[Enhancement]: consider replacing bloom filters with xor filters / binary fuse filters
#32995
Open
1 task done
Assignees
Labels
kind/enhancement
Issues or changes related to enhancement
Comments
alexanderguzhva
added
the
kind/enhancement
|
is there any performance profiling result? |
|
significantly faster. https://arxiv.org/pdf/2201.01174
Alternatively, we may use `Blocked Bloom filters' (https://save-buffer.github.io/bloom_filter.html; an example of a go package is https://github.com/greatroar/blobloom) |
|
@weiliu1031 let's profiling all the filter in multiple dimensions:
|
|
/assign |
sre-ci-robot
pushed a commit
that referenced
this issue
May 31, 2024
…#33405) issue: #32995 To speed up the construction and querying of Bloom filters, we chose a blocked Bloom filter instead of a basic Bloom filter implementation. WARN: This PR is compatible with old version bf impl, but if fall back to old milvus version, it may causes bloom filter deserialize failed. In single Bloom filter test cases with a capacity of 1,000,000 and a false positive rate (FPR) of 0.001, the blocked Bloom filter is 5 times faster than the basic Bloom filter in both querying and construction, at the cost of a 30% increase in memory usage. - Block BF construct time {"time": "54.128131ms"} - Block BF size {"size": 3021578} - Block BF Test cost {"time": "55.407352ms"} - Basic BF construct time {"time": "210.262183ms"} - Basic BF size {"size": 2396308} - Basic BF Test cost {"time": "192.596229ms"} In multi Bloom filter test cases with a capacity of 100,000, an FPR of 0.001, and 100 Bloom filters, we reuse the primary key locations for all Bloom filters to avoid repeated hash computations. As a result, the blocked Bloom filter is also 5 times faster than the basic Bloom filter in querying. - Block BF TestLocation cost {"time": "529.97183ms"} - Basic BF TestLocation cost {"time": "3.197430181s"} --------- Signed-off-by: Wei Liu <[email protected]>
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Is there an existing issue for this?
What would you like to be added?
consider replacing
bloom filterswithxor filters/binary fuse filtersan image from https://github.com/FastFilter/xor_singleheader
Why is this needed?
No response
Anything else?
No response
The text was updated successfully, but these errors were encountered: