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/*
* Copyright 2020 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.
*/
#undef LOG_TAG
#define LOG_TAG "gpuservice_unittest"
#define BPF_MAP_MAKE_VISIBLE_FOR_TESTING
#include <bpf/BpfMap.h>
#include <gpumem/GpuMem.h>
#include <gtest/gtest.h>
#include <perfetto/trace/trace.pb.h>
#include <tracing/GpuMemTracer.h>
#include "TestableGpuMem.h"
namespace android {
constexpr uint32_t TEST_MAP_SIZE = 10;
constexpr uint64_t TEST_GLOBAL_KEY = 0;
constexpr uint32_t TEST_GLOBAL_PID = 0;
constexpr uint64_t TEST_GLOBAL_VAL = 123;
constexpr uint32_t TEST_GLOBAL_GPU_ID = 0;
constexpr uint64_t TEST_PROC_KEY_1 = 1;
constexpr uint32_t TEST_PROC_PID_1 = 1;
constexpr uint64_t TEST_PROC_VAL_1 = 234;
constexpr uint32_t TEST_PROC_1_GPU_ID = 0;
constexpr uint64_t TEST_PROC_KEY_2 = 4294967298; // (1 << 32) + 2
constexpr uint32_t TEST_PROC_PID_2 = 2;
constexpr uint64_t TEST_PROC_VAL_2 = 345;
constexpr uint32_t TEST_PROC_2_GPU_ID = 1;
class GpuMemTracerTest : public testing::Test {
public:
GpuMemTracerTest() {
const ::testing::TestInfo* const test_info =
::testing::UnitTest::GetInstance()->current_test_info();
ALOGD("**** Setting up for %s.%s\n", test_info->test_case_name(), test_info->name());
}
~GpuMemTracerTest() {
const ::testing::TestInfo* const test_info =
::testing::UnitTest::GetInstance()->current_test_info();
ALOGD("**** Tearing down after %s.%s\n", test_info->test_case_name(), test_info->name());
}
void SetUp() override {
bpf::setrlimitForTest();
mGpuMem = std::make_shared<GpuMem>();
mGpuMemTracer = std::make_unique<GpuMemTracer>();
mGpuMemTracer->initializeForTest(mGpuMem);
mTestableGpuMem = TestableGpuMem(mGpuMem.get());
errno = 0;
mTestMap.resetMap(BPF_MAP_TYPE_HASH, TEST_MAP_SIZE, BPF_F_NO_PREALLOC);
EXPECT_EQ(0, errno);
EXPECT_TRUE(mTestMap.isValid());
}
int getTracerThreadCount() { return mGpuMemTracer->tracerThreadCount; }
std::vector<perfetto::protos::TracePacket> readGpuMemTotalPacketsBlocking(
perfetto::TracingSession* tracingSession) {
std::vector<char> raw_trace = tracingSession->ReadTraceBlocking();
perfetto::protos::Trace trace;
trace.ParseFromArray(raw_trace.data(), int(raw_trace.size()));
std::vector<perfetto::protos::TracePacket> packets;
for (const auto& packet : trace.packet()) {
if (!packet.has_gpu_mem_total_event()) {
continue;
}
packets.emplace_back(packet);
}
return packets;
}
std::shared_ptr<GpuMem> mGpuMem;
TestableGpuMem mTestableGpuMem;
std::unique_ptr<GpuMemTracer> mGpuMemTracer;
bpf::BpfMap<uint64_t, uint64_t> mTestMap;
};
static constexpr uint64_t getSizeForPid(uint32_t pid) {
switch (pid) {
case TEST_GLOBAL_PID:
return TEST_GLOBAL_VAL;
case TEST_PROC_PID_1:
return TEST_PROC_VAL_1;
case TEST_PROC_PID_2:
return TEST_PROC_VAL_2;
}
return 0;
}
static constexpr uint32_t getGpuIdForPid(uint32_t pid) {
switch (pid) {
case TEST_GLOBAL_PID:
return TEST_GLOBAL_GPU_ID;
case TEST_PROC_PID_1:
return TEST_PROC_1_GPU_ID;
case TEST_PROC_PID_2:
return TEST_PROC_2_GPU_ID;
}
return 0;
}
TEST_F(GpuMemTracerTest, traceInitialCountersAfterGpuMemInitialize) {
ASSERT_RESULT_OK(mTestMap.writeValue(TEST_GLOBAL_KEY, TEST_GLOBAL_VAL, BPF_ANY));
ASSERT_RESULT_OK(mTestMap.writeValue(TEST_PROC_KEY_1, TEST_PROC_VAL_1, BPF_ANY));
ASSERT_RESULT_OK(mTestMap.writeValue(TEST_PROC_KEY_2, TEST_PROC_VAL_2, BPF_ANY));
mTestableGpuMem.setGpuMemTotalMap(mTestMap);
mTestableGpuMem.setInitialized();
// Only 1 tracer thread should be existing for test.
