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- // Licensed to the Apache Software Foundation (ASF) under one
- // or more contributor license agreements. See the NOTICE file
- // distributed with this work for additional information
- // regarding copyright ownership. The ASF licenses this file
- // to you 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.
- // brpc - A framework to host and access services throughout Baidu.
- // Date: 2015/01/20 19:01:06
- #include <gtest/gtest.h>
- #include "butil/gperftools_profiler.h"
- #include "butil/third_party/snappy/snappy.h"
- #include "butil/macros.h"
- #include "butil/iobuf.h"
- #include "butil/time.h"
- #include "snappy_message.pb.h"
- #include "brpc/policy/snappy_compress.h"
- #include "brpc/policy/gzip_compress.h"
- typedef bool (*Compress)(const google::protobuf::Message&, butil::IOBuf*);
- typedef bool (*Decompress)(const butil::IOBuf&, google::protobuf::Message*);
- inline void CompressMessage(const char* method_name,
- int num, snappy_message::SnappyMessageProto& msg,
- int len, Compress compress, Decompress decompress) {
- butil::Timer timer;
- size_t compression_length = 0;
- int64_t total_compress_time = 0;
- int64_t total_decompress_time = 0;
- snappy_message::SnappyMessageProto new_msg;
- for (int index = 0; index < num; index++) {
- butil::IOBuf buf;
- timer.start();
- ASSERT_TRUE(compress(msg, &buf));
- timer.stop();
- total_compress_time += timer.n_elapsed();
- compression_length += buf.length();
- timer.start();
- ASSERT_TRUE(decompress(buf, &new_msg));
- timer.stop();
- total_decompress_time += timer.n_elapsed();
- }
- float compression_ratio = compression_length / (((double)num) * len);
- printf("%20s%20d%20f%20f%30f%30f%29f%%\n", method_name, len,
- total_compress_time/1000.0/num, total_decompress_time/1000.0/num,
- 1000000000.0/1024/1024*num*len/total_compress_time,
- 1000000000.0/1024/1024*num*len/total_decompress_time,
- compression_ratio*100.0);
- }
- static bool SnappyDecompressIOBuf(char* input, size_t len, butil::IOBuf* buf) {
- size_t decompress_length;
- if (!butil::snappy::GetUncompressedLength(input, len, &decompress_length)) {
- return false;
- }
- char* output = new char[decompress_length];
- if (!butil::snappy::RawUncompress(input, len, output)) {
- delete [] output;
- return false;
- }
- buf->append(output, decompress_length);
- delete [] output;
- return true;
- }
- class test_compress_method : public testing::Test {};
- TEST_F(test_compress_method, snappy) {
- snappy_message::SnappyMessageProto old_msg;
- old_msg.set_text("Hello World!");
- old_msg.add_numbers(2);
- old_msg.add_numbers(7);
- old_msg.add_numbers(45);
- butil::IOBuf buf;
- ASSERT_TRUE(brpc::policy::SnappyCompress(old_msg, &buf));
- snappy_message::SnappyMessageProto new_msg;
- ASSERT_TRUE(brpc::policy::SnappyDecompress(buf, &new_msg));
- ASSERT_TRUE(strcmp(new_msg.text().c_str(), "Hello World!") == 0);
- ASSERT_TRUE(new_msg.numbers_size() == 3);
- ASSERT_EQ(new_msg.numbers(0), 2);
- ASSERT_EQ(new_msg.numbers(1), 7);
- ASSERT_EQ(new_msg.numbers(2), 45);
- }
- TEST_F(test_compress_method, snappy_iobuf) {
- butil::IOBuf buf, output_buf, check_buf;
- const char* test = "this is a test";
- buf.append(test, strlen(test));
- ASSERT_TRUE(brpc::policy::SnappyCompress(buf, &output_buf));
- ASSERT_TRUE(brpc::policy::SnappyDecompress(output_buf, &check_buf));
- ASSERT_STREQ(check_buf.to_string().c_str(), test);
- }
- TEST_F(test_compress_method, mass_snappy) {
- snappy_message::SnappyMessageProto old_msg;
- int len = 12435;
- char* text = new char[len + 1];
- for (int j = 0; j < len;) {
- for (int i = 0; i < 26 && j < len; i++) {
- text[j++] = 'a' + i;
- }
- for (int i = 0; i < 10 && j < len; i++) {
- text[j++] = '0' + i;
- }
- }
- text[len] = '\0';
- old_msg.set_text(text);
- old_msg.add_numbers(2);
- old_msg.add_numbers(7);
- old_msg.add_numbers(45);
- butil::IOBuf buf;
- ProfilerStart("./snappy_compress.prof");
- ASSERT_TRUE(brpc::policy::SnappyCompress(old_msg, &buf));
- snappy_message::SnappyMessageProto new_msg;
- ASSERT_TRUE(brpc::policy::SnappyDecompress(buf, &new_msg));
- ProfilerStop();
- ASSERT_TRUE(strcmp(new_msg.text().c_str(), text) == 0);
