mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-06-12 01:23:33 +00:00
7a7d547381
Previously, the trace event buffer was cleared after *all* tests completed. In order to avoid allocating a ton of space to hold traces, this patch factors the trace event recording so that the buffer is processed and reset at the end of each test trial. This patch also prepares for the future where trace events will be processed at the end of each trial to compute additional metrics. Bug: dawn:208 Change-Id: If2ed193ee47794c666df9f0b369ec1ce660b177f Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/12780 Commit-Queue: Austin Eng <enga@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
94 lines
3.5 KiB
C++
94 lines
3.5 KiB
C++
// Copyright 2019 The Dawn Authors
|
|
//
|
|
// 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 "tests/perf_tests/DawnPerfTestPlatform.h"
|
|
|
|
#include "dawn_platform/tracing/TraceEvent.h"
|
|
#include "tests/perf_tests/DawnPerfTest.h"
|
|
#include "utils/Timer.h"
|
|
|
|
namespace {
|
|
|
|
struct TraceCategory {
|
|
unsigned char enabled;
|
|
const char* name;
|
|
};
|
|
|
|
constexpr TraceCategory gTraceCategories[2] = {
|
|
// TODO(enga): Remove the use of this macro, but keep it disabled by default in Chromium.
|
|
{1, TRACE_DISABLED_BY_DEFAULT("gpu.dawn")},
|
|
{1, "dawn.perf_test"},
|
|
};
|
|
|
|
} // anonymous namespace
|
|
|
|
DawnPerfTestPlatform::DawnPerfTestPlatform()
|
|
: dawn_platform::Platform(), mTimer(utils::CreateTimer()) {
|
|
}
|
|
|
|
DawnPerfTestPlatform::~DawnPerfTestPlatform() = default;
|
|
|
|
const unsigned char* DawnPerfTestPlatform::GetTraceCategoryEnabledFlag(const char* name) {
|
|
for (const TraceCategory& category : gTraceCategories) {
|
|
if (strcmp(category.name, name) == 0) {
|
|
return &category.enabled;
|
|
}
|
|
}
|
|
|
|
constexpr static unsigned char kZero = 0;
|
|
return &kZero;
|
|
}
|
|
|
|
double DawnPerfTestPlatform::MonotonicallyIncreasingTime() {
|
|
// Move the time origin to the first call to this function, to avoid generating
|
|
// unnecessarily large timestamps.
|
|
static double origin = mTimer->GetAbsoluteTime();
|
|
return mTimer->GetAbsoluteTime() - origin;
|
|
}
|
|
|
|
// TODO(enga): Simplify this API.
|
|
uint64_t DawnPerfTestPlatform::AddTraceEvent(char phase,
|
|
const unsigned char* categoryGroupEnabled,
|
|
const char* name,
|
|
uint64_t id,
|
|
double timestamp,
|
|
int numArgs,
|
|
const char** argNames,
|
|
const unsigned char* argTypes,
|
|
const uint64_t* argValues,
|
|
unsigned char flags) {
|
|
if (!mRecordTraceEvents) {
|
|
return 0;
|
|
}
|
|
|
|
// Discover the category name based on categoryGroupEnabled. This flag comes from the first
|
|
// parameter of TraceCategory, and corresponds to one of the entries in gTraceCategories.
|
|
static_assert(offsetof(TraceCategory, enabled) == 0,
|
|
"|enabled| must be the first field of the TraceCategory class.");
|
|
const TraceCategory* category = reinterpret_cast<const TraceCategory*>(categoryGroupEnabled);
|
|
|
|
mTraceEventBuffer.emplace_back(phase, category->name, name, id, timestamp);
|
|
return static_cast<uint64_t>(mTraceEventBuffer.size());
|
|
}
|
|
|
|
void DawnPerfTestPlatform::EnableTraceEventRecording(bool enable) {
|
|
mRecordTraceEvents = enable;
|
|
}
|
|
|
|
std::vector<DawnPerfTestPlatform::TraceEvent> DawnPerfTestPlatform::AcquireTraceEventBuffer() {
|
|
std::vector<DawnPerfTestPlatform::TraceEvent> buffer = mTraceEventBuffer;
|
|
mTraceEventBuffer.clear();
|
|
return buffer;
|
|
}
|