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Fix SCD Table test flakiness #4069

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Fix SCD Table test flakiness #4069

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10 changes: 9 additions & 1 deletion tests/test_disable_pq_sdc_tables.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,15 @@
pthread_mutex_t temp_file_mutex = PTHREAD_MUTEX_INITIALIZER;

TEST(IO, TestReadHNSWPQ_whenSDCDisabledFlagPassed_thenDisableSDCTable) {
Tempfilename index_filename(&temp_file_mutex, "/tmp/faiss_TestReadHNSWPQ");
// Create a temp file name with a randomized component for stress runs
std::random_device rd;
std::mt19937 mt(rd());
std::uniform_real_distribution<float> dist(0, 9999999);
std::string temp_file_name =
"/tmp/faiss_TestReadHNSWPQ" + std::to_string(int(dist(mt)));
Tempfilename index_filename(&temp_file_mutex, temp_file_name);

// Create a HNSW index with PQ encoding
int d = 32, n = 256;
std::default_random_engine rng(123);
std::uniform_real_distribution<float> u(0, 100);
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