 // Length of time to collect samples (number of seconds for 'perf
63 uint32_t sample_duration_in_s = 2;
65 // If this parameter is non-zero it will cause perfprofd to
66 // exit immediately if the build type is not userdebug or eng.
67 // Currently defaults to 1 (true).
68 bool only_debug_build = true;
70 // If the "mpdecision" service is running at the point we are ready
71 // to kick off a profiling run, then temporarily disable the service
72 // and hard-wire all cores on prior to the collection run, provided
73 // that the duration of the recording is less than or equal to the value of
74 // 'hardwire_cpus_max_duration'.
75 bool hardwire_cpus = true;
76 uint32_t hardwire_cpus_max_duration_in_s = 5;
78 // Maximum number of unprocessed profiles we can accumulate in the
79 // destination directory. Once we reach this limit, we continue
80 // to collect, but we just overwrite the most recent profile.
81 uint32_t max_unprocessed_profiles = 10;
83 // If set to 1, pass the -g option when invoking 'perf' (requests
84 // stack traces as opposed to flat profile).
85 bool stack_profile = false;
87 // For unit testing only: if set to 1, emit info messages on config
89 bool trace_config_read = false;
91 // Control collection of various additional profile tags
92 bool collect_cpu_utilization = true;
93 bool collect_charging_state = true;
94 bool collect_booting = true;
95 bool collect_camera_active = false;
97 // If true, use an ELF symbolizer to on-device symbolize.
98 bool use_elf_symbolizer = true;
100 // If true, use libz to compress the output proto.
101 bool compress = true;
103 // If true, send the proto to dropbox instead to a file.
104 bool send_to_dropbox = false;
106 // Sleep for the given number of seconds.
107 virtual void Sleep(size_t seconds) = 0;
109 // Should the profiling be stopped immediately?
110 virtual bool ShouldStopProfiling() {
114 // Is profiling enabled?
115 virtual bool IsProfilingEnabled() const = 0;
118 #endif // SYSTEM_EXTRAS_PERFPROFD_CONFIG_H_