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    • 14. 发明授权
    • Determining whether change in workload of database system has occurred, and/or whether executing current workload will likely result in problem developing with database system
    • 确定数据库系统的工作负载是否发生变化,和/或执行当前工作负荷是否会导致数据库系统发生问题
    • US08099399B2
    • 2012-01-17
    • US12509704
    • 2009-07-27
    • William K. WilkinsonHarumi KunoGoetz Graefe
    • William K. WilkinsonHarumi KunoGoetz Graefe
    • G06F17/30
    • G06F17/30306
    • Whether a change in workload of a database system has occurred can be determined. Investigative queries are formulated. Each investigative query is adapted to test a different resource or a different combination of resources of the database system. The investigative queries are run when the database system is in an unloaded state to acquire unloaded performance metrics. The investigative queries are run when the database system is in a loaded state to acquire loaded performance metrics. Whether executing a current workload of the database system, using a current configuration of the database system, will likely result in a problem developing at a later point in time can also be determined. Simultaneously with actual execution of the current workload on the database system using the current configuration, a simulation of execution of the current workload using the current configuration is performed. The simulation is performed more quickly than the actual execution.
    • 可以确定是否发生了数据库系统的工作负载变化。 制定调查性查询。 每个调查查询都适用于测试数据库系统的不同资源或资源的不同组合。 当数据库系统处于卸载状态以获取卸载的性能指标时,调查查询将会运行。 当数据库系统处于加载状态以获取加载的性能指标时,调查查询将运行。 无论执行数据库系统的当前工作负载,使用数据库系统的当前配置,可能会导致在稍后时间点发展的问题也可以被确定。 与使用当前配置的数据库系统上的当前工作负载的实际执行同时,执行使用当前配置执行当前工作负载的模拟。 仿真比实际执行更快。
    • 15. 发明申请
    • Determining whether change in workload of database system has occurred, and/or whether executing current workload will likely result in problem developing with database system
    • 确定数据库系统的工作负载是否发生变化,和/或执行当前工作负荷是否会导致数据库系统发生问题
    • US20110022586A1
    • 2011-01-27
    • US12509704
    • 2009-07-27
    • William K. WilkinsonHarumi KunoGoetz Graefe
    • William K. WilkinsonHarumi KunoGoetz Graefe
    • G06F17/30G06F15/18
    • G06F17/30306
    • Whether a change in workload of a database system has occurred can be determined. Investigative queries are formulated. Each investigative query is adapted to test a different resource or a different combination of resources of the database system. The investigative queries are run when the database system is in an unloaded state to acquire unloaded performance metrics. The investigative queries are run when the database system is in a loaded state to acquire loaded performance metrics. Whether executing a current workload of the database system, using a current configuration of the database system, will likely result in a problem developing at a later point in time can also be determined. Simultaneously with actual execution of the current workload on the database system using the current configuration, a simulation of execution of the current workload using the current configuration is performed. The simulation is performed more quickly than the actual execution.
    • 可以确定是否发生了数据库系统的工作负载变化。 制定调查性查询。 每个调查查询都适用于测试数据库系统的不同资源或资源的不同组合。 当数据库系统处于卸载状态以获取卸载的性能指标时,调查查询将会运行。 当数据库系统处于加载状态以获取加载的性能指标时,调查查询将运行。 无论执行数据库系统的当前工作负载,使用数据库系统的当前配置,可能会导致在稍后时间点发展的问题也可以被确定。 与使用当前配置的数据库系统上的当前工作负载的实际执行同时,执行使用当前配置执行当前工作负载的模拟。 仿真比实际执行更快。