公开(公告)号：US09996271B2

公开(公告)日：2018-06-12

申请号：US14713075

申请日：2015-05-15

Applicant: Myung-June Jung ,  Ju-Pyung Lee ,  Gae-Won You ,  Hoshik Lee

Inventor： Myung-June Jung ,  Ju-Pyung Lee ,  Gae-Won You ,  Hoshik Lee

IPC: G06F12/00 ,  G06F13/00 ,  G06F13/28 ,  G06F3/06 ,  G06F12/0866 ,  G06F12/0862

CPC classification number: G06F3/061 ,  G06F3/0656 ,  G06F3/0659 ,  G06F3/0688 ,  G06F3/0689 ,  G06F12/0862 ,  G06F12/0866 ,  G06F2212/312 ,  G06F2212/6022 ,  G06F2212/604

Abstract: A storage controller includes a co-access pattern mining unit configured to detect co-access patterns of data co-accessed during a particular time duration and to generate co-access groups including a plurality of pieces of data complying with the co-access patterns. The storage controller further include a co-access group matching unit configured to select a co-access group matched with read-requested data, among the generated co-access groups, and a data placement unit configured to store the data included in the selected co-access group in a pre-fetch buffer.

公开(公告)号：US08892803B2

公开(公告)日：2014-11-18

申请号：US12880335

申请日：2010-09-13

Applicant: Ju-Pyung Lee

Inventor： Ju-Pyung Lee

IPC: G06F13/24

CPC classification number: G06F13/24

Abstract: Provided are an interrupt on/off management apparatus and method for a multi-core processor having a plurality of central processing unit (CPU) cores. The interrupt on/off management apparatus manages the multi-core processor such that at least one of two or more CPU cores included in a target CPU set can execute an urgent interrupt. For example, the interrupt on/off management apparatus controls the movement of each CPU core from a critical section to a non-critical section such that at least one of the CPU cores is located in the non-critical section. The critical section may include an interrupt-disabled section or a kernel non-preemptible section, and the non-critical section may include an interrupt-enabled section or include both of the interrupt-enabled section and a kernel preemptible section.

Abstract translation: 提供一种用于具有多个中央处理单元（CPU）核心的多核处理器的中断开/关管理装置和方法。 中断开/关管理装置管理多核处理器，使得包括在目标CPU集中的两个或多个CPU核中的至少一个可执行紧急中断。 例如，中断开/关管理装置控制每个CPU核心从关键部分到非关键部分的移动，使得至少一个CPU核心位于非关键部分。 关键部分可以包括中断禁止部分或内核非可抢占部分，并且非关键部分可以包括启用中断的部分或者包括中断使能部分和内核可抢占部分。

公开(公告)号：US20130227244A1

公开(公告)日：2013-08-29

申请号：US13595088

申请日：2012-08-27

Applicant: Myung-June Jung ,  Ju-Pyung Lee

Inventor： Myung-June Jung ,  Ju-Pyung Lee

IPC: G06F12/06

CPC classification number: G06F9/5072 ,  G06F2209/501

Abstract: A workload-aware distributed data processing apparatus and method for processing large data based on hardware acceleration are provided. The data processing apparatus includes a memory buffer including partitions. The data processing apparatus further includes a partition unit configured to distribute a mapping result to the partitions based on a partition proportion scheme. The data processing apparatus further includes a reduce node configured to receive content of a corresponding one of the partitions, and perform a reduction operation on the content to generate a reduce result.

Abstract translation: 提供了一种基于硬件加速处理大数据的工作负载感知分布式数据处理装置和方法。 数据处理装置包括具有分区的存储器缓冲器。 数据处理装置还包括：分区单元，被配置为基于分区比例方案将映射结果分配到分区。 数据处理装置还包括被配置为接收对应的一个分区的内容的减少节点，并且对内容进行缩减操作以生成减少结果。

公开(公告)号：US09342564B2

公开(公告)日：2016-05-17

申请号：US13590805

申请日：2012-08-21

Applicant: Myung-June Jung ,  Ju-Pyung Lee

Inventor： Myung-June Jung ,  Ju-Pyung Lee

IPC: G06F15/76 ,  G06F7/38 ,  G06F17/30

CPC classification number: G06F17/30545

Abstract: A distributed data processing apparatus and method through hardware acceleration are provided. The data processing apparatus includes a mapping node including mapping units configured to process input data in parallel to generate and output mapping results. The data processing apparatus further includes a shuffle node including shuffle units and a memory buffer, the shuffle units configured to process the mapping results output from the mapping units in parallel to generate and output shuffle results, and the shuffle node configured to write the shuffle results output from the shuffle units in the memory buffer. The data processing apparatus further includes a merge node including merge units configured to merge the shuffle results written in the memory buffer to generate merging results.

Abstract translation: 提供了一种通过硬件加速的分布式数据处理装置和方法。 数据处理装置包括映射节点，其包括被配置为并行处理输入数据的映射单元，以生成和输出映射结果。 所述数据处理装置还包括包括随机单元和存储器缓冲器的混洗节点，所述混洗单元被配置为并行处理从所述映射单元输出的映射结果，以生成和输出随机播放结果，并且所述随机播放节点被配置为写入所述随机播放结果 从内存缓冲区中的随机播放单元输出。 数据处理装置还包括合并节点，其包括被配置为合并写入存储器缓冲器中的混洗结果以产生合并结果的合并单元。

公开(公告)号：US20130111114A1

公开(公告)日：2013-05-02

申请号：US13619634

申请日：2012-09-14

Applicant: Ju-Pyung Lee

Inventor： Ju-Pyung Lee

IPC: G06F12/16

CPC classification number: G06F12/16 ,  G06F11/2094 ,  G06F11/3433 ,  G06F11/3485 ,  G06F21/00

Abstract: A distributed storage management apparatus includes a monitoring unit configured to monitor a request pattern of each storage node of a plurality of storage nodes configured to distributively store data and at least one replica of the data; a group setting unit configured to receive a request and classify the plurality of storage nodes into a safe group and an unsafe group based on the monitored request pattern of each storage node; and a request transfer unit configured to transfer the received request to the safe group.

