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1. 发明授权

US07451167B2 Verification of file system log data using per-entry checksums 有权
标题翻译：使用每入口校验和验证文件系统日志数据
公开(公告)号：US07451167B2
公开(公告)日：2008-11-11
申请号：US10692668
申请日：2003-10-24
申请人： Naveen Bali , Raymond C. Chen , Kayuri Patel , Alexander D. Petruncola
发明人： Naveen Bali , Raymond C. Chen , Kayuri Patel , Alexander D. Petruncola
IPC分类号： G06F17/30
CPC分类号： G06F11/10 , G06F11/1435 , G06F11/1471 , Y10S707/99935 , Y10S707/99939 , Y10S707/99943 , Y10S707/99953
摘要： A storage server provides a set of client devices with access to a set of mass storage devices. The storage server receives requests from the client devices, each request representing a storage operation to be performed by the storage server on the set of mass storage devices. The storage server maintains a log of write requests received from the client devices, the log including a separate log entry for each of the write requests, and a separate checksum in each of the log entries. Each checksum is for use by a checksum algorithm in determining data integrity of the corresponding log entry. The checksum algorithm is selected, from among a number of selectable a checksum algorithms, based on one or more predetermined criteria, such as a desired balance between performance and checksum strength.
摘要翻译：存储服务器为一组客户端设备提供对一组大容量存储设备的访问。存储服务器接收来自客户端设备的请求，每个请求表示存储服务器在该组大容量存储设备上执行的存储操作。存储服务器维护从客户端设备接收的写入请求的日志，该日志包括每个写入请求的单独的日志条目，以及每个日志条目中的单独的校验和。每个校验和由校验和算法用于确定相应日志条目的数据完整性。从多个可选择的校验和算法中，基于一个或多个预定标准（诸如性能和校验和强度之间的期望的平衡）来选择校验和算法。

2. 发明授权

US5872963A Resumption of preempted non-privileged threads with no kernel intervention 失效
标题翻译：恢复没有内核干预的抢占非特权线程
公开(公告)号：US5872963A
公开(公告)日：1999-02-16
申请号：US800968
申请日：1997-02-18
申请人： Nawaf K. Bitar , Robert M. English , Rajagopal Ananthanarayanan , Alexander D. Petruncola , David Craig
发明人： Nawaf K. Bitar , Robert M. English , Rajagopal Ananthanarayanan , Alexander D. Petruncola , David Craig
IPC分类号： G06F9/46 , G06F9/48 , G06F9/42 , G06F9/22
CPC分类号： G06F9/4843 , G06F9/461
摘要： A system and method for context switching between a first and a second execution entity (such as a thread) without having to enter into protected kernel mode. The system includes a memory and a plurality of processors, wherein each of the plurality of processors operates within both a user mode and a protected kernel mode and includes a program counter and a plurality N of registers. The first and second execution entities have user states defined by a program counter value, a context identifier value and N register values. To switch context, an execution entity such as a thread, while in user mode, writes the user state of the first execution entity to memory. It then restores the user state of the second execution entity by writing register values associated with the second execution entity to all but a first register and writing the context identifier value to a context identifier location. The program counter value is then written to the first register and a jump performed to the program counter value stored in the first register while the last remaining register value is loaded to the first register. Each of these steps is performed in user mode; the result is an efficient way of switching from one user thread to the next user thread without entry into kernel space.
摘要翻译：用于在第一和第二执行实体（诸如线程）之间进行上下文切换而不必进入受保护的内核模式的系统和方法。该系统包括存储器和多个处理器，其中多个处理器中的每一个处理器在用户模式和受保护的内核模式中都操作，并且包括程序计数器和多个N个寄存器。第一和第二执行实体具有由程序计数器值，上下文标识符值和N个寄存器值定义的用户状态。为了切换上下文，诸如线程的执行实体在用户模式下将第一执行实体的用户状态写入存储器。然后，它通过将与第二执行实体相关联的寄存器值写入除第一寄存器之外的所有者，并将上下文标识符值写入上下文标识符位置来恢复第二执行实体的用户状态。然后将程序计数器值写入第一个寄存器，并且将最后一个剩余寄存器值加载到第一个寄存器时，对存储在第一个寄存器中的程序计数器值执行跳转。这些步骤中的每一个都以用户模式执行; 结果是从一个用户线程切换到下一个用户线程而不进入内核空间的有效方式。

3. 发明授权

US08171480B2 Method and apparatus for allocating shared resources to process domains according to current processor utilization in a shared resource processor 有权
标题翻译：根据共享资源处理器中的当前处理器利用率来分配共享资源以处理域的方法和装置
公开(公告)号：US08171480B2
公开(公告)日：2012-05-01
申请号：US10829718
申请日：2004-04-21
申请人： Alexander D. Petruncola , Nareshkumar M. Patel , Grace Ho , Jeffrey S. Kimmel
发明人： Alexander D. Petruncola , Nareshkumar M. Patel , Grace Ho , Jeffrey S. Kimmel
IPC分类号： G06F9/46
CPC分类号： G06F9/5083 , G06F9/4843 , G06F11/3409
摘要： In a processing system which includes a physical processor that includes multiple logical processors, multiple domains are defined for multiple processes that can execute on the physical processor. Each of the processes is assigned to one of the domains. Processor utilization associated with the logical processors is measured, and each of the domains is allocated to a subset of the logical processors according to the processor utilization.
摘要翻译：在包括包括多个逻辑处理器的物理处理器的处理系统中，为可在物理处理器上执行的多个进程定义多个域。每个进程都分配给其中一个域。测量与逻辑处理器相关联的处理器利用率，并且根据处理器利用率将每个域分配给逻辑处理器的子集。

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