andreacavalli/rocksdb
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make rate limiter test more reliable

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Summary:
Randomize keys so that compaction actually happens.
Change the config so that compaction happens more aggressively.
The test takes longer time, but the results are more stable shown by
iostat

Test Plan: ran it

Reviewers: igor, yhchiang

Reviewed By: yhchiang

Subscribers: leveldb

Differential Revision: https://reviews.facebook.net/D19533
This commit is contained in:
Lei Jin 2014-07-08 15:15:00 -07:00
parent 8a9cc7885c
commit 73d7147096
1 changed files with 21 additions and 13 deletions
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30
db/db_test.cc
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@ -7136,20 +7136,26 @@ TEST(DBTest, MTRandomTimeoutTest) {
TEST(DBTest, RateLimitingTest) {
Options options = CurrentOptions();
options.write_buffer_size = 1 << 20; // 1MB
options.level0_file_num_compaction_trigger = 10;
options.level0_file_num_compaction_trigger = 2;
options.target_file_size_base = 1 << 20; // 1MB
options.max_bytes_for_level_base = 10 << 20; // 10MB
options.max_bytes_for_level_base = 4 << 20; // 4MB
options.max_bytes_for_level_multiplier = 4;
options.compression = kNoCompression;
options.create_if_missing = true;
options.env = env_;
options.IncreaseParallelism(4);
DestroyAndReopen(&options);
WriteOptions wo;
wo.disableWAL = true;
// # no rate limiting
Random rnd(301);
uint64_t start = env_->NowMicros();
// Write ~32M data
for (int64_t i = 0; i < (32 << 10); ++i) {
ASSERT_OK(Put(std::to_string(i), RandomString(&rnd, (1 << 10) + 1)));
// Write ~96M data
for (int64_t i = 0; i < (96 << 10); ++i) {
ASSERT_OK(Put(RandomString(&rnd, 32),
RandomString(&rnd, (1 << 10) + 1), wo));
}
uint64_t elapsed = env_->NowMicros() - start;
double raw_rate = env_->bytes_written_ * 1000000 / elapsed;
@ -7162,9 +7168,10 @@ TEST(DBTest, RateLimitingTest) {
DestroyAndReopen(&options);
start = env_->NowMicros();
// Write ~32M data
for (int64_t i = 0; i < (32 << 10); ++i) {
ASSERT_OK(Put(std::to_string(i), RandomString(&rnd, (1 << 10) + 1)));
// Write ~96M data
for (int64_t i = 0; i < (96 << 10); ++i) {
ASSERT_OK(Put(RandomString(&rnd, 32),
RandomString(&rnd, (1 << 10) + 1), wo));
}
elapsed = env_->NowMicros() - start;
Close();
@ -7181,9 +7188,10 @@ TEST(DBTest, RateLimitingTest) {
DestroyAndReopen(&options);
start = env_->NowMicros();
// Write ~32M data
for (int64_t i = 0; i < (32 << 10); ++i) {
ASSERT_OK(Put(std::to_string(i), RandomString(&rnd, (1 << 10) + 1)));
// Write ~96M data
for (int64_t i = 0; i < (96 << 10); ++i) {
ASSERT_OK(Put(RandomString(&rnd, 32),
RandomString(&rnd, (1 << 10) + 1), wo));
}
elapsed = env_->NowMicros() - start;
Close();