- ASSERT_TRUE(new_msg.numbers_size() == 3);
- ASSERT_EQ(new_msg.numbers(0), 2);
- ASSERT_EQ(new_msg.numbers(1), 7);
- ASSERT_EQ(new_msg.numbers(2), 45);
- delete [] text;
- }
- TEST_F(test_compress_method, snappy_test) {
- int len = 200;
- char* text = new char[len + 1];
- for (int j = 0; j < len;) {
- for (int i = 0; i < 26 && j < len; i++) {
- text[j++] = 'a' + i;
- }
- for (int i = 0; i < 10 && j < len; i++) {
- text[j++] = '0' + i;
- }
- }
- text[len] = '\0';
- butil::IOBuf buf;
- std::string output;
- std::string append_string;
- ASSERT_TRUE(butil::snappy::Compress(text, len, &output));
- size_t com_len1 = output.size();
- const char* s_text = "123456";
- ASSERT_TRUE(butil::snappy::Compress(s_text, strlen(s_text), &append_string));
- output.append(append_string);
- std::string uncompress_str;
- std::string uncompress_str_t;
- char* ptr = const_cast<char*>(output.c_str());
- ASSERT_TRUE(butil::snappy::Uncompress(ptr, com_len1, &uncompress_str));
- ptr = const_cast<char*>(append_string.c_str());
- ASSERT_TRUE(butil::snappy::Uncompress(ptr, strlen(ptr), &uncompress_str_t));
- delete [] text;
- }
- TEST_F(test_compress_method, throughput_compare) {
- int len = 0;
- int len_subs[] = {128, 1024, 16*1024, 32*1024, 512*1024};
- butil::Timer timer;
- printf("%20s%20s%20s%20s%30s%30s%30s\n", "Compress method", "Compress size(B)",
- "Compress time(us)", "Decompress time(us)", "Compress throughput(MB/s)",
- "Decompress throughput(MB/s)", "Compress ratio");
- for (size_t num = 0; num < ARRAY_SIZE(len_subs); ++num) {
- len = len_subs[num];
- snappy_message::SnappyMessageProto old_msg;
- char* text = new char[len + 1];
- for (int j = 0; j < len;) {
- for (int i = 0; i < 26 && j < len; i++) {
- text[j++] = 'a' + i;
- }
- for (int i = 0; i < 10 && j < len; i++) {
- text[j++] = '0' + i;
- }
- }
- text[len] = '\0';
- old_msg.set_text(text);
- int k = std::min(32*1024*1024/len, 5000);
- CompressMessage("Snappy", k, old_msg, len,
- brpc::policy::SnappyCompress,
- brpc::policy::SnappyDecompress);
- CompressMessage("Gzip", k, old_msg, len,
- brpc::policy::GzipCompress,
- brpc::policy::GzipDecompress);
- CompressMessage("Zlib", k, old_msg, len,
- brpc::policy::ZlibCompress,
- brpc::policy::ZlibDecompress);
- printf("\n");
- delete [] text;
- }
- }
- TEST_F(test_compress_method, throughput_compare_complete_random) {
- char str_table[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
- int rand_num = 0;
- int len = 0;
- int len_subs[] = {128, 1024, 16*1024, 32*1024, 512 * 1024};
- butil::Timer timer;
- printf("%20s%20s%20s%20s%30s%30s%30s\n", "Compress method", "Compress size(B)",
- "Compress time(us)", "Decompress time(us)", "Compress throughput(MB/s)",
- "Decompress throughput(MB/s)", "Compress ratio");
- for (size_t num = 0; num < ARRAY_SIZE(len_subs); ++num) {
- len = len_subs[num];
- snappy_message::SnappyMessageProto old_msg;
- char* text = new char[len + 1];
- for (int j = 0; j < len;) {
- rand_num = rand()%62;
- text[j++] = str_table[rand_num];
- }
- text[len] = '\0';
- old_msg.set_text(text);
- int k = std::min(32*1024*1024/len, 5000);
- CompressMessage("Snappy", k, old_msg, len,
- brpc::policy::SnappyCompress,
- brpc::policy::SnappyDecompress);
- CompressMessage("Gzip", k, old_msg, len,
- brpc::policy::GzipCompress,
- brpc::policy::GzipDecompress);
- CompressMessage("Zlib", k, old_msg, len,
- brpc::policy::ZlibCompress,
- brpc::policy::ZlibDecompress);
- printf("\n");
- delete [] text;
- }
- }
- TEST_F(test_compress_method, mass_snappy_iobuf) {
- butil::IOBuf buf;
- int len = 782;
- char* text = new char[len + 1];
- for (int j = 0; j < len;) {
- for (int i = 0; i < 26 && j < len; i++) {
- text[j++] = 'a' + i;
- }
- }
- text[len] = '\0';
- buf.append(text, strlen(text));
- butil::IOBuf output_buf, check_buf;
- ASSERT_TRUE(brpc::policy::SnappyCompress(buf, &output_buf));
- const std::string output_str = output_buf.to_string();
- len = output_str.size();
- ASSERT_TRUE(SnappyDecompressIOBuf(const_cast<char*>(output_str.data()), len, &check_buf));
- std::string check_str = check_buf.to_string();
- ASSERT_TRUE(strcmp(check_str.c_str(), text) == 0);
- delete [] text;
- }
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