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Ability to make the benchmark issue a large number of IOs. This is helpful to populate many gigabytes of data for benchmarking at scale.

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Task ID: #

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Test Plan: Revert Plan:

Differential Revision: https://reviews.facebook.net/D3333
This commit is contained in:
Dhruba Borthakur 2012-05-22 12:18:23 -07:00
parent 3b86a51cb1
commit 33a3c6ff6c
1 changed files with 19 additions and 18 deletions
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37
db/db_bench.cc
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@ -61,10 +61,10 @@ static const char* FLAGS_benchmarks =
;
// Number of key/values to place in database
static int FLAGS_num = 1000000;
static long FLAGS_num = 1000000;
// Number of read operations to do. If negative, do FLAGS_num reads.
static int FLAGS_reads = -1;
static long FLAGS_reads = -1;
// Number of concurrent threads to run.
static int FLAGS_threads = 1;
@ -171,7 +171,7 @@ class Stats {
double start_;
double finish_;
double seconds_;
int done_;
long done_;
int next_report_;
int64_t bytes_;
double last_op_finish_;
@ -235,7 +235,7 @@ class Stats {
else if (next_report_ < 100000) next_report_ += 10000;
else if (next_report_ < 500000) next_report_ += 50000;
else next_report_ += 100000;
fprintf(stderr, "... finished %d ops%30s\r", done_, "");
fprintf(stderr, "... finished %ld ops%30s\r", done_, "");
fflush(stderr);
}
}
@ -288,8 +288,8 @@ struct SharedState {
// (3) running
// (4) done
int num_initialized;
int num_done;
long num_initialized;
long num_done;
bool start;
SharedState() : cv(&mu) { }
@ -315,11 +315,11 @@ class Benchmark {
Cache* cache_;
const FilterPolicy* filter_policy_;
DB* db_;
int num_;
long num_;
int value_size_;
int entries_per_batch_;
WriteOptions write_options_;
int reads_;
long reads_;
int heap_counter_;
void PrintHeader() {
@ -329,7 +329,7 @@ class Benchmark {
fprintf(stdout, "Values: %d bytes each (%d bytes after compression)\n",
FLAGS_value_size,
static_cast<int>(FLAGS_value_size * FLAGS_compression_ratio + 0.5));
fprintf(stdout, "Entries: %d\n", num_);
fprintf(stdout, "Entries: %ld\n", num_);
fprintf(stdout, "RawSize: %.1f MB (estimated)\n",
((static_cast<int64_t>(kKeySize + FLAGS_value_size) * num_)
/ 1048576.0));
@ -755,7 +755,7 @@ class Benchmark {
void ReadSequential(ThreadState* thread) {
Iterator* iter = db_->NewIterator(ReadOptions(FLAGS_verify_checksum, true));
int i = 0;
long i = 0;
int64_t bytes = 0;
for (iter->SeekToFirst(); i < reads_ && iter->Valid(); iter->Next()) {
bytes += iter->key().size() + iter->value().size();
@ -768,7 +768,7 @@ class Benchmark {
void ReadReverse(ThreadState* thread) {
Iterator* iter = db_->NewIterator(ReadOptions(FLAGS_verify_checksum, true));
int i = 0;
long i = 0;
int64_t bytes = 0;
for (iter->SeekToLast(); i < reads_ && iter->Valid(); iter->Prev()) {
bytes += iter->key().size() + iter->value().size();
@ -783,7 +783,7 @@ class Benchmark {
ReadOptions options(FLAGS_verify_checksum, true);
std::string value;
int found = 0;
for (int i = 0; i < reads_; i++) {
for (long i = 0; i < reads_; i++) {
char key[100];
const int k = thread->rand.Next() % FLAGS_num;
snprintf(key, sizeof(key), "%016d", k);
@ -800,7 +800,7 @@ class Benchmark {
void ReadMissing(ThreadState* thread) {
ReadOptions options(FLAGS_verify_checksum, true);
std::string value;
for (int i = 0; i < reads_; i++) {
for (long i = 0; i < reads_; i++) {
char key[100];
const int k = thread->rand.Next() % FLAGS_num;
snprintf(key, sizeof(key), "%016d.", k);
@ -812,8 +812,8 @@ class Benchmark {
void ReadHot(ThreadState* thread) {
ReadOptions options(FLAGS_verify_checksum, true);
std::string value;
const int range = (FLAGS_num + 99) / 100;
for (int i = 0; i < reads_; i++) {
const long range = (FLAGS_num + 99) / 100;
for (long i = 0; i < reads_; i++) {
char key[100];
const int k = thread->rand.Next() % range;
snprintf(key, sizeof(key), "%016d", k);
@ -826,7 +826,7 @@ class Benchmark {
ReadOptions options(FLAGS_verify_checksum, true);
std::string value;
int found = 0;
for (int i = 0; i < reads_; i++) {
for (long i = 0; i < reads_; i++) {
Iterator* iter = db_->NewIterator(options);
char key[100];
const int k = thread->rand.Next() % FLAGS_num;
@ -943,6 +943,7 @@ int main(int argc, char** argv) {
for (int i = 1; i < argc; i++) {
double d;
int n;
long l;
char junk;
if (leveldb::Slice(argv[i]).starts_with("--benchmarks=")) {
FLAGS_benchmarks = argv[i] + strlen("--benchmarks=");
@ -954,8 +955,8 @@ int main(int argc, char** argv) {
} else if (sscanf(argv[i], "--use_existing_db=%d%c", &n, &junk) == 1 &&
(n == 0 || n == 1)) {
FLAGS_use_existing_db = n;
} else if (sscanf(argv[i], "--num=%d%c", &n, &junk) == 1) {
FLAGS_num = n;
} else if (sscanf(argv[i], "--num=%ld%c", &l, &junk) == 1) {
FLAGS_num = l;
} else if (sscanf(argv[i], "--reads=%d%c", &n, &junk) == 1) {
FLAGS_reads = n;
} else if (sscanf(argv[i], "--threads=%d%c", &n, &junk) == 1) {