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Remove flaky test (#5169)

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Summary:
Pull Request resolved: https://github.com/facebookresearch/faiss/pull/5169

Created from CodeHub with https://fburl.com/edit-in-codehub

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Oncall Short Name: faiss

Differential Revision: D103406045

fbshipit-source-id: 20ab4bc62548b64c47014ccedd4496af9d0f4eb7
This commit is contained in:
Michael Norris
2026-05-01 09:55:55 -07:00
committed by meta-codesync[bot]
parent c5ddbc7104
commit 812010fe19
1 changed files with 0 additions and 34 deletions
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tests/test_simd_perf.cpp
-34
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@@ -162,40 +162,6 @@ TEST_F(SIMDPerfTest, AVX2FasterThanNONE) {
<< "NONE=" << none_time << "ms, AVX2=" << avx2_time << "ms";
}
TEST_F(SIMDPerfTest, AVX512FasterThanAVX2IfAvailable) {
if (!faiss::SIMDConfig::is_simd_level_available(faiss::SIMDLevel::AVX512)) {
GTEST_SKIP() << "AVX512 not available on this machine";
}
verify_dispatch(faiss::SIMDLevel::AVX2);
verify_dispatch(faiss::SIMDLevel::AVX512);
auto bench_fn = [this](faiss::SIMDLevel level) {
return benchmark_fvec_inner_products_ny(level);
};
auto [avx2_time, avx512_time] = benchmark_interleaved_best(
bench_fn, faiss::SIMDLevel::AVX2, faiss::SIMDLevel::AVX512);
printf("fvec_inner_products_ny AVX2: %.2f ms (best of %d runs)\n",
avx2_time,
kBenchmarkReps);
printf("fvec_inner_products_ny AVX512: %.2f ms (best of %d runs)\n",
avx512_time,
kBenchmarkReps);
double speedup = avx2_time / avx512_time;
printf("Speedup (AVX512 vs AVX2): %.2fx\n", speedup);
// AVX512 fvec_inner_products_ny (d=8) uses 16x8 register transpose
// (16 vectors/iteration) vs AVX2's 8x8 transpose (8 vectors/iteration).
// Expected speedup is ~1.5x on bare metal. We use 1.1x threshold to
// allow for AVX-512 frequency throttling on Intel CPUs.
EXPECT_GT(speedup, 1.1)
<< "AVX512 should be at least 1.1x faster than AVX2 for "
<< "fvec_inner_products_ny. "
<< "AVX2=" << avx2_time << "ms, AVX512=" << avx512_time << "ms";
}
// Additional test: Verify fvec_L2sqr dispatch is at least not slower.
// fvec_L2sqr uses auto-vectorization, so AVX2 may only be slightly faster.
TEST_F(SIMDPerfTest, L2sqrAutoVecDispatchWorks) {