公开(公告)号：US09438501B2

公开(公告)日：2016-09-06

申请号：US11465851

申请日：2006-08-21

申请人： Ganesh Balakrishnan ,  Jorge R. Rodriguez

发明人： Ganesh Balakrishnan ,  Jorge R. Rodriguez

IPC分类号： H04L12/26 ,  H04L12/24

CPC分类号： H04L43/50 ,  H04L41/145

摘要： Embodiments of the present invention provide a method, system and computer program product for multi-scale network traffic generation. In one embodiment of the invention, a network traffic generation method can be provided. The method can include defining multiple, different scales in an n-state MMPP model to accommodate a full characteristic response of a modeled traffic scenario. The method further can include establishing a transition window for each of the scales and determining a state through the transition window for selected ones of the scales. Finally, the method can include computing an inter-packet time according to the determined state for each of the selected ones of the scales and generating and transmitting packets for the selected ones of the scales utilizing a correspondingly computed inter-packet time.

摘要翻译： 本发明的实施例提供了一种用于多尺度网络流量生成的方法，系统和计算机程序产品。 在本发明的一个实施例中，可以提供网络流量生成方法。 该方法可以包括在n状态MMPP模型中定义多个不同的尺度以适应建模的流量场景的完整特征响应。 该方法还可以包括为每个标度建立转换窗口，并通过用于选定尺度的转换窗口确定状态。 最后，该方法可以包括根据所选定尺度的每一个的所确定的状态来计算分组间时间，并且使用相应计算的分组间时间来生成和发送所选择的尺度的分组。

公开(公告)号：US08914570B2

公开(公告)日：2014-12-16

申请号：US13464084

申请日：2012-05-04

申请人： Ganesh Balakrishnan ,  Anil Krishna

发明人： Ganesh Balakrishnan ,  Anil Krishna

IPC分类号： G06F12/00

CPC分类号： G06F12/0866 ,  G06F12/0246 ,  G06F2212/222 ,  G06F2212/40 ,  Y02D10/13

摘要： In a method for storing data in a flash memory array, the flash memory array includes a plurality of physical pages. The method includes receiving a request to perform a data access operation through a communication bus. The request includes data and a logical page address. The method further includes allocating one or more physical pages of the flash memory array to perform the data access operation. The method further includes, based on a historical usage data of the flash memory array, selectively encoding the data contained in the logical page into the one or more physical pages.

摘要翻译： 在将数据存储在闪存阵列中的方法中，闪存阵列包括多个物理页。 该方法包括通过通信总线接收执行数据访问操作的请求。 该请求包括数据和逻辑页面地址。 该方法还包括分配闪存阵列的一个或多个物理页面以执行数据访问操作。 该方法还包括基于闪速存储器阵列的历史使用数据，选择性地将包含在逻辑页面中的数据编码到一个或多个物理页面中。

公开(公告)号：US20130173849A1

公开(公告)日：2013-07-04

申请号：US13525017

申请日：2012-06-15

申请人： Ganesh Balakrishnan ,  Anil Krishna

发明人： Ganesh Balakrishnan ,  Anil Krishna

IPC分类号： G06F12/02

CPC分类号： G06F3/0613 ,  G06F3/0659 ,  G06F3/0679 ,  G06F9/5016

摘要： Embodiments of the present invention provide a flash memory device write-access management amongst different virtual machines (VMs) in a virtualized computing environment. In one embodiment, a virtualized computing data processing system can include a host computer with at least one processor and memory and different VMs executing in the host computer. The system also can include a flash memory device coupled to the host computer and accessible by the VMs. Finally, a flash memory controller can manage access to the flash memory device. The controller can include program code enabled to compute a contemporaneous bandwidth of requests for write operations for the flash memory device, to allocate a corresponding number of tokens to the VMs, to accept write requests to the flash memory device from the VMs only when accompanied by a token and to repeat the computing, allocating and accepting after a lapse of a pre-determined time period.

