.png){kind=icon}
Return
CHECKPOINTING FOR OPTIMISTIC CONCURRENCY-CONTROL METHODS
.png){kind=icon}
PRE
AI
DOI：10.1109/69.382303.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
Restart-oriented concurrency control (CC) methods, such as optimistic CC, outperform blocking-oriented methods, such as standard two-phase locking in a high data contention environment, but this is at the cost of wasted processing due to restarts, Volatile savepoints are considered in this study as a method to reduce this wasted processing and to improve response time, There is the usual tradeoff between the checkpointing overhead and the wasted processing when a transaction is restarted, Our study shows that in a system where objects are accessed and updated uniformly during the lifetime of transactions, significant improvement in performance at high data conflict levels are attainable only when checkpointing cost is low, This implies few optimally placed checkpoints per transaction, It is observed that checkpointing may result in a significant improvement in performance when accesses to database hot-spots are deferred to the final steps of transaction execution, The parametric studies reported in this paper are facilitated by closed form analytic solutions expressing system performance, as well as an iterative solution which takes into account hardware resource contention in addition to data contention.
Keywords:
TRANSACTION PROCESSING
DATA CONTENTION
CHECKPOINTING
VOLATILE SAVEPOINTS
OPTIMAL SAVEPOINT PLACEMENT
OPTIMISTIC CONCURRENCY CONTROL
PERFORMANCE ANALYSIS
ANALYTIC MODELING
FLOW DIAGRAMS
SEMI-MARKOV CHAINS
QUEUING NETWORK MODELS
AI Summary
Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.
Journal
IF:
10.4
Papers:
6.8K
Citations:
3.2W
Organization
No organization information available
Cited Papers
Sonic hedgehog functions upstream ofdisrupted-in-schizophrenia 1(disc1): implications for mental illness.png)
Biology Open
OAAI
Biology OpenIF0
OAAIShareSaveValidation of a Semi-Quantitative Food Frequency Questionnaire for Argentinean AdultsPLoS ONEOAAI
PLoS ONEIF0
OAAIShareSaveShareSaveShareSaveShareSaveThe effect of external lateral stabilization on the use of foot placement to control mediolateral stability in walking and runningPeerJ
OAAI
PeerJIF0
OAAIShareSave
View more