d48d7c8150
Add a command-line tool to apply task profile(s) to a given thread. Test: taskprofile $pid ProcessCapacityHigh; grep cpuset /proc/$pid/cgroup Test: taskprofile $pid ProcessCapacityNormal; grep cpuset /proc/$pid/cgroup Bug: 204808810 Signed-off-by: Suren Baghdasaryan <surenb@google.com> Change-Id: I1c13731f7a9a1161f36e27436ee104964aacbfd0
53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
/*
|
|
* Copyright (C) 2021 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.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <iostream>
|
|
|
|
#include <processgroup/processgroup.h>
|
|
|
|
[[noreturn]] static void usage(int exit_status) {
|
|
std::cerr << "Usage: " << getprogname() << " <tid> <profile> [... profileN]" << std::endl
|
|
<< " tid Thread ID to apply the profiles to." << std::endl
|
|
<< " profile Name of the profile to apply." << std::endl
|
|
<< "Applies listed profiles to the thread with specified ID." << std::endl
|
|
<< "Profiles are applied in the order specified in the command line." << std::endl
|
|
<< "If applying a profile fails, remaining profiles are ignored." << std::endl;
|
|
exit(exit_status);
|
|
}
|
|
|
|
int main(int argc, char* argv[]) {
|
|
if (argc < 3) {
|
|
usage(EXIT_FAILURE);
|
|
}
|
|
|
|
int tid = atoi(argv[1]);
|
|
if (tid == 0) {
|
|
std::cerr << "Invalid thread id" << std::endl;
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
for (int i = 2; i < argc; i++) {
|
|
if (!SetTaskProfiles(tid, {argv[i]})) {
|
|
std::cerr << "Failed to apply " << argv[i] << " profile" << std::endl;
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
std::cout << "Profile " << argv[i] << " is applied successfully!" << std::endl;
|
|
}
|
|
|
|
return 0;
|
|
}
|