| 61 | } |
| 62 | |
| 63 | UNIT_TEST(SuccinctEFList_Ratio) |
| 64 | { |
| 65 | size_t constexpr kCount = 1 << 20; |
| 66 | |
| 67 | { |
| 68 | // No need to use EFList for generic data. |
| 69 | double const ratio2 = GetCompressionRatio(GetUniformValues<uint16_t>(kCount)); |
| 70 | TEST_LESS(ratio2, 1, ()); |
| 71 | LOG(LINFO, ("Uniform ratio 2:", ratio2)); |
| 72 | |
| 73 | double const ratio4 = GetCompressionRatio(GetUniformValues<uint32_t>(kCount)); |
| 74 | TEST_LESS(ratio4, 1, ()); |
| 75 | LOG(LINFO, ("Uniform ratio 4:", ratio4)); |
| 76 | } |
| 77 | |
| 78 | { |
| 79 | // EF is good for some kind of normal distribution of small values. |
| 80 | double const ratio2 = GetCompressionRatio(GetNormalValues(kCount, uint16_t(128))); |
| 81 | TEST_GREATER(ratio2, 1, ()); |
| 82 | LOG(LINFO, ("Normal ratio 2:", ratio2)); |
| 83 | |
| 84 | double const ratio4 = GetCompressionRatio(GetNormalValues(kCount, uint32_t(1024))); |
| 85 | TEST_GREATER(ratio4, 1, ()); |
| 86 | LOG(LINFO, ("Normal ratio 4:", ratio4)); |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | } // namespace succinct_ef_test |
nothing calls this directly
no test coverage detected