Patents Examined by Shawn X. Gu
  • Patent number: 11455239
    Abstract: Methods and systems related to memory reduction in a system by oversubscribing physical memory shared among compute entities are provided. A portion of the memory includes a combination of a portion of a first physical memory of a first type and a logical pooled memory associated with the system. A logical pooled memory controller is configured to: (1) track both a status of whether a page of the logical pooled memory allocated to any of the plurality of compute entities is a known-pattern page and a relationship between logical memory addresses and physical memory addresses associated with any allocated logical pooled memory, and (2) allow the write operation to write data to any available space in the second physical memory of the first type only up to an extent of physical memory that corresponds to the portion of the logical pooled memory previously allocated to the compute entity.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: September 27, 2022
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Monish Shantilal Shah, Lisa Ru-feng Hsu, Daniel Sebastian Berger
  • Patent number: 11455120
    Abstract: A memory system may include: a memory device comprising a plurality of channels, a plurality of dies coupled to the respective channels, and a plurality of super blocks; and a controller suitable for controlling the memory device, wherein the controller includes: a detector suitable for searching for a first available reserved block in a first die, when a bad block has occurred in the first die which is coupled to a first channel and belongs to a first super block group, and searching for a second available reserved block in a second die which is coupled to the first channel and belongs to a second super block group when the first available reserved block is not present in the first die; and an assignor suitable for replacing the bad block with the second available reserved block when the second available reserved block is present.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: September 27, 2022
    Assignee: SK hynix Inc.
    Inventors: Duck-Hoi Koo, Yong-Tae Kim
  • Patent number: 11455216
    Abstract: A method that is performed for backing up data. The method includes obtaining an incremental backup request; and in response to the incremental backup request: obtaining an asset and an asset entry associated with the incremental backup request; dividing the asset into pseudo-assets based on the asset entry; storing the pseudo-assets across backup storages to generate incremental pseudo-asset backups; initiating the merging of the incremental pseudo-asset backups to generate an incremental asset backup; and initiating the merging of the incremental asset backup with a previously generated full asset backup associated with the incremental backup request to generate a first synthetic full asset backup.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: September 27, 2022
    Assignee: EMC IP Holding Company LLC
    Inventors: Manish Sharma, Aaditya Rakesh Bansal, Shelesh Chopra, Sunil Yadav
  • Patent number: 11449420
    Abstract: A method may include receiving, by a first computing system, a first request from a first client device to download content. The method may further include receiving, by the first computing system from a second computing system, first information. The first information may be indicative of a first version of the content that the first client device is authorized to download and a source from which the first version of the content can be downloaded. The method may also include determining, by the first computing system and based at least in part on the first information, that the first version of the content is already present on the first computing system. The method may additionally include sending, from the first computing system to the first client device, the first version of the content or second information, the second information indicative of the first version of the content.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: September 20, 2022
    Assignee: Citrix Systems, Inc.
    Inventors: Tirupati Reddy Bonam, Sasmita Patra, Navaneetha Subramanian, Abhishek Gupta, Srinivasa Rao Sanchula
  • Patent number: 11449432
    Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to evict in a dual datapath victim cache system. An example apparatus includes a cache storage, a cache controller operable to receive a first memory operation and a second memory operation concurrently, comparison logic operable to identify if the first and second memory operations missed in the cache storage, and a replacement policy component operable to, when at least one of the first and second memory operations corresponds to a miss in the cache storage, reserve an entry in the cache storage to evict based on the first and second memory operations.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: September 20, 2022
    Assignee: Texas Instruments Incorporated
    Inventors: Naveen Bhoria, Timothy David Anderson, Pete Michael Hippleheuser
  • Patent number: 11442896
    Abstract: Techniques disclosed herein are used for restoring deduplicated backup data from cloud-based storage and from multi-node replicated files systems, and they also may be used in more traditional data storage technologies. Pre-restore steps include analysis of deduplication indexes to identify data segments that are stored consecutively on storage media. Reading data in aggregate runs of consecutively stored data segments reduces interactions with storage media that hosts the deduplicated data and speeds up retrieval. Parallel reads from multiple storage devices in multi-node replicated file systems also speed up retrieval. An illustrative enhanced media agent pre-fetches data (stored in deduplicated form) in anticipation of read requests that are expected in the restore operation.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: September 13, 2022
    Assignee: Commvault Systems, Inc.
