Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Viktor Leis"'
Autor:
Adnan Alhomssi, Viktor Leis
Publikováno v:
Proceedings of the VLDB Endowment. 16:1426-1438
MVCC-based snapshot isolation promises that read queries can proceed without interfering with concurrent writes. However, as we show experimentally, in existing implementations a single long-running query can easily cause transactional throughput to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a41ed54a1723fa6c70c2b1c0ac8d0ff8
https://doi.org/10.14778/3583140.3583157
https://doi.org/10.14778/3583140.3583157
Autor:
Alexander van Renen, Viktor Leis
Publikováno v:
Proceedings of the VLDB Endowment. 16:1413-1425
The cloud facilitates the transition to a service-oriented perspective. This affects cloud-native data management in general, and data analytics in particular. Instead of managing a multi-node database cluster on-premise, end users simply send querie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::020f6a689b87ec282ae995932697ef9a
https://doi.org/10.14778/3583140.3583156
https://doi.org/10.14778/3583140.3583156
Publikováno v:
ACM Transactions on Database Systems. 47:1-46
We present the Height Optimized Trie (HOT), a fast and space-efficient in-memory index structure. The core algorithmic idea of HOT is to dynamically vary the number of bits considered at each node, which enables a consistently high fanout and thereby
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a15f74a471c2b7401b6f79cbdee6fe6
https://doi.org/10.1145/3506692
https://doi.org/10.1145/3506692
Publikováno v:
Datenbank-Spektrum. 22:11-22
Recently proposed index structures, that combine trie-based and comparison-based search mechanisms, considerably improve retrieval throughput for in-memory database systems. However, most of these index structures allocate small memory chunks when re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0af20cd40fb5b5cc32f89e398af8ab7c
https://doi.org/10.1007/s13222-022-00409-y
https://doi.org/10.1007/s13222-022-00409-y
Publikováno v:
ACM SIGMOD Record. 50:60-67
Modern query engines rely heavily on hash tables for query processing. Overall query performance and memory footprint is often determined by how hash tables and the tuples within them are represented. In this work, we propose three complementary tech
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa0ef71f267758fa1afaf64e417694c6
https://doi.org/10.1145/3471485.3471500
https://doi.org/10.1145/3471485.3471500
Publikováno v:
Data Management on New Hardware.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2189a1e047d8262592dc59966a631b2d
https://doi.org/10.1145/3533737.3538506
https://doi.org/10.1145/3533737.3538506
Publikováno v:
Proceedings of the 2022 International Conference on Management of Data.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ae82213d221d6cab466f464a3e86c12
https://doi.org/10.1145/3514221.3526187
https://doi.org/10.1145/3514221.3526187
Publikováno v:
Datenbank-Spektrum. 20:199-210
Remote Direct Memory Access (RDMA) is a networking protocol that provides high bandwidth and low latency accesses to a remote node’s main memory. Although there has been much work around RDMA, such as building libraries on top of RDMA or even appli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::553a58e13c5055837fd5f3559380f505
https://doi.org/10.1007/s13222-020-00355-7
https://doi.org/10.1007/s13222-020-00355-7
Publikováno v:
The VLDB Journal. 29:1223-1241
I/O latency and throughput are two of the major performance bottlenecks for disk-based database systems. Persistent memory (PMem) technologies, like Intel’s Optane DC persistent memory modules, promise to bridge the gap between NAND-based flash (SS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ad984c03c6753d1a2a52ce7568bfe55
https://doi.org/10.1007/s00778-020-00622-9
https://doi.org/10.1007/s00778-020-00622-9
Autor:
Lukas Vogel, Viktor Leis, Satoshi Imamura, Alfons Kemper, Alexander van Renen, Thomas Neumann
Publikováno v:
Proceedings of the VLDB Endowment. 13:2662-2675
Relational database systems are purpose-built for a specific storage device class (e.g., HDD, SSD, or DRAM). They do not cope well with the multitude of storage devices that are competitive at their price `sweet spots'. To make use of different stora
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94ec48fc018922cdaa533765568671d3
https://doi.org/10.14778/3407790.3407852
https://doi.org/10.14778/3407790.3407852