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Fix DBOptionsTest.SetBytesPerSync test when run with no compression

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Summary:
Also made the test more easier to understand:
- changed the value size to ~1MB.
- switched to NoCompression. We don't anyway need compression in this test for dynamic options.

The test failures started happening starting from: #2893 .
Closes https://github.com/facebook/rocksdb/pull/2957

Differential Revision: D5959392

Pulled By: sagar0

fbshipit-source-id: 2d55641e429246328bc6d10fcb9ef540d6ce07da
This commit is contained in:
Sagar Vemuri 2017-10-03 13:36:53 -07:00 committed by Facebook Github Bot
parent 92ccae7123
commit 377e004048
1 changed files with 16 additions and 6 deletions
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22
db/db_options_test.cc
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@ -118,13 +118,14 @@ TEST_F(DBOptionsTest, GetLatestCFOptions) {
}
TEST_F(DBOptionsTest, SetBytesPerSync) {
const size_t kValueSize = 1024 * 1024 * 8;
const size_t kValueSize = 1024 * 1024; // 1MB
Options options;
options.create_if_missing = true;
options.bytes_per_sync = 1024 * 1024;
options.use_direct_reads = false;
options.write_buffer_size = 400 * kValueSize;
options.disable_auto_compactions = true;
options.compression = kNoCompression;
options.env = env_;
Reopen(options);
int counter = 0;
@ -138,25 +139,33 @@ TEST_F(DBOptionsTest, SetBytesPerSync) {
});
WriteOptions write_opts;
for (; i < 40; i++) {
// should sync approximately 40MB/1MB ~= 40 times.
for (i = 0; i < 40; i++) {
Put(Key(i), kValue, write_opts);
}
i = 0;
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
ASSERT_OK(dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr));
rocksdb::SyncPoint::GetInstance()->DisableProcessing();
low_bytes_per_sync = counter;
ASSERT_GT(low_bytes_per_sync, 35);
ASSERT_LT(low_bytes_per_sync, 45);
counter = 0;
// 8388608 = 8 * 1024 * 1024
ASSERT_OK(dbfull()->SetDBOptions({{"bytes_per_sync", "8388608"}}));
ASSERT_EQ(8388608, dbfull()->GetDBOptions().bytes_per_sync);
for (; i < 40; i++) {
// should sync approximately 40MB*2/8MB ~= 10 times.
// data will be 40*2MB because of previous Puts too.
for (i = 0; i < 40; i++) {
Put(Key(i), kValue, write_opts);
}
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
ASSERT_OK(dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr));
ASSERT_GT(counter, 0);
ASSERT_GT(low_bytes_per_sync, 0);
ASSERT_GT(counter, 5);
ASSERT_LT(counter, 15);
// Redundant assert. But leaving it here just to get the point across that
// low_bytes_per_sync > counter.
ASSERT_GT(low_bytes_per_sync, counter);
}
@ -167,6 +176,7 @@ TEST_F(DBOptionsTest, SetWalBytesPerSync) {
options.wal_bytes_per_sync = 512;
options.write_buffer_size = 100 * kValueSize;
options.disable_auto_compactions = true;
options.compression = kNoCompression;
options.env = env_;
Reopen(options);
ASSERT_EQ(512, dbfull()->GetDBOptions().wal_bytes_per_sync);