2013-10-24 02:31:12 +02:00
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#include <cstdio>
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#include <vector>
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#include <atomic>
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#include "rocksdb/env.h"
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#include "util/blob_store.h"
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#include "util/testutil.h"
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#define KB 1024LL
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#define MB 1024*1024LL
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2013-10-29 01:42:33 +01:00
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// BlobStore does costly asserts to make sure it's running correctly, which
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// significantly impacts benchmark runtime.
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// NDEBUG will compile out those asserts.
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#define NDEBUG
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2013-10-24 02:31:12 +02:00
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using namespace rocksdb;
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using namespace std;
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// used by all threads
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uint64_t timeout_sec;
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Env *env;
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BlobStore* bs;
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static std::string RandomString(Random* rnd, uint64_t len) {
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std::string r;
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test::RandomString(rnd, len, &r);
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return r;
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}
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struct Result {
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uint32_t writes;
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uint32_t reads;
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uint32_t deletes;
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uint64_t data_written;
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uint64_t data_read;
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void print() {
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printf("Total writes = %u\n", writes);
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printf("Total reads = %u\n", reads);
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printf("Total deletes = %u\n", deletes);
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printf("Write throughput = %lf MB/s\n",
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(double)data_written / (1024*1024.0) / timeout_sec);
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printf("Read throughput = %lf MB/s\n",
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(double)data_read / (1024*1024.0) / timeout_sec);
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printf("Total throughput = %lf MB/s\n",
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(double)(data_read + data_written) / (1024*1024.0) / timeout_sec);
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}
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Result() {
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writes = reads = deletes = data_read = data_written = 0;
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}
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Result (uint32_t writes, uint32_t reads, uint32_t deletes,
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uint64_t data_written, uint64_t data_read) :
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writes(writes), reads(reads), deletes(deletes),
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data_written(data_written), data_read(data_read) {}
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};
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Result operator + (const Result &a, const Result &b) {
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return Result(a.writes + b.writes, a.reads + b.reads,
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a.deletes + b.deletes, a.data_written + b.data_written,
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a.data_read + b.data_read);
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}
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struct WorkerThread {
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uint64_t data_size_from, data_size_to;
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double read_ratio;
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uint64_t working_set_size; // start deleting once you reach this
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Result result;
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atomic<bool> stopped;
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WorkerThread(uint64_t data_size_from, uint64_t data_size_to,
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double read_ratio, uint64_t working_set_size) :
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data_size_from(data_size_from), data_size_to(data_size_to),
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read_ratio(read_ratio), working_set_size(working_set_size),
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stopped(false) {}
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WorkerThread(const WorkerThread& wt) :
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data_size_from(wt.data_size_from), data_size_to(wt.data_size_to),
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read_ratio(wt.read_ratio), working_set_size(wt.working_set_size),
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stopped(false) {}
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};
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static void WorkerThreadBody(void* arg) {
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WorkerThread* t = reinterpret_cast<WorkerThread*>(arg);
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Random rnd(5);
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string buf;
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vector<pair<Blob, uint64_t>> blobs;
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vector<string> random_strings;
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for (int i = 0; i < 10; ++i) {
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random_strings.push_back(RandomString(&rnd, t->data_size_to));
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}
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uint64_t total_size = 0;
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uint64_t start_micros = env->NowMicros();
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while (env->NowMicros() - start_micros < timeout_sec * 1000 * 1000) {
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if (blobs.size() && rand() < RAND_MAX * t->read_ratio) {
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// read
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int bi = rand() % blobs.size();
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Status s = bs->Get(blobs[bi].first, &buf);
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assert(s.ok());
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t->result.data_read += buf.size();
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t->result.reads++;
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} else {
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// write
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uint64_t size = rand() % (t->data_size_to - t->data_size_from) +
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t->data_size_from;
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total_size += size;
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string put_str = random_strings[rand() % random_strings.size()];
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blobs.push_back(make_pair(Blob(), size));
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Status s = bs->Put(Slice(put_str.data(), size), &blobs.back().first);
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assert(s.ok());
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t->result.data_written += size;
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t->result.writes++;
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}
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while (total_size >= t->working_set_size) {
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// delete random
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int bi = rand() % blobs.size();
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total_size -= blobs[bi].second;
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bs->Delete(blobs[bi].first);
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blobs.erase(blobs.begin() + bi);
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t->result.deletes++;
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}
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}
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t->stopped.store(true);
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}
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2013-10-29 00:31:44 +01:00
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Result StartBenchmark(vector<WorkerThread*>& config) {
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2013-10-24 02:31:12 +02:00
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for (auto w : config) {
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2013-10-29 00:31:44 +01:00
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env->StartThread(WorkerThreadBody, w);
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2013-10-24 02:31:12 +02:00
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}
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Result result;
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for (auto w : config) {