    Inventors: Saurabh Agrawal, Manoj Kumar Vijayan
  • Patent number: 11442730
    Abstract: A computer comprising one or more processors and memory may implement multiple threads that perform a lock operation using a data structure comprising an allocation field and a grant field. Upon entry to a lock operation, a thread allocates a ticket by atomically copying a ticket value contained in the allocation field and incrementing the allocation field. The thread compares the allocated ticket to the grant field. If they are unequal, the thread determines a number of waiting threads. If the number is above the threshold, the thread enters a long term wait operation comprising determining a location for long term wait value and waiting on changes to that value. If the number is below the threshold or the long term wait operation is complete, the thread waits for the grant value to equal the ticket to indicate that the lock is allocated.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: September 13, 2022
    Assignee: Oracle International Corporation
    Inventors: David Dice, Alex Kogan
  • Patent number: 11442832
    Abstract: Examples described herein relate to a system including a first management system having a primary memory including a free memory, a used memory, and a loosely reserved memory, where the loosely reserved memory comprises cache memory having a reclaimable memory; and a processing resource coupled to the primary memory. The processing resource may monitor an amount of the used memory and an amount of an available memory during runtime of the first management system. Further, the processing resource may enable a synchronized reboot of the first management system if the amount of the used memory is greater than a memory exhaustion first threshold or the amount of the available memory is less than a memory exhaustion second threshold, wherein the memory exhaustion first threshold and the memory exhaustion second threshold are determined based on usage of the reclaimable memory and a number of major page faults.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: September 13, 2022
    Assignee: Hewlett Packard Enterprise Development LP
    Inventor: Christopher Murray
  • Patent number: 11436135
    Abstract: Systems and methods for implementing polymorphic allocators in an operating system are disclosed. An illustrative method includes a method of allocating memory space in a memory by creating a first allocator. In response to receiving a first request to allocate memory space in the memory for a data buffer instance using the first allocator, the method allocates one or more pages of a first region in the memory by populating one or more entries of an allocator table. The one or more entries of the allocator table correspond to the one or more pages of the first region. The entries of the allocator table are indexed by page indexes corresponding to page addresses identifying the pages of the first region in the memory. Each of the populated entries of the allocator table includes a specific allocator identifier identifying a corresponding allocator to that entry.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: September 6, 2022
    Assignee: Arista Networks, Inc.
    Inventors: Duncan Stuart Ritchie, Christopher Elisha Neilson, Sebastian Sapa
  • Patent number: 11436106
    Abstract: A efficient method for long-term retention backup policy within recovery point objectives (RPO). Specifically, the disclosed method proposes a dynamic promotion scheme through which short-term retention backup copies, in compliance with specified long-term retention RPOs, may be promoted to render long-term retention backup copies. Further, the disclosed method not only looks to past and/or presently dated short-term retention backup copies, but also looks to prospective (or future) dated short-term retention backup copies, which are expected or predicted to be produced, for promotion. Moreover, in circumstances where there are no appropriate past, present, or future dated short-term retention backup copies to promote, the disclosed method triggers new backup operations to acquire the long-term retention backup copies necessary to maintain the specified long-retention RPOs.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: September 6, 2022
    Assignee: EMC IP HOLDING COMPANY LLC
    Inventors: Mengze Liao, Scott Randolph Quesnelle, Jinru Yan, Xiaoliang Zhu, Xiaolei Hu
  • Patent number: 11429494
    Abstract: Embodiments of the present disclosure provide a method for file backup, an electronic device and a computer program product. The method comprises: dividing a set of files to be backed up into a plurality of subsets of files, files in each of the plurality of subsets of files being of a same file type. The method also comprises: generating a plurality of backup files based on the plurality of subsets of files respectively, the plurality of backup files corresponding to a plurality of file types of files in the plurality of subsets of files respectively. The method further comprises: generating an overall backup file corresponding to the set of files based on the plurality of backup files.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: August 30, 2022
    Assignee: EMC IP Holding Company LLC
    Inventors: Chao Lin, Li Sun, Tao Qing
  • Patent number: 11429521
    Abstract: Systems and methods for allocation of overprovisioned blocks for minimizing write amplification in solid state drives are disclosed. An example system comprises: a plurality of memory devices and a processing device operatively coupled to the memory devices, the controller configured to: determine a value of a data stream attribute associated with a data stream; determine, based on the value of the data stream attribute, an overprovisioning factor associated with the data stream, wherein the overprovisioning factor is calculated to provide a uniform distribution of valid translation unit counts (VTCs) across the data stream; and allocate, based on the overprovisioning factor, a plurality of overprovisioned blocks to the data stream.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: August 30, 2022
    Assignee: MICRON TECHNOLOGY, INC.
