mirror of
https://gitlab.freedesktop.org/mesa/mesa.git
synced 2026-05-24 04:08:10 +02:00
339d80d5f2
Calling sched_setscheduler twice every sample period has high CPU
overhead. For intel and panfrost, their dump_perfcnt is preemptible and
they don't need the scheduler change.
For freedreno, simply makes the main thread RT at all time. This solves
most of the cpu overhead issue.
v2: removed pthread_t param and just change the scheduler for the
calling thread
Acked-by: Rob Clark <robdclark@chromium.org> (v1)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19668>
37 lines
996 B
C++
37 lines
996 B
C++
/*
|
|
* Copyright © 2019-2020 Collabora, Ltd.
|
|
* Author: Antonio Caggiano <antonio.caggiano@collabora.com>
|
|
* Author: Robert Beckett <bob.beckett@collabora.com>
|
|
* Author: Corentin Noël <corentin.noel@collabora.com>
|
|
*
|
|
* SPDX-License-Identifier: MIT
|
|
*/
|
|
|
|
#include <cstdlib>
|
|
|
|
#include "pps_datasource.h"
|
|
|
|
int main(int argc, const char **argv)
|
|
{
|
|
using namespace pps;
|
|
|
|
// Connects to the system tracing service
|
|
perfetto::TracingInitArgs args;
|
|
args.backends = perfetto::kSystemBackend;
|
|
perfetto::Tracing::Initialize(args);
|
|
|
|
std::string driver_name =
|
|
(argc > 1) ? Driver::find_driver_name(argv[1]) : Driver::default_driver_name();
|
|
GpuDataSource::register_data_source(driver_name);
|
|
|
|
const auto &driver = Driver::get_supported_drivers().at(driver_name);
|
|
if (!driver->is_dump_perfcnt_preemptible())
|
|
make_thread_rt();
|
|
|
|
while (true) {
|
|
GpuDataSource::wait_started();
|
|
GpuDataSource::Trace(GpuDataSource::trace_callback);
|
|
}
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|