Software management systems and methods for automotive computing devices

• US 7,043,613 B2
• Filed: 05/27/2004
• Issued: 05/09/2006
• Est. Priority Date: 12/20/2000
• Status: Expired due to Fees

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Beckert, Richard D., Drasnin, Sharon, Radko, Ronald Otto
• Primary Examiner(s): BRAGDON, REGINALD GLENWOOD
• Application Number:
  US10/856,257
• Publication Number:
  US 20040221094A1
• Time in Patent Office: 712 Days
• Field of Search: 711/103, 711/104, 711/105, 711/159, 711/160, 711/156, 711/207, 711/206, 711/165
• US Class Current: 711/159
• CPC Class Codes: G06F 11/1441 Resetting or repowering
• CPC Class Codes: G06F 11/2015 Redundant power supplies power supply failure G06F1/30
• CPC Class Codes: G06F 12/08 in hierarchically structured memory systems, e.g. virtual memory systems
• CPC Class Codes: G06F 12/1009 using page tables, e.g. page table structures
• CPC Class Codes: G06F 12/1027 using associative or pseudo-associative address translation means, e.g. translation look-aside buffer [TLB]
• CPC Class Codes: G06F 12/122 of the least frequently used [LFU] type, e.g. with individual count value
• CPC Class Codes: G06F 2212/2022 Flash memory

Abstract

A method for facilitating fast start-up/shut-down of a computing device having a processor, volatile memory, non-volatile memory, and SRAM is described. In one embodiment, an object store for the computing device is provided in the non-volatile memory. A fast lossless shut-down of the computing device may be accomplished by periodically writing data from the object store to a non-volatile medium during operation of the computing device.

Claims

1. A method for facilitating fast start-up/shut-down of a computing device comprising:

providing a computer device comprising a processor, volatile memory, non-volatile memory, and SRAM;

wherein the non-volatile memory comprises one or more different types of non-volatile memory, at least one of which is a battery-backed SRAM;

providing an object store on the computing device;

wherein a fast lossless unexpected shut-down of the computing device may be accomplished by periodically writing object store pages to the battery-backed SRAM before the object store pages are dirtied during operation of the computing device.

2. The method of claim 1, wherein a fast start-up of the computing device may be accomplished by writing predetermined data from the object store to volatile memory.

3. The method of claim 1, wherein said periodically writing comprises maintaining object store page location information in the battery-backed SRAM.

4. The method of claim 1, wherein said periodically writing comprises:

maintaining object store page location information in the battery-backed SRAM;

periodically flushing at least portions of the battery-backed SRAM to a flash memory to make room in the battery-backed SRAM for additional object store pages; and

responsive to said flushing, updating the object store page location information in the battery-backed SRAM.