Add test for memtable bloom filter with WriteBufferManager #13398
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Summary: ... to ensure proper cache charging. However, this is a somewhat hazardous combination if there are many CFs and could be the target of future work. Test Plan: this is the test
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@pdillinger has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator. |
hx235
reviewed
Feb 19, 2025
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| // Just the start of a memtable, no Bloom, rounded up to kSizeDummyEntry | ||
| ASSERT_GE(cache->GetUsage(), 1024U); | ||
| ASSERT_LE(cache->GetUsage(), 256U * 1024U); |
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nit: use static constexpr std::size_t kSizeDummyEntry = CacheReservationManagerImplCacheEntryRole::kMisc::GetDummyEntrySize(); ? Same for upper bound below just so it's easier to sea how many kSizeDummyEntry in the upper bound
hx235
reviewed
Feb 19, 2025
| ASSERT_OK(Put("foo2", "bar2")); | ||
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| // Expecting a memtable Bloom of ratio times write_buffer_size, memory tracked | ||
| ASSERT_GE(cache->GetUsage(), 1000000U); |
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nit: options.write_buffer_size * options.memtable_prefix_bloom_size_ratio instead of hard-coded 1000000U ? Same for 2000000U below
hx235
approved these changes
Feb 19, 2025
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Summary: ... to ensure proper cache charging. However, this is a somewhat hazardous combination if there are many CFs and could be the target of future work.
Test Plan: this is the test