摘要翻译： 本发明的实施例提供了在虚拟化计算环境中的不同虚拟机（VM）之间的闪存设备写访问管理。 在一个实施例中，虚拟化计算数据处理系统可以包括具有至少一个处理器和存储器的主计算机以及在主计算机中执行的不同VM。 该系统还可以包括耦合到主机并且可由VM访问的闪存设备。 最后，闪存控制器可以管理对闪存设备的访问。 控制器可以包括能够计算用于闪速存储器设备的写入操作的同时期带宽的程序代码，以向VM分配相应数量的令牌，以便仅在VM附带时才从VM接受对闪存设备的写入请求 令牌，并在经过预定时间段之后重复计算，分配和接受。

公开(公告)号：US20130173843A1

公开(公告)日：2013-07-04

申请号：US13339685

申请日：2011-12-29

申请人： Ganesh BALAKRISHNAN ,  Anil KRISHNA

发明人： Ganesh BALAKRISHNAN ,  Anil KRISHNA

IPC分类号： G06F12/02

CPC分类号： G06F3/0613 ,  G06F3/0659 ,  G06F3/0679 ,  G06F9/5016

摘要： Embodiments of the present invention provide a flash memory device write-access management amongst different virtual machines (VMs) in a virtualized computing environment. In one embodiment, a virtualized computing data processing system can include a host computer with at least one processor and memory and different VMs executing in the host computer. The system also can include a flash memory device coupled to the host computer and accessible by the VMs. Finally, a flash memory controller can manage access to the flash memory device. The controller can include program code enabled to compute a contemporaneous bandwidth of requests for write operations for the flash memory device, to allocate a corresponding number of tokens to the VMs, to accept write requests to the flash memory device from the VMs only when accompanied by a token and to repeat the computing, allocating and accepting after a lapse of a pre-determined time period.

摘要翻译： 本发明的实施例提供了在虚拟化计算环境中的不同虚拟机（VM）之间的闪存设备写访问管理。 在一个实施例中，虚拟化计算数据处理系统可以包括具有至少一个处理器和存储器的主计算机以及在主计算机中执行的不同VM。 该系统还可以包括耦合到主机并且可由VM访问的闪存设备。 最后，闪存控制器可以管理对闪存设备的访问。 控制器可以包括能够计算用于闪速存储器设备的写入操作的同时期带宽的程序代码，以向VM分配相应数量的令牌，以便仅在VM附带时才从VM接受对闪存设备的写入请求 令牌，并在经过预定时间段之后重复计算，分配和接受。

公开(公告)号：US08121031B2

公开(公告)日：2012-02-21

申请号：US12131695

申请日：2008-06-02

申请人： Ganesh Balakrishnan ,  Jorge R. Rodriguez

发明人： Ganesh Balakrishnan ,  Jorge R. Rodriguez

IPC分类号： H04L12/26

CPC分类号： H04L43/50 ,  H04L41/145

摘要： A design structure embodied in a machine readable storage medium for at least one of designing, manufacturing, and testing a design is provided. The design structure includes a network traffic generation system. The system can include a Markov modified Poisson process (MMPP) model, a packet scheduler coupled to the MMP model, a data store of transition windows defined for different defined scales, traffic generation parameter computing logic comprising program code enabled to compute traffic generation parameters for different scales according to respective states identified within different transition windows in the data store for the different scales, and a packet transmitter coupled to the packet scheduler.

摘要翻译： 提供了一种体现在用于设计，制造和测试设计中的至少一个的机器可读存储介质中的设计结构。 该设计结构包括网络流量生成系统。 该系统可以包括马尔科夫修改的泊松过程（MMPP）模型，耦合到MMP模型的分组调度器，为不同的定义的比例定义的转换窗口的数据存储，业务生成参数计算逻辑，包括能够计算流量生成参数的程序代码 根据在不同尺度的数据存储器中的不同转换窗口内识别的各个状态的不同尺度，以及耦合到分组调度器的分组发送器。

