Results 31 to 40 of about 15,372,779 (340)

TicToc: Time Traveling Optimistic Concurrency Control

open access: yesSIGMOD Conference, 2016
Concurrency control for on-line transaction processing (OLTP) database management systems (DBMSs) is a nasty game. Achieving higher performance on emerging many-core systems is difficult.
Xiangyao Yu   +3 more
semanticscholar   +1 more source

Structural equation modeling the “control of gut overgrowth” in the prevention of ICU-acquired Gram-negative infection

open access: yesCritical Care, 2020
Background Conceptually, the “control of gut overgrowth” (COGO) is key in mediating prevention against infection with Gram-negative bacilli by topical antibiotic prophylaxis, a common constituent of selective digestive decontamination (SDD) regimens ...
James C. Hurley
doaj   +1 more source

Infinite Resources for Optimistic Concurrency Control

open access: yesNetCompute@SIGCOMM, 2018
Optimistic concurrency control (OCC) is inefficient for high-contention workloads. When concurrent transactions conflict, an OCC system wastes CPU resources verifying transactions, only to abort them.
Theo Jepsen   +4 more
semanticscholar   +1 more source

Rethinking serializable multiversion concurrency control [PDF]

open access: yesProceedings of the VLDB Endowment, 2014
Multi-versioned database systems have the potential to significantly increase the amount of concurrency in transaction processing because they can avoid read-write conflicts.
Jose M. Faleiro, D. Abadi
semanticscholar   +1 more source

Performance of Parallel K-Means Algorithms in Java

open access: yesAlgorithms, 2022
K-means is a well-known clustering algorithm often used for its simplicity and potential efficiency. Its properties and limitations have been investigated by many works reported in the literature. K-means, though, suffers from computational problems when
Libero Nigro
doaj   +1 more source

Field Programmable Gate Array Based Torque Predictive Control for Permanent Magnet Servo Motors

open access: yesMicromachines, 2022
With the increasing demand for legged robots, the importance of the joint drive is increasing. The dynamic performance of the inner-most torque/current control loop conditions the capabilities of the whole joint system.
Zheng Sun   +6 more
doaj   +1 more source

Intelligent Transaction Scheduling to Enhance Concurrency in High-Contention Workloads

open access: yesApplied Sciences
Concurrency control (CC) scheme based on transaction decomposition has significantly enhanced the concurrency performance of multicore in-memory databases, surpassing traditional CC schemes such as two-phase locking (2PL) or optimistic concurrency ...
Shuhan Chen, Congqi Shen, Chunming Wu
doaj   +1 more source

A Highly Concurrent Replicated Data Structure EAI Endorsed Transactions

open access: yesEAI Endorsed Transactions on Collaborative Computing, 2015
Well defined concurrent replicated data structure is very important to design collaborative editing system, particularly, certain properties like out-of-order execution of concurrent operations and data convergence.
Mumtaz Ahmad   +2 more
doaj   +1 more source

P‐glycoprotein modulates the fluidity gradient of the plasma membrane of multidrug resistant CHO cells

open access: yesFEBS Letters, EarlyView.
To explore the impact of the overexpression of the multidrug‐transporter P‐glycoprotein (ABCB1) on membrane fluidity, we compared the transversal gradient of mobility and microviscosity in plasma membranes of drug‐sensitive Chinese hamster ovary cells (AuxB1) and their multidrug‐resistant derivatives (B30) using the fluorescent n‐(9‐anthroyloxy) fatty ...
Roger Busche   +2 more
wiley   +1 more source

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