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Deflake DBTest2.TraceAndReplay by relaxing latency checks (#10979)

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Summary:
Since the latency measurement uses real time it is possible for the operation to complete in zero microseconds and then fail these checks. We saw this with the operation that invokes Get() on an invalid CF. This PR relaxes the assertions to allow for operations completing in zero microseconds.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/10979

Reviewed By: riversand963

Differential Revision: D41478300

Pulled By: ajkr

fbshipit-source-id: 50ef096bd8f0162b31adb46f54ae6ddc337d0a5e
This commit is contained in:
Andrew Kryczka 2022-11-22 13:07:17 -08:00 committed by Facebook GitHub Bot
parent f4cfcfe824
commit db9cbddc6f
1 changed files with 8 additions and 8 deletions
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16
db/db_test2.cc
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@ -4523,7 +4523,7 @@ TEST_F(DBTest2, TraceAndReplay) {
ASSERT_OK(replayer->Prepare());
// Replay using 1 thread, 1x speed.
ASSERT_OK(replayer->Replay(ReplayOptions(1, 1.0), res_cb));
ASSERT_GT(res_handler.GetAvgLatency(), 0.0);
ASSERT_GE(res_handler.GetAvgLatency(), 0.0);
ASSERT_EQ(res_handler.GetNumWrites(), 8);
ASSERT_EQ(res_handler.GetNumGets(), 3);
ASSERT_EQ(res_handler.GetNumIterSeeks(), 2);
@ -4549,7 +4549,7 @@ TEST_F(DBTest2, TraceAndReplay) {
// Re-replay using 2 threads, 2x speed.
ASSERT_OK(replayer->Prepare());
ASSERT_OK(replayer->Replay(ReplayOptions(2, 2.0), res_cb));
ASSERT_GT(res_handler.GetAvgLatency(), 0.0);
ASSERT_GE(res_handler.GetAvgLatency(), 0.0);
ASSERT_EQ(res_handler.GetNumWrites(), 8);
ASSERT_EQ(res_handler.GetNumGets(), 3);
ASSERT_EQ(res_handler.GetNumIterSeeks(), 2);
@ -4559,7 +4559,7 @@ TEST_F(DBTest2, TraceAndReplay) {
// Re-replay using 2 threads, 1/2 speed.
ASSERT_OK(replayer->Prepare());
ASSERT_OK(replayer->Replay(ReplayOptions(2, 0.5), res_cb));
ASSERT_GT(res_handler.GetAvgLatency(), 0.0);
ASSERT_GE(res_handler.GetAvgLatency(), 0.0);
ASSERT_EQ(res_handler.GetNumWrites(), 8);
ASSERT_EQ(res_handler.GetNumGets(), 3);
ASSERT_EQ(res_handler.GetNumIterSeeks(), 2);
@ -4757,7 +4757,7 @@ TEST_F(DBTest2, TraceAndManualReplay) {
// end, or Prepare() was not called.
ASSERT_TRUE(s.IsIncomplete());
ASSERT_TRUE(replayer->Next(nullptr).IsIncomplete());
ASSERT_GT(res_handler.GetAvgLatency(), 0.0);
ASSERT_GE(res_handler.GetAvgLatency(), 0.0);
ASSERT_EQ(res_handler.GetNumWrites(), 9);
ASSERT_EQ(res_handler.GetNumGets(), 3);
ASSERT_EQ(res_handler.GetNumIterSeeks(), 8);
@ -4791,7 +4791,7 @@ TEST_F(DBTest2, TraceAndManualReplay) {
ASSERT_EQ("write1", value);
ASSERT_OK(db2->Get(ro, handles[0], "trace-record-write2", &value));
ASSERT_EQ("write2", value);
ASSERT_GT(res_handler.GetAvgLatency(), 0.0);
ASSERT_GE(res_handler.GetAvgLatency(), 0.0);
ASSERT_EQ(res_handler.GetNumWrites(), 1);
ASSERT_EQ(res_handler.GetNumGets(), 0);
ASSERT_EQ(res_handler.GetNumIterSeeks(), 0);
@ -4816,7 +4816,7 @@ TEST_F(DBTest2, TraceAndManualReplay) {
record.reset(new GetQueryTraceRecord(invalid_cf_id, "whatever", fake_ts++));
ASSERT_TRUE(replayer->Execute(record, &result).IsCorruption());
ASSERT_TRUE(result == nullptr);
ASSERT_GT(res_handler.GetAvgLatency(), 0.0);
ASSERT_GE(res_handler.GetAvgLatency(), 0.0);
ASSERT_EQ(res_handler.GetNumWrites(), 0);
ASSERT_EQ(res_handler.GetNumGets(), 2);
ASSERT_EQ(res_handler.GetNumIterSeeks(), 0);
@ -4845,7 +4845,7 @@ TEST_F(DBTest2, TraceAndManualReplay) {
ASSERT_TRUE(replayer->Execute(record, &result).IsCorruption());
ASSERT_TRUE(result == nullptr);
}
ASSERT_GT(res_handler.GetAvgLatency(), 0.0);
ASSERT_GE(res_handler.GetAvgLatency(), 0.0);
ASSERT_EQ(res_handler.GetNumWrites(), 0);
ASSERT_EQ(res_handler.GetNumGets(), 0);
ASSERT_EQ(res_handler.GetNumIterSeeks(), 4); // Seek x 2 in two iterations
@ -4900,7 +4900,7 @@ TEST_F(DBTest2, TraceAndManualReplay) {
std::vector<std::string>({"a"}), fake_ts++));
ASSERT_TRUE(replayer->Execute(record, &result).IsInvalidArgument());
ASSERT_TRUE(result == nullptr);
ASSERT_GT(res_handler.GetAvgLatency(), 0.0);
ASSERT_GE(res_handler.GetAvgLatency(), 0.0);
ASSERT_EQ(res_handler.GetNumWrites(), 0);
ASSERT_EQ(res_handler.GetNumGets(), 0);
ASSERT_EQ(res_handler.GetNumIterSeeks(), 0);