公开(公告)号：US07697428B2

公开(公告)日：2010-04-13

申请号：US11514493

申请日：2006-09-01

申请人： Ganesh Balakrishnan ,  Jorge R. Rodriguez

发明人： Ganesh Balakrishnan ,  Jorge R. Rodriguez

IPC分类号： G01R31/08

CPC分类号： H04L41/142 ,  H04L41/145 ,  H04L43/0852 ,  H04L43/106

摘要： Methods, apparatus, and products are disclosed for analyzing network traffic using an improved Markov Modulated Poisson Process Model with two barrier states that include: retrieving a previous state for the network traffic; measuring inter-arrival times between individual packets received in one or more network adapters; establishing a transition window in dependence upon the measured inter-arrival times, the transition window having a transition value λBmax that represents an upper boundary for the inter-arrival times in a bursty state and having a transition value λImin that represents a lower boundary for the inter-arrival times in an idle state; retrieving a previous fence value that prevents premature transitions into the idle state or the bursty state; and determining a current state for the network traffic in dependence upon the previous state for the network traffic, an inter-arrival time of a most recently received packet, the transition values, and the previous fence value.

摘要翻译： 公开了用于使用具有两个障碍状态的改进的马尔科夫调制泊松过程模型来分析网络流量的方法，装置和产品，其包括：检索用于网络流量的先前状态; 测量在一个或多个网络适配器中接收的各个分组之间的到达之间的时间; 根据所测量的到达之间的时间建立转换窗口，转换窗口具有表示突发状态的到达之间时间的上边界的转换值λBmax，并且具有表示下一个边界的转移值λImin 到达时间处于闲置状态; 检索防止过早转换到空闲状态或突发状态的先前栅栏值; 以及根据网络业务的先前状态，最近接收到的分组的到达之间时间，转换值和先前的围栏值来确定网络业务的当前状态。

公开(公告)号：US20100051900A1

公开(公告)日：2010-03-04

申请号：US12332014

申请日：2008-12-10

申请人： Diana L. Huffaker ,  Larry R. Dawson ,  Ganesh Balakrishnan

发明人： Diana L. Huffaker ,  Larry R. Dawson ,  Ganesh Balakrishnan

IPC分类号： H01L33/00

CPC分类号： H01S5/183 ,  B82Y20/00 ,  H01L27/14643 ,  H01L31/03046 ,  H01S5/021 ,  H01S5/0218 ,  H01S5/34306 ,  H01S2301/173 ,  Y02E10/544

摘要： Exemplary embodiments provide high-quality layered semiconductor devices and methods for their fabrication. The high-quality layered semiconductor device can be formed in planar with low defect densities and with strain relieved through a plurality of arrays of misfit dislocations formed at the interface of highly lattice-mismatched layers of the device. The high-quality layered semiconductor device can be formed using various materials systems and can be incorporated into various opto-electronic and electronic devices. In an exemplary embodiment, an emitter device can include monolithic quantum well (QW) lasers directly disposed on a SOI or silicon substrate for waveguide coupled integration. In another exemplary embodiment, a superlattice (SL) photodetector and its focal plane array can include a III-Sb active region formed over a large GaAs substrate using SLS technologies.

摘要翻译： 示例性实施例提供用于其制造的高质量分层半导体器件和方法。 高品质层状半导体器件可以以低缺陷密度形成为平面，并且通过形成在器件的高度格子失配层的界面处的多个失配位错阵列而释放应变。 高质量的分层半导体器件可以使用各种材料系统形成，并且可以并入到各种光电子和电子器件中。 在示例性实施例中，发射器件可以包括直接设置在SOI或硅衬底上用于波导耦合整合的单片量子阱（QW）激光器。 在另一示例性实施例中，超晶格（SL）光电检测器及其焦平面阵列可以包括使用SLS技术在大型GaAs衬底上形成的III-Sb有源区。

公开(公告)号：US20090198886A1

公开(公告)日：2009-08-06

申请号：US12026014

申请日：2008-02-05

申请人： Ganesh Balakrishnan

发明人： Ganesh Balakrishnan

IPC分类号： G06F12/00

CPC分类号： G06F3/064 ,  G06F3/0625 ,  G06F3/0689 ,  Y02D10/154

摘要： Operating a composite array of data storage devices, such as hard disk drives, to conserve power includes storing data in block-level stripes with parity on a composite array including a controller and at least three data storage devices. The composite array includes a hot spare distributed across the data storage devices. The method further comprises placing one of the data storage devices in a standby state, operating the rest of the data storage devices in an active state, and controlling logical operations of the controller and the read and write operations of the active data storage devices to substitute for read and write operations on the standby device. For example, the controller can read redundant data on the active drives and compute data identical to the data on the standby drive to substitute for reading the standby drive. Furthermore, the controller can write a modified version of data on the standby drive to a spare block to substitute for writing to the standby drive.