EXPECT_EQ(getTracerThreadCount(), 1);
auto tracingSession = mGpuMemTracer->getTracingSessionForTest();
tracingSession->StartBlocking();
// Sleep for a short time to let the tracer thread finish its work
sleep(1);
tracingSession->StopBlocking();
// The test tracer thread should have finished its execution by now.
EXPECT_EQ(getTracerThreadCount(), 0);
auto packets = readGpuMemTotalPacketsBlocking(tracingSession.get());
EXPECT_EQ(packets.size(), 3);
const auto& packet0 = packets[0];
ASSERT_TRUE(packet0.has_timestamp());
ASSERT_TRUE(packet0.has_gpu_mem_total_event());
const auto& gpuMemEvent0 = packet0.gpu_mem_total_event();
ASSERT_TRUE(gpuMemEvent0.has_pid());
const auto& pid0 = gpuMemEvent0.pid();
ASSERT_TRUE(gpuMemEvent0.has_size());
EXPECT_EQ(gpuMemEvent0.size(), getSizeForPid(pid0));
ASSERT_TRUE(gpuMemEvent0.has_gpu_id());
EXPECT_EQ(gpuMemEvent0.gpu_id(), getGpuIdForPid(pid0));
const auto& packet1 = packets[1];
ASSERT_TRUE(packet1.has_timestamp());
ASSERT_TRUE(packet1.has_gpu_mem_total_event());
const auto& gpuMemEvent1 = packet1.gpu_mem_total_event();
ASSERT_TRUE(gpuMemEvent1.has_pid());
const auto& pid1 = gpuMemEvent1.pid();
ASSERT_TRUE(gpuMemEvent1.has_size());
EXPECT_EQ(gpuMemEvent1.size(), getSizeForPid(pid1));
ASSERT_TRUE(gpuMemEvent1.has_gpu_id());
EXPECT_EQ(gpuMemEvent1.gpu_id(), getGpuIdForPid(pid1));
const auto& packet2 = packets[2];
ASSERT_TRUE(packet2.has_timestamp());
ASSERT_TRUE(packet2.has_gpu_mem_total_event());
const auto& gpuMemEvent2 = packet2.gpu_mem_total_event();
ASSERT_TRUE(gpuMemEvent2.has_pid());
const auto& pid2 = gpuMemEvent2.pid();
ASSERT_TRUE(gpuMemEvent2.has_size());
EXPECT_EQ(gpuMemEvent2.size(), getSizeForPid(pid2));
ASSERT_TRUE(gpuMemEvent2.has_gpu_id());
EXPECT_EQ(gpuMemEvent2.gpu_id(), getGpuIdForPid(pid2));
}
TEST_F(GpuMemTracerTest, noTracingWithoutGpuMemInitialize) {
// Only 1 tracer thread should be existing for test.
EXPECT_EQ(getTracerThreadCount(), 1);
auto tracingSession = mGpuMemTracer->getTracingSessionForTest();
tracingSession->StartBlocking();
// Sleep for a short time to let the tracer thread finish its work
sleep(1);
tracingSession->StopBlocking();
// The test tracer thread should have finished its execution by now.
EXPECT_EQ(getTracerThreadCount(), 0);
auto packets = readGpuMemTotalPacketsBlocking(tracingSession.get());
EXPECT_EQ(packets.size(), 0);
}
} // namespace android
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