Patent Tips - 随笔分类(第2页) - CoryXie

基于页面染色技术的内存数据库访问优化方法

摘要：本发明公开了一种基于页面染色技术的内存数据库访问优化方法。该方法首先将弱局部性数据集的所有数据页面的访问顺序按页面颜色进行排序，并将所有数据页面按页面颜色进行分组，然后按页面颜色分组的顺序扫描弱局部性数据集的所有数据页面。进一步地，预设若干具有相同页面颜色的内存页面作为页面颜色队列，该页面颜色队列用作内存页面被加载入CPU缓存之前的内存缓存；弱局部性数据集的数据页面首先通过异步方式进入页面颜色队列... 阅读全文

posted @ 2014-09-25 01:44 CoryXie

Security arrangements for extended USB protocol stack of a USB host system

摘要：Securityarrangements for a universal serial bus (USB) protocol stack of aUSB host system are provided. Thesecurityarrangements prevent an unauthorized or suspiciousUSBdevice from communicating w... 阅读全文

posted @ 2014-09-24 10:25 CoryXie

Snoop resynchronization mechanism to preserve read ordering

摘要：A processor employing a post-cache (LS2) buffer. Loads are stored into the LS2buffer after probing the data cache. The load/store unit snoops the loads in the LS2buffer against snoop requests receive... 阅读全文

posted @ 2014-09-24 00:14 CoryXie

Speculative store buffer

摘要：A speculativestorebuffer is speculatively updated in response to speculative storememory operations buffered by aload/storeunit in a microprocessor. Instead of performing dependency checking for... 阅读全文

posted @ 2014-09-23 23:57 CoryXie

Method and system for early speculative store-load bypass

摘要：In an embodiment, the present invention describes a method and apparatus for detecting RAW condition earlier in an instruction pipeline. Thestoreinstructions are stored in a specialstorebypass buf... 阅读全文

posted @ 2014-09-23 23:37 CoryXie

Separate code and data contexts: an architectural approach to virtual text sharing

摘要：The present invention provides a processor including a core unit for processing requests from at least oneprocess. The at least oneprocesshas a code portion with at least one segment having a first... 阅读全文

posted @ 2014-09-23 22:22 CoryXie

Method, apparatus and system for acquiring a global promotion facility utilizing a data-less transaction

摘要：A data processing system includes a global promotion facility and a plurality of processors coupled by an interconnect. In response to execution of an acquisition instruction by a first processor amon... 阅读全文

posted @ 2014-09-23 21:52 CoryXie

Operating system management of address-translation-related data structures and hardware lookasides

摘要：An approach is provided in a hypervised computer system where a page table request is at an operating system running in the hypervised computer system. The operating system determines whether the page... 阅读全文

posted @ 2014-09-23 21:30 CoryXie

Partitioned Replacement for Cache Memory

摘要：In a particular embodiment, a circuit device includes a translation look-aside buffer (TLB) configured to receive a virtual address and to translate the virtual address to a physical address of a cach... 阅读全文

posted @ 2014-09-22 23:16 CoryXie

Multiprocessing system employing pending tags to maintain cache coherence

摘要：A pending tag system and method to maintain data coherence in a processing node during pending transactions in a transaction pipeline. A pending tag storage unit may be coupled to a cache controller a... 阅读全文

posted @ 2014-09-22 16:44 CoryXie

Extended symmetrical multiprocessor architecture

摘要：An architecture for an extended multiprocessor (XMP) computer system is provided. The XMP computer system includes multiple SMP nodes. Each SMP node includes an XMP interface and a repeater structure ... 阅读全文

posted @ 2014-09-22 16:34 CoryXie

Non-inclusive cache method using pipelined snoop bus

摘要：A non-inclusive cache system includes an external cache and a plurality of on-chip caches each having a set of tags associated therewith, with at least one of the on-chip caches including data which i... 阅读全文

posted @ 2014-09-22 13:18 CoryXie

Parallelized coherent read and writeback transaction processing system for use in a packet switched cache coherent multiprocessor system

摘要：A multiprocessor computer system is provided having a multiplicity of sub-systems and a main memory coupled to a system controller. An interconnect module, interconnects the main memory and sub-system... 阅读全文

posted @ 2014-09-22 00:00 CoryXie

A multiprocessing system including an apparatus for optimizing spin-lock operations

摘要：A multiprocessing system having a plurality of processing nodes interconnected by an interconnect network. To optimize performance during spin-lock operations, a home agent prioritizes the servicing o... 阅读全文

posted @ 2014-09-21 23:16 CoryXie

Linux I/O scheduler for solid-state drives

摘要：An I/O scheduler and a method for scheduling I/O requests to a solid-state drive (SSD) is disclosed. The I/O scheduler in accordance with the present disclosure bundles the write requests in such a fo... 阅读全文

posted @ 2014-09-20 23:00 CoryXie

Binary search tree system and method

摘要：Abinarysearchtreeis provided for efficiently organizing values for a set of items, even when values are duplicated. In generating thebinarysearchtree,... 阅读全文

posted @ 2014-09-18 22:34 CoryXie

Method and apparatus for speculative execution of uncontended lock instructions

摘要：A method and apparatus for executing lock instructions speculatively in an out-of-order processor are disclosed. In one embodiment, a prediction is made whether a given lock instruction will actually ... 阅读全文

posted @ 2014-09-18 00:40 CoryXie

Adaptively handling remote atomic execution based upon contention prediction

摘要：In one embodiment, a method includes receiving an instruction for decoding in a processor core and dynamically handling the instruction with one of multiple behaviors based on whether contention is pr... 阅读全文

posted @ 2014-09-18 00:33 CoryXie

Method and apparatus for an atomic operation in a parallel computing environment

摘要：A method and apparatus for aatomicoperationis described. A method comprises receiving a first program unit in a parallel computing environment, the first program unit including a memory updateoper... 阅读全文

posted @ 2014-09-17 23:51 CoryXie

Efficient ticket lock synchronization implementation using early wakeup in the presence of oversubscription

摘要：A turn-oriented thread and/or process synchronization facility obtains a ticket value from a monotonically increasing ticket counter and waits until a memory location contains a value equal to the tic... 阅读全文

posted @ 2014-09-17 23:39 CoryXie

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