摘要翻译： 操作数据存储设备（例如硬盘驱动器）的复合阵列以节省功率包括以包括控制器和至少三个数据存储设备的复合阵列上的奇偶校验的块级条带存储数据。 复合阵列包括分布在数据存储设备上的热备份。 该方法还包括将数据存储设备中的一个置于待机状态，将其余数据存储设备操作为活动状态，以及控制控制器的逻辑操作和活动数据存储设备的读写操作以替代 用于在备用设备上进行读写操作。 例如，控制器可以读取有源驱动器上的冗余数据，并计算与备用驱动器上的数据相同的数据，以替代读取备用驱动器。 此外，控制器可以将备用驱动器上的数据的修改版本写入备用块以替代对备用驱动器的写入。

公开(公告)号：US20080206966A1

公开(公告)日：2008-08-28

申请号：US11326432

申请日：2006-01-06

申请人： Diana L. Huffaker ,  Larry R. Dawson ,  Ganesh Balakrishnan

发明人： Diana L. Huffaker ,  Larry R. Dawson ,  Ganesh Balakrishnan

IPC分类号： H01L21/20

CPC分类号： H01L21/02502 ,  B82Y10/00 ,  H01L21/02381 ,  H01L21/02463 ,  H01L21/02466 ,  H01L21/02513 ,  H01L21/02546 ,  H01L21/02549 ,  Y10S438/962 ,  Y10S977/774

摘要： Lattice mismatched epitaxy and methods for lattice mismatched epitaxy are provided. The method includes providing a growth substrate and forming a plurality of quantum dots, such as, for example, AlSb quantum dots, on the growth substrate. The method further includes forming a crystallographic nucleation layer by growth and coalescence of the plurality of quantum dots, wherein the nucleation layer is essentially free from vertically propagating defects. The method using quantum dots can be used to overcome the restraints of critical thickness in lattice mismatched epitaxy to allow effective integration of various existing substrate technologies with device technologies.

摘要翻译： 提供晶格失配外延和晶格失配外延的方法。 该方法包括提供生长衬底并在生长衬底上形成多个量子点，例如AlSb量子点。 该方法还包括通过多个量子点的生长和聚结来形成晶体成核层，其中成核层基本上没有垂直传播的缺陷。 使用量子点的方法可用于克服晶格失配外延中临界厚度的限制，从而有效地将各种现有的衬底技术与器件技术相结合。

公开(公告)号：US20080056131A1

公开(公告)日：2008-03-06

申请号：US11468842

申请日：2006-08-31

申请人： Ganesh Balakrishnan ,  Jorge R. Rodriguez

发明人： Ganesh Balakrishnan ,  Jorge R. Rodriguez

IPC分类号： H04L12/26

CPC分类号： H04L41/147 ,  H04L41/142 ,  H04L43/0858 ,  H04L43/10 ,  H04L43/50

摘要： Methods and products are disclosed for analyzing network traffic using an improved Markov Modulated Poisson Process Model with one bursty state and a plurality of idle states that include: establishing a time scale of operation for each state in the improved MMPP model; establishing a transition value for each state in dependence upon the time scale of operation for the state; measuring inter-arrival times between individual packets received in one or more network adapters; and determining a current state for the network traffic independence upon the measured inter-arrival time of a most recently received packet and the transition values.

摘要翻译： 公开了用于使用具有一个突发状态和多个空闲状态的改进的马尔科夫调制泊松过程模型来分析网络流量的方法和产品，其包括：为改进的MMPP模型中的每个状态建立操作的时间尺度; 根据国家的经营时间规模，为每个国家建立转型价值; 测量在一个或多个网络适配器中接收的各个分组之间的到达之间的时间; 以及在所测量的最近接收的分组的到达之间时间和所述转换值之后，确定所述网络流量独立性的当前状态。