Abstract translation: 分布式存储管理装置包括：监视单元，被配置为监视被配置为分配地存储数据的多个存储节点的每个存储节点的请求模式和数据的至少一个副本; 组设置单元，被配置为基于每个存储节点的所监视的请求模式来接收请求并将所述多个存储节点分类为安全组和不安全组; 以及请求传送单元，被配置为将接收到的请求传送到安全组。

公开(公告)号：US09846542B2

公开(公告)日：2017-12-19

申请号：US14682200

申请日：2015-04-09

Applicant: Jung-Min Seo ,  Ju-Pyung Lee

Inventor： Jung-Min Seo ,  Ju-Pyung Lee

IPC: G06F3/06 ,  G06F12/02 ,  G11C16/34

CPC classification number: G06F3/0616 ,  G06F3/0652 ,  G06F3/0655 ,  G06F3/0679 ,  G06F12/0246 ,  G06F2206/1014 ,  G06F2212/7205 ,  G06F2212/7211 ,  G11C16/349

Abstract: A storage controller that improves performance of a storage device by reducing the number of data I/O operations. The storage controller, as part of a storage device and a storage system, and in a method of operating the storage controller, includes a host interface receiving data requested for storage from a host and lifetime information indicating a change period of the data, and a data placement manager determining a storage position of the data in a flash memory based on the lifetime information of the data.

公开(公告)号：US09817717B2

公开(公告)日：2017-11-14

申请号：US14968472

申请日：2015-12-14

Applicant: Ju-Pyung Lee

Inventor： Ju-Pyung Lee

IPC: G06F11/00 ,  G06F11/10

CPC classification number: G06F11/1088 ,  G06F11/1044

Abstract: A stripe reconstituting method in a storage system, a garbage collection method employing the stripe reconstituting method, and the storage system performing the stripe reconstituting method are provided. The stripe reconstituting method includes the operations of selecting a target stripe in which an imbalance between valid page ratios of memory blocks included in the target stripe exceeds an initially-set threshold value, from among stripes produced in a log-structured storage system; and reconstituting a stripe by regrouping the memory blocks included in the target stripe such that the imbalance between the valid page ratios of the memory blocks included in the target stripe is reduced.

公开(公告)号：US08862840B2

公开(公告)日：2014-10-14

申请号：US13619634

申请日：2012-09-14

Applicant: Ju-Pyung Lee

Inventor： Ju-Pyung Lee

IPC: G06F12/08 ,  G06F21/00 ,  G06F12/16 ,  G06F11/20 ,  G06F11/34

CPC classification number: G06F12/16 ,  G06F11/2094 ,  G06F11/3433 ,  G06F11/3485 ,  G06F21/00

Abstract: A distributed storage management apparatus includes a monitoring unit configured to monitor a request pattern of each storage node of a plurality of storage nodes configured to distributively store data and at least one replica of the data; a group setting unit configured to receive a request and classify the plurality of storage nodes into a safe group and an unsafe group based on the monitored request pattern of each storage node; and a request transfer unit configured to transfer the received request to the safe group.

Abstract translation: 分布式存储管理装置包括：监视单元，被配置为监视被配置为分配地存储数据的多个存储节点的每个存储节点的请求模式和数据的至少一个副本; 组设置单元，被配置为基于每个存储节点的所监视的请求模式来接收请求并将所述多个存储节点分类为安全组和不安全组; 以及请求传送单元，被配置为将接收到的请求传送到安全组。

公开(公告)号：US09223689B2

公开(公告)日：2015-12-29

申请号：US13107551

申请日：2011-05-13

Applicant: Geun-Sik Lim ,  Sang-Bum Suh ,  Ju-Pyung Lee

Inventor： Geun-Sik Lim ,  Sang-Bum Suh ,  Ju-Pyung Lee

IPC: G06F12/02

CPC classification number: G06F12/023

Abstract: Provided is a memory management method, and an apparatus to perform the method, which achieves a shortened user waiting time in consideration of system performance. The method includes acquiring a deallocation unit used to deallocate an allocated memory area according to at least one attribute, and deallocating the allocated memory area using the deallocation unit.

Abstract translation: 提供了一种存储器管理方法和执行该方法的装置，其考虑到系统性能来实现缩短的用户等待时间。 该方法包括：根据至少一个属性获取用于取消分配分配的存储区域的解除分配单元，以及使用解除分配单元来分配所分配的存储区域。

公开(公告)号：US09983824B2

公开(公告)日：2018-05-29

申请号：US14451834

申请日：2014-08-05

Applicant: Ju-Pyung Lee

Inventor： Ju-Pyung Lee

IPC: G06F3/0484 ,  G06F3/06 ,  G06F11/20

CPC classification number: G06F3/065 ,  G06F3/0604 ,  G06F3/0659 ,  G06F3/0689 ,  G06F11/2087 ,  G06F2201/825

Abstract: A data mirroring control apparatus includes a command distributing unit configured to transmit a first write command to a plurality of mirroring storage devices, the first write command including an instruction for data requested by a host to be written; and a memory lock setting unit configured to set a memory lock on the data requested by the host to be written among data stored in a host memory and configured to release the memory lock on the data after the data with the memory lock is written to the plurality of mirroring storage devices.