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2013-10-29 00:31:44 +01:00
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while (!w->stopped.load());
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result = result + w->result;
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}
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for (auto w : config) {
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delete w;
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2013-10-24 02:31:12 +02:00
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}
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delete bs;
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return result;
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}
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2013-10-29 00:31:44 +01:00
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vector<WorkerThread*> SetupBenchmarkBalanced() {
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2013-10-24 02:31:12 +02:00
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string test_path;
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env->GetTestDirectory(&test_path);
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test_path.append("/blob_store");
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// config start
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uint32_t block_size = 16*KB;
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uint32_t file_size = 1*MB;
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double read_write_ratio = 0.5;
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uint64_t data_read_from = 16*KB;
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uint64_t data_read_to = 32*KB;
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int number_of_threads = 10;
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uint64_t working_set_size = 5*MB;
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timeout_sec = 5;
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// config end
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bs = new BlobStore(test_path, block_size, file_size / block_size, 10000, env);
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2013-10-29 00:31:44 +01:00
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vector <WorkerThread*> config;
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2013-10-24 02:31:12 +02:00
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for (int i = 0; i < number_of_threads; ++i) {
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2013-10-29 00:31:44 +01:00
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config.push_back(new WorkerThread(data_read_from,
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data_read_to,
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read_write_ratio,
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working_set_size));
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2013-10-24 02:31:12 +02:00
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};
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return config;
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}
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2013-10-29 00:31:44 +01:00
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vector<WorkerThread*> SetupBenchmarkWriteHeavy() {
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2013-10-24 02:31:12 +02:00
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string test_path;
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env->GetTestDirectory(&test_path);
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test_path.append("/blob_store");
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// config start
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uint32_t block_size = 16*KB;
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uint32_t file_size = 1*MB;
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double read_write_ratio = 0.1;
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uint64_t data_read_from = 16*KB;
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uint64_t data_read_to = 32*KB;
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int number_of_threads = 10;
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uint64_t working_set_size = 5*MB;
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timeout_sec = 5;
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// config end
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bs = new BlobStore(test_path, block_size, file_size / block_size, 10000, env);
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2013-10-29 00:31:44 +01:00
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vector <WorkerThread*> config;
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for (int i = 0; i < number_of_threads; ++i) {
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2013-10-29 00:31:44 +01:00
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config.push_back(new WorkerThread(data_read_from,
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data_read_to,
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read_write_ratio,
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working_set_size));
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2013-10-24 02:31:12 +02:00
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};
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return config;
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}
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2013-10-29 00:31:44 +01:00
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vector<WorkerThread*> SetupBenchmarkReadHeavy() {
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2013-10-24 02:31:12 +02:00
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string test_path;
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env->GetTestDirectory(&test_path);
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test_path.append("/blob_store");
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// config start
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uint32_t block_size = 16*KB;
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uint32_t file_size = 1*MB;
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double read_write_ratio = 0.9;
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uint64_t data_read_from = 16*KB;
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uint64_t data_read_to = 32*KB;
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int number_of_threads = 10;
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uint64_t working_set_size = 5*MB;
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timeout_sec = 5;
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// config end
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bs = new BlobStore(test_path, block_size, file_size / block_size, 10000, env);
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2013-10-29 00:31:44 +01:00
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vector <WorkerThread*> config;
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2013-10-24 02:31:12 +02:00
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for (int i = 0; i < number_of_threads; ++i) {
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2013-10-29 00:31:44 +01:00
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config.push_back(new WorkerThread(data_read_from,
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data_read_to,
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read_write_ratio,
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working_set_size));
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2013-10-24 02:31:12 +02:00
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};
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return config;
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}
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int main(int argc, const char** argv) {
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srand(33);
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env = Env::Default();
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{
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printf("--- Balanced read/write benchmark ---\n");
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2013-10-29 00:31:44 +01:00
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vector <WorkerThread*> config = SetupBenchmarkBalanced();
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2013-10-24 02:31:12 +02:00
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Result r = StartBenchmark(config);
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r.print();
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}
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{
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printf("--- Write heavy benchmark ---\n");
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2013-10-29 00:31:44 +01:00
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vector <WorkerThread*> config = SetupBenchmarkWriteHeavy();
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2013-10-24 02:31:12 +02:00
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Result r = StartBenchmark(config);
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r.print();
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}
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{
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printf("--- Read heavy benchmark ---\n");
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2013-10-29 00:31:44 +01:00
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vector <WorkerThread*> config = SetupBenchmarkReadHeavy();
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2013-10-24 02:31:12 +02:00
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Result r = StartBenchmark(config);
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r.print();
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}
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return 0;
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}
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