公开(公告)号：US20060277400A1

公开(公告)日：2006-12-07

申请号：US11145373

申请日：2005-06-03

Applicant: Peter Veen ,  Sheridan Ethier ,  Brian Stecher ,  Brian Edmond

Inventor： Peter Veen ,  Sheridan Ethier ,  Brian Stecher ,  Brian Edmond

IPC: G06F15/177

CPC classification number: G06F9/4411 ,  G06F9/4401

Abstract: A system for meeting demanding boot time requirements, such as those timing requirement mandated by vehicle telematics systems, is described. Current computer systems use expensive hardware like coprocessors to service requests, such as input/output requests, that have timing requirements which are less than the time required to load the operating system into memory. Instead, a mini-driver may be initialized early in the boot process before the operating system is loaded, to service these requests. For example, the mini-driver may buffer incoming data, and/or reply to incoming messages. After the operating system has loaded, a second device driver may be initialized, and the mini-driver may be transitioned to the second driver.

Abstract translation: 描述了满足苛刻的启动时间要求的系统，例如车辆远程信息处理系统所要求的定时要求。 当前的计算机系统使用诸如协处理器的昂贵的硬件来服务诸如输入/输出请求的请求，这些请求具有小于将操作系统加载到存储器中所需的时间要求。 相反，在加载操作系统之前，可以在启动过程的早期初始化一个小型驱动程序，以便为这些请求提供服务。 例如，迷你驱动程序可以缓冲输入数据和/或回复传入的消息。 在操作系统加载之后，可以初始化第二设备驱动程序，并且可以将小型驱动程序转换到第二驱动程序。

公开(公告)号：US20070061788A1

公开(公告)日：2007-03-15

申请号：US11371634

申请日：2006-03-08

Applicant: Dan Dodge ,  Attilla Danko ,  Sebastien Marineau-Mes ,  Peter Veen ,  Colin Burgess ,  Thomas Fletcher ,  Brian Stecher

Inventor： Dan Dodge ,  Attilla Danko ,  Sebastien Marineau-Mes ,  Peter Veen ,  Colin Burgess ,  Thomas Fletcher ,  Brian Stecher

IPC: G06F9/45

CPC classification number: G06F9/4881

Abstract: A system is set forth that includes a processor, one or more memory storage units, and software code stored in the one or more memory storage units. The software code is executable by the processor to generate a plurality of adaptive partitions that are each associated with one or more process threads. Each of the plurality of adaptive partitions has one or more corresponding scheduling attributes that are assigned to it. The software code further includes a scheduling system that is executable by the processor for selectively allocating the processor to run the process threads based on a comparison between ordering function values for each adaptive partition. The ordering function value for each adaptive partition is calculated using one or more of the scheduling attributes of the corresponding adaptive partition. The scheduling attributes that may be used to calculate the ordering function value include, for example, 1) the process budget, such as a guaranteed time budget, of the adaptive partition, 2) the critical budget, if any, of the adaptive partition, 3) the rate at which the process threads of an adaptive partition consume processor time, or the like. For each adaptive partition that is associated with a critical thread, a critical ordering function value also may be calculated. The scheduling system may compare the ordering function value with the critical ordering function value of the adaptive partition to determine the proper manner of billing the adaptive partition for the processor allocation used to run its associated critical threads. Methods of implementing various aspects of such a system are also set forth.

Abstract translation: 提出了一种包括处理器，一个或多个存储器单元和存储在一个或多个存储器存储单元中的软件代码的系统。 软件代码可由处理器执行以产生多个与一个或多个进程线程相关联的自适应分区。 多个自适应分区中的每一个具有分配给它的一个或多个对应的调度属性。 软件代码还包括可由处理器执行的调度系统，用于基于每个自适应分区的排序函数值之间的比较来选择性地分配处理器来运行处理线程。 使用相应自适应分区的一个或多个调度属性来计算每个自适应分区的排序函数值。 可用于计算排序函数值的调度属性包括例如1）自适应分区的过程预算，例如保证时间预算，2）自适应分区的关键预算（如果有的话） 3）自适应分区的进程线程消耗处理器时间的速率等。 对于与关键线程相关联的每个自适应分区，也可以计算临界排序函数值。 调度系统可以将排序函数值与自适应分区的关键排序函数值进行比较，以确定用于运行其关联关键线程的处理器分配的自适应分区计费的适当方式。 还阐述了实现这种系统的各个方面的方法。

公开(公告)号：US20070061809A1

公开(公告)日：2007-03-15

申请号：US11371639

申请日：2006-03-08

Applicant: Dan Dodge ,  Attilla Danko ,  Sebastien Marineau-Mes ,  Peter Veen ,  Colin Burgess ,  Thomas Fletcher ,  Brian Stecher

Inventor： Dan Dodge ,  Attilla Danko ,  Sebastien Marineau-Mes ,  Peter Veen ,  Colin Burgess ,  Thomas Fletcher ,  Brian Stecher

IPC: G06F9/46

CPC classification number: G06F9/4881

Abstract: A system is set forth that includes a processor, one or more memory storage units, and software code stored in the one or more memory storage units. The software code is executable by the processor to generate a plurality of adaptive partitions that are each associated with one or more process threads. Each of the plurality of adaptive partitions has a corresponding processor budget that is assigned to it. The process threads include a mutex holding thread and a mutex waiting thread. The mutex holding thread is associated with a first adaptive partition and may gain exclusive access to a mutex object. The mutex waiting thread is associated with a second adaptive partition and must wait for access to the mutex object while the mutex object is held by the mutex holding thread. The software code further includes a scheduling system that selectively allocates the processor to run the process threads based, at least in part, on the processor budget of the associated adaptive partitions. The scheduling system bills processor allocation used to run the mutex holding thread to the processor budget of the second adaptive partition when the processor budget of the first adaptive partition has been exhausted.

