Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor | Department of Computing | en_US |
| dc.contributor.advisor | Lo, Eric (COMP) | - |
| dc.creator | Feng, Ziqiang | - |
| dc.identifier.uri | https://theses.lib.polyu.edu.hk/handle/200/8500 | - |
| dc.language | English | en_US |
| dc.publisher | Hong Kong Polytechnic University | - |
| dc.rights | All rights reserved | en_US |
| dc.title | ByteSlice : pushing the envelop of main memory data processing with a new storage layout | en_US |
| dcterms.abstract | Scan and lookup are two core operations in main memory column stores. A scan operation scans a column and returns a result bit vector that indicates which records satisfy a filter. Once a column scan is completed, the result bit vector is converted into a list of record numbers, which is then used to look up values from other columns of interest for a query. Recently there are several in-memory data layout proposals that aim to improve the performance of in-memory data processing. However, these solutions all stand at either end of a trade-off each is either good in lookup performance or good in scan performance, but not both. This thesis presents ByteSlice, a new main memory storage layout that supports both highly efficient scans and lookups. ByteSlice is a byte-level columnar layout that fully leverages SIMD data-parallelism. Micro-benchmark experiments show that ByteSlice achieves a data scan speed at less than 0.5 processor cycle per column value a new limit of main memory data scan, without sacrificing lookup performance. Experiments on TPC-H data and real data show that ByteSlice offers significant performance improvement over all state-of-the-art approaches. | en_US |
| dcterms.extent | xiv, 66 pages : illustrations | en_US |
| dcterms.isPartOf | PolyU Electronic Theses | en_US |
| dcterms.issued | 2016 | en_US |
| dcterms.educationalLevel | All Master | en_US |
| dcterms.educationalLevel | M.Phil. | en_US |
| dcterms.LCSH | Memory management (Computer science) | en_US |
| dcterms.LCSH | Database management. | en_US |
| dcterms.LCSH | Hong Kong Polytechnic University -- Dissertations | en_US |
| dcterms.accessRights | open access | en_US |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| b28945402.pdf | For All Users | 2.29 MB | Adobe PDF | View/Open |
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