    Inventors: Shirish D. Bahirat, William Akin, Aditi P. Kulkarni
  • Patent number: 11422899
    Abstract: A method for a backup operation in accordance with one or more embodiments of the invention includes obtaining, by a vulnerability analyzer executing on a backup server, a plurality of container event entries, wherein a container event entry of the plurality of container event entries specifies a an application container identifier, a container event identifier, an event severity, and an event type, selecting the container event identifier, identifying a portion of the plurality of container event entries that specify the container event identifier, generating a mean event severity based on the portion of the plurality of container event entries, generating a first vulnerability value associated with the application container identifier, and initiating a backup policy update based on a vulnerability ranking, wherein the vulnerability ranking is based on the first vulnerability value.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: August 23, 2022
    Assignee: EMC IP Holding Company LLC
    Inventors: Mahesh Reddy Appireddygari Venkataramana, Shelesh Chopra, Chetan Battal, Swaroop Shankar D H
  • Patent number: 11422939
    Abstract: Disclosed embodiments relate to a shared read request (SRR) using a common request tracker (CRT) as a temporary cache. In one example, a multi-core system includes a memory and a memory controller to receive a SRR from a core when a Leader core is not yet identified, allocate a CRT entry and store the SRR therein, mark it as a Leader, send a read request to a memory address indicated by the SRR, and when read data returns from the memory, store the read data in the CRT entry, send the read data to the Leader core, and await receipt, unless already received, of another SRR from a Follower core, the other SRR having a same address as the SRR, then, send the read data to the Follower core, and deallocate the CRT entry.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: August 23, 2022
    Assignee: Intel Corporation
    Inventors: Israel Diamand, Ravi K. Venkatesan, Shlomi Shua, Oz Shitrit, Michael Behar, Roni Rosner
  • Patent number: 11416165
    Abstract: The present disclosure is directed to systems and methods of implementing a neural network using in-memory, bit-serial, mathematical operations performed by a pipelined SRAM architecture (bit-serial PISA) circuitry disposed in on-chip processor memory circuitry. The on-chip processor memory circuitry may include processor last level cache (LLC) circuitry. The bit-serial PISA circuitry is coupled to PISA memory circuitry via a relatively high-bandwidth connection to beneficially facilitate the storage and retrieval of layer weights by the bit-serial PISA circuitry during execution. Direct memory access (DMA) circuitry transfers the neural network model and input data from system memory to the bit-serial PISA memory and also transfers output data from the PISA memory circuitry to system memory circuitry.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: August 16, 2022
    Assignee: Intel Corporation
    Inventors: Amrita Mathuriya, Sasikanth Manipatruni, Victor Lee, Huseyin Sumbul, Gregory Chen, Raghavan Kumar, Phil Knag, Ram Krishnamurthy, Ian Young, Abhishek Sharma
  • Patent number: 11416366
    Abstract: There are provided a controller and a memory system having the same. The controller includes: a background operation manager configured to determine a background operation level according to an amount of first data received from a host and an amount of second data generated in a randomization operation and an error check operation of the first data, and output a background operation signal according to the background operation level, and a processor configured to output a background command set by adjusting an operating ratio of a background operation according to the background operation signal.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: August 16, 2022
    Assignee: SK hynix Inc.
    Inventor: Eu Joon Byun
  • Patent number: 11416347
    Abstract: Architectures and mechanisms for rebuilding data on a node in a multimode system providing replicated data stores. A primary node provides a primary data store and a secondary node provides a replicated data store and replication to the second node occurs substantially synchronously during periods of normal operation for the second node. If the secondary node is available after a period of unavailability a copy of previously-replicated data on the secondary node is copied and stored when the secondary node is available after the period of unavailability before rebuilding of the secondary node to recover from the period of unavailability. The copy of the previously-replicated data can be used as a backup copy to the primary node during the rebuilding. The data on the secondary node is updated after the copy has been made. The updating comprises asynchronously writing data to the data on the secondary node. The secondary node synchronously replicates data from the primary node after the rebuilding.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: August 16, 2022
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Thomas Dings, Peter Madany
  • Patent number: 11409614
    Abstract: Embodiments described herein relate to a technique for performing an enhanced backup and restore for a computing device. The method may include: receiving, at a backup management device, a request to perform an enhanced backup operation; creating, by the backup management device, an enhanced recovery asset including computing device data items and stored on a backup storage device; performing a backup operation of a volume of the computing device to obtain a first backup container; performing a backup operation of system state information associated with the computing device to obtain a second backup container; associating the first backup container and the second backup container with the enhanced recovery asset; receiving, by the backup management device, a second request to perform a recovery operation; and performing, based on the second request, the recovery operation using at least a portion of the enhanced recovery asset.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: August 9, 2022
    Assignee: EMC IP Holding Company LLC
    Inventors: Shelesh Chopra, Sunil Yadav, Manish Sharma, Aaditya Rakesh Bansal
  • Patent number: 11403211
    Abstract: A method of operation of a storage system includes: establishing a virtual storage device 1 including allocating portions of a storage media 1, a storage media 2, a storage media N, or a combination thereof including writing data blocks to the virtual storage device 1; determining a pinning status for the data blocks; pinning the data blocks to a logical block address (LBA) range until the pinning status indicates an unpinning of the data blocks; and relocating the data blocks to the storage media 1, the storage media 2, the storage media N, or the combination thereof within the virtual storage device 1 when the pinning status indicates unpinned.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: August 2, 2022
    Assignee: Enmotus, Inc.
    Inventors: Andrew Mills, Marshall Lee
  • Patent number: 11403231
    Abstract: Hash-based application programming interface (API) importing can be prevented by allocating a name page and a guard page in memory. The name page and the guard page being associated with (i) an address of names array, (ii) an address of name ordinal array, and (iii) an address of functions array that are all generated by an operating system upon initiation of an application. The name page can then be filled with valid non-zero characters. Thereafter, protections on the guard page can be changed to no access. An entry is inserted into the address of names array pointing to a relative virtual address corresponding to anywhere within the name page. Access to the guard page causes the requesting application to terminate. Related apparatus, systems, techniques and articles are also described.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: August 2, 2022
    Assignee: Cylance Inc.
    Inventor: Jeffrey Tang