公开(公告)号：JP2004192612A

公开(公告)日：2004-07-08

申请号：JP2003368054

申请日：2003-10-28

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： RAWSON FREEMAN LEIGH

IPC: G06F1/32 ,  G06F1/04 ,  G06F9/00 ,  G06F9/44 ,  G06F9/46 ,  G06F9/50

CPC classification number: G06F1/3203 ,  G06F1/3268 ,  G06F1/3275 ,  G06F9/5077 ,  G06F9/5094 ,  G06F2209/5014 ,  Y02D10/126 ,  Y02D10/13 ,  Y02D10/14 ,  Y02D10/154 ,  Y02D10/22 ,  Y02D10/36

Abstract: PROBLEM TO BE SOLVED: To provide a logically segmented processing system and a corresponding usage conscious of power including a set of physical resources and a hypervisor. SOLUTION: The hypervisor generates sections and allocates at least some of the physical resources to the sections. The system further comprises a means for reducing power to be consumed by an optional physical resource which is not allocated to the sections. The hypervisor can allocate the physical resources to the sections for the purpose of maximizing the number of physical resources which cannot be allocated. The physical resources can include processors and the hypervisor can allocate a part of at least one processor to the sections. For this embodiment, the system can reduce power consumption by scaling supplied voltage or a clock frequency to the partially allocated processors. COPYRIGHT: (C)2004,JPO&NCIPI

公开(公告)号：BR9502801A

公开(公告)日：1997-08-05

申请号：BR9502801

申请日：1995-06-14

Applicant: IBM

Inventor： MAGEE JAMES MICHAEL ,  RAWSON FREEMAN LEIGH ,  GIL SOTOMAYOR GUY

IPC: G06F9/46 ,  G06F12/10 ,  G06F12/12 ,  G06F12/14 ,  G06F9/28

Abstract: A memory management method for a microkernel architecture and the microkernel itself feature template regions which are defined by the microkernel in the memory, as special objects. In the memory management method, after the microkernel is loaded into the memory of a data processing system, it begins creating task containers in the memory. It does this by forming template regions as special objects in the memory, the template regions having a set of attributes. Then, when the microkernel forms a task in the memory, it does so by mapping the template region into the task. The microkernel defines a virtual address space for the task based upon the template region. Later, when the microkernel conducts virtual memory operations on the template regions, the effect of the virtual memory operations is manifested in the task by means of the mapping relationship. In this manner, a single template region can be mapped into multiple tasks, simultaneously. By directing virtual memory operations to the template region on which they will take effect, the sharing of the virtual memory operations is much easier to accomplish since the changes are made to a template region, not to the mapping of the template region within each task.

公开(公告)号：DE60231221D1

公开(公告)日：2009-04-02

申请号：DE60231221

申请日：2002-08-23

Applicant: IBM

Inventor： BOHRER PATRICK JOSEPH ,  BROCK BISHOP CHAPMAN ,  ELNOZAHY ELMOOTAZBELLAH NABIL ,  RAJAMONY RAMAKRISHNAN ,  RAWSON FREEMAN LEIGH

IPC: G06F9/46 ,  G06F1/32 ,  H04L29/06 ,  H04L29/08

Abstract: A data processing network and method for conserving energy in which an initial negotiation between a network server and a switch to which the server is connected is performed to establish an initial operating frequency of the server-switch link. An effective data rate of the server is determined based on network traffic at the server. Responsive to determining that the effective data rate is materially different than the current operating frequency, a subsequent negotiation is performed to establish a modified operating frequency where the modified operating frequency is closer to the effective data rate than the initial operating frequency. The determination of the effective date rate and the contingent initiation of a subsequent negotiation may be repeated periodically during the operating of the network. In one embodiment, the initial and subsequent negotiation are compliant with the IEEE 802.3 standard.