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/*
* Copyright (C) 2016 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 <gtest/gtest.h>
#include <android-base/file.h>
#include <android-base/strings.h>
#include <memory>
#include "command.h"
#include "get_test_data.h"
#include "record.h"
#include "record_file.h"
#include "test_util.h"
static std::unique_ptr<Command> KmemCmd() {
return CreateCommandInstance("kmem");
}
struct ReportResult {
bool success;
std::string content;
std::vector<std::string> lines;
};
static void KmemReportRawFile(const std::string& perf_data,
const std::vector<std::string>& additional_args,
ReportResult* result) {
result->success = false;
TemporaryFile tmp_file;
std::vector<std::string> args = {"report", "-i", perf_data, "-o",
tmp_file.path};
args.insert(args.end(), additional_args.begin(), additional_args.end());
ASSERT_TRUE(KmemCmd()->Run(args));
ASSERT_TRUE(android::base::ReadFileToString(tmp_file.path, &result->content));
ASSERT_TRUE(!result->content.empty());
std::vector<std::string> raw_lines =
android::base::Split(result->content, "\n");
result->lines.clear();
for (const auto& line : raw_lines) {
std::string s = android::base::Trim(line);
if (!s.empty()) {
result->lines.push_back(s);
}
}
ASSERT_GE(result->lines.size(), 2u);
result->success = true;
}
static void KmemReportFile(const std::string& perf_data,
const std::vector<std::string>& additional_args,
ReportResult* result) {
KmemReportRawFile(GetTestData(perf_data), additional_args, result);
}
#if defined(__linux__)
#include "environment.h"
static bool RunKmemRecordCmd(std::vector<std::string> v,
const char* output_file = nullptr) {
std::unique_ptr<TemporaryFile> tmpfile;
std::string out_file;
if (output_file != nullptr) {
out_file = output_file;
} else {
tmpfile.reset(new TemporaryFile);
out_file = tmpfile->path;
}
v.insert(v.begin(), "record");
v.insert(v.end(), {"-o", out_file, "sleep", SLEEP_SEC});
return KmemCmd()->Run(v);
}
TEST(kmem_cmd, record_slab) {
TEST_IN_ROOT(ASSERT_TRUE(RunKmemRecordCmd({"--slab"})));
}
TEST(kmem_cmd, record_fp_callchain_sampling) {
TEST_IN_ROOT(ASSERT_TRUE(RunKmemRecordCmd({"--slab", "-g"})));
TEST_IN_ROOT(ASSERT_TRUE(RunKmemRecordCmd({"--slab", "--call-graph", "fp"})));
}
TEST(kmem_cmd, record_and_report) {
TemporaryFile tmp_file;
TEST_IN_ROOT({
ASSERT_TRUE(RunKmemRecordCmd({"--slab"}, tmp_file.path));
ReportResult result;
KmemReportRawFile(tmp_file.path, {}, &result);
ASSERT_TRUE(result.success);
});
}
TEST(kmem_cmd, record_and_report_callgraph) {
TemporaryFile tmp_file;
TEST_IN_ROOT({
ASSERT_TRUE(RunKmemRecordCmd({"--slab", "-g"}, tmp_file.path));
ReportResult result;
KmemReportRawFile(tmp_file.path, {"-g"}, &result);
ASSERT_TRUE(result.success);
});
}
#endif
TEST(kmem_cmd, report) {
ReportResult result;
KmemReportFile(PERF_DATA_WITH_KMEM_SLAB_CALLGRAPH_RECORD, {}, &result);
ASSERT_TRUE(result.success);
ASSERT_NE(result.content.find("kmem:kmalloc"), std::string::npos);
ASSERT_NE(result.content.find("__alloc_skb"), std::string::npos);
}
TEST(kmem_cmd, report_all_sort_options) {
ReportResult result;
KmemReportFile(
PERF_DATA_WITH_KMEM_SLAB_CALLGRAPH_RECORD,
{"--slab-sort",
"hit,caller,ptr,bytes_req,bytes_alloc,fragment,gfp_flags,pingpong"},
&result);
ASSERT_TRUE(result.success);
ASSERT_NE(result.content.find("Ptr"), std::string::npos);
ASSERT_NE(result.content.find("GfpFlags"), std::string::npos);
}
TEST(kmem_cmd, report_callgraph) {
ReportResult result;
KmemReportFile(PERF_DATA_WITH_KMEM_SLAB_CALLGRAPH_RECORD, {"-g"}, &result);
ASSERT_TRUE(result.success);
ASSERT_NE(result.content.find("kmem:kmalloc"), std::string::npos);
ASSERT_NE(result.content.find("__alloc_skb"), std::string::npos);
ASSERT_NE(result.content.find("system_call_fastpath"), std::string::npos);
}
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