Abstract translation: 提出了一种包括处理器，一个或多个存储器单元和存储在一个或多个存储器存储单元中的软件代码的系统。 软件代码可由处理器执行以产生多个与一个或多个进程线程相关联的自适应分区。 多个自适应分区中的每一个具有分配给它的对应的处理器预算。 进程线程包括互斥锁持线程和互斥等待线程。 互斥保持线程与第一自适应分区相关联，并且可以获得对互斥体对象的独占访问。 互斥等待线程与第二自适应分区相关联，并且必须等待互斥对象的访问，而互斥体对象由互斥锁持线程保持。 软件代码还包括调度系统，其至少部分地基于相关联的自适应分区的处理器预算来选择性地分配处理器来运行处理线程。 当第一自适应分区的处理器预算已经用尽时，调度系统将处理器分配用于将互斥保持线程运行到第二自适应分区的处理器预算。

公开(公告)号：US20070226739A1

公开(公告)日：2007-09-27

申请号：US11317468

申请日：2005-12-22

Applicant: Dan Dodge ,  Attila Danko ,  Sebastien Marineau-Mes ,  Peter Veen ,  Colin Burgess ,  Thomas Fletcher ,  Brian Stecher

Inventor： Dan Dodge ,  Attila Danko ,  Sebastien Marineau-Mes ,  Peter Veen ,  Colin Burgess ,  Thomas Fletcher ,  Brian Stecher

IPC: G06F9/46

CPC classification number: G06F9/5038 ,  G06F9/4881 ,  G06F9/4887 ,  G06F9/505 ,  G06F9/5077

Abstract: A system is set forth that comprises a processor, such as a single processor or symmetric multiprocessor, and one or more memory storage units. The system also includes software code that is stored in the memory storage units. The software code is executable by the processor and comprises code for generating a plurality of adaptive partitions that are each associated with one or more software threads. Each of the adaptive partitions has a corresponding processor budget. The code also is executable to generate at least one sending thread and at least one receiving thread. The receiving thread responds to communications from the sending thread to execute one or more tasks corresponding to the communications. A scheduling system also forms at least part of the code that is executable by the processor. In operation, the scheduling system selectively allocates the processor to each sending and receiving thread based, at least in part, on the processor budget of the adaptive partition associated with the respective thread. In this type of sending/receiving environment, the scheduling system bills the processor budget of the adaptive partition associated with the sending thread for processor allocation used by the receiving thread to respond to communications sent by the sending thread.

Abstract translation: 提出了一种包括诸如单个处理器或对称多处理器的处理器以及一个或多个存储器存储单元的系统。 该系统还包括存储在存储器单元中的软件代码。 软件代码可由处理器执行，并且包括用于生成与一个或多个软件线程相关联的多个自适应分区的代码。 每个自适应分区具有相应的处理器预算。 代码也是可执行的，以生成至少一个发送线程和至少一个接收线程。 接收线程响应来自发送线程的通信，以执行与通信相对应的一个或多个任务。 调度系统还形成可由处理器执行的代码的至少一部分。 在操作中，调度系统至少部分地基于与相应线程相关联的自适应分区的处理器预算来选择性地将处理器分配给每个发送和接收线程。 在这种发送/接收环境中，调度系统对与发送线程相关联的自适应分区的处理器预算进行计费，以便接收线程使用的处理器分配来响应发送线程发送的通信。

公开(公告)号：US20060282654A1

公开(公告)日：2006-12-14

申请号：US11385253

申请日：2006-03-21

Applicant: Peter Veen ,  Colin Burgess

Inventor： Peter Veen ,  Colin Burgess

IPC: G06F15/177

CPC classification number: G06F9/4418 ,  G06F21/575

Abstract: A fast booting system decreases the boot time of a computer system, and allows the fast launching of applications on a subsequent reboot. The fast booting system stores data associated with fast boot applications in a non-volatile memory. On a subsequent reboot, the fast booting system reads the data and launches the fast boot applications to decrease boot time.

公开(公告)号：US20060206887A1

公开(公告)日：2006-09-14

申请号：US11216795

申请日：2005-08-31

Applicant: Dan Dodge ,  Attila Danko ,  Sebastien Marineau-Mes ,  Peter Veen ,  Colin Burgess ,  Thomas Fletcher ,  Brian Stecher

Inventor： Dan Dodge ,  Attila Danko ,  Sebastien Marineau-Mes ,  Peter Veen ,  Colin Burgess ,  Thomas Fletcher ,  Brian Stecher

IPC: G06F9/45

CPC classification number: G06F9/5038 ,  G06F9/4881 ,  G06F9/4887 ,  G06F9/505 ,  G06F9/5077

Abstract: An adaptive partition scheduler is a priority-based scheduler that also provides execution time guarantees (fair-share). Execution time guarantees apply to threads or groups of threads when the system is overloaded. When the system is not overloaded, threads are scheduled based strictly on priority, maintaining strict real-time behavior. Even when overloaded, the scheduler provides real-time guarantees to a set of critical threads, as